diff options
| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-04 11:11:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-04 11:11:56 -0700 |
| commit | 17ece345a042347224e50032e959ad3959638b21 (patch) | |
| tree | fd9dd89cce014a4088fda9aee837f2ac6e47ade8 | |
| parent | Merge tag 'docs-4.13' of git://git.lwn.net/linux (diff) | |
| parent | mmc: dw_mmc: remove the unnecessary slot variable (diff) | |
| download | wireguard-linux-17ece345a042347224e50032e959ad3959638b21.tar.xz wireguard-linux-17ece345a042347224e50032e959ad3959638b21.zip | |
Merge tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Add support to enable irq wake for slot gpio
- Remove MMC_CAP2_HC_ERASE_SZ and make it the default behaviour
- Improve R1 response error checks for stop commands
- Cleanup and clarify some MMC specific code
- Keep card runtime resumed while adding SDIO function devices
- Use device_property_read instead of of_property_read in mmc_of_parse()
- Move boot partition locking into a driver op to enable proper I/O scheduling
- Move multi/single-ioctl() to use block layer to enable proper I/O scheduling
- Delete bounce buffer Kconfig option
- Improve the eMMC HW reset support provided via the eMMC pwrseq
- Add host API to manage SDIO IRQs from a workqueue
MMC host:
- dw_mmc: Drop support for multiple slots
- dw_mmc: Use device_property_read instead of of_property_read
- dw_mmc-rockchip: Optional improved tuning to greatly decrease tuning time
- dw_mmc: Prevent rpm suspend for SDIO IRQs instead of always for SDIO cards
- dw_mmc: Convert to use MMC_CAP2_SDIO_IRQ_NOTHREAD for SDIO IRQs
- omap_hsmmc: Convert to mmc regulator APIs to consolidate code
- omap_hsmmc: Deprecate "vmmc_aux" in DT and use "vqmmc" instead
- tmio: make sure SDIO gets reinitialized after resume
- sdhi: add CMD23 support to R-Car Gen2 & Gen3
- tmio: add CMD23 support
- sdhi/tmio: Refactor code and rename files to simplify Kconfig options
- sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
- sdhci-pci: Add support for Intel CNP
- sdhci-esdhc-imx: Remove ENGcm07207 workaround - allow multi block transfers
- sdhci-esdhc-imx: Allow all supported prescaler values
- sdhci-esdhc-imx: Fix DAT line software reset
- sdhci-esdhc: Add SDHCI_QUIRK_32BIT_DMA_ADDR
- atmel-mci: Drop AVR32 support"
* tag 'mmc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (86 commits)
mmc: dw_mmc: remove the unnecessary slot variable
mmc: dw_mmc: use the 'slot' instead of 'cur_slot'
mmc: dw_mmc: remove the 'id' arguments about functions relevant to slot
mmc: dw_mmc: change the array of slots
mmc: dw_mmc: remove the loop about finding slots
mmc: dw_mmc: deprecated the "num-slots" property
mmc: dw_mmc-rockchip: parse rockchip, desired-num-phases from DT
dt-bindings: rockchip-dw-mshc: add optional rockchip, desired-num-phases
mmc: renesas-sdhi: improve checkpatch cleanness
mmc: tmio: improve checkpatch cleanness
mmc: sdhci-pci: Enable card detect wake for Intel BYT-related SD controllers
mmc: slot-gpio: Add support to enable irq wake on cd_irq
mmc: core: Remove MMC_CAP2_HC_ERASE_SZ
mmc: core: for data errors, take response of stop cmd into account
mmc: core: check also R1 response for stop commands
mmc: core: Clarify code for sending CSD
mmc: core: Drop mmc_all_send_cid() and use mmc_send_cxd_native() instead
mmc: core: Re-factor code for sending CID
mmc: core: Remove redundant code in mmc_send_cid()
mmc: core: Make mmc_can_reset() static
...
52 files changed, 1565 insertions, 1937 deletions
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt index 520d61dad6dd..49ed3ad2524a 100644 --- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt @@ -15,6 +15,7 @@ Required Properties: - "rockchip,rk3288-dw-mshc": for Rockchip RK3288 - "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108 - "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036 + - "rockchip,rk3328-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3328 - "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368 - "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399 @@ -31,6 +32,10 @@ Optional Properties: probing, low speeds or in case where all phases work at tuning time. If not specified 0 deg will be used. +* rockchip,desired-num-phases: The desired number of times that the host + execute tuning when needed. If not specified, the host will do tuning + for 360 times, namely tuning for each degree. + Example: rkdwmmc0@12200000 { diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt index 74166a0d460d..0e026c151c1c 100644 --- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt +++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt @@ -18,7 +18,7 @@ Required properties: Optional properties: ti,dual-volt: boolean, supports dual voltage cards <supply-name>-supply: phandle to the regulator device tree node -"supply-name" examples are "vmmc", "vmmc_aux" etc +"supply-name" examples are "vmmc", "vmmc_aux"(deprecated)/"vqmmc" etc ti,non-removable: non-removable slot (like eMMC) ti,needs-special-reset: Requires a special softreset sequence ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed diff --git a/MAINTAINERS b/MAINTAINERS index 867366bb67f1..9a55295e5efc 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12915,7 +12915,7 @@ M: Wolfram Sang <wsa+renesas@sang-engineering.com> L: linux-mmc@vger.kernel.org S: Supported F: drivers/mmc/host/tmio_mmc* -F: drivers/mmc/host/sh_mobile_sdhi.c +F: drivers/mmc/host/renesas_sdhi* F: include/linux/mfd/tmio.h TMP401 HARDWARE MONITOR DRIVER diff --git a/arch/arm/boot/dts/omap3-overo-base.dtsi b/arch/arm/boot/dts/omap3-overo-base.dtsi index 401fae838fe9..cd220342a805 100644 --- a/arch/arm/boot/dts/omap3-overo-base.dtsi +++ b/arch/arm/boot/dts/omap3-overo-base.dtsi @@ -74,16 +74,6 @@ gpio = <&gpio1 16 GPIO_ACTIVE_HIGH>; /* gpio_16: WiFi nReset */ startup-delay-us = <10000>; }; - - /* Regulator to trigger the nReset signal of the Bluetooth module */ - w3cbw003c_bt_nreset: regulator-w3cbw003c-bt-nreset { - compatible = "regulator-fixed"; - regulator-name = "regulator-w3cbw003c-bt-nreset"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - gpio = <&gpio6 4 GPIO_ACTIVE_HIGH>; /* gpio_164: BT nReset */ - startup-delay-us = <10000>; - }; }; &omap3_pmx_core { @@ -191,7 +181,6 @@ pinctrl-names = "default"; pinctrl-0 = <&mmc2_pins>; vmmc-supply = <&w3cbw003c_npoweron>; - vqmmc-supply = <&w3cbw003c_bt_nreset>; vmmc_aux-supply = <&w3cbw003c_wifi_nreset>; bus-width = <4>; cap-sdio-irq; diff --git a/drivers/mmc/core/Kconfig b/drivers/mmc/core/Kconfig index fc1ecdaaa9ca..42e89060cd41 100644 --- a/drivers/mmc/core/Kconfig +++ b/drivers/mmc/core/Kconfig @@ -61,24 +61,6 @@ config MMC_BLOCK_MINORS If unsure, say 8 here. -config MMC_BLOCK_BOUNCE - bool "Use bounce buffer for simple hosts" - depends on MMC_BLOCK - default y - help - SD/MMC is a high latency protocol where it is crucial to - send large requests in order to get high performance. Many - controllers, however, are restricted to continuous memory - (i.e. they can't do scatter-gather), something the kernel - rarely can provide. - - Say Y here to help these restricted hosts by bouncing - requests back and forth from a large buffer. You will get - a big performance gain at the cost of up to 64 KiB of - physical memory. - - If unsure, say Y here. - config SDIO_UART tristate "SDIO UART/GPS class support" depends on TTY diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 6ff94a948a4b..0cfac2d39107 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -127,14 +127,6 @@ MODULE_PARM_DESC(perdev_minors, "Minors numbers to allocate per device"); static inline int mmc_blk_part_switch(struct mmc_card *card, struct mmc_blk_data *md); -static int get_card_status(struct mmc_card *card, u32 *status, int retries); - -static void mmc_blk_requeue(struct request_queue *q, struct request *req) -{ - spin_lock_irq(q->queue_lock); - blk_requeue_request(q, req); - spin_unlock_irq(q->queue_lock); -} static struct mmc_blk_data *mmc_blk_get(struct gendisk *disk) { @@ -197,6 +189,8 @@ static ssize_t power_ro_lock_store(struct device *dev, int ret; struct mmc_blk_data *md, *part_md; struct mmc_card *card; + struct mmc_queue *mq; + struct request *req; unsigned long set; if (kstrtoul(buf, 0, &set)) @@ -206,20 +200,14 @@ static ssize_t power_ro_lock_store(struct device *dev, return count; md = mmc_blk_get(dev_to_disk(dev)); + mq = &md->queue; card = md->queue.card; - mmc_get_card(card); - - ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP, - card->ext_csd.boot_ro_lock | - EXT_CSD_BOOT_WP_B_PWR_WP_EN, - card->ext_csd.part_time); - if (ret) - pr_err("%s: Locking boot partition ro until next power on failed: %d\n", md->disk->disk_name, ret); - else - card->ext_csd.boot_ro_lock |= EXT_CSD_BOOT_WP_B_PWR_WP_EN; - - mmc_put_card(card); + /* Dispatch locking to the block layer */ + req = blk_get_request(mq->queue, REQ_OP_DRV_OUT, __GFP_RECLAIM); + req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_BOOT_WP; + blk_execute_rq(mq->queue, NULL, req, 0); + ret = req_to_mmc_queue_req(req)->drv_op_result; if (!ret) { pr_info("%s: Locking boot partition ro until next power on\n", @@ -392,7 +380,7 @@ static int ioctl_rpmb_card_status_poll(struct mmc_card *card, u32 *status, return -EINVAL; do { - err = get_card_status(card, status, 5); + err = __mmc_send_status(card, status, 5); if (err) break; @@ -450,7 +438,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md, struct mmc_request mrq = {}; struct scatterlist sg; int err; - int is_rpmb = false; + bool is_rpmb = false; u32 status = 0; if (!card || !md || !idata) @@ -570,9 +558,12 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev, struct mmc_ioc_cmd __user *ic_ptr) { struct mmc_blk_ioc_data *idata; + struct mmc_blk_ioc_data *idatas[1]; struct mmc_blk_data *md; + struct mmc_queue *mq; struct mmc_card *card; int err = 0, ioc_err = 0; + struct request *req; /* * The caller must have CAP_SYS_RAWIO, and must be calling this on the @@ -598,17 +589,21 @@ static int mmc_blk_ioctl_cmd(struct block_device *bdev, goto cmd_done; } - mmc_get_card(card); - - ioc_err = __mmc_blk_ioctl_cmd(card, md, idata); - - /* Always switch back to main area after RPMB access */ - if (md->area_type & MMC_BLK_DATA_AREA_RPMB) - mmc_blk_part_switch(card, dev_get_drvdata(&card->dev)); - - mmc_put_card(card); - + /* + * Dispatch the ioctl() into the block request queue. + */ + mq = &md->queue; + req = blk_get_request(mq->queue, + idata->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, + __GFP_RECLAIM); + idatas[0] = idata; + req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL; + req_to_mmc_queue_req(req)->idata = idatas; + req_to_mmc_queue_req(req)->ioc_count = 1; + blk_execute_rq(mq->queue, NULL, req, 0); + ioc_err = req_to_mmc_queue_req(req)->drv_op_result; err = mmc_blk_ioctl_copy_to_user(ic_ptr, idata); + blk_put_request(req); cmd_done: mmc_blk_put(md); @@ -625,8 +620,10 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev, struct mmc_ioc_cmd __user *cmds = user->cmds; struct mmc_card *card; struct mmc_blk_data *md; + struct mmc_queue *mq; int i, err = 0, ioc_err = 0; __u64 num_of_cmds; + struct request *req; /* * The caller must have CAP_SYS_RAWIO, and must be calling this on the @@ -668,21 +665,26 @@ static int mmc_blk_ioctl_multi_cmd(struct block_device *bdev, goto cmd_done; } - mmc_get_card(card); - for (i = 0; i < num_of_cmds && !ioc_err; i++) - ioc_err = __mmc_blk_ioctl_cmd(card, md, idata[i]); - - /* Always switch back to main area after RPMB access */ - if (md->area_type & MMC_BLK_DATA_AREA_RPMB) - mmc_blk_part_switch(card, dev_get_drvdata(&card->dev)); - - mmc_put_card(card); + /* + * Dispatch the ioctl()s into the block request queue. + */ + mq = &md->queue; + req = blk_get_request(mq->queue, + idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, + __GFP_RECLAIM); + req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL; + req_to_mmc_queue_req(req)->idata = idata; + req_to_mmc_queue_req(req)->ioc_count = num_of_cmds; + blk_execute_rq(mq->queue, NULL, req, 0); + ioc_err = req_to_mmc_queue_req(req)->drv_op_result; /* copy to user if data and response */ for (i = 0; i < num_of_cmds && !err; i++) err = mmc_blk_ioctl_copy_to_user(&cmds[i], idata[i]); + blk_put_request(req); + cmd_done: mmc_blk_put(md); cmd_err: @@ -852,21 +854,6 @@ static int mmc_sd_num_wr_blocks(struct mmc_card *card, u32 *written_blocks) return 0; } -static int get_card_status(struct mmc_card *card, u32 *status, int retries) -{ - struct mmc_command cmd = {}; - int err; - - cmd.opcode = MMC_SEND_STATUS; - if (!mmc_host_is_spi(card->host)) - cmd.arg = card->rca << 16; - cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC; - err = mmc_wait_for_cmd(card->host, &cmd, retries); - if (err == 0) - *status = cmd.resp[0]; - return err; -} - static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms, bool hw_busy_detect, struct request *req, bool *gen_err) { @@ -875,7 +862,7 @@ static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms, u32 status; do { - err = get_card_status(card, &status, 5); + err = __mmc_send_status(card, &status, 5); if (err) { pr_err("%s: error %d requesting status\n", req->rq_disk->disk_name, err); @@ -1043,7 +1030,7 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req, * we can't be sure the returned status is for the r/w command. */ for (retry = 2; retry >= 0; retry--) { - err = get_card_status(card, &status, 0); + err = __mmc_send_status(card, &status, 0); if (!err) break; @@ -1178,6 +1165,54 @@ int mmc_access_rpmb(struct mmc_queue *mq) return false; } +/* + * The non-block commands come back from the block layer after it queued it and + * processed it with all other requests and then they get issued in this + * function. + */ +static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req) +{ + struct mmc_queue_req *mq_rq; + struct mmc_card *card = mq->card; + struct mmc_blk_data *md = mq->blkdata; + int ret; + int i; + + mq_rq = req_to_mmc_queue_req(req); + + switch (mq_rq->drv_op) { + case MMC_DRV_OP_IOCTL: + for (i = 0; i < mq_rq->ioc_count; i++) { + ret = __mmc_blk_ioctl_cmd(card, md, mq_rq->idata[i]); + if (ret) + break; + } + /* Always switch back to main area after RPMB access */ + if (md->area_type & MMC_BLK_DATA_AREA_RPMB) + mmc_blk_part_switch(card, dev_get_drvdata(&card->dev)); + break; + case MMC_DRV_OP_BOOT_WP: + ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP, + card->ext_csd.boot_ro_lock | + EXT_CSD_BOOT_WP_B_PWR_WP_EN, + card->ext_csd.part_time); + if (ret) + pr_err("%s: Locking boot partition ro until next power on failed: %d\n", + md->disk->disk_name, ret); + else + card->ext_csd.boot_ro_lock |= + EXT_CSD_BOOT_WP_B_PWR_WP_EN; + break; + default: + pr_err("%s: unknown driver specific operation\n", + md->disk->disk_name); + ret = -EINVAL; + break; + } + mq_rq->drv_op_result = ret; + blk_end_request_all(req, ret); +} + static void mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req) { struct mmc_blk_data *md = mq->blkdata; @@ -1329,16 +1364,25 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq, R1_ADDRESS_ERROR | /* Misaligned address */ \ R1_BLOCK_LEN_ERROR | /* Transferred block length incorrect */\ R1_WP_VIOLATION | /* Tried to write to protected block */ \ + R1_CARD_ECC_FAILED | /* Card ECC failed */ \ R1_CC_ERROR | /* Card controller error */ \ R1_ERROR) /* General/unknown error */ +static bool mmc_blk_has_cmd_err(struct mmc_command *cmd) +{ + if (!cmd->error && cmd->resp[0] & CMD_ERRORS) + cmd->error = -EIO; + + return cmd->error; +} + static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, struct mmc_async_req *areq) { struct mmc_queue_req *mq_mrq = container_of(areq, struct mmc_queue_req, areq); struct mmc_blk_request *brq = &mq_mrq->brq; - struct request *req = mq_mrq->req; + struct request *req = mmc_queue_req_to_req(mq_mrq); int need_retune = card->host->need_retune; bool ecc_err = false; bool gen_err = false; @@ -1353,7 +1397,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, * stop.error indicates a problem with the stop command. Data * may have been transferred, or may still be transferring. */ - if (brq->sbc.error || brq->cmd.error || brq->stop.error || + if (brq->sbc.error || brq->cmd.error || mmc_blk_has_cmd_err(&brq->stop) || brq->data.error) { switch (mmc_blk_cmd_recovery(card, req, brq, &ecc_err, &gen_err)) { case ERR_RETRY: @@ -1407,7 +1451,8 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, return MMC_BLK_RETRY; } - if (brq->data.error) { + /* Some errors (ECC) are flagged on the next commmand, so check stop, too */ + if (brq->data.error || brq->stop.error) { if (need_retune && !brq->retune_retry_done) { pr_debug("%s: retrying because a re-tune was needed\n", req->rq_disk->disk_name); @@ -1415,7 +1460,7 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card, return MMC_BLK_RETRY; } pr_err("%s: error %d transferring data, sector %u, nr %u, cmd response %#x, card status %#x\n", - req->rq_disk->disk_name, brq->data.error, + req->rq_disk->disk_name, brq->data.error ?: brq->stop.error, (unsigned)blk_rq_pos(req), (unsigned)blk_rq_sectors(req), brq->cmd.resp[0], brq->stop.resp[0]); @@ -1445,7 +1490,7 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq, struct mmc_blk_data *md = mq->blkdata; struct mmc_card *card = md->queue.card; struct mmc_blk_request *brq = &mqrq->brq; - struct request *req = mqrq->req; + struct request *req = mmc_queue_req_to_req(mqrq); /* * Reliable writes are used to implement Forced Unit Access and @@ -1550,7 +1595,7 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, { u32 readcmd, writecmd; struct mmc_blk_request *brq = &mqrq->brq; - struct request *req = mqrq->req; + struct request *req = mmc_queue_req_to_req(mqrq); struct mmc_blk_data *md = mq->blkdata; bool do_rel_wr, do_data_tag; @@ -1647,7 +1692,7 @@ static void mmc_blk_rw_cmd_abort(struct mmc_queue *mq, struct mmc_card *card, if (mmc_card_removed(card)) req->rq_flags |= RQF_QUIET; while (blk_end_request(req, BLK_STS_IOERR, blk_rq_cur_bytes(req))); - mmc_queue_req_free(mq, mqrq); + mq->qcnt--; } /** @@ -1667,7 +1712,7 @@ static void mmc_blk_rw_try_restart(struct mmc_queue *mq, struct request *req, if (mmc_card_removed(mq->card)) { req->rq_flags |= RQF_QUIET; blk_end_request_all(req, BLK_STS_IOERR); - mmc_queue_req_free(mq, mqrq); + mq->qcnt--; /* FIXME: just set to 0? */ return; } /* Else proceed and try to restart the current async request */ @@ -1690,12 +1735,8 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req) bool req_pending = true; if (new_req) { - mqrq_cur = mmc_queue_req_find(mq, new_req); - if (!mqrq_cur) { - WARN_ON(1); - mmc_blk_requeue(mq->queue, new_req); - new_req = NULL; - } + mqrq_cur = req_to_mmc_queue_req(new_req); + mq->qcnt++; } if (!mq->qcnt) @@ -1736,7 +1777,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req) */ mq_rq = container_of(old_areq, struct mmc_queue_req, areq); brq = &mq_rq->brq; - old_req = mq_rq->req; + old_req = mmc_queue_req_to_req(mq_rq); type = rq_data_dir(old_req) == READ ? MMC_BLK_READ : MMC_BLK_WRITE; mmc_queue_bounce_post(mq_rq); @@ -1769,12 +1810,12 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req) if (req_pending) mmc_blk_rw_cmd_abort(mq, card, old_req, mq_rq); else - mmc_queue_req_free(mq, mq_rq); + mq->qcnt--; mmc_blk_rw_try_restart(mq, new_req, mqrq_cur); return; } if (!req_pending) { - mmc_queue_req_free(mq, mq_rq); + mq->qcnt--; mmc_blk_rw_try_restart(mq, new_req, mqrq_cur); return; } @@ -1819,7 +1860,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req) req_pending = blk_end_request(old_req, BLK_STS_IOERR, brq->data.blksz); if (!req_pending) { - mmc_queue_req_free(mq, mq_rq); + mq->qcnt--; mmc_blk_rw_try_restart(mq, new_req, mqrq_cur); return; } @@ -1849,7 +1890,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req) } } while (req_pending); - mmc_queue_req_free(mq, mq_rq); + mq->qcnt--; } void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) @@ -1870,23 +1911,54 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req) goto out; } - if (req && req_op(req) == REQ_OP_DISCARD) { - /* complete ongoing async transfer before issuing discard */ - if (mq->qcnt) - mmc_blk_issue_rw_rq(mq, NULL); - mmc_blk_issue_discard_rq(mq, req); - } else if (req && req_op(req) == REQ_OP_SECURE_ERASE) { - /* complete ongoing async transfer before issuing secure erase*/ - if (mq->qcnt) - mmc_blk_issue_rw_rq(mq, NULL); - mmc_blk_issue_secdiscard_rq(mq, req); - } else if (req && req_op(req) == REQ_OP_FLUSH) { - /* complete ongoing async transfer before issuing flush */ - if (mq->qcnt) - mmc_blk_issue_rw_rq(mq, NULL); - mmc_blk_issue_flush(mq, req); + if (req) { + switch (req_op(req)) { + case REQ_OP_DRV_IN: + case REQ_OP_DRV_OUT: + /* + * Complete ongoing async transfer before issuing + * ioctl()s + */ + if (mq->qcnt) + mmc_blk_issue_rw_rq(mq, NULL); + mmc_blk_issue_drv_op(mq, req); + break; + case REQ_OP_DISCARD: + /* + * Complete ongoing async transfer before issuing + * discard. + */ + if (mq->qcnt) + mmc_blk_issue_rw_rq(mq, NULL); + mmc_blk_issue_discard_rq(mq, req); + break; + case REQ_OP_SECURE_ERASE: + /* + * Complete ongoing async transfer before issuing + * secure erase. + */ + if (mq->qcnt) + mmc_blk_issue_rw_rq(mq, NULL); + mmc_blk_issue_secdiscard_rq(mq, req); + break; + case REQ_OP_FLUSH: + /* + * Complete ongoing async transfer before issuing + * flush. + */ + if (mq->qcnt) + mmc_blk_issue_rw_rq(mq, NULL); + mmc_blk_issue_flush(mq, req); + break; + default: + /* Normal request, just issue it */ + mmc_blk_issue_rw_rq(mq, req); + card->host->context_info.is_waiting_last_req = false; + break; + } } else { - mmc_blk_issue_rw_rq(mq, req); + /* No request, flushing the pipeline with NULL */ + mmc_blk_issue_rw_rq(mq, NULL); card->host->context_info.is_waiting_last_req = false; } @@ -2171,7 +2243,6 @@ static int mmc_blk_probe(struct mmc_card *card) { struct mmc_blk_data *md, *part_md; char cap_str[10]; - int ret; /* * Check that the card supports the command class(es) we need. @@ -2181,15 +2252,9 @@ static int mmc_blk_probe(struct mmc_card *card) mmc_fixup_device(card, mmc_blk_fixups); - ret = mmc_queue_alloc_shared_queue(card); - if (ret) - return ret; - md = mmc_blk_alloc(card); - if (IS_ERR(md)) { - mmc_queue_free_shared_queue(card); + if (IS_ERR(md)) return PTR_ERR(md); - } string_get_size((u64)get_capacity(md->disk), 512, STRING_UNITS_2, cap_str, sizeof(cap_str)); @@ -2227,7 +2292,6 @@ static int mmc_blk_probe(struct mmc_card *card) out: mmc_blk_remove_parts(card, md); mmc_blk_remove_req(md); - mmc_queue_free_shared_queue(card); return 0; } @@ -2245,7 +2309,6 @@ static void mmc_blk_remove(struct mmc_card *card) pm_runtime_put_noidle(&card->dev); mmc_blk_remove_req(md); dev_set_drvdata(&card->dev, NULL); - mmc_queue_free_shared_queue(card); } static int _mmc_blk_suspend(struct mmc_card *card) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 82c45ddfa202..26431267a3e2 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -53,12 +53,6 @@ /* If the device is not responding */ #define MMC_CORE_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ -/* - * Background operations can take a long time, depending on the housekeeping - * operations the card has to perform. - */ -#define MMC_BKOPS_MAX_TIMEOUT (4 * 60 * 1000) /* max time to wait in ms */ - /* The max erase timeout, used when host->max_busy_timeout isn't specified */ #define MMC_ERASE_TIMEOUT_MS (60 * 1000) /* 60 s */ @@ -362,74 +356,6 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq) return 0; } -/** - * mmc_start_bkops - start BKOPS for supported cards - * @card: MMC card to start BKOPS - * @form_exception: A flag to indicate if this function was - * called due to an exception raised by the card - * - * Start background operations whenever requested. - * When the urgent BKOPS bit is set in a R1 command response - * then background operations should be started immediately. -*/ -void mmc_start_bkops(struct mmc_card *card, bool from_exception) -{ - int err; - int timeout; - bool use_busy_signal; - - if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card)) - return; - - err = mmc_read_bkops_status(card); - if (err) { - pr_err("%s: Failed to read bkops status: %d\n", - mmc_hostname(card->host), err); - return; - } - - if (!card->ext_csd.raw_bkops_status) - return; - - if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 && - from_exception) - return; - - mmc_claim_host(card->host); - if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) { - timeout = MMC_BKOPS_MAX_TIMEOUT; - use_busy_signal = true; - } else { - timeout = 0; - use_busy_signal = false; - } - - mmc_retune_hold(card->host); - - err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_BKOPS_START, 1, timeout, 0, - use_busy_signal, true, false); - if (err) { - pr_warn("%s: Error %d starting bkops\n", - mmc_hostname(card->host), err); - mmc_retune_release(card->host); - goto out; - } - - /* - * For urgent bkops status (LEVEL_2 and more) - * bkops executed synchronously, otherwise - * the operation is in progress - */ - if (!use_busy_signal) - mmc_card_set_doing_bkops(card); - else - mmc_retune_release(card->host); -out: - mmc_release_host(card->host); -} -EXPORT_SYMBOL(mmc_start_bkops); - /* * mmc_wait_data_done() - done callback for data request * @mrq: done data request @@ -749,71 +675,6 @@ void mmc_wait_for_req(struct mmc_host *host, struct mmc_request *mrq) EXPORT_SYMBOL(mmc_wait_for_req); /** - * mmc_interrupt_hpi - Issue for High priority Interrupt - * @card: the MMC card associated with the HPI transfer - * - * Issued High Priority Interrupt, and check for card status - * until out-of prg-state. - */ -int mmc_interrupt_hpi(struct mmc_card *card) -{ - int err; - u32 status; - unsigned long prg_wait; - - if (!card->ext_csd.hpi_en) { - pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host)); - return 1; - } - - mmc_claim_host(card->host); - err = mmc_send_status(card, &status); - if (err) { - pr_err("%s: Get card status fail\n", mmc_hostname(card->host)); - goto out; - } - - switch (R1_CURRENT_STATE(status)) { - case R1_STATE_IDLE: - case R1_STATE_READY: - case R1_STATE_STBY: - case R1_STATE_TRAN: - /* - * In idle and transfer states, HPI is not needed and the caller - * can issue the next intended command immediately - */ - goto out; - case R1_STATE_PRG: - break; - default: - /* In all other states, it's illegal to issue HPI */ - pr_debug("%s: HPI cannot be sent. Card state=%d\n", - mmc_hostname(card->host), R1_CURRENT_STATE(status)); - err = -EINVAL; - goto out; - } - - err = mmc_send_hpi_cmd(card, &status); - if (err) - goto out; - - prg_wait = jiffies + msecs_to_jiffies(card->ext_csd.out_of_int_time); - do { - err = mmc_send_status(card, &status); - - if (!err && R1_CURRENT_STATE(status) == R1_STATE_TRAN) - break; - if (time_after(jiffies, prg_wait)) - err = -ETIMEDOUT; - } while (!err); - -out: - mmc_release_host(card->host); - return err; -} -EXPORT_SYMBOL(mmc_interrupt_hpi); - -/** * mmc_wait_for_cmd - start a command and wait for completion * @host: MMC host to start command * @cmd: MMC command to start @@ -843,53 +704,6 @@ int mmc_wait_for_cmd(struct mmc_host *host, struct mmc_command *cmd, int retries EXPORT_SYMBOL(mmc_wait_for_cmd); /** - * mmc_stop_bkops - stop ongoing BKOPS - * @card: MMC card to check BKOPS - * - * Send HPI command to stop ongoing background operations to - * allow rapid servicing of foreground operations, e.g. read/ - * writes. Wait until the card comes out of the programming state - * to avoid errors in servicing read/write requests. - */ -int mmc_stop_bkops(struct mmc_card *card) -{ - int err = 0; - - err = mmc_interrupt_hpi(card); - - /* - * If err is EINVAL, we can't issue an HPI. - * It should complete the BKOPS. - */ - if (!err || (err == -EINVAL)) { - mmc_card_clr_doing_bkops(card); - mmc_retune_release(card->host); - err = 0; - } - - return err; -} -EXPORT_SYMBOL(mmc_stop_bkops); - -int mmc_read_bkops_status(struct mmc_card *card) -{ - int err; - u8 *ext_csd; - - mmc_claim_host(card->host); - err = mmc_get_ext_csd(card, &ext_csd); - mmc_release_host(card->host); - if (err) - return err; - - card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS]; - card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS]; - kfree(ext_csd); - return 0; -} -EXPORT_SYMBOL(mmc_read_bkops_status); - -/** * mmc_set_data_timeout - set the timeout for a data command * @data: data phase for command * @card: the MMC card associated with the data transfer @@ -2597,6 +2411,8 @@ EXPORT_SYMBOL(mmc_set_blockcount); static void mmc_hw_reset_for_init(struct mmc_host *host) { + mmc_pwrseq_reset(host); + if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset) return; host->ops->hw_reset(host); @@ -2836,8 +2652,11 @@ void mmc_stop_host(struct mmc_host *host) host->removed = 1; spin_unlock_irqrestore(&host->lock, flags); #endif - if (host->slot.cd_irq >= 0) + if (host->slot.cd_irq >= 0) { + if (host->slot.cd_wake_enabled) + disable_irq_wake(host->slot.cd_irq); disable_irq(host->slot.cd_irq); + } host->rescan_disable = 1; cancel_delayed_work_sync(&host->detect); @@ -2913,27 +2732,6 @@ int mmc_power_restore_host(struct mmc_host *host) } EXPORT_SYMBOL(mmc_power_restore_host); -/* - * Flush the cache to the non-volatile storage. - */ -int mmc_flush_cache(struct mmc_card *card) -{ - int err = 0; - - if (mmc_card_mmc(card) && - (card->ext_csd.cache_size > 0) && - (card->ext_csd.cache_ctrl & 1)) { - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_FLUSH_CACHE, 1, 0); - if (err) - pr_err("%s: cache flush error %d\n", - mmc_hostname(card->host), err); - } - - return err; -} -EXPORT_SYMBOL(mmc_flush_cache); - #ifdef CONFIG_PM_SLEEP /* Do the card removal on suspend if card is assumed removeable * Do that in pm notifier while userspace isn't yet frozen, so we will be able diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 3f8c85d5aa09..1503412f826c 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -30,6 +30,7 @@ #include "host.h" #include "slot-gpio.h" #include "pwrseq.h" +#include "sdio_ops.h" #define cls_dev_to_mmc_host(d) container_of(d, struct mmc_host, class_dev) @@ -176,19 +177,17 @@ static void mmc_retune_timer(unsigned long data) */ int mmc_of_parse(struct mmc_host *host) { - struct device_node *np; + struct device *dev = host->parent; u32 bus_width; int ret; bool cd_cap_invert, cd_gpio_invert = false; bool ro_cap_invert, ro_gpio_invert = false; - if (!host->parent || !host->parent->of_node) + if (!dev || !dev_fwnode(dev)) return 0; - np = host->parent->of_node; - /* "bus-width" is translated to MMC_CAP_*_BIT_DATA flags */ - if (of_property_read_u32(np, "bus-width", &bus_width) < 0) { + if (device_property_read_u32(dev, "bus-width", &bus_width) < 0) { dev_dbg(host->parent, "\"bus-width\" property is missing, assuming 1 bit.\n"); bus_width = 1; @@ -210,7 +209,7 @@ int mmc_of_parse(struct mmc_host *host) } /* f_max is obtained from the optional "max-frequency" property */ - of_property_read_u32(np, "max-frequency", &host->f_max); + device_property_read_u32(dev, "max-frequency", &host->f_max); /* * Configure CD and WP pins. They are both by default active low to @@ -225,12 +224,12 @@ int mmc_of_parse(struct mmc_host *host) */ /* Parse Card Detection */ - if (of_property_read_bool(np, "non-removable")) { + if (device_property_read_bool(dev, "non-removable")) { host->caps |= MMC_CAP_NONREMOVABLE; } else { - cd_cap_invert = of_property_read_bool(np, "cd-inverted"); + cd_cap_invert = device_property_read_bool(dev, "cd-inverted"); - if (of_property_read_bool(np, "broken-cd")) + if (device_property_read_bool(dev, "broken-cd")) host->caps |= MMC_CAP_NEEDS_POLL; ret = mmc_gpiod_request_cd(host, "cd", 0, true, @@ -256,7 +255,7 @@ int mmc_of_parse(struct mmc_host *host) } /* Parse Write Protection */ - ro_cap_invert = of_property_read_bool(np, "wp-inverted"); + ro_cap_invert = device_property_read_bool(dev, "wp-inverted"); ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert); if (!ret) @@ -264,64 +263,64 @@ int mmc_of_parse(struct mmc_host *host) else if (ret != -ENOENT && ret != -ENOSYS) return ret; - if (of_property_read_bool(np, "disable-wp")) + if (device_property_read_bool(dev, "disable-wp")) host->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; /* See the comment on CD inversion above */ if (ro_cap_invert ^ ro_gpio_invert) host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; - if (of_property_read_bool(np, "cap-sd-highspeed")) + if (device_property_read_bool(dev, "cap-sd-highspeed")) host->caps |= MMC_CAP_SD_HIGHSPEED; - if (of_property_read_bool(np, "cap-mmc-highspeed")) + if (device_property_read_bool(dev, "cap-mmc-highspeed")) host->caps |= MMC_CAP_MMC_HIGHSPEED; - if (of_property_read_bool(np, "sd-uhs-sdr12")) + if (device_property_read_bool(dev, "sd-uhs-sdr12")) host->caps |= MMC_CAP_UHS_SDR12; - if (of_property_read_bool(np, "sd-uhs-sdr25")) + if (device_property_read_bool(dev, "sd-uhs-sdr25")) host->caps |= MMC_CAP_UHS_SDR25; - if (of_property_read_bool(np, "sd-uhs-sdr50")) + if (device_property_read_bool(dev, "sd-uhs-sdr50")) host->caps |= MMC_CAP_UHS_SDR50; - if (of_property_read_bool(np, "sd-uhs-sdr104")) + if (device_property_read_bool(dev, "sd-uhs-sdr104")) host->caps |= MMC_CAP_UHS_SDR104; - if (of_property_read_bool(np, "sd-uhs-ddr50")) + if (device_property_read_bool(dev, "sd-uhs-ddr50")) host->caps |= MMC_CAP_UHS_DDR50; - if (of_property_read_bool(np, "cap-power-off-card")) + if (device_property_read_bool(dev, "cap-power-off-card")) host->caps |= MMC_CAP_POWER_OFF_CARD; - if (of_property_read_bool(np, "cap-mmc-hw-reset")) + if (device_property_read_bool(dev, "cap-mmc-hw-reset")) host->caps |= MMC_CAP_HW_RESET; - if (of_property_read_bool(np, "cap-sdio-irq")) + if (device_property_read_bool(dev, "cap-sdio-irq")) host->caps |= MMC_CAP_SDIO_IRQ; - if (of_property_read_bool(np, "full-pwr-cycle")) + if (device_property_read_bool(dev, "full-pwr-cycle")) host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE; - if (of_property_read_bool(np, "keep-power-in-suspend")) + if (device_property_read_bool(dev, "keep-power-in-suspend")) host->pm_caps |= MMC_PM_KEEP_POWER; - if (of_property_read_bool(np, "wakeup-source") || - of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */ + if (device_property_read_bool(dev, "wakeup-source") || + device_property_read_bool(dev, "enable-sdio-wakeup")) /* legacy */ host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; - if (of_property_read_bool(np, "mmc-ddr-3_3v")) + if (device_property_read_bool(dev, "mmc-ddr-3_3v")) host->caps |= MMC_CAP_3_3V_DDR; - if (of_property_read_bool(np, "mmc-ddr-1_8v")) + if (device_property_read_bool(dev, "mmc-ddr-1_8v")) host->caps |= MMC_CAP_1_8V_DDR; - if (of_property_read_bool(np, "mmc-ddr-1_2v")) + if (device_property_read_bool(dev, "mmc-ddr-1_2v")) host->caps |= MMC_CAP_1_2V_DDR; - if (of_property_read_bool(np, "mmc-hs200-1_8v")) + if (device_property_read_bool(dev, "mmc-hs200-1_8v")) host->caps2 |= MMC_CAP2_HS200_1_8V_SDR; - if (of_property_read_bool(np, "mmc-hs200-1_2v")) + if (device_property_read_bool(dev, "mmc-hs200-1_2v")) host->caps2 |= MMC_CAP2_HS200_1_2V_SDR; - if (of_property_read_bool(np, "mmc-hs400-1_8v")) + if (device_property_read_bool(dev, "mmc-hs400-1_8v")) host->caps2 |= MMC_CAP2_HS400_1_8V | MMC_CAP2_HS200_1_8V_SDR; - if (of_property_read_bool(np, "mmc-hs400-1_2v")) + if (device_property_read_bool(dev, "mmc-hs400-1_2v")) host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR; - if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe")) + if (device_property_read_bool(dev, "mmc-hs400-enhanced-strobe")) host->caps2 |= MMC_CAP2_HS400_ES; - if (of_property_read_bool(np, "no-sdio")) + if (device_property_read_bool(dev, "no-sdio")) host->caps2 |= MMC_CAP2_NO_SDIO; - if (of_property_read_bool(np, "no-sd")) + if (device_property_read_bool(dev, "no-sd")) host->caps2 |= MMC_CAP2_NO_SD; - if (of_property_read_bool(np, "no-mmc")) + if (device_property_read_bool(dev, "no-mmc")) host->caps2 |= MMC_CAP2_NO_MMC; - host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr); + host->dsr_req = !device_property_read_u32(dev, "dsr", &host->dsr); if (host->dsr_req && (host->dsr & ~0xffff)) { dev_err(host->parent, "device tree specified broken value for DSR: 0x%x, ignoring\n", @@ -379,6 +378,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) spin_lock_init(&host->lock); init_waitqueue_head(&host->wq); INIT_DELAYED_WORK(&host->detect, mmc_rescan); + INIT_DELAYED_WORK(&host->sdio_irq_work, sdio_irq_work); setup_timer(&host->retune_timer, mmc_retune_timer, (unsigned long)host); /* diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 2c87dede5841..4ffea14b7eb6 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -27,6 +27,7 @@ #include "mmc_ops.h" #include "quirks.h" #include "sd_ops.h" +#include "pwrseq.h" #define DEFAULT_CMD6_TIMEOUT_MS 500 @@ -1555,10 +1556,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, /* * Fetch CID from card. */ - if (mmc_host_is_spi(host)) - err = mmc_send_cid(host, cid); - else - err = mmc_all_send_cid(host, cid); + err = mmc_send_cid(host, cid); if (err) goto err; @@ -1653,12 +1651,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, mmc_set_erase_size(card); } - /* - * If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF - * bit. This bit will be lost every time after a reset or power off. - */ - if (card->ext_csd.partition_setting_completed || - (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) { + /* Enable ERASE_GRP_DEF. This bit is lost after a reset or power off. */ + if (card->ext_csd.rev >= 3) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_ERASE_GROUP_DEF, 1, card->ext_csd.generic_cmd6_time); @@ -2096,7 +2090,7 @@ static int mmc_runtime_resume(struct mmc_host *host) return 0; } -int mmc_can_reset(struct mmc_card *card) +static int mmc_can_reset(struct mmc_card *card) { u8 rst_n_function; @@ -2105,7 +2099,6 @@ int mmc_can_reset(struct mmc_card *card) return 0; return 1; } -EXPORT_SYMBOL(mmc_can_reset); static int mmc_reset(struct mmc_host *host) { @@ -2127,6 +2120,7 @@ static int mmc_reset(struct mmc_host *host) } else { /* Do a brute force power cycle */ mmc_power_cycle(host, card->ocr); + mmc_pwrseq_reset(host); } return mmc_init_card(host, card->ocr, card); } diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 78f75f00efc5..5f7c5920231a 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -19,6 +19,7 @@ #include <linux/mmc/mmc.h> #include "core.h" +#include "card.h" #include "host.h" #include "mmc_ops.h" @@ -54,7 +55,7 @@ static const u8 tuning_blk_pattern_8bit[] = { 0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, }; -int mmc_send_status(struct mmc_card *card, u32 *status) +int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries) { int err; struct mmc_command cmd = {}; @@ -64,7 +65,7 @@ int mmc_send_status(struct mmc_card *card, u32 *status) cmd.arg = card->rca << 16; cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC; - err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES); + err = mmc_wait_for_cmd(card->host, &cmd, retries); if (err) return err; @@ -76,6 +77,12 @@ int mmc_send_status(struct mmc_card *card, u32 *status) return 0; } +EXPORT_SYMBOL_GPL(__mmc_send_status); + +int mmc_send_status(struct mmc_card *card, u32 *status) +{ + return __mmc_send_status(card, status, MMC_CMD_RETRIES); +} static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card) { @@ -200,24 +207,6 @@ int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr) return err; } -int mmc_all_send_cid(struct mmc_host *host, u32 *cid) -{ - int err; - struct mmc_command cmd = {}; - - cmd.opcode = MMC_ALL_SEND_CID; - cmd.arg = 0; - cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR; - - err = mmc_wait_for_cmd(host, &cmd, MMC_CMD_RETRIES); - if (err) - return err; - - memcpy(cid, cmd.resp, sizeof(u32) * 4); - - return 0; -} - int mmc_set_relative_addr(struct mmc_card *card) { struct mmc_command cmd = {}; @@ -302,15 +291,11 @@ mmc_send_cxd_data(struct mmc_card *card, struct mmc_host *host, return 0; } -int mmc_send_csd(struct mmc_card *card, u32 *csd) +static int mmc_spi_send_csd(struct mmc_card *card, u32 *csd) { int ret, i; __be32 *csd_tmp; - if (!mmc_host_is_spi(card->host)) - return mmc_send_cxd_native(card->host, card->rca << 16, - csd, MMC_SEND_CSD); - csd_tmp = kzalloc(16, GFP_KERNEL); if (!csd_tmp) return -ENOMEM; @@ -327,18 +312,20 @@ err: return ret; } -int mmc_send_cid(struct mmc_host *host, u32 *cid) +int mmc_send_csd(struct mmc_card *card, u32 *csd) +{ + if (mmc_host_is_spi(card->host)) + return mmc_spi_send_csd(card, csd); + + return mmc_send_cxd_native(card->host, card->rca << 16, csd, + MMC_SEND_CSD); +} + +static int mmc_spi_send_cid(struct mmc_host *host, u32 *cid) { int ret, i; __be32 *cid_tmp; - if (!mmc_host_is_spi(host)) { - if (!host->card) - return -EINVAL; - return mmc_send_cxd_native(host, host->card->rca << 16, - cid, MMC_SEND_CID); - } - cid_tmp = kzalloc(16, GFP_KERNEL); if (!cid_tmp) return -ENOMEM; @@ -355,6 +342,14 @@ err: return ret; } +int mmc_send_cid(struct mmc_host *host, u32 *cid) +{ + if (mmc_host_is_spi(host)) + return mmc_spi_send_cid(host, cid); + + return mmc_send_cxd_native(host, 0, cid, MMC_ALL_SEND_CID); +} + int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd) { int err; @@ -800,7 +795,7 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width) return mmc_send_bus_test(card, card->host, MMC_BUS_TEST_R, width); } -int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status) +static int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status) { struct mmc_command cmd = {}; unsigned int opcode; @@ -834,11 +829,208 @@ int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status) return 0; } +/** + * mmc_interrupt_hpi - Issue for High priority Interrupt + * @card: the MMC card associated with the HPI transfer + * + * Issued High Priority Interrupt, and check for card status + * until out-of prg-state. + */ +int mmc_interrupt_hpi(struct mmc_card *card) +{ + int err; + u32 status; + unsigned long prg_wait; + + if (!card->ext_csd.hpi_en) { + pr_info("%s: HPI enable bit unset\n", mmc_hostname(card->host)); + return 1; + } + + mmc_claim_host(card->host); + err = mmc_send_status(card, &status); + if (err) { + pr_err("%s: Get card status fail\n", mmc_hostname(card->host)); + goto out; + } + + switch (R1_CURRENT_STATE(status)) { + case R1_STATE_IDLE: + case R1_STATE_READY: + case R1_STATE_STBY: + case R1_STATE_TRAN: + /* + * In idle and transfer states, HPI is not needed and the caller + * can issue the next intended command immediately + */ + goto out; + case R1_STATE_PRG: + break; + default: + /* In all other states, it's illegal to issue HPI */ + pr_debug("%s: HPI cannot be sent. Card state=%d\n", + mmc_hostname(card->host), R1_CURRENT_STATE(status)); + err = -EINVAL; + goto out; + } + + err = mmc_send_hpi_cmd(card, &status); + if (err) + goto out; + + prg_wait = jiffies + msecs_to_jiffies(card->ext_csd.out_of_int_time); + do { + err = mmc_send_status(card, &status); + + if (!err && R1_CURRENT_STATE(status) == R1_STATE_TRAN) + break; + if (time_after(jiffies, prg_wait)) + err = -ETIMEDOUT; + } while (!err); + +out: + mmc_release_host(card->host); + return err; +} + int mmc_can_ext_csd(struct mmc_card *card) { return (card && card->csd.mmca_vsn > CSD_SPEC_VER_3); } +/** + * mmc_stop_bkops - stop ongoing BKOPS + * @card: MMC card to check BKOPS + * + * Send HPI command to stop ongoing background operations to + * allow rapid servicing of foreground operations, e.g. read/ + * writes. Wait until the card comes out of the programming state + * to avoid errors in servicing read/write requests. + */ +int mmc_stop_bkops(struct mmc_card *card) +{ + int err = 0; + + err = mmc_interrupt_hpi(card); + + /* + * If err is EINVAL, we can't issue an HPI. + * It should complete the BKOPS. + */ + if (!err || (err == -EINVAL)) { + mmc_card_clr_doing_bkops(card); + mmc_retune_release(card->host); + err = 0; + } + + return err; +} + +static int mmc_read_bkops_status(struct mmc_card *card) +{ + int err; + u8 *ext_csd; + + mmc_claim_host(card->host); + err = mmc_get_ext_csd(card, &ext_csd); + mmc_release_host(card->host); + if (err) + return err; + + card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS]; + card->ext_csd.raw_exception_status = ext_csd[EXT_CSD_EXP_EVENTS_STATUS]; + kfree(ext_csd); + return 0; +} + +/** + * mmc_start_bkops - start BKOPS for supported cards + * @card: MMC card to start BKOPS + * @form_exception: A flag to indicate if this function was + * called due to an exception raised by the card + * + * Start background operations whenever requested. + * When the urgent BKOPS bit is set in a R1 command response + * then background operations should be started immediately. +*/ +void mmc_start_bkops(struct mmc_card *card, bool from_exception) +{ + int err; + int timeout; + bool use_busy_signal; + + if (!card->ext_csd.man_bkops_en || mmc_card_doing_bkops(card)) + return; + + err = mmc_read_bkops_status(card); + if (err) { + pr_err("%s: Failed to read bkops status: %d\n", + mmc_hostname(card->host), err); + return; + } + + if (!card->ext_csd.raw_bkops_status) + return; + + if (card->ext_csd.raw_bkops_status < EXT_CSD_BKOPS_LEVEL_2 && + from_exception) + return; + + mmc_claim_host(card->host); + if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) { + timeout = MMC_OPS_TIMEOUT_MS; + use_busy_signal = true; + } else { + timeout = 0; + use_busy_signal = false; + } + + mmc_retune_hold(card->host); + + err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_BKOPS_START, 1, timeout, 0, + use_busy_signal, true, false); + if (err) { + pr_warn("%s: Error %d starting bkops\n", + mmc_hostname(card->host), err); + mmc_retune_release(card->host); + goto out; + } + + /* + * For urgent bkops status (LEVEL_2 and more) + * bkops executed synchronously, otherwise + * the operation is in progress + */ + if (!use_busy_signal) + mmc_card_set_doing_bkops(card); + else + mmc_retune_release(card->host); +out: + mmc_release_host(card->host); +} + +/* + * Flush the cache to the non-volatile storage. + */ +int mmc_flush_cache(struct mmc_card *card) +{ + int err = 0; + + if (mmc_card_mmc(card) && + (card->ext_csd.cache_size > 0) && + (card->ext_csd.cache_ctrl & 1)) { + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_FLUSH_CACHE, 1, 0); + if (err) + pr_err("%s: cache flush error %d\n", + mmc_hostname(card->host), err); + } + + return err; +} +EXPORT_SYMBOL(mmc_flush_cache); + static int mmc_cmdq_switch(struct mmc_card *card, bool enable) { u8 val = enable ? EXT_CSD_CMDQ_MODE_ENABLED : 0; diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index 978bd2e60f8a..a1390d486381 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -22,15 +22,14 @@ int mmc_deselect_cards(struct mmc_host *host); int mmc_set_dsr(struct mmc_host *host); int mmc_go_idle(struct mmc_host *host); int mmc_send_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr); -int mmc_all_send_cid(struct mmc_host *host, u32 *cid); int mmc_set_relative_addr(struct mmc_card *card); int mmc_send_csd(struct mmc_card *card, u32 *csd); +int __mmc_send_status(struct mmc_card *card, u32 *status, unsigned int retries); int mmc_send_status(struct mmc_card *card, u32 *status); int mmc_send_cid(struct mmc_host *host, u32 *cid); int mmc_spi_read_ocr(struct mmc_host *host, int highcap, u32 *ocrp); int mmc_spi_set_crc(struct mmc_host *host, int use_crc); int mmc_bus_test(struct mmc_card *card, u8 bus_width); -int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status); int mmc_interrupt_hpi(struct mmc_card *card); int mmc_can_ext_csd(struct mmc_card *card); int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); @@ -42,9 +41,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, unsigned int timeout_ms); int mmc_stop_bkops(struct mmc_card *card); -int mmc_read_bkops_status(struct mmc_card *card); void mmc_start_bkops(struct mmc_card *card, bool from_exception); -int mmc_can_reset(struct mmc_card *card); int mmc_flush_cache(struct mmc_card *card); int mmc_cmdq_enable(struct mmc_card *card); int mmc_cmdq_disable(struct mmc_card *card); diff --git a/drivers/mmc/core/mmc_test.c b/drivers/mmc/core/mmc_test.c index fd1b4b8510b9..7a304a6e5bf1 100644 --- a/drivers/mmc/core/mmc_test.c +++ b/drivers/mmc/core/mmc_test.c @@ -3220,8 +3220,6 @@ static int __mmc_test_register_dbgfs_file(struct mmc_card *card, df = kmalloc(sizeof(*df), GFP_KERNEL); if (!df) { debugfs_remove(file); - dev_err(&card->dev, - "Can't allocate memory for internal usage.\n"); return -ENOMEM; } diff --git a/drivers/mmc/core/pwrseq.c b/drivers/mmc/core/pwrseq.c index 9386c4771814..e3ad30fa8307 100644 --- a/drivers/mmc/core/pwrseq.c +++ b/drivers/mmc/core/pwrseq.c @@ -76,6 +76,14 @@ void mmc_pwrseq_power_off(struct mmc_host *host) pwrseq->ops->power_off(host); } +void mmc_pwrseq_reset(struct mmc_host *host) +{ + struct mmc_pwrseq *pwrseq = host->pwrseq; + + if (pwrseq && pwrseq->ops->reset) + pwrseq->ops->reset(host); +} + void mmc_pwrseq_free(struct mmc_host *host) { struct mmc_pwrseq *pwrseq = host->pwrseq; diff --git a/drivers/mmc/core/pwrseq.h b/drivers/mmc/core/pwrseq.h index 39c911aa6ebb..819386f4ec61 100644 --- a/drivers/mmc/core/pwrseq.h +++ b/drivers/mmc/core/pwrseq.h @@ -18,6 +18,7 @@ struct mmc_pwrseq_ops { void (*pre_power_on)(struct mmc_host *host); void (*post_power_on)(struct mmc_host *host); void (*power_off)(struct mmc_host *host); + void (*reset)(struct mmc_host *host); }; struct mmc_pwrseq { @@ -36,6 +37,7 @@ int mmc_pwrseq_alloc(struct mmc_host *host); void mmc_pwrseq_pre_power_on(struct mmc_host *host); void mmc_pwrseq_post_power_on(struct mmc_host *host); void mmc_pwrseq_power_off(struct mmc_host *host); +void mmc_pwrseq_reset(struct mmc_host *host); void mmc_pwrseq_free(struct mmc_host *host); #else @@ -49,6 +51,7 @@ static inline int mmc_pwrseq_alloc(struct mmc_host *host) { return 0; } static inline void mmc_pwrseq_pre_power_on(struct mmc_host *host) {} static inline void mmc_pwrseq_post_power_on(struct mmc_host *host) {} static inline void mmc_pwrseq_power_off(struct mmc_host *host) {} +static inline void mmc_pwrseq_reset(struct mmc_host *host) {} static inline void mmc_pwrseq_free(struct mmc_host *host) {} #endif diff --git a/drivers/mmc/core/pwrseq_emmc.c b/drivers/mmc/core/pwrseq_emmc.c index adc9c0c614fb..efb8a7965dd4 100644 --- a/drivers/mmc/core/pwrseq_emmc.c +++ b/drivers/mmc/core/pwrseq_emmc.c @@ -56,7 +56,7 @@ static int mmc_pwrseq_emmc_reset_nb(struct notifier_block *this, } static const struct mmc_pwrseq_ops mmc_pwrseq_emmc_ops = { - .post_power_on = mmc_pwrseq_emmc_reset, + .reset = mmc_pwrseq_emmc_reset, }; static int mmc_pwrseq_emmc_probe(struct platform_device *pdev) diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index b659a28c8018..affa7370ba82 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -40,35 +40,6 @@ static int mmc_prep_request(struct request_queue *q, struct request *req) return BLKPREP_OK; } -struct mmc_queue_req *mmc_queue_req_find(struct mmc_queue *mq, - struct request *req) -{ - struct mmc_queue_req *mqrq; - int i = ffz(mq->qslots); - - if (i >= mq->qdepth) - return NULL; - - mqrq = &mq->mqrq[i]; - WARN_ON(mqrq->req || mq->qcnt >= mq->qdepth || - test_bit(mqrq->task_id, &mq->qslots)); - mqrq->req = req; - mq->qcnt += 1; - __set_bit(mqrq->task_id, &mq->qslots); - - return mqrq; -} - -void mmc_queue_req_free(struct mmc_queue *mq, - struct mmc_queue_req *mqrq) -{ - WARN_ON(!mqrq->req || mq->qcnt < 1 || - !test_bit(mqrq->task_id, &mq->qslots)); - mqrq->req = NULL; - mq->qcnt -= 1; - __clear_bit(mqrq->task_id, &mq->qslots); -} - static int mmc_queue_thread(void *d) { struct mmc_queue *mq = d; @@ -149,11 +120,11 @@ static void mmc_request_fn(struct request_queue *q) wake_up_process(mq->thread); } -static struct scatterlist *mmc_alloc_sg(int sg_len) +static struct scatterlist *mmc_alloc_sg(int sg_len, gfp_t gfp) { struct scatterlist *sg; - sg = kmalloc_array(sg_len, sizeof(*sg), GFP_KERNEL); + sg = kmalloc_array(sg_len, sizeof(*sg), gfp); if (sg) sg_init_table(sg, sg_len); @@ -179,86 +150,11 @@ static void mmc_queue_setup_discard(struct request_queue *q, queue_flag_set_unlocked(QUEUE_FLAG_SECERASE, q); } -static void mmc_queue_req_free_bufs(struct mmc_queue_req *mqrq) -{ - kfree(mqrq->bounce_sg); - mqrq->bounce_sg = NULL; - - kfree(mqrq->sg); - mqrq->sg = NULL; - - kfree(mqrq->bounce_buf); - mqrq->bounce_buf = NULL; -} - -static void mmc_queue_reqs_free_bufs(struct mmc_queue_req *mqrq, int qdepth) -{ - int i; - - for (i = 0; i < qdepth; i++) - mmc_queue_req_free_bufs(&mqrq[i]); -} - -static void mmc_queue_free_mqrqs(struct mmc_queue_req *mqrq, int qdepth) -{ - mmc_queue_reqs_free_bufs(mqrq, qdepth); - kfree(mqrq); -} - -static struct mmc_queue_req *mmc_queue_alloc_mqrqs(int qdepth) -{ - struct mmc_queue_req *mqrq; - int i; - - mqrq = kcalloc(qdepth, sizeof(*mqrq), GFP_KERNEL); - if (mqrq) { - for (i = 0; i < qdepth; i++) - mqrq[i].task_id = i; - } - - return mqrq; -} - -#ifdef CONFIG_MMC_BLOCK_BOUNCE -static int mmc_queue_alloc_bounce_bufs(struct mmc_queue_req *mqrq, int qdepth, - unsigned int bouncesz) -{ - int i; - - for (i = 0; i < qdepth; i++) { - mqrq[i].bounce_buf = kmalloc(bouncesz, GFP_KERNEL); - if (!mqrq[i].bounce_buf) - return -ENOMEM; - - mqrq[i].sg = mmc_alloc_sg(1); - if (!mqrq[i].sg) - return -ENOMEM; - - mqrq[i].bounce_sg = mmc_alloc_sg(bouncesz / 512); - if (!mqrq[i].bounce_sg) - return -ENOMEM; - } - - return 0; -} - -static bool mmc_queue_alloc_bounce(struct mmc_queue_req *mqrq, int qdepth, - unsigned int bouncesz) -{ - int ret; - - ret = mmc_queue_alloc_bounce_bufs(mqrq, qdepth, bouncesz); - if (ret) - mmc_queue_reqs_free_bufs(mqrq, qdepth); - - return !ret; -} - static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host) { unsigned int bouncesz = MMC_QUEUE_BOUNCESZ; - if (host->max_segs != 1) + if (host->max_segs != 1 || (host->caps & MMC_CAP_NO_BOUNCE_BUFF)) return 0; if (bouncesz > host->max_req_size) @@ -273,84 +169,58 @@ static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host) return bouncesz; } -#else -static inline bool mmc_queue_alloc_bounce(struct mmc_queue_req *mqrq, - int qdepth, unsigned int bouncesz) -{ - return false; -} -static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host) -{ - return 0; -} -#endif - -static int mmc_queue_alloc_sgs(struct mmc_queue_req *mqrq, int qdepth, - int max_segs) +/** + * mmc_init_request() - initialize the MMC-specific per-request data + * @q: the request queue + * @req: the request + * @gfp: memory allocation policy + */ +static int mmc_init_request(struct request_queue *q, struct request *req, + gfp_t gfp) { - int i; + struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req); + struct mmc_queue *mq = q->queuedata; + struct mmc_card *card = mq->card; + struct mmc_host *host = card->host; - for (i = 0; i < qdepth; i++) { - mqrq[i].sg = mmc_alloc_sg(max_segs); - if (!mqrq[i].sg) + if (card->bouncesz) { + mq_rq->bounce_buf = kmalloc(card->bouncesz, gfp); + if (!mq_rq->bounce_buf) + return -ENOMEM; + if (card->bouncesz > 512) { + mq_rq->sg = mmc_alloc_sg(1, gfp); + if (!mq_rq->sg) + return -ENOMEM; + mq_rq->bounce_sg = mmc_alloc_sg(card->bouncesz / 512, + gfp); + if (!mq_rq->bounce_sg) + return -ENOMEM; + } + } else { + mq_rq->bounce_buf = NULL; + mq_rq->bounce_sg = NULL; + mq_rq->sg = mmc_alloc_sg(host->max_segs, gfp); + if (!mq_rq->sg) return -ENOMEM; } return 0; } -void mmc_queue_free_shared_queue(struct mmc_card *card) +static void mmc_exit_request(struct request_queue *q, struct request *req) { - if (card->mqrq) { - mmc_queue_free_mqrqs(card->mqrq, card->qdepth); - card->mqrq = NULL; - } -} - -static int __mmc_queue_alloc_shared_queue(struct mmc_card *card, int qdepth) -{ - struct mmc_host *host = card->host; - struct mmc_queue_req *mqrq; - unsigned int bouncesz; - int ret = 0; - - if (card->mqrq) - return -EINVAL; + struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req); - mqrq = mmc_queue_alloc_mqrqs(qdepth); - if (!mqrq) - return -ENOMEM; - - card->mqrq = mqrq; - card->qdepth = qdepth; - - bouncesz = mmc_queue_calc_bouncesz(host); - - if (bouncesz && !mmc_queue_alloc_bounce(mqrq, qdepth, bouncesz)) { - bouncesz = 0; - pr_warn("%s: unable to allocate bounce buffers\n", - mmc_card_name(card)); - } + /* It is OK to kfree(NULL) so this will be smooth */ + kfree(mq_rq->bounce_sg); + mq_rq->bounce_sg = NULL; - card->bouncesz = bouncesz; + kfree(mq_rq->bounce_buf); + mq_rq->bounce_buf = NULL; - if (!bouncesz) { - ret = mmc_queue_alloc_sgs(mqrq, qdepth, host->max_segs); - if (ret) - goto out_err; - } - - return ret; - -out_err: - mmc_queue_free_shared_queue(card); - return ret; -} - -int mmc_queue_alloc_shared_queue(struct mmc_card *card) -{ - return __mmc_queue_alloc_shared_queue(card, 2); + kfree(mq_rq->sg); + mq_rq->sg = NULL; } /** @@ -373,13 +243,21 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT; mq->card = card; - mq->queue = blk_init_queue(mmc_request_fn, lock); + mq->queue = blk_alloc_queue(GFP_KERNEL); if (!mq->queue) return -ENOMEM; - - mq->mqrq = card->mqrq; - mq->qdepth = card->qdepth; + mq->queue->queue_lock = lock; + mq->queue->request_fn = mmc_request_fn; + mq->queue->init_rq_fn = mmc_init_request; + mq->queue->exit_rq_fn = mmc_exit_request; + mq->queue->cmd_size = sizeof(struct mmc_queue_req); mq->queue->queuedata = mq; + mq->qcnt = 0; + ret = blk_init_allocated_queue(mq->queue); + if (ret) { + blk_cleanup_queue(mq->queue); + return ret; + } blk_queue_prep_rq(mq->queue, mmc_prep_request); queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue); @@ -387,6 +265,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, if (mmc_can_erase(card)) mmc_queue_setup_discard(mq->queue, card); + card->bouncesz = mmc_queue_calc_bouncesz(host); if (card->bouncesz) { blk_queue_max_hw_sectors(mq->queue, card->bouncesz / 512); blk_queue_max_segments(mq->queue, card->bouncesz / 512); @@ -412,7 +291,6 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, return 0; cleanup_queue: - mq->mqrq = NULL; blk_cleanup_queue(mq->queue); return ret; } @@ -434,7 +312,6 @@ void mmc_cleanup_queue(struct mmc_queue *mq) blk_start_queue(q); spin_unlock_irqrestore(q->queue_lock, flags); - mq->mqrq = NULL; mq->card = NULL; } EXPORT_SYMBOL(mmc_cleanup_queue); @@ -491,12 +368,13 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq, struct mmc_queue_req *mqrq) unsigned int sg_len; size_t buflen; struct scatterlist *sg; + struct request *req = mmc_queue_req_to_req(mqrq); int i; if (!mqrq->bounce_buf) - return blk_rq_map_sg(mq->queue, mqrq->req, mqrq->sg); + return blk_rq_map_sg(mq->queue, req, mqrq->sg); - sg_len = blk_rq_map_sg(mq->queue, mqrq->req, mqrq->bounce_sg); + sg_len = blk_rq_map_sg(mq->queue, req, mqrq->bounce_sg); mqrq->bounce_sg_len = sg_len; @@ -518,7 +396,7 @@ void mmc_queue_bounce_pre(struct mmc_queue_req *mqrq) if (!mqrq->bounce_buf) return; - if (rq_data_dir(mqrq->req) != WRITE) + if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != WRITE) return; sg_copy_to_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len, @@ -534,7 +412,7 @@ void mmc_queue_bounce_post(struct mmc_queue_req *mqrq) if (!mqrq->bounce_buf) return; - if (rq_data_dir(mqrq->req) != READ) + if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != READ) return; sg_copy_from_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len, diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h index 871796c3f406..361b46408e0f 100644 --- a/drivers/mmc/core/queue.h +++ b/drivers/mmc/core/queue.h @@ -3,19 +3,25 @@ #include <linux/types.h> #include <linux/blkdev.h> +#include <linux/blk-mq.h> #include <linux/mmc/core.h> #include <linux/mmc/host.h> -static inline bool mmc_req_is_special(struct request *req) +static inline struct mmc_queue_req *req_to_mmc_queue_req(struct request *rq) { - return req && - (req_op(req) == REQ_OP_FLUSH || - req_op(req) == REQ_OP_DISCARD || - req_op(req) == REQ_OP_SECURE_ERASE); + return blk_mq_rq_to_pdu(rq); +} + +struct mmc_queue_req; + +static inline struct request *mmc_queue_req_to_req(struct mmc_queue_req *mqr) +{ + return blk_mq_rq_from_pdu(mqr); } struct task_struct; struct mmc_blk_data; +struct mmc_blk_ioc_data; struct mmc_blk_request { struct mmc_request mrq; @@ -26,15 +32,27 @@ struct mmc_blk_request { int retune_retry_done; }; +/** + * enum mmc_drv_op - enumerates the operations in the mmc_queue_req + * @MMC_DRV_OP_IOCTL: ioctl operation + * @MMC_DRV_OP_BOOT_WP: write protect boot partitions + */ +enum mmc_drv_op { + MMC_DRV_OP_IOCTL, + MMC_DRV_OP_BOOT_WP, +}; + struct mmc_queue_req { - struct request *req; struct mmc_blk_request brq; struct scatterlist *sg; char *bounce_buf; struct scatterlist *bounce_sg; unsigned int bounce_sg_len; struct mmc_async_req areq; - int task_id; + enum mmc_drv_op drv_op; + int drv_op_result; + struct mmc_blk_ioc_data **idata; + unsigned int ioc_count; }; struct mmc_queue { @@ -45,14 +63,15 @@ struct mmc_queue { bool asleep; struct mmc_blk_data *blkdata; struct request_queue *queue; - struct mmc_queue_req *mqrq; - int qdepth; + /* + * FIXME: this counter is not a very reliable way of keeping + * track of how many requests that are ongoing. Switch to just + * letting the block core keep track of requests and per-request + * associated mmc_queue_req data. + */ int qcnt; - unsigned long qslots; }; -extern int mmc_queue_alloc_shared_queue(struct mmc_card *card); -extern void mmc_queue_free_shared_queue(struct mmc_card *card); extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *, const char *); extern void mmc_cleanup_queue(struct mmc_queue *); @@ -66,8 +85,4 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *); extern int mmc_access_rpmb(struct mmc_queue *); -extern struct mmc_queue_req *mmc_queue_req_find(struct mmc_queue *, - struct request *); -extern void mmc_queue_req_free(struct mmc_queue *, struct mmc_queue_req *); - #endif diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index d109634fbfce..a1b0aa14d5e3 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -294,12 +294,8 @@ static int mmc_read_switch(struct mmc_card *card) err = -EIO; status = kmalloc(64, GFP_KERNEL); - if (!status) { - pr_err("%s: could not allocate a buffer for " - "switch capabilities.\n", - mmc_hostname(card->host)); + if (!status) return -ENOMEM; - } /* * Find out the card's support bits with a mode 0 operation. @@ -359,11 +355,8 @@ int mmc_sd_switch_hs(struct mmc_card *card) return 0; status = kmalloc(64, GFP_KERNEL); - if (!status) { - pr_err("%s: could not allocate a buffer for " - "switch capabilities.\n", mmc_hostname(card->host)); + if (!status) return -ENOMEM; - } err = mmc_sd_switch(card, 1, 0, 1, status); if (err) @@ -596,11 +589,8 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card) return 0; status = kmalloc(64, GFP_KERNEL); - if (!status) { - pr_err("%s: could not allocate a buffer for " - "switch capabilities.\n", mmc_hostname(card->host)); + if (!status) return -ENOMEM; - } /* Set 4-bit bus width */ if ((card->host->caps & MMC_CAP_4_BIT_DATA) && @@ -798,11 +788,7 @@ try_again: } } - if (mmc_host_is_spi(host)) - err = mmc_send_cid(host, cid); - else - err = mmc_all_send_cid(host, cid); - + err = mmc_send_cid(host, cid); return err; } diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index fae732c870a9..cc43687ca241 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -1104,6 +1104,12 @@ int mmc_attach_sdio(struct mmc_host *host) */ if (host->caps & MMC_CAP_POWER_OFF_CARD) { /* + * Do not allow runtime suspend until after SDIO function + * devices are added. + */ + pm_runtime_get_noresume(&card->dev); + + /* * Let runtime PM core know our card is active */ err = pm_runtime_set_active(&card->dev); @@ -1155,19 +1161,23 @@ int mmc_attach_sdio(struct mmc_host *host) goto remove_added; } + if (host->caps & MMC_CAP_POWER_OFF_CARD) + pm_runtime_put(&card->dev); + mmc_claim_host(host); return 0; -remove_added: - /* Remove without lock if the device has been added. */ - mmc_sdio_remove(host); - mmc_claim_host(host); remove: - /* And with lock if it hasn't been added. */ mmc_release_host(host); - if (host->card) - mmc_sdio_remove(host); +remove_added: + /* + * The devices are being deleted so it is not necessary to disable + * runtime PM. Similarly we also don't pm_runtime_put() the SDIO card + * because it needs to be active to remove any function devices that + * were probed, and after that it gets deleted. + */ + mmc_sdio_remove(host); mmc_claim_host(host); err: mmc_detach_bus(host); diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c index 6d4b72080d51..c771843e4c15 100644 --- a/drivers/mmc/core/sdio_irq.c +++ b/drivers/mmc/core/sdio_irq.c @@ -95,12 +95,30 @@ static int process_sdio_pending_irqs(struct mmc_host *host) void sdio_run_irqs(struct mmc_host *host) { mmc_claim_host(host); - host->sdio_irq_pending = true; - process_sdio_pending_irqs(host); + if (host->sdio_irqs) { + host->sdio_irq_pending = true; + process_sdio_pending_irqs(host); + if (host->ops->ack_sdio_irq) + host->ops->ack_sdio_irq(host); + } mmc_release_host(host); } EXPORT_SYMBOL_GPL(sdio_run_irqs); +void sdio_irq_work(struct work_struct *work) +{ + struct mmc_host *host = + container_of(work, struct mmc_host, sdio_irq_work.work); + + sdio_run_irqs(host); +} + +void sdio_signal_irq(struct mmc_host *host) +{ + queue_delayed_work(system_wq, &host->sdio_irq_work, 0); +} +EXPORT_SYMBOL_GPL(sdio_signal_irq); + static int sdio_irq_thread(void *_host) { struct mmc_host *host = _host; diff --git a/drivers/mmc/core/sdio_ops.h b/drivers/mmc/core/sdio_ops.h index ee35cb4d170e..96945cafbf0b 100644 --- a/drivers/mmc/core/sdio_ops.h +++ b/drivers/mmc/core/sdio_ops.h @@ -17,6 +17,7 @@ struct mmc_host; struct mmc_card; +struct work_struct; int mmc_send_io_op_cond(struct mmc_host *host, u32 ocr, u32 *rocr); int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn, @@ -25,6 +26,7 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz); int sdio_reset(struct mmc_host *host); unsigned int mmc_align_data_size(struct mmc_card *card, unsigned int sz); +void sdio_irq_work(struct work_struct *work); static inline bool sdio_is_io_busy(u32 opcode, u32 arg) { diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index a8450a8701e4..863f1dbbfc1b 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -151,6 +151,8 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host) if (irq < 0) host->caps |= MMC_CAP_NEEDS_POLL; + else if ((host->caps & MMC_CAP_CD_WAKE) && !enable_irq_wake(irq)) + host->slot.cd_wake_enabled = true; } EXPORT_SYMBOL(mmc_gpiod_request_cd_irq); diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index 2db84dd664d7..5755b69f2f72 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -408,11 +408,11 @@ config MMC_AU1X config MMC_ATMELMCI tristate "Atmel SD/MMC Driver (Multimedia Card Interface)" - depends on AVR32 || ARCH_AT91 + depends on ARCH_AT91 help - This selects the Atmel Multimedia Card Interface driver. If - you have an AT32 (AVR32) or AT91 platform with a Multimedia - Card slot, say Y or M here. + This selects the Atmel Multimedia Card Interface driver. + If you have an AT91 platform with a Multimedia Card slot, + say Y or M here. If unsure, say N. @@ -571,13 +571,13 @@ config MMC_TMIO T7L66XB and also HTC ASIC3 config MMC_SDHI - tristate "SH-Mobile SDHI SD/SDIO controller support" + tristate "Renesas SDHI SD/SDIO controller support" depends on SUPERH || ARM || ARM64 depends on SUPERH || ARCH_RENESAS || COMPILE_TEST select MMC_TMIO_CORE help This provides support for the SDHI SD/SDIO controller found in - SuperH and ARM SH-Mobile SoCs + Renesas SuperH, ARM and ARM64 based SoCs config MMC_CB710 tristate "ENE CB710 MMC/SD Interface support" diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index 926347c2eeb4..4d4547116311 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -36,9 +36,7 @@ obj-$(CONFIG_MMC_S3C) += s3cmci.o obj-$(CONFIG_MMC_SDRICOH_CS) += sdricoh_cs.o obj-$(CONFIG_MMC_TMIO) += tmio_mmc.o obj-$(CONFIG_MMC_TMIO_CORE) += tmio_mmc_core.o -tmio_mmc_core-y := tmio_mmc_pio.o -tmio_mmc_core-$(subst m,y,$(CONFIG_MMC_SDHI)) += tmio_mmc_dma.o -obj-$(CONFIG_MMC_SDHI) += sh_mobile_sdhi.o +obj-$(CONFIG_MMC_SDHI) += renesas_sdhi_core.o renesas_sdhi_sys_dmac.o obj-$(CONFIG_MMC_CB710) += cb710-mmc.o obj-$(CONFIG_MMC_VIA_SDMMC) += via-sdmmc.o obj-$(CONFIG_SDH_BFIN) += bfin_sdh.o diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 388e4a3f13e6..97de2d32ba84 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -44,7 +44,7 @@ #include <asm/unaligned.h> /* - * Superset of MCI IP registers integrated in Atmel AVR32 and AT91 Processors + * Superset of MCI IP registers integrated in Atmel AT91 Processor * Registers and bitfields marked with [2] are only available in MCI2 */ @@ -172,13 +172,6 @@ #define atmci_writel(port, reg, value) \ __raw_writel((value), (port)->regs + reg) -/* On AVR chips the Peripheral DMA Controller is not connected to MCI. */ -#ifdef CONFIG_AVR32 -# define ATMCI_PDC_CONNECTED 0 -#else -# define ATMCI_PDC_CONNECTED 1 -#endif - #define AUTOSUSPEND_DELAY 50 #define ATMCI_DATA_ERROR_FLAGS (ATMCI_DCRCE | ATMCI_DTOE | ATMCI_OVRE | ATMCI_UNRE) @@ -667,10 +660,8 @@ atmci_of_init(struct platform_device *pdev) } pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) { - dev_err(&pdev->dev, "could not allocate memory for pdata\n"); + if (!pdata) return ERR_PTR(-ENOMEM); - } for_each_child_of_node(np, cnp) { if (of_property_read_u32(cnp, "reg", &slot_id)) { @@ -1549,21 +1540,8 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd); break; default: - /* - * TODO: None of the currently available AVR32-based - * boards allow MMC power to be turned off. Implement - * power control when this can be tested properly. - * - * We also need to hook this into the clock management - * somehow so that newly inserted cards aren't - * subjected to a fast clock before we have a chance - * to figure out what the maximum rate is. Currently, - * there's no way to avoid this, and there never will - * be for boards that don't support power control. - */ break; } - } static int atmci_get_ro(struct mmc_host *mmc) @@ -2464,7 +2442,7 @@ static void atmci_get_cap(struct atmel_mci *host) "version: 0x%x\n", version); host->caps.has_dma_conf_reg = 0; - host->caps.has_pdc = ATMCI_PDC_CONNECTED; + host->caps.has_pdc = 1; host->caps.has_cfg_reg = 0; host->caps.has_cstor_reg = 0; host->caps.has_highspeed = 0; diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index 1f343a477b3d..abba9a2a78b8 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -1172,7 +1172,10 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq) if (mrq->data && !is_power_of_2(mrq->data->blksz)) { dev_err(dev, "unsupported block size (%d bytes)\n", mrq->data->blksz); - mrq->cmd->error = -EINVAL; + + if (mrq->cmd) + mrq->cmd->error = -EINVAL; + mmc_request_done(mmc, mrq); return; } @@ -1194,7 +1197,10 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq) readl(host->ioaddr + SDCMD) & SDCMD_CMD_MASK, edm); bcm2835_dumpregs(host); - mrq->cmd->error = -EILSEQ; + + if (mrq->cmd) + mrq->cmd->error = -EILSEQ; + bcm2835_finish_request(host); mutex_unlock(&host->mutex); return; @@ -1207,7 +1213,7 @@ static void bcm2835_request(struct mmc_host *mmc, struct mmc_request *mrq) if (!host->use_busy) bcm2835_finish_command(host); } - } else if (bcm2835_send_command(host, mrq->cmd)) { + } else if (mrq->cmd && bcm2835_send_command(host, mrq->cmd)) { if (host->data && host->dma_desc) { /* DMA transfer starts now, PIO starts after irq */ bcm2835_start_dma(host); diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c index b8aaf0fdb77c..3686d77c717b 100644 --- a/drivers/mmc/host/cavium.c +++ b/drivers/mmc/host/cavium.c @@ -1035,10 +1035,12 @@ int cvm_mmc_of_slot_probe(struct device *dev, struct cvm_mmc_host *host) * We only have a 3.3v supply, we cannot support any * of the UHS modes. We do support the high speed DDR * modes up to 52MHz. + * + * Disable bounce buffers for max_segs = 1 */ mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED | MMC_CAP_ERASE | MMC_CAP_CMD23 | MMC_CAP_POWER_OFF_CARD | - MMC_CAP_3_3V_DDR; + MMC_CAP_3_3V_DDR | MMC_CAP_NO_BOUNCE_BUFF; if (host->use_sg) mmc->max_segs = 16; diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 25691cca1881..35026795be28 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -157,8 +157,8 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing) * HOLD register should be bypassed in case there is no phase shift * applied on CMD/DATA that is sent to the card. */ - if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->cur_slot) - set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags); + if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->slot) + set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags); } #ifdef CONFIG_PM diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c index 372fb6e948c1..a3f1c2b30145 100644 --- a/drivers/mmc/host/dw_mmc-rockchip.c +++ b/drivers/mmc/host/dw_mmc-rockchip.c @@ -25,6 +25,7 @@ struct dw_mci_rockchip_priv_data { struct clk *drv_clk; struct clk *sample_clk; int default_sample_phase; + int num_phases; }; static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios) @@ -133,8 +134,8 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios) } } -#define NUM_PHASES 360 -#define TUNING_ITERATION_TO_PHASE(i) (DIV_ROUND_UP((i) * 360, NUM_PHASES)) +#define TUNING_ITERATION_TO_PHASE(i, num_phases) \ + (DIV_ROUND_UP((i) * 360, num_phases)) static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) { @@ -159,13 +160,15 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) return -EIO; } - ranges = kmalloc_array(NUM_PHASES / 2 + 1, sizeof(*ranges), GFP_KERNEL); + ranges = kmalloc_array(priv->num_phases / 2 + 1, + sizeof(*ranges), GFP_KERNEL); if (!ranges) return -ENOMEM; /* Try each phase and extract good ranges */ - for (i = 0; i < NUM_PHASES; ) { - clk_set_phase(priv->sample_clk, TUNING_ITERATION_TO_PHASE(i)); + for (i = 0; i < priv->num_phases; ) { + clk_set_phase(priv->sample_clk, + TUNING_ITERATION_TO_PHASE(i, priv->num_phases)); v = !mmc_send_tuning(mmc, opcode, NULL); @@ -179,7 +182,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) if (v) { ranges[range_count-1].end = i; i++; - } else if (i == NUM_PHASES - 1) { + } else if (i == priv->num_phases - 1) { /* No extra skipping rules if we're at the end */ i++; } else { @@ -188,11 +191,11 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) * one since testing bad phases is slow. Skip * 20 degrees. */ - i += DIV_ROUND_UP(20 * NUM_PHASES, 360); + i += DIV_ROUND_UP(20 * priv->num_phases, 360); /* Always test the last one */ - if (i >= NUM_PHASES) - i = NUM_PHASES - 1; + if (i >= priv->num_phases) + i = priv->num_phases - 1; } prev_v = v; @@ -210,7 +213,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) range_count--; } - if (ranges[0].start == 0 && ranges[0].end == NUM_PHASES - 1) { + if (ranges[0].start == 0 && ranges[0].end == priv->num_phases - 1) { clk_set_phase(priv->sample_clk, priv->default_sample_phase); dev_info(host->dev, "All phases work, using default phase %d.", priv->default_sample_phase); @@ -222,7 +225,7 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) int len = (ranges[i].end - ranges[i].start + 1); if (len < 0) - len += NUM_PHASES; + len += priv->num_phases; if (longest_range_len < len) { longest_range_len = len; @@ -230,25 +233,30 @@ static int dw_mci_rk3288_execute_tuning(struct dw_mci_slot *slot, u32 opcode) } dev_dbg(host->dev, "Good phase range %d-%d (%d len)\n", - TUNING_ITERATION_TO_PHASE(ranges[i].start), - TUNING_ITERATION_TO_PHASE(ranges[i].end), + TUNING_ITERATION_TO_PHASE(ranges[i].start, + priv->num_phases), + TUNING_ITERATION_TO_PHASE(ranges[i].end, + priv->num_phases), len ); } dev_dbg(host->dev, "Best phase range %d-%d (%d len)\n", - TUNING_ITERATION_TO_PHASE(ranges[longest_range].start), - TUNING_ITERATION_TO_PHASE(ranges[longest_range].end), + TUNING_ITERATION_TO_PHASE(ranges[longest_range].start, + priv->num_phases), + TUNING_ITERATION_TO_PHASE(ranges[longest_range].end, + priv->num_phases), longest_range_len ); middle_phase = ranges[longest_range].start + longest_range_len / 2; - middle_phase %= NUM_PHASES; + middle_phase %= priv->num_phases; dev_info(host->dev, "Successfully tuned phase to %d\n", - TUNING_ITERATION_TO_PHASE(middle_phase)); + TUNING_ITERATION_TO_PHASE(middle_phase, priv->num_phases)); clk_set_phase(priv->sample_clk, - TUNING_ITERATION_TO_PHASE(middle_phase)); + TUNING_ITERATION_TO_PHASE(middle_phase, + priv->num_phases)); free: kfree(ranges); @@ -264,6 +272,10 @@ static int dw_mci_rk3288_parse_dt(struct dw_mci *host) if (!priv) return -ENOMEM; + if (of_property_read_u32(np, "rockchip,desired-num-phases", + &priv->num_phases)) + priv->num_phases = 360; + if (of_property_read_u32(np, "rockchip,default-sample-phase", &priv->default_sample_phase)) priv->default_sample_phase = 0; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index e45129f48174..a9dfb26972f2 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -392,7 +392,7 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd) cmdr = stop->opcode | SDMMC_CMD_STOP | SDMMC_CMD_RESP_CRC | SDMMC_CMD_RESP_EXP; - if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags)) + if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags)) cmdr |= SDMMC_CMD_USE_HOLD_REG; return cmdr; @@ -480,7 +480,7 @@ static void dw_mci_dmac_complete_dma(void *arg) if ((host->use_dma == TRANS_MODE_EDMAC) && data && (data->flags & MMC_DATA_READ)) /* Invalidate cache after read */ - dma_sync_sg_for_cpu(mmc_dev(host->cur_slot->mmc), + dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc), data->sg, data->sg_len, DMA_FROM_DEVICE); @@ -820,7 +820,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host, /* Flush cache before write */ if (host->data->flags & MMC_DATA_WRITE) - dma_sync_sg_for_device(mmc_dev(host->cur_slot->mmc), sgl, + dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl, sg_elems, DMA_TO_DEVICE); dma_async_issue_pending(host->dms->ch); @@ -1282,7 +1282,6 @@ static void __dw_mci_start_request(struct dw_mci *host, mrq = slot->mrq; - host->cur_slot = slot; host->mrq = mrq; host->pending_events = 0; @@ -1621,16 +1620,10 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card) if (card->type == MMC_TYPE_SDIO || card->type == MMC_TYPE_SD_COMBO) { - if (!test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) { - pm_runtime_get_noresume(mmc->parent); - set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); - } + set_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); clk_en_a = clk_en_a_old & ~clken_low_pwr; } else { - if (test_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags)) { - pm_runtime_put_noidle(mmc->parent); - clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); - } + clear_bit(DW_MMC_CARD_NO_LOW_PWR, &slot->flags); clk_en_a = clk_en_a_old | clken_low_pwr; } @@ -1642,9 +1635,8 @@ static void dw_mci_init_card(struct mmc_host *mmc, struct mmc_card *card) } } -static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb) +static void __dw_mci_enable_sdio_irq(struct dw_mci_slot *slot, int enb) { - struct dw_mci_slot *slot = mmc_priv(mmc); struct dw_mci *host = slot->host; unsigned long irqflags; u32 int_mask; @@ -1662,6 +1654,27 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb) spin_unlock_irqrestore(&host->irq_lock, irqflags); } +static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb) +{ + struct dw_mci_slot *slot = mmc_priv(mmc); + struct dw_mci *host = slot->host; + + __dw_mci_enable_sdio_irq(slot, enb); + + /* Avoid runtime suspending the device when SDIO IRQ is enabled */ + if (enb) + pm_runtime_get_noresume(host->dev); + else + pm_runtime_put_noidle(host->dev); +} + +static void dw_mci_ack_sdio_irq(struct mmc_host *mmc) +{ + struct dw_mci_slot *slot = mmc_priv(mmc); + + __dw_mci_enable_sdio_irq(slot, 1); +} + static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode) { struct dw_mci_slot *slot = mmc_priv(mmc); @@ -1749,7 +1762,7 @@ static bool dw_mci_reset(struct dw_mci *host) ciu_out: /* After a CTRL reset we need to have CIU set clock registers */ - mci_send_cmd(host->cur_slot, SDMMC_CMD_UPD_CLK, 0); + mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0); return ret; } @@ -1763,6 +1776,7 @@ static const struct mmc_host_ops dw_mci_ops = { .get_cd = dw_mci_get_cd, .hw_reset = dw_mci_hw_reset, .enable_sdio_irq = dw_mci_enable_sdio_irq, + .ack_sdio_irq = dw_mci_ack_sdio_irq, .execute_tuning = dw_mci_execute_tuning, .card_busy = dw_mci_card_busy, .start_signal_voltage_switch = dw_mci_switch_voltage, @@ -1775,11 +1789,11 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq) __acquires(&host->lock) { struct dw_mci_slot *slot; - struct mmc_host *prev_mmc = host->cur_slot->mmc; + struct mmc_host *prev_mmc = host->slot->mmc; WARN_ON(host->cmd || host->data); - host->cur_slot->mrq = NULL; + host->slot->mrq = NULL; host->mrq = NULL; if (!list_empty(&host->queue)) { slot = list_entry(host->queue.next, @@ -1929,7 +1943,7 @@ static void dw_mci_tasklet_func(unsigned long priv) err = dw_mci_command_complete(host, cmd); if (cmd == mrq->sbc && !err) { prev_state = state = STATE_SENDING_CMD; - __dw_mci_start_request(host, host->cur_slot, + __dw_mci_start_request(host, host->slot, mrq->cmd); goto unlock; } @@ -2548,26 +2562,19 @@ static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status) static void dw_mci_handle_cd(struct dw_mci *host) { - int i; + struct dw_mci_slot *slot = host->slot; - for (i = 0; i < host->num_slots; i++) { - struct dw_mci_slot *slot = host->slot[i]; - - if (!slot) - continue; - - if (slot->mmc->ops->card_event) - slot->mmc->ops->card_event(slot->mmc); - mmc_detect_change(slot->mmc, - msecs_to_jiffies(host->pdata->detect_delay_ms)); - } + if (slot->mmc->ops->card_event) + slot->mmc->ops->card_event(slot->mmc); + mmc_detect_change(slot->mmc, + msecs_to_jiffies(host->pdata->detect_delay_ms)); } static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) { struct dw_mci *host = dev_id; u32 pending; - int i; + struct dw_mci_slot *slot = host->slot; pending = mci_readl(host, MINTSTS); /* read-only mask reg */ @@ -2644,18 +2651,11 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) dw_mci_handle_cd(host); } - /* Handle SDIO Interrupts */ - for (i = 0; i < host->num_slots; i++) { - struct dw_mci_slot *slot = host->slot[i]; - - if (!slot) - continue; - - if (pending & SDMMC_INT_SDIO(slot->sdio_id)) { - mci_writel(host, RINTSTS, - SDMMC_INT_SDIO(slot->sdio_id)); - mmc_signal_sdio_irq(slot->mmc); - } + if (pending & SDMMC_INT_SDIO(slot->sdio_id)) { + mci_writel(host, RINTSTS, + SDMMC_INT_SDIO(slot->sdio_id)); + __dw_mci_enable_sdio_irq(slot, 0); + sdio_signal_irq(slot->mmc); } } @@ -2687,7 +2687,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) +static int dw_mci_init_slot(struct dw_mci *host) { struct mmc_host *mmc; struct dw_mci_slot *slot; @@ -2700,15 +2700,15 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) return -ENOMEM; slot = mmc_priv(mmc); - slot->id = id; - slot->sdio_id = host->sdio_id0 + id; + slot->id = 0; + slot->sdio_id = host->sdio_id0 + slot->id; slot->mmc = mmc; slot->host = host; - host->slot[id] = slot; + host->slot = slot; mmc->ops = &dw_mci_ops; - if (of_property_read_u32_array(host->dev->of_node, - "clock-freq-min-max", freq, 2)) { + if (device_property_read_u32_array(host->dev, "clock-freq-min-max", + freq, 2)) { mmc->f_min = DW_MCI_FREQ_MIN; mmc->f_max = DW_MCI_FREQ_MAX; } else { @@ -2755,6 +2755,10 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) if (ret) goto err_host_allocated; + /* Process SDIO IRQs through the sdio_irq_work. */ + if (mmc->caps & MMC_CAP_SDIO_IRQ) + mmc->caps2 |= MMC_CAP2_SDIO_IRQ_NOTHREAD; + /* Useful defaults if platform data is unset. */ if (host->use_dma == TRANS_MODE_IDMAC) { mmc->max_segs = host->ring_size; @@ -2796,11 +2800,11 @@ err_host_allocated: return ret; } -static void dw_mci_cleanup_slot(struct dw_mci_slot *slot, unsigned int id) +static void dw_mci_cleanup_slot(struct dw_mci_slot *slot) { /* Debugfs stuff is cleaned up by mmc core */ mmc_remove_host(slot->mmc); - slot->host->slot[id] = NULL; + slot->host->slot = NULL; mmc_free_host(slot->mmc); } @@ -2808,7 +2812,6 @@ static void dw_mci_init_dma(struct dw_mci *host) { int addr_config; struct device *dev = host->dev; - struct device_node *np = dev->of_node; /* * Check tansfer mode from HCON[17:16] @@ -2869,8 +2872,9 @@ static void dw_mci_init_dma(struct dw_mci *host) dev_info(host->dev, "Using internal DMA controller.\n"); } else { /* TRANS_MODE_EDMAC: check dma bindings again */ - if ((of_property_count_strings(np, "dma-names") < 0) || - (!of_find_property(np, "dmas", NULL))) { + if ((device_property_read_string_array(dev, "dma-names", + NULL, 0) < 0) || + !device_property_present(dev, "dmas")) { goto no_dma; } host->dma_ops = &dw_mci_edmac_ops; @@ -2937,7 +2941,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) { struct dw_mci_board *pdata; struct device *dev = host->dev; - struct device_node *np = dev->of_node; const struct dw_mci_drv_data *drv_data = host->drv_data; int ret; u32 clock_frequency; @@ -2954,20 +2957,22 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) } /* find out number of slots supported */ - of_property_read_u32(np, "num-slots", &pdata->num_slots); + if (device_property_read_u32(dev, "num-slots", &pdata->num_slots)) + dev_info(dev, "'num-slots' was deprecated.\n"); - if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth)) + if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth)) dev_info(dev, "fifo-depth property not found, using value of FIFOTH register as default\n"); - of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms); + device_property_read_u32(dev, "card-detect-delay", + &pdata->detect_delay_ms); - of_property_read_u32(np, "data-addr", &host->data_addr_override); + device_property_read_u32(dev, "data-addr", &host->data_addr_override); - if (of_get_property(np, "fifo-watermark-aligned", NULL)) + if (device_property_present(dev, "fifo-watermark-aligned")) host->wm_aligned = true; - if (!of_property_read_u32(np, "clock-frequency", &clock_frequency)) + if (!device_property_read_u32(dev, "clock-frequency", &clock_frequency)) pdata->bus_hz = clock_frequency; if (drv_data && drv_data->parse_dt) { @@ -2990,29 +2995,21 @@ static void dw_mci_enable_cd(struct dw_mci *host) { unsigned long irqflags; u32 temp; - int i; - struct dw_mci_slot *slot; /* * No need for CD if all slots have a non-error GPIO * as well as broken card detection is found. */ - for (i = 0; i < host->num_slots; i++) { - slot = host->slot[i]; - if (slot->mmc->caps & MMC_CAP_NEEDS_POLL) - return; - - if (mmc_gpio_get_cd(slot->mmc) < 0) - break; - } - if (i == host->num_slots) + if (host->slot->mmc->caps & MMC_CAP_NEEDS_POLL) return; - spin_lock_irqsave(&host->irq_lock, irqflags); - temp = mci_readl(host, INTMASK); - temp |= SDMMC_INT_CD; - mci_writel(host, INTMASK, temp); - spin_unlock_irqrestore(&host->irq_lock, irqflags); + if (mmc_gpio_get_cd(host->slot->mmc) < 0) { + spin_lock_irqsave(&host->irq_lock, irqflags); + temp = mci_readl(host, INTMASK); + temp |= SDMMC_INT_CD; + mci_writel(host, INTMASK, temp); + spin_unlock_irqrestore(&host->irq_lock, irqflags); + } } int dw_mci_probe(struct dw_mci *host) @@ -3020,7 +3017,6 @@ int dw_mci_probe(struct dw_mci *host) const struct dw_mci_drv_data *drv_data = host->drv_data; int width, i, ret = 0; u32 fifo_size; - int init_slots = 0; if (!host->pdata) { host->pdata = dw_mci_parse_dt(host); @@ -3183,19 +3179,6 @@ int dw_mci_probe(struct dw_mci *host) if (ret) goto err_dmaunmap; - if (host->pdata->num_slots) - host->num_slots = host->pdata->num_slots; - else - host->num_slots = 1; - - if (host->num_slots < 1 || - host->num_slots > SDMMC_GET_SLOT_NUM(mci_readl(host, HCON))) { - dev_err(host->dev, - "Platform data must supply correct num_slots.\n"); - ret = -ENODEV; - goto err_clk_ciu; - } - /* * Enable interrupts for command done, data over, data empty, * receive ready and error such as transmit, receive timeout, crc error @@ -3211,20 +3194,9 @@ int dw_mci_probe(struct dw_mci *host) host->irq, width, fifo_size); /* We need at least one slot to succeed */ - for (i = 0; i < host->num_slots; i++) { - ret = dw_mci_init_slot(host, i); - if (ret) - dev_dbg(host->dev, "slot %d init failed\n", i); - else - init_slots++; - } - - if (init_slots) { - dev_info(host->dev, "%d slots initialized\n", init_slots); - } else { - dev_dbg(host->dev, - "attempted to initialize %d slots, but failed on all\n", - host->num_slots); + ret = dw_mci_init_slot(host); + if (ret) { + dev_dbg(host->dev, "slot %d init failed\n", i); goto err_dmaunmap; } @@ -3252,13 +3224,9 @@ EXPORT_SYMBOL(dw_mci_probe); void dw_mci_remove(struct dw_mci *host) { - int i; - - for (i = 0; i < host->num_slots; i++) { - dev_dbg(host->dev, "remove slot %d\n", i); - if (host->slot[i]) - dw_mci_cleanup_slot(host->slot[i], i); - } + dev_dbg(host->dev, "remove slot\n"); + if (host->slot) + dw_mci_cleanup_slot(host->slot); mci_writel(host, RINTSTS, 0xFFFFFFFF); mci_writel(host, INTMASK, 0); /* disable all mmc interrupt first */ @@ -3290,9 +3258,9 @@ int dw_mci_runtime_suspend(struct device *dev) clk_disable_unprepare(host->ciu_clk); - if (host->cur_slot && - (mmc_can_gpio_cd(host->cur_slot->mmc) || - !mmc_card_is_removable(host->cur_slot->mmc))) + if (host->slot && + (mmc_can_gpio_cd(host->slot->mmc) || + !mmc_card_is_removable(host->slot->mmc))) clk_disable_unprepare(host->biu_clk); return 0; @@ -3301,12 +3269,12 @@ EXPORT_SYMBOL(dw_mci_runtime_suspend); int dw_mci_runtime_resume(struct device *dev) { - int i, ret = 0; + int ret = 0; struct dw_mci *host = dev_get_drvdata(dev); - if (host->cur_slot && - (mmc_can_gpio_cd(host->cur_slot->mmc) || - !mmc_card_is_removable(host->cur_slot->mmc))) { + if (host->slot && + (mmc_can_gpio_cd(host->slot->mmc) || + !mmc_card_is_removable(host->slot->mmc))) { ret = clk_prepare_enable(host->biu_clk); if (ret) return ret; @@ -3341,17 +3309,12 @@ int dw_mci_runtime_resume(struct device *dev) DW_MCI_ERROR_FLAGS); mci_writel(host, CTRL, SDMMC_CTRL_INT_ENABLE); - for (i = 0; i < host->num_slots; i++) { - struct dw_mci_slot *slot = host->slot[i]; - if (!slot) - continue; - if (slot->mmc->pm_flags & MMC_PM_KEEP_POWER) - dw_mci_set_ios(slot->mmc, &slot->mmc->ios); + if (host->slot->mmc->pm_flags & MMC_PM_KEEP_POWER) + dw_mci_set_ios(host->slot->mmc, &host->slot->mmc->ios); - /* Force setup bus to guarantee available clock output */ - dw_mci_setup_bus(slot, true); - } + /* Force setup bus to guarantee available clock output */ + dw_mci_setup_bus(host->slot, true); /* Now that slots are all setup, we can enable card detect */ dw_mci_enable_cd(host); @@ -3359,9 +3322,9 @@ int dw_mci_runtime_resume(struct device *dev) return 0; err: - if (host->cur_slot && - (mmc_can_gpio_cd(host->cur_slot->mmc) || - !mmc_card_is_removable(host->cur_slot->mmc))) + if (host->slot && + (mmc_can_gpio_cd(host->slot->mmc) || + !mmc_card_is_removable(host->slot->mmc))) clk_disable_unprepare(host->biu_clk); return ret; diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h index ce347361f3dc..75da3756955d 100644 --- a/drivers/mmc/host/dw_mmc.h +++ b/drivers/mmc/host/dw_mmc.h @@ -20,8 +20,6 @@ #include <linux/reset.h> #include <linux/interrupt.h> -#define MAX_MCI_SLOTS 2 - enum dw_mci_state { STATE_IDLE = 0, STATE_SENDING_CMD, @@ -134,7 +132,6 @@ struct dw_mci_dma_slave { * ======= * * @lock is a softirq-safe spinlock protecting @queue as well as - * @cur_slot, @mrq and @state. These must always be updated * at the same time while holding @lock. * * @irq_lock is an irq-safe spinlock protecting the INTMASK register @@ -170,7 +167,6 @@ struct dw_mci { struct scatterlist *sg; struct sg_mapping_iter sg_miter; - struct dw_mci_slot *cur_slot; struct mmc_request *mrq; struct mmc_command *cmd; struct mmc_data *data; @@ -206,7 +202,6 @@ struct dw_mci { u32 bus_hz; u32 current_speed; - u32 num_slots; u32 fifoth_val; u16 verid; struct device *dev; @@ -215,7 +210,7 @@ struct dw_mci { void *priv; struct clk *biu_clk; struct clk *ciu_clk; - struct dw_mci_slot *slot[MAX_MCI_SLOTS]; + struct dw_mci_slot *slot; /* FIFO push and pull */ int fifo_depth; diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c index 5c1e178fc5f9..5a672a5218ad 100644 --- a/drivers/mmc/host/mtk-sd.c +++ b/drivers/mmc/host/mtk-sd.c @@ -1774,7 +1774,7 @@ static int msdc_drv_remove(struct platform_device *pdev) pm_runtime_disable(host->dev); pm_runtime_put_noidle(host->dev); dma_free_coherent(&pdev->dev, - sizeof(struct mt_gpdma_desc), + 2 * sizeof(struct mt_gpdma_desc), host->dma.gpd, host->dma.gpd_addr); dma_free_coherent(&pdev->dev, MAX_BD_NUM * sizeof(struct mt_bdma_desc), host->dma.bd, host->dma.bd_addr); diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 8c39dccacf39..7c12f3715676 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -250,14 +250,14 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc) struct omap_hsmmc_host *host = mmc_priv(mmc); struct mmc_ios *ios = &mmc->ios; - if (mmc->supply.vmmc) { + if (!IS_ERR(mmc->supply.vmmc)) { ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd); if (ret) return ret; } /* Enable interface voltage rail, if needed */ - if (mmc->supply.vqmmc && !host->vqmmc_enabled) { + if (!IS_ERR(mmc->supply.vqmmc) && !host->vqmmc_enabled) { ret = regulator_enable(mmc->supply.vqmmc); if (ret) { dev_err(mmc_dev(mmc), "vmmc_aux reg enable failed\n"); @@ -269,7 +269,7 @@ static int omap_hsmmc_enable_supply(struct mmc_host *mmc) return 0; err_vqmmc: - if (mmc->supply.vmmc) + if (!IS_ERR(mmc->supply.vmmc)) mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); return ret; @@ -281,7 +281,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc) int status; struct omap_hsmmc_host *host = mmc_priv(mmc); - if (mmc->supply.vqmmc && host->vqmmc_enabled) { + if (!IS_ERR(mmc->supply.vqmmc) && host->vqmmc_enabled) { ret = regulator_disable(mmc->supply.vqmmc); if (ret) { dev_err(mmc_dev(mmc), "vmmc_aux reg disable failed\n"); @@ -290,7 +290,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc) host->vqmmc_enabled = 0; } - if (mmc->supply.vmmc) { + if (!IS_ERR(mmc->supply.vmmc)) { ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0); if (ret) goto err_set_ocr; @@ -299,7 +299,7 @@ static int omap_hsmmc_disable_supply(struct mmc_host *mmc) return 0; err_set_ocr: - if (mmc->supply.vqmmc) { + if (!IS_ERR(mmc->supply.vqmmc)) { status = regulator_enable(mmc->supply.vqmmc); if (status) dev_err(mmc_dev(mmc), "vmmc_aux re-enable failed\n"); @@ -313,7 +313,7 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on, { int ret; - if (!host->pbias) + if (IS_ERR(host->pbias)) return 0; if (power_on) { @@ -363,7 +363,7 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on, * If we don't see a Vcc regulator, assume it's a fixed * voltage always-on regulator. */ - if (!mmc->supply.vmmc) + if (IS_ERR(mmc->supply.vmmc)) return 0; if (mmc_pdata(host)->before_set_reg) @@ -415,7 +415,7 @@ static int omap_hsmmc_disable_boot_regulator(struct regulator *reg) { int ret; - if (!reg) + if (IS_ERR(reg)) return 0; if (regulator_is_enabled(reg)) { @@ -466,36 +466,27 @@ static int omap_hsmmc_disable_boot_regulators(struct omap_hsmmc_host *host) static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) { - int ocr_value = 0; int ret; struct mmc_host *mmc = host->mmc; if (mmc_pdata(host)->set_power) return 0; - mmc->supply.vmmc = devm_regulator_get_optional(host->dev, "vmmc"); - if (IS_ERR(mmc->supply.vmmc)) { - ret = PTR_ERR(mmc->supply.vmmc); - if ((ret != -ENODEV) && host->dev->of_node) - return ret; - dev_dbg(host->dev, "unable to get vmmc regulator %ld\n", - PTR_ERR(mmc->supply.vmmc)); - mmc->supply.vmmc = NULL; - } else { - ocr_value = mmc_regulator_get_ocrmask(mmc->supply.vmmc); - if (ocr_value > 0) - mmc_pdata(host)->ocr_mask = ocr_value; - } + ret = mmc_regulator_get_supply(mmc); + if (ret == -EPROBE_DEFER) + return ret; /* Allow an aux regulator */ - mmc->supply.vqmmc = devm_regulator_get_optional(host->dev, "vmmc_aux"); if (IS_ERR(mmc->supply.vqmmc)) { - ret = PTR_ERR(mmc->supply.vqmmc); - if ((ret != -ENODEV) && host->dev->of_node) - return ret; - dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n", - PTR_ERR(mmc->supply.vqmmc)); - mmc->supply.vqmmc = NULL; + mmc->supply.vqmmc = devm_regulator_get_optional(host->dev, + "vmmc_aux"); + if (IS_ERR(mmc->supply.vqmmc)) { + ret = PTR_ERR(mmc->supply.vqmmc); + if ((ret != -ENODEV) && host->dev->of_node) + return ret; + dev_dbg(host->dev, "unable to get vmmc_aux regulator %ld\n", + PTR_ERR(mmc->supply.vqmmc)); + } } host->pbias = devm_regulator_get_optional(host->dev, "pbias"); @@ -508,7 +499,6 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host) } dev_dbg(host->dev, "unable to get pbias regulator %ld\n", PTR_ERR(host->pbias)); - host->pbias = NULL; } /* For eMMC do not power off when not in sleep state */ @@ -2146,7 +2136,8 @@ static int omap_hsmmc_probe(struct platform_device *pdev) if (ret) goto err_irq; - mmc->ocr_avail = mmc_pdata(host)->ocr_mask; + if (!mmc->ocr_avail) + mmc->ocr_avail = mmc_pdata(host)->ocr_mask; omap_hsmmc_disable_irq(host); diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index c763b404510f..59ab194cb009 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -702,7 +702,11 @@ static int pxamci_probe(struct platform_device *pdev) pxamci_init_ocr(host); - mmc->caps = 0; + /* + * This architecture used to disable bounce buffers through its + * defconfig, now it is done at runtime as a host property. + */ + mmc->caps = MMC_CAP_NO_BOUNCE_BUFF; host->cmdat = 0; if (!cpu_is_pxa25x()) { mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ; diff --git a/drivers/mmc/host/renesas_sdhi.h b/drivers/mmc/host/renesas_sdhi.h new file mode 100644 index 000000000000..ca83acc113b8 --- /dev/null +++ b/drivers/mmc/host/renesas_sdhi.h @@ -0,0 +1,39 @@ +/* + * Renesas Mobile SDHI + * + * Copyright (C) 2017 Horms Solutions Ltd., Simon Horman + * Copyright (C) 2017 Renesas Electronics Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef RENESAS_SDHI_H +#define RENESAS_SDHI_H + +#include <linux/platform_device.h> +#include "tmio_mmc.h" + +struct renesas_sdhi_scc { + unsigned long clk_rate; /* clock rate for SDR104 */ + u32 tap; /* sampling clock position for SDR104 */ +}; + +struct renesas_sdhi_of_data { + unsigned long tmio_flags; + u32 tmio_ocr_mask; + unsigned long capabilities; + unsigned long capabilities2; + enum dma_slave_buswidth dma_buswidth; + dma_addr_t dma_rx_offset; + unsigned int bus_shift; + int scc_offset; + struct renesas_sdhi_scc *taps; + int taps_num; +}; + +int renesas_sdhi_probe(struct platform_device *pdev, + const struct tmio_mmc_dma_ops *dma_ops); +int renesas_sdhi_remove(struct platform_device *pdev); +#endif diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/renesas_sdhi_core.c index bc6be0dbea39..a4fb07d0ea91 100644 --- a/drivers/mmc/host/sh_mobile_sdhi.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -1,8 +1,9 @@ /* - * SuperH Mobile SDHI + * Renesas SDHI * - * Copyright (C) 2016 Sang Engineering, Wolfram Sang - * Copyright (C) 2015-16 Renesas Electronics Corporation + * Copyright (C) 2015-17 Renesas Electronics Corporation + * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang + * Copyright (C) 2016-17 Horms Solutions, Simon Horman * Copyright (C) 2009 Magnus Damm * * This program is free software; you can redistribute it and/or modify @@ -23,8 +24,6 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/slab.h> -#include <linux/mod_devicetable.h> -#include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/mmc/host.h> @@ -35,6 +34,7 @@ #include <linux/pinctrl/pinctrl-state.h> #include <linux/regulator/consumer.h> +#include "renesas_sdhi.h" #include "tmio_mmc.h" #define EXT_ACC 0xe4 @@ -45,103 +45,10 @@ #define SDHI_VER_GEN3_SD 0xcc10 #define SDHI_VER_GEN3_SDMMC 0xcd10 -#define host_to_priv(host) container_of((host)->pdata, struct sh_mobile_sdhi, mmc_data) +#define host_to_priv(host) \ + container_of((host)->pdata, struct renesas_sdhi, mmc_data) -struct sh_mobile_sdhi_scc { - unsigned long clk_rate; /* clock rate for SDR104 */ - u32 tap; /* sampling clock position for SDR104 */ -}; - -struct sh_mobile_sdhi_of_data { - unsigned long tmio_flags; - u32 tmio_ocr_mask; - unsigned long capabilities; - unsigned long capabilities2; - enum dma_slave_buswidth dma_buswidth; - dma_addr_t dma_rx_offset; - unsigned bus_shift; - int scc_offset; - struct sh_mobile_sdhi_scc *taps; - int taps_num; -}; - -static const struct sh_mobile_sdhi_of_data of_default_cfg = { - .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT, -}; - -static const struct sh_mobile_sdhi_of_data of_rz_compatible = { - .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT, - .tmio_ocr_mask = MMC_VDD_32_33, - .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, -}; - -static const struct sh_mobile_sdhi_of_data of_rcar_gen1_compatible = { - .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | - TMIO_MMC_CLK_ACTUAL, - .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, -}; - -/* Definitions for sampling clocks */ -static struct sh_mobile_sdhi_scc rcar_gen2_scc_taps[] = { - { - .clk_rate = 156000000, - .tap = 0x00000703, - }, - { - .clk_rate = 0, - .tap = 0x00000300, - }, -}; - -static const struct sh_mobile_sdhi_of_data of_rcar_gen2_compatible = { - .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | - TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2, - .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, - .dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES, - .dma_rx_offset = 0x2000, - .scc_offset = 0x0300, - .taps = rcar_gen2_scc_taps, - .taps_num = ARRAY_SIZE(rcar_gen2_scc_taps), -}; - -/* Definitions for sampling clocks */ -static struct sh_mobile_sdhi_scc rcar_gen3_scc_taps[] = { - { - .clk_rate = 0, - .tap = 0x00000300, - }, -}; - -static const struct sh_mobile_sdhi_of_data of_rcar_gen3_compatible = { - .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | - TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2, - .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, - .bus_shift = 2, - .scc_offset = 0x1000, - .taps = rcar_gen3_scc_taps, - .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), -}; - -static const struct of_device_id sh_mobile_sdhi_of_match[] = { - { .compatible = "renesas,sdhi-shmobile" }, - { .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, }, - { .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, }, - { .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, }, - { .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, }, - { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, }, - { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, }, - { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, }, - { .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, }, - { .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, }, - { .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, }, - { .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, }, - { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, }, - { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, }, - {}, -}; -MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match); - -struct sh_mobile_sdhi { +struct renesas_sdhi { struct clk *clk; struct clk *clk_cd; struct tmio_mmc_data mmc_data; @@ -151,13 +58,13 @@ struct sh_mobile_sdhi { void __iomem *scc_ctl; }; -static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width) +static void renesas_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width) { u32 val; /* * see also - * sh_mobile_sdhi_of_data :: dma_buswidth + * renesas_sdhi_of_data :: dma_buswidth */ switch (sd_ctrl_read16(host, CTL_VERSION)) { case SDHI_VER_GEN2_SDR50: @@ -183,11 +90,12 @@ static void sh_mobile_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width) sd_ctrl_write16(host, EXT_ACC, val); } -static int sh_mobile_sdhi_clk_enable(struct tmio_mmc_host *host) +static int renesas_sdhi_clk_enable(struct tmio_mmc_host *host) { struct mmc_host *mmc = host->mmc; - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); int ret = clk_prepare_enable(priv->clk); + if (ret < 0) return ret; @@ -213,19 +121,19 @@ static int sh_mobile_sdhi_clk_enable(struct tmio_mmc_host *host) mmc->f_min = max(clk_round_rate(priv->clk, 1) / 512, 1L); /* enable 16bit data access on SDBUF as default */ - sh_mobile_sdhi_sdbuf_width(host, 16); + renesas_sdhi_sdbuf_width(host, 16); return 0; } -static unsigned int sh_mobile_sdhi_clk_update(struct tmio_mmc_host *host, - unsigned int new_clock) +static unsigned int renesas_sdhi_clk_update(struct tmio_mmc_host *host, + unsigned int new_clock) { - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); unsigned int freq, diff, best_freq = 0, diff_min = ~0; int i, ret; - /* tested only on RCar Gen2+ currently; may work for others */ + /* tested only on R-Car Gen2+ currently; may work for others */ if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2)) return clk_get_rate(priv->clk); @@ -257,26 +165,27 @@ static unsigned int sh_mobile_sdhi_clk_update(struct tmio_mmc_host *host, return ret == 0 ? best_freq : clk_get_rate(priv->clk); } -static void sh_mobile_sdhi_clk_disable(struct tmio_mmc_host *host) +static void renesas_sdhi_clk_disable(struct tmio_mmc_host *host) { - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); clk_disable_unprepare(priv->clk); clk_disable_unprepare(priv->clk_cd); } -static int sh_mobile_sdhi_card_busy(struct mmc_host *mmc) +static int renesas_sdhi_card_busy(struct mmc_host *mmc) { struct tmio_mmc_host *host = mmc_priv(mmc); - return !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & TMIO_STAT_DAT0); + return !(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & + TMIO_STAT_DAT0); } -static int sh_mobile_sdhi_start_signal_voltage_switch(struct mmc_host *mmc, - struct mmc_ios *ios) +static int renesas_sdhi_start_signal_voltage_switch(struct mmc_host *mmc, + struct mmc_ios *ios) { struct tmio_mmc_host *host = mmc_priv(mmc); - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); struct pinctrl_state *pin_state; int ret; @@ -327,21 +236,21 @@ static int sh_mobile_sdhi_start_signal_voltage_switch(struct mmc_host *mmc, #define SH_MOBILE_SDHI_SCC_RVSREQ_RVSERR BIT(2) static inline u32 sd_scc_read32(struct tmio_mmc_host *host, - struct sh_mobile_sdhi *priv, int addr) + struct renesas_sdhi *priv, int addr) { return readl(priv->scc_ctl + (addr << host->bus_shift)); } static inline void sd_scc_write32(struct tmio_mmc_host *host, - struct sh_mobile_sdhi *priv, + struct renesas_sdhi *priv, int addr, u32 val) { writel(val, priv->scc_ctl + (addr << host->bus_shift)); } -static unsigned int sh_mobile_sdhi_init_tuning(struct tmio_mmc_host *host) +static unsigned int renesas_sdhi_init_tuning(struct tmio_mmc_host *host) { - struct sh_mobile_sdhi *priv; + struct renesas_sdhi *priv; priv = host_to_priv(host); @@ -378,10 +287,10 @@ static unsigned int sh_mobile_sdhi_init_tuning(struct tmio_mmc_host *host) SH_MOBILE_SDHI_SCC_DTCNTL_TAPNUM_MASK; } -static void sh_mobile_sdhi_prepare_tuning(struct tmio_mmc_host *host, - unsigned long tap) +static void renesas_sdhi_prepare_tuning(struct tmio_mmc_host *host, + unsigned long tap) { - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); /* Set sampling clock position */ sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_TAPSET, tap); @@ -389,9 +298,9 @@ static void sh_mobile_sdhi_prepare_tuning(struct tmio_mmc_host *host, #define SH_MOBILE_SDHI_MAX_TAP 3 -static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host) +static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host) { - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); unsigned long tap_cnt; /* counter of tuning success */ unsigned long tap_set; /* tap position */ unsigned long tap_start;/* start position of tuning success */ @@ -412,9 +321,9 @@ static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host) tap_start = 0; tap_end = 0; for (i = 0; i < host->tap_num * 2; i++) { - if (test_bit(i, host->taps)) + if (test_bit(i, host->taps)) { ntap++; - else { + } else { if (ntap > tap_cnt) { tap_start = i - ntap; tap_end = i - 1; @@ -446,10 +355,9 @@ static int sh_mobile_sdhi_select_tuning(struct tmio_mmc_host *host) return 0; } - -static bool sh_mobile_sdhi_check_scc_error(struct tmio_mmc_host *host) +static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host) { - struct sh_mobile_sdhi *priv = host_to_priv(host); + struct renesas_sdhi *priv = host_to_priv(host); /* Check SCC error */ if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) & @@ -464,9 +372,9 @@ static bool sh_mobile_sdhi_check_scc_error(struct tmio_mmc_host *host) return false; } -static void sh_mobile_sdhi_hw_reset(struct tmio_mmc_host *host) +static void renesas_sdhi_hw_reset(struct tmio_mmc_host *host) { - struct sh_mobile_sdhi *priv; + struct renesas_sdhi *priv; priv = host_to_priv(host); @@ -490,7 +398,7 @@ static void sh_mobile_sdhi_hw_reset(struct tmio_mmc_host *host) sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL)); } -static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host) +static int renesas_sdhi_wait_idle(struct tmio_mmc_host *host) { int timeout = 1000; @@ -506,10 +414,9 @@ static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host) return 0; } -static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) +static int renesas_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) { - switch (addr) - { + switch (addr) { case CTL_SD_CMD: case CTL_STOP_INTERNAL_ACTION: case CTL_XFER_BLK_COUNT: @@ -519,14 +426,14 @@ static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) case CTL_TRANSACTION_CTL: case CTL_DMA_ENABLE: case EXT_ACC: - return sh_mobile_sdhi_wait_idle(host); + return renesas_sdhi_wait_idle(host); } return 0; } -static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card, - unsigned int direction, int blk_size) +static int renesas_sdhi_multi_io_quirk(struct mmc_card *card, + unsigned int direction, int blk_size) { /* * In Renesas controllers, when performing a @@ -543,30 +450,34 @@ static int sh_mobile_sdhi_multi_io_quirk(struct mmc_card *card, return blk_size; } -static void sh_mobile_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable) +static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable) { sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0); /* enable 32bit access if DMA mode if possibile */ - sh_mobile_sdhi_sdbuf_width(host, enable ? 32 : 16); + renesas_sdhi_sdbuf_width(host, enable ? 32 : 16); } -static int sh_mobile_sdhi_probe(struct platform_device *pdev) +int renesas_sdhi_probe(struct platform_device *pdev, + const struct tmio_mmc_dma_ops *dma_ops) { - const struct sh_mobile_sdhi_of_data *of_data = of_device_get_match_data(&pdev->dev); - struct sh_mobile_sdhi *priv; - struct tmio_mmc_data *mmc_data; struct tmio_mmc_data *mmd = pdev->dev.platform_data; + const struct renesas_sdhi_of_data *of_data; + struct tmio_mmc_data *mmc_data; + struct tmio_mmc_dma *dma_priv; struct tmio_mmc_host *host; + struct renesas_sdhi *priv; struct resource *res; int irq, ret, i; - struct tmio_mmc_dma *dma_priv; + + of_data = of_device_get_match_data(&pdev->dev); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) return -EINVAL; - priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(struct renesas_sdhi), + GFP_KERNEL); if (!priv) return -ENOMEM; @@ -609,7 +520,6 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) goto eprobe; } - if (of_data) { mmc_data->flags |= of_data->tmio_flags; mmc_data->ocr_mask = of_data->tmio_ocr_mask; @@ -621,18 +531,18 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) } host->dma = dma_priv; - host->write16_hook = sh_mobile_sdhi_write16_hook; - host->clk_enable = sh_mobile_sdhi_clk_enable; - host->clk_update = sh_mobile_sdhi_clk_update; - host->clk_disable = sh_mobile_sdhi_clk_disable; - host->multi_io_quirk = sh_mobile_sdhi_multi_io_quirk; + host->write16_hook = renesas_sdhi_write16_hook; + host->clk_enable = renesas_sdhi_clk_enable; + host->clk_update = renesas_sdhi_clk_update; + host->clk_disable = renesas_sdhi_clk_disable; + host->multi_io_quirk = renesas_sdhi_multi_io_quirk; /* SDR speeds are only available on Gen2+ */ if (mmc_data->flags & TMIO_MMC_MIN_RCAR2) { /* card_busy caused issues on r8a73a4 (pre-Gen2) CD-less SDHI */ - host->card_busy = sh_mobile_sdhi_card_busy; + host->card_busy = renesas_sdhi_card_busy; host->start_signal_voltage_switch = - sh_mobile_sdhi_start_signal_voltage_switch; + renesas_sdhi_start_signal_voltage_switch; } /* Orginally registers were 16 bit apart, could be 32 or 64 nowadays */ @@ -643,7 +553,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) *mmc_data = *mmd; dma_priv->filter = shdma_chan_filter; - dma_priv->enable = sh_mobile_sdhi_enable_dma; + dma_priv->enable = renesas_sdhi_enable_dma; mmc_data->alignment_shift = 1; /* 2-byte alignment */ mmc_data->capabilities |= MMC_CAP_MMC_HIGHSPEED; @@ -659,15 +569,13 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) */ mmc_data->flags |= TMIO_MMC_SDIO_IRQ; - /* - * All SDHI have CMD12 controll bit - */ + /* All SDHI have CMD12 control bit */ mmc_data->flags |= TMIO_MMC_HAVE_CMD12_CTRL; /* All SDHI have SDIO status bits which must be 1 */ mmc_data->flags |= TMIO_MMC_SDIO_STATUS_SETBITS; - ret = tmio_mmc_host_probe(host, mmc_data); + ret = tmio_mmc_host_probe(host, mmc_data, dma_ops); if (ret < 0) goto efree; @@ -675,7 +583,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) if (of_data && of_data->scc_offset && (host->mmc->caps & MMC_CAP_UHS_SDR104 || host->mmc->caps2 & MMC_CAP2_HS200_1_8V_SDR)) { - const struct sh_mobile_sdhi_scc *taps = of_data->taps; + const struct renesas_sdhi_scc *taps = of_data->taps; bool hit = false; host->mmc->caps |= MMC_CAP_HW_RESET; @@ -693,11 +601,11 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) dev_warn(&host->pdev->dev, "Unknown clock rate for SDR104\n"); priv->scc_ctl = host->ctl + of_data->scc_offset; - host->init_tuning = sh_mobile_sdhi_init_tuning; - host->prepare_tuning = sh_mobile_sdhi_prepare_tuning; - host->select_tuning = sh_mobile_sdhi_select_tuning; - host->check_scc_error = sh_mobile_sdhi_check_scc_error; - host->hw_reset = sh_mobile_sdhi_hw_reset; + host->init_tuning = renesas_sdhi_init_tuning; + host->prepare_tuning = renesas_sdhi_prepare_tuning; + host->select_tuning = renesas_sdhi_select_tuning; + host->check_scc_error = renesas_sdhi_check_scc_error; + host->hw_reset = renesas_sdhi_hw_reset; } i = 0; @@ -707,7 +615,7 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev) break; i++; ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0, - dev_name(&pdev->dev), host); + dev_name(&pdev->dev), host); if (ret) goto eirq; } @@ -732,8 +640,9 @@ efree: eprobe: return ret; } +EXPORT_SYMBOL_GPL(renesas_sdhi_probe); -static int sh_mobile_sdhi_remove(struct platform_device *pdev) +int renesas_sdhi_remove(struct platform_device *pdev) { struct mmc_host *mmc = platform_get_drvdata(pdev); struct tmio_mmc_host *host = mmc_priv(mmc); @@ -742,28 +651,4 @@ static int sh_mobile_sdhi_remove(struct platform_device *pdev) return 0; } - -static const struct dev_pm_ops tmio_mmc_dev_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, - pm_runtime_force_resume) - SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, - tmio_mmc_host_runtime_resume, - NULL) -}; - -static struct platform_driver sh_mobile_sdhi_driver = { - .driver = { - .name = "sh_mobile_sdhi", - .pm = &tmio_mmc_dev_pm_ops, - .of_match_table = sh_mobile_sdhi_of_match, - }, - .probe = sh_mobile_sdhi_probe, - .remove = sh_mobile_sdhi_remove, -}; - -module_platform_driver(sh_mobile_sdhi_driver); - -MODULE_DESCRIPTION("SuperH Mobile SDHI driver"); -MODULE_AUTHOR("Magnus Damm"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:sh_mobile_sdhi"); +EXPORT_SYMBOL_GPL(renesas_sdhi_remove); diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c index e2093db2b7ff..642a0dcc8c5c 100644 --- a/drivers/mmc/host/tmio_mmc_dma.c +++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c @@ -1,13 +1,14 @@ /* - * linux/drivers/mmc/tmio_mmc_dma.c + * DMA function for TMIO MMC implementations * + * Copyright (C) 2016-17 Renesas Electronics Corporation + * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang + * Copyright (C) 2017 Horms Solutions, Simon Horman * Copyright (C) 2010-2011 Guennadi Liakhovetski * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * DMA function for TMIO MMC implementations */ #include <linux/device.h> @@ -15,14 +16,96 @@ #include <linux/dmaengine.h> #include <linux/mfd/tmio.h> #include <linux/mmc/host.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> #include <linux/pagemap.h> #include <linux/scatterlist.h> +#include "renesas_sdhi.h" #include "tmio_mmc.h" #define TMIO_MMC_MIN_DMA_LEN 8 -void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable) +static const struct renesas_sdhi_of_data of_default_cfg = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT, +}; + +static const struct renesas_sdhi_of_data of_rz_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_32BIT_DATA_PORT, + .tmio_ocr_mask = MMC_VDD_32_33, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, +}; + +static const struct renesas_sdhi_of_data of_rcar_gen1_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | + TMIO_MMC_CLK_ACTUAL, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ, +}; + +/* Definitions for sampling clocks */ +static struct renesas_sdhi_scc rcar_gen2_scc_taps[] = { + { + .clk_rate = 156000000, + .tap = 0x00000703, + }, + { + .clk_rate = 0, + .tap = 0x00000300, + }, +}; + +static const struct renesas_sdhi_of_data of_rcar_gen2_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | + TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | + MMC_CAP_CMD23, + .dma_buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES, + .dma_rx_offset = 0x2000, + .scc_offset = 0x0300, + .taps = rcar_gen2_scc_taps, + .taps_num = ARRAY_SIZE(rcar_gen2_scc_taps), +}; + +/* Definitions for sampling clocks */ +static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = { + { + .clk_rate = 0, + .tap = 0x00000300, + }, +}; + +static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE | + TMIO_MMC_CLK_ACTUAL | TMIO_MMC_MIN_RCAR2, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | + MMC_CAP_CMD23, + .bus_shift = 2, + .scc_offset = 0x1000, + .taps = rcar_gen3_scc_taps, + .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), +}; + +static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = { + { .compatible = "renesas,sdhi-shmobile" }, + { .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, }, + { .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, }, + { .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, }, + { .compatible = "renesas,sdhi-r7s72100", .data = &of_rz_compatible, }, + { .compatible = "renesas,sdhi-r8a7778", .data = &of_rcar_gen1_compatible, }, + { .compatible = "renesas,sdhi-r8a7779", .data = &of_rcar_gen1_compatible, }, + { .compatible = "renesas,sdhi-r8a7790", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7791", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, }, + { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, }, + { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, }, + {}, +}; +MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match); + +static void renesas_sdhi_sys_dmac_enable_dma(struct tmio_mmc_host *host, + bool enable) { if (!host->chan_tx || !host->chan_rx) return; @@ -31,19 +114,19 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable) host->dma->enable(host, enable); } -void tmio_mmc_abort_dma(struct tmio_mmc_host *host) +static void renesas_sdhi_sys_dmac_abort_dma(struct tmio_mmc_host *host) { - tmio_mmc_enable_dma(host, false); + renesas_sdhi_sys_dmac_enable_dma(host, false); if (host->chan_rx) dmaengine_terminate_all(host->chan_rx); if (host->chan_tx) dmaengine_terminate_all(host->chan_tx); - tmio_mmc_enable_dma(host, true); + renesas_sdhi_sys_dmac_enable_dma(host, true); } -static void tmio_mmc_dma_callback(void *arg) +static void renesas_sdhi_sys_dmac_dma_callback(void *arg) { struct tmio_mmc_host *host = arg; @@ -71,7 +154,7 @@ out: spin_unlock_irq(&host->lock); } -static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host) +static void renesas_sdhi_sys_dmac_start_dma_rx(struct tmio_mmc_host *host) { struct scatterlist *sg = host->sg_ptr, *sg_tmp; struct dma_async_tx_descriptor *desc = NULL; @@ -112,12 +195,12 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host) ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_FROM_DEVICE); if (ret > 0) - desc = dmaengine_prep_slave_sg(chan, sg, ret, - DMA_DEV_TO_MEM, DMA_CTRL_ACK); + desc = dmaengine_prep_slave_sg(chan, sg, ret, DMA_DEV_TO_MEM, + DMA_CTRL_ACK); if (desc) { reinit_completion(&host->dma_dataend); - desc->callback = tmio_mmc_dma_callback; + desc->callback = renesas_sdhi_sys_dmac_dma_callback; desc->callback_param = host; cookie = dmaengine_submit(desc); @@ -129,7 +212,7 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host) pio: if (!desc) { /* DMA failed, fall back to PIO */ - tmio_mmc_enable_dma(host, false); + renesas_sdhi_sys_dmac_enable_dma(host, false); if (ret >= 0) ret = -EIO; host->chan_rx = NULL; @@ -145,7 +228,7 @@ pio: } } -static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host) +static void renesas_sdhi_sys_dmac_start_dma_tx(struct tmio_mmc_host *host) { struct scatterlist *sg = host->sg_ptr, *sg_tmp; struct dma_async_tx_descriptor *desc = NULL; @@ -181,6 +264,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host) if (!aligned) { unsigned long flags; void *sg_vaddr = tmio_mmc_kmap_atomic(sg, &flags); + sg_init_one(&host->bounce_sg, host->bounce_buf, sg->length); memcpy(host->bounce_buf, sg_vaddr, host->bounce_sg.length); tmio_mmc_kunmap_atomic(sg, &flags, sg_vaddr); @@ -190,12 +274,12 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host) ret = dma_map_sg(chan->device->dev, sg, host->sg_len, DMA_TO_DEVICE); if (ret > 0) - desc = dmaengine_prep_slave_sg(chan, sg, ret, - DMA_MEM_TO_DEV, DMA_CTRL_ACK); + desc = dmaengine_prep_slave_sg(chan, sg, ret, DMA_MEM_TO_DEV, + DMA_CTRL_ACK); if (desc) { reinit_completion(&host->dma_dataend); - desc->callback = tmio_mmc_dma_callback; + desc->callback = renesas_sdhi_sys_dmac_dma_callback; desc->callback_param = host; cookie = dmaengine_submit(desc); @@ -207,7 +291,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host) pio: if (!desc) { /* DMA failed, fall back to PIO */ - tmio_mmc_enable_dma(host, false); + renesas_sdhi_sys_dmac_enable_dma(host, false); if (ret >= 0) ret = -EIO; host->chan_tx = NULL; @@ -223,19 +307,19 @@ pio: } } -void tmio_mmc_start_dma(struct tmio_mmc_host *host, - struct mmc_data *data) +static void renesas_sdhi_sys_dmac_start_dma(struct tmio_mmc_host *host, + struct mmc_data *data) { if (data->flags & MMC_DATA_READ) { if (host->chan_rx) - tmio_mmc_start_dma_rx(host); + renesas_sdhi_sys_dmac_start_dma_rx(host); } else { if (host->chan_tx) - tmio_mmc_start_dma_tx(host); + renesas_sdhi_sys_dmac_start_dma_tx(host); } } -static void tmio_mmc_issue_tasklet_fn(unsigned long priv) +static void renesas_sdhi_sys_dmac_issue_tasklet_fn(unsigned long priv) { struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv; struct dma_chan *chan = NULL; @@ -257,11 +341,12 @@ static void tmio_mmc_issue_tasklet_fn(unsigned long priv) dma_async_issue_pending(chan); } -void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata) +static void renesas_sdhi_sys_dmac_request_dma(struct tmio_mmc_host *host, + struct tmio_mmc_data *pdata) { /* We can only either use DMA for both Tx and Rx or not use it at all */ if (!host->dma || (!host->pdev->dev.of_node && - (!pdata->chan_priv_tx || !pdata->chan_priv_rx))) + (!pdata->chan_priv_tx || !pdata->chan_priv_rx))) return; if (!host->chan_tx && !host->chan_rx) { @@ -287,7 +372,8 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat return; cfg.direction = DMA_MEM_TO_DEV; - cfg.dst_addr = res->start + (CTL_SD_DATA_PORT << host->bus_shift); + cfg.dst_addr = res->start + + (CTL_SD_DATA_PORT << host->bus_shift); cfg.dst_addr_width = host->dma->dma_buswidth; if (!cfg.dst_addr_width) cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; @@ -320,10 +406,12 @@ void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdat goto ebouncebuf; init_completion(&host->dma_dataend); - tasklet_init(&host->dma_issue, tmio_mmc_issue_tasklet_fn, (unsigned long)host); + tasklet_init(&host->dma_issue, + renesas_sdhi_sys_dmac_issue_tasklet_fn, + (unsigned long)host); } - tmio_mmc_enable_dma(host, true); + renesas_sdhi_sys_dmac_enable_dma(host, true); return; @@ -337,15 +425,17 @@ ecfgtx: host->chan_tx = NULL; } -void tmio_mmc_release_dma(struct tmio_mmc_host *host) +static void renesas_sdhi_sys_dmac_release_dma(struct tmio_mmc_host *host) { if (host->chan_tx) { struct dma_chan *chan = host->chan_tx; + host->chan_tx = NULL; dma_release_channel(chan); } if (host->chan_rx) { struct dma_chan *chan = host->chan_rx; + host->chan_rx = NULL; dma_release_channel(chan); } @@ -354,3 +444,41 @@ void tmio_mmc_release_dma(struct tmio_mmc_host *host) host->bounce_buf = NULL; } } + +static const struct tmio_mmc_dma_ops renesas_sdhi_sys_dmac_dma_ops = { + .start = renesas_sdhi_sys_dmac_start_dma, + .enable = renesas_sdhi_sys_dmac_enable_dma, + .request = renesas_sdhi_sys_dmac_request_dma, + .release = renesas_sdhi_sys_dmac_release_dma, + .abort = renesas_sdhi_sys_dmac_abort_dma, +}; + +static int renesas_sdhi_sys_dmac_probe(struct platform_device *pdev) +{ + return renesas_sdhi_probe(pdev, &renesas_sdhi_sys_dmac_dma_ops); +} + +static const struct dev_pm_ops renesas_sdhi_sys_dmac_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, + tmio_mmc_host_runtime_resume, + NULL) +}; + +static struct platform_driver renesas_sys_dmac_sdhi_driver = { + .driver = { + .name = "sh_mobile_sdhi", + .pm = &renesas_sdhi_sys_dmac_dev_pm_ops, + .of_match_table = renesas_sdhi_sys_dmac_of_match, + }, + .probe = renesas_sdhi_sys_dmac_probe, + .remove = renesas_sdhi_remove, +}; + +module_platform_driver(renesas_sys_dmac_sdhi_driver); + +MODULE_DESCRIPTION("Renesas SDHI driver"); +MODULE_AUTHOR("Magnus Damm"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:sh_mobile_sdhi"); diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index c6a9a1bfaa22..cf66a3db71b8 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -274,7 +274,6 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR | MMC_CAP_CMD_DURING_TFR | MMC_CAP_WAIT_WHILE_BUSY, - .caps2 = MMC_CAP2_HC_ERASE_SZ, .flags = SDHCI_ACPI_RUNTIME_PM, .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | @@ -396,9 +395,6 @@ static int sdhci_acpi_probe(struct platform_device *pdev) if (child->status.present && child->status.enabled) acpi_device_fix_up_power(child); - if (acpi_bus_get_status(device) || !device->status.present) - return -ENODEV; - if (sdhci_acpi_byt_defer(dev)) return -EPROBE_DEFER; diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index 242c5dc7a81e..e2f638338e8f 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -89,9 +89,6 @@ static int sdhci_brcmstb_probe(struct platform_device *pdev) goto err_clk; } - /* Enable MMC_CAP2_HC_ERASE_SZ for better max discard calculations */ - host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ; - sdhci_get_of_property(pdev); mmc_of_parse(host->mmc); diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 23d8b8a73ae9..85140c9af581 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -95,7 +95,7 @@ #define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1) /* - * There is an INT DMA ERR mis-match between eSDHC and STD SDHC SPEC: + * There is an INT DMA ERR mismatch between eSDHC and STD SDHC SPEC: * Bit25 is used in STD SPEC, and is reserved in fsl eSDHC design, * but bit28 is used as the INT DMA ERR in fsl eSDHC design. * Define this macro DMA error INT for fsl eSDHC @@ -110,16 +110,11 @@ * In exact block transfer, the controller doesn't complete the * operations automatically as required at the end of the * transfer and remains on hold if the abort command is not sent. - * As a result, the TC flag is not asserted and SW received timeout - * exeception. Bit1 of Vendor Spec registor is used to fix it. + * As a result, the TC flag is not asserted and SW received timeout + * exception. Bit1 of Vendor Spec register is used to fix it. */ #define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1) /* - * The flag enables the workaround for ESDHC errata ENGcm07207 which - * affects i.MX25 and i.MX35. - */ -#define ESDHC_FLAG_ENGCM07207 BIT(2) -/* * The flag tells that the ESDHC controller is an USDHC block that is * integrated on the i.MX6 series. */ @@ -131,9 +126,11 @@ /* The IP has SDHCI_CAPABILITIES_1 register */ #define ESDHC_FLAG_HAVE_CAP1 BIT(6) /* - * The IP has errata ERR004536 + * The IP has erratum ERR004536 * uSDHC: ADMA Length Mismatch Error occurs if the AHB read access is slow, * when reading data from the card + * This flag is also set for i.MX25 and i.MX35 in order to get + * SDHCI_QUIRK_BROKEN_ADMA, but for different reasons (ADMA capability bits). */ #define ESDHC_FLAG_ERR004536 BIT(7) /* The IP supports HS200 mode */ @@ -141,7 +138,7 @@ /* The IP supports HS400 mode */ #define ESDHC_FLAG_HS400 BIT(9) -/* A higher clock ferquency than this rate requires strobell dll control */ +/* A clock frequency higher than this rate requires strobe dll control */ #define ESDHC_STROBE_DLL_CLK_FREQ 100000000 struct esdhc_soc_data { @@ -149,11 +146,11 @@ struct esdhc_soc_data { }; static struct esdhc_soc_data esdhc_imx25_data = { - .flags = ESDHC_FLAG_ENGCM07207, + .flags = ESDHC_FLAG_ERR004536, }; static struct esdhc_soc_data esdhc_imx35_data = { - .flags = ESDHC_FLAG_ENGCM07207, + .flags = ESDHC_FLAG_ERR004536, }; static struct esdhc_soc_data esdhc_imx51_data = { @@ -197,7 +194,7 @@ struct pltfm_imx_data { struct clk *clk_ahb; struct clk *clk_per; enum { - NO_CMD_PENDING, /* no multiblock command pending*/ + NO_CMD_PENDING, /* no multiblock command pending */ MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */ WAIT_FOR_INT, /* sent CMD12, waiting for response INT */ } multiblock_status; @@ -286,7 +283,7 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) * ADMA2 capability of esdhc, but this bit is messed up on * some SOCs (e.g. on MX25, MX35 this bit is set, but they * don't actually support ADMA2). So set the BROKEN_ADMA - * uirk on MX25/35 platforms. + * quirk on MX25/35 platforms. */ if (val & SDHCI_CAN_DO_ADMA1) { @@ -351,7 +348,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) { /* * Clear and then set D3CD bit to avoid missing the - * card interrupt. This is a eSDHC controller problem + * card interrupt. This is an eSDHC controller problem * so we need to apply the following workaround: clear * and set D3CD bit will make eSDHC re-sample the card * interrupt. In case a card interrupt was lost, @@ -579,7 +576,7 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); - u32 new_val; + u32 new_val = 0; u32 mask; switch (reg) { @@ -604,35 +601,52 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) * Do not touch buswidth bits here. This is done in * esdhc_pltfm_bus_width. * Do not touch the D3CD bit either which is used for the - * SDIO interrupt errata workaround. + * SDIO interrupt erratum workaround. */ mask = 0xffff & ~(ESDHC_CTRL_BUSWIDTH_MASK | ESDHC_CTRL_D3CD); esdhc_clrset_le(host, mask, new_val, reg); return; + case SDHCI_SOFTWARE_RESET: + if (val & SDHCI_RESET_DATA) + new_val = readl(host->ioaddr + SDHCI_HOST_CONTROL); + break; } esdhc_clrset_le(host, 0xff, val, reg); - /* - * The esdhc has a design violation to SDHC spec which tells - * that software reset should not affect card detection circuit. - * But esdhc clears its SYSCTL register bits [0..2] during the - * software reset. This will stop those clocks that card detection - * circuit relies on. To work around it, we turn the clocks on back - * to keep card detection circuit functional. - */ - if ((reg == SDHCI_SOFTWARE_RESET) && (val & 1)) { - esdhc_clrset_le(host, 0x7, 0x7, ESDHC_SYSTEM_CONTROL); - /* - * The reset on usdhc fails to clear MIX_CTRL register. - * Do it manually here. - */ - if (esdhc_is_usdhc(imx_data)) { - /* the tuning bits should be kept during reset */ - new_val = readl(host->ioaddr + ESDHC_MIX_CTRL); - writel(new_val & ESDHC_MIX_CTRL_TUNING_MASK, - host->ioaddr + ESDHC_MIX_CTRL); - imx_data->is_ddr = 0; + if (reg == SDHCI_SOFTWARE_RESET) { + if (val & SDHCI_RESET_ALL) { + /* + * The esdhc has a design violation to SDHC spec which + * tells that software reset should not affect card + * detection circuit. But esdhc clears its SYSCTL + * register bits [0..2] during the software reset. This + * will stop those clocks that card detection circuit + * relies on. To work around it, we turn the clocks on + * back to keep card detection circuit functional. + */ + esdhc_clrset_le(host, 0x7, 0x7, ESDHC_SYSTEM_CONTROL); + /* + * The reset on usdhc fails to clear MIX_CTRL register. + * Do it manually here. + */ + if (esdhc_is_usdhc(imx_data)) { + /* + * the tuning bits should be kept during reset + */ + new_val = readl(host->ioaddr + ESDHC_MIX_CTRL); + writel(new_val & ESDHC_MIX_CTRL_TUNING_MASK, + host->ioaddr + ESDHC_MIX_CTRL); + imx_data->is_ddr = 0; + } + } else if (val & SDHCI_RESET_DATA) { + /* + * The eSDHC DAT line software reset clears at least the + * data transfer width on i.MX25, so make sure that the + * Host Control register is unaffected. + */ + esdhc_clrset_le(host, 0xff, new_val, + SDHCI_HOST_CONTROL); } } } @@ -657,7 +671,8 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); unsigned int host_clock = pltfm_host->clock; - int pre_div = 2; + int ddr_pre_div = imx_data->is_ddr ? 2 : 1; + int pre_div = 1; int div = 1; u32 temp, val; @@ -672,28 +687,23 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host, return; } - if (esdhc_is_usdhc(imx_data) && !imx_data->is_ddr) - pre_div = 1; - temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN | ESDHC_CLOCK_MASK); sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL); - while (host_clock / pre_div / 16 > clock && pre_div < 256) + while (host_clock / (16 * pre_div * ddr_pre_div) > clock && + pre_div < 256) pre_div *= 2; - while (host_clock / pre_div / div > clock && div < 16) + while (host_clock / (div * pre_div * ddr_pre_div) > clock && div < 16) div++; - host->mmc->actual_clock = host_clock / pre_div / div; + host->mmc->actual_clock = host_clock / (div * pre_div * ddr_pre_div); dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n", clock, host->mmc->actual_clock); - if (imx_data->is_ddr) - pre_div >>= 2; - else - pre_div >>= 1; + pre_div >>= 1; div--; temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL); @@ -763,7 +773,7 @@ static void esdhc_prepare_tuning(struct sdhci_host *host, u32 val) writel(reg, host->ioaddr + ESDHC_MIX_CTRL); writel(val << 8, host->ioaddr + ESDHC_TUNE_CTRL_STATUS); dev_dbg(mmc_dev(host->mmc), - "tunning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n", + "tuning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n", val, readl(host->ioaddr + ESDHC_TUNE_CTRL_STATUS)); } @@ -807,7 +817,7 @@ static int esdhc_executing_tuning(struct sdhci_host *host, u32 opcode) ret = mmc_send_tuning(host->mmc, opcode, NULL); esdhc_post_tuning(host); - dev_dbg(mmc_dev(host->mmc), "tunning %s at 0x%x ret %d\n", + dev_dbg(mmc_dev(host->mmc), "tuning %s at 0x%x ret %d\n", ret ? "failed" : "passed", avg, ret); return ret; @@ -847,15 +857,15 @@ static int esdhc_change_pinstate(struct sdhci_host *host, } /* - * For HS400 eMMC, there is a data_strobe line, this signal is generated + * For HS400 eMMC, there is a data_strobe line. This signal is generated * by the device and used for data output and CRC status response output * in HS400 mode. The frequency of this signal follows the frequency of - * CLK generated by host. Host receive the data which is aligned to the + * CLK generated by host. The host receives the data which is aligned to the * edge of data_strobe line. Due to the time delay between CLK line and * data_strobe line, if the delay time is larger than one clock cycle, - * then CLK and data_strobe line will misaligned, read error shows up. + * then CLK and data_strobe line will be misaligned, read error shows up. * So when the CLK is higher than 100MHz, each clock cycle is short enough, - * host should config the delay target. + * host should configure the delay target. */ static void esdhc_set_strobe_dll(struct sdhci_host *host) { @@ -895,7 +905,7 @@ static void esdhc_reset_tuning(struct sdhci_host *host) struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); u32 ctrl; - /* Rest the tuning circurt */ + /* Reset the tuning circuit */ if (esdhc_is_usdhc(imx_data)) { if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) { ctrl = readl(host->ioaddr + ESDHC_MIX_CTRL); @@ -976,7 +986,7 @@ static unsigned int esdhc_get_max_timeout_count(struct sdhci_host *host) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); - /* Doc Errata: the uSDHC actual maximum timeout count is 1 << 29 */ + /* Doc Erratum: the uSDHC actual maximum timeout count is 1 << 29 */ return esdhc_is_usdhc(imx_data) ? 1 << 29 : 1 << 27; } @@ -1032,10 +1042,10 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host) /* * ROM code will change the bit burst_length_enable setting - * to zero if this usdhc is choosed to boot system. Change + * to zero if this usdhc is chosen to boot system. Change * it back here, otherwise it will impact the performance a * lot. This bit is used to enable/disable the burst length - * for the external AHB2AXI bridge, it's usefully especially + * for the external AHB2AXI bridge. It's useful especially * for INCR transfer because without burst length indicator, * the AHB2AXI bridge does not know the burst length in * advance. And without burst length indicator, AHB INCR @@ -1045,7 +1055,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host) | ESDHC_BURST_LEN_EN_INCR, host->ioaddr + SDHCI_HOST_CONTROL); /* - * errata ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL + * erratum ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL * TO1.1, it's harmless for MX6SL */ writel(readl(host->ioaddr + 0x6c) | BIT(7), @@ -1104,7 +1114,7 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, mmc_of_parse_voltage(np, &host->ocr_mask); - /* sdr50 and sdr104 needs work on 1.8v signal voltage */ + /* sdr50 and sdr104 need work on 1.8v signal voltage */ if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data) && !IS_ERR(imx_data->pins_default)) { imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl, @@ -1116,7 +1126,8 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, dev_warn(mmc_dev(host->mmc), "could not get ultra high speed state, work on normal mode\n"); /* - * fall back to not support uhs by specify no 1.8v quirk + * fall back to not supporting uhs by specifying no + * 1.8v quirk */ host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; } @@ -1250,14 +1261,20 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) pltfm_host->clk = imx_data->clk_per; pltfm_host->clock = clk_get_rate(pltfm_host->clk); - clk_prepare_enable(imx_data->clk_per); - clk_prepare_enable(imx_data->clk_ipg); - clk_prepare_enable(imx_data->clk_ahb); + err = clk_prepare_enable(imx_data->clk_per); + if (err) + goto free_sdhci; + err = clk_prepare_enable(imx_data->clk_ipg); + if (err) + goto disable_per_clk; + err = clk_prepare_enable(imx_data->clk_ahb); + if (err) + goto disable_ipg_clk; imx_data->pinctrl = devm_pinctrl_get(&pdev->dev); if (IS_ERR(imx_data->pinctrl)) { err = PTR_ERR(imx_data->pinctrl); - goto disable_clk; + goto disable_ahb_clk; } imx_data->pins_default = pinctrl_lookup_state(imx_data->pinctrl, @@ -1265,11 +1282,6 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) if (IS_ERR(imx_data->pins_default)) dev_warn(mmc_dev(host->mmc), "could not get default state\n"); - if (imx_data->socdata->flags & ESDHC_FLAG_ENGCM07207) - /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ - host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK - | SDHCI_QUIRK_BROKEN_ADMA; - if (esdhc_is_usdhc(imx_data)) { host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN; host->mmc->caps |= MMC_CAP_1_8V_DDR; @@ -1297,13 +1309,13 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) else err = sdhci_esdhc_imx_probe_nondt(pdev, host, imx_data); if (err) - goto disable_clk; + goto disable_ahb_clk; sdhci_esdhc_imx_hwinit(host); err = sdhci_add_host(host); if (err) - goto disable_clk; + goto disable_ahb_clk; pm_runtime_set_active(&pdev->dev); pm_runtime_set_autosuspend_delay(&pdev->dev, 50); @@ -1313,10 +1325,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) return 0; -disable_clk: - clk_disable_unprepare(imx_data->clk_per); - clk_disable_unprepare(imx_data->clk_ipg); +disable_ahb_clk: clk_disable_unprepare(imx_data->clk_ahb); +disable_ipg_clk: + clk_disable_unprepare(imx_data->clk_ipg); +disable_per_clk: + clk_disable_unprepare(imx_data->clk_per); free_sdhci: sdhci_pltfm_free(pdev); return err; @@ -1393,14 +1407,34 @@ static int sdhci_esdhc_runtime_resume(struct device *dev) struct sdhci_host *host = dev_get_drvdata(dev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host); + int err; if (!sdhci_sdio_irq_enabled(host)) { - clk_prepare_enable(imx_data->clk_per); - clk_prepare_enable(imx_data->clk_ipg); + err = clk_prepare_enable(imx_data->clk_per); + if (err) + return err; + err = clk_prepare_enable(imx_data->clk_ipg); + if (err) + goto disable_per_clk; } - clk_prepare_enable(imx_data->clk_ahb); + err = clk_prepare_enable(imx_data->clk_ahb); + if (err) + goto disable_ipg_clk; + err = sdhci_runtime_resume_host(host); + if (err) + goto disable_ahb_clk; + + return 0; - return sdhci_runtime_resume_host(host); +disable_ahb_clk: + clk_disable_unprepare(imx_data->clk_ahb); +disable_ipg_clk: + if (!sdhci_sdio_irq_enabled(host)) + clk_disable_unprepare(imx_data->clk_ipg); +disable_per_clk: + if (!sdhci_sdio_irq_enabled(host)) + clk_disable_unprepare(imx_data->clk_per); + return err; } #endif diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h index c4bbd7485987..e7893f21b65e 100644 --- a/drivers/mmc/host/sdhci-esdhc.h +++ b/drivers/mmc/host/sdhci-esdhc.h @@ -19,6 +19,7 @@ */ #define ESDHC_DEFAULT_QUIRKS (SDHCI_QUIRK_FORCE_BLK_SZ_2048 | \ + SDHCI_QUIRK_32BIT_DMA_ADDR | \ SDHCI_QUIRK_NO_BUSY_IRQ | \ SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK | \ SDHCI_QUIRK_PIO_NEEDS_DELAY | \ diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c index ea6b36c88ae7..b13c0a7d50e4 100644 --- a/drivers/mmc/host/sdhci-of-arasan.c +++ b/drivers/mmc/host/sdhci-of-arasan.c @@ -638,7 +638,7 @@ static int sdhci_arasan_probe(struct platform_device *pdev) ret = mmc_of_parse(host->mmc); if (ret) { - dev_err(&pdev->dev, "parsing dt failed (%u)\n", ret); + dev_err(&pdev->dev, "parsing dt failed (%d)\n", ret); goto unreg_clk; } diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 18957fea82ff..e1721ac37919 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -347,8 +347,7 @@ static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot) static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot) { slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE; - slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC | - MMC_CAP2_HC_ERASE_SZ; + slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC; return 0; } @@ -542,6 +541,23 @@ static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode, } } +#define INTEL_HS400_ES_REG 0x78 +#define INTEL_HS400_ES_BIT BIT(0) + +static void intel_hs400_enhanced_strobe(struct mmc_host *mmc, + struct mmc_ios *ios) +{ + struct sdhci_host *host = mmc_priv(mmc); + u32 val; + + val = sdhci_readl(host, INTEL_HS400_ES_REG); + if (ios->enhanced_strobe) + val |= INTEL_HS400_ES_BIT; + else + val &= ~INTEL_HS400_ES_BIT; + sdhci_writel(host, val, INTEL_HS400_ES_REG); +} + static const struct sdhci_ops sdhci_intel_byt_ops = { .set_clock = sdhci_set_clock, .set_power = sdhci_intel_set_power, @@ -569,7 +585,6 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot) MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR | MMC_CAP_CMD_DURING_TFR | MMC_CAP_WAIT_WHILE_BUSY; - slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ; slot->hw_reset = sdhci_pci_int_hw_reset; if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC) slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */ @@ -578,6 +593,19 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot) return 0; } +static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot) +{ + int ret = byt_emmc_probe_slot(slot); + + if (slot->chip->pdev->device != PCI_DEVICE_ID_INTEL_GLK_EMMC) { + slot->host->mmc->caps2 |= MMC_CAP2_HS400_ES, + slot->host->mmc_host_ops.hs400_enhanced_strobe = + intel_hs400_enhanced_strobe; + } + + return ret; +} + #ifdef CONFIG_ACPI static int ni_set_max_freq(struct sdhci_pci_slot *slot) { @@ -630,7 +658,7 @@ static int byt_sd_probe_slot(struct sdhci_pci_slot *slot) { byt_read_dsm(slot); slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | - MMC_CAP_AGGRESSIVE_PM; + MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE; slot->cd_idx = 0; slot->cd_override_level = true; if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD || @@ -653,6 +681,17 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { .priv_size = sizeof(struct intel_host), }; +static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = { + .allow_runtime_pm = true, + .probe_slot = glk_emmc_probe_slot, + .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 | + SDHCI_QUIRK2_STOP_WITH_TC, + .ops = &sdhci_intel_byt_ops, + .priv_size = sizeof(struct intel_host), +}; + static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = { .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON | @@ -1170,554 +1209,79 @@ static const struct sdhci_pci_fixes sdhci_amd = { }; static const struct pci_device_id pci_ids[] = { - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = PCI_DEVICE_ID_RICOH_R5C822, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0x843, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0xe822, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_RICOH, - .device = 0xe823, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB712_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_712, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB712_SD_2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_712, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB714_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_714, - }, - - { - .vendor = PCI_VENDOR_ID_ENE, - .device = PCI_DEVICE_ID_ENE_CB714_SD_2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_ene_714, - }, - - { - .vendor = PCI_VENDOR_ID_MARVELL, - .device = PCI_DEVICE_ID_MARVELL_88ALP01_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_cafe, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB38X_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB388_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_JMICRON, - .device = PCI_DEVICE_ID_JMICRON_JMB388_ESD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_jmicron, - }, - - { - .vendor = PCI_VENDOR_ID_SYSKONNECT, - .device = 0x8000, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_syskt, - }, - - { - .vendor = PCI_VENDOR_ID_VIA, - .device = 0x95d0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_via, - }, - - { - .vendor = PCI_VENDOR_ID_REALTEK, - .device = 0x5250, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_rtsx, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_QRK_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_qrk, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRST_SD2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SDIO1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_SDIO2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_EMMC0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MFD_EMMC1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_PCH_SDIO0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_PCH_SDIO1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BYT_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BYT_SDIO, - .subvendor = PCI_VENDOR_ID_NI, - .subdevice = 0x7884, - .driver_data = (kernel_ulong_t)&sdhci_ni_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BYT_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BYT_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BYT_EMMC2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BSW_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BSW_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BSW_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_CLV_SDIO0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_CLV_SDIO1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_CLV_SDIO2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_CLV_EMMC0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_CLV_EMMC1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_MRFLD_MMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_mrfld_mmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_SPT_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_SPT_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_SPT_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_DNV_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXT_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXT_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXT_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXTM_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXTM_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_BXTM_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_APL_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_APL_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_APL_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_GLK_EMMC, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_GLK_SDIO, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, - }, - - { - .vendor = PCI_VENDOR_ID_INTEL, - .device = PCI_DEVICE_ID_INTEL_GLK_SD, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8120, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8220, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8221, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8320, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_8321, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_FUJIN2, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_SDS0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_SDS1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_SEABIRD0, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - - { - .vendor = PCI_VENDOR_ID_O2, - .device = PCI_DEVICE_ID_O2_SEABIRD1, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_o2, - }, - { - .vendor = PCI_VENDOR_ID_AMD, - .device = PCI_ANY_ID, - .class = PCI_CLASS_SYSTEM_SDHCI << 8, - .class_mask = 0xFFFF00, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = (kernel_ulong_t)&sdhci_amd, - }, - { /* Generic SD host controller */ - PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00) - }, - + SDHCI_PCI_DEVICE(RICOH, R5C822, ricoh), + SDHCI_PCI_DEVICE(RICOH, R5C843, ricoh_mmc), + SDHCI_PCI_DEVICE(RICOH, R5CE822, ricoh_mmc), + SDHCI_PCI_DEVICE(RICOH, R5CE823, ricoh_mmc), + SDHCI_PCI_DEVICE(ENE, CB712_SD, ene_712), + SDHCI_PCI_DEVICE(ENE, CB712_SD_2, ene_712), + SDHCI_PCI_DEVICE(ENE, CB714_SD, ene_714), + SDHCI_PCI_DEVICE(ENE, CB714_SD_2, ene_714), + SDHCI_PCI_DEVICE(MARVELL, 88ALP01_SD, cafe), + SDHCI_PCI_DEVICE(JMICRON, JMB38X_SD, jmicron), + SDHCI_PCI_DEVICE(JMICRON, JMB38X_MMC, jmicron), + SDHCI_PCI_DEVICE(JMICRON, JMB388_SD, jmicron), + SDHCI_PCI_DEVICE(JMICRON, JMB388_ESD, jmicron), + SDHCI_PCI_DEVICE(SYSKONNECT, 8000, syskt), + SDHCI_PCI_DEVICE(VIA, 95D0, via), + SDHCI_PCI_DEVICE(REALTEK, 5250, rtsx), + SDHCI_PCI_DEVICE(INTEL, QRK_SD, intel_qrk), + SDHCI_PCI_DEVICE(INTEL, MRST_SD0, intel_mrst_hc0), + SDHCI_PCI_DEVICE(INTEL, MRST_SD1, intel_mrst_hc1_hc2), + SDHCI_PCI_DEVICE(INTEL, MRST_SD2, intel_mrst_hc1_hc2), + SDHCI_PCI_DEVICE(INTEL, MFD_SD, intel_mfd_sd), + SDHCI_PCI_DEVICE(INTEL, MFD_SDIO1, intel_mfd_sdio), + SDHCI_PCI_DEVICE(INTEL, MFD_SDIO2, intel_mfd_sdio), + SDHCI_PCI_DEVICE(INTEL, MFD_EMMC0, intel_mfd_emmc), + SDHCI_PCI_DEVICE(INTEL, MFD_EMMC1, intel_mfd_emmc), + SDHCI_PCI_DEVICE(INTEL, PCH_SDIO0, intel_pch_sdio), + SDHCI_PCI_DEVICE(INTEL, PCH_SDIO1, intel_pch_sdio), + SDHCI_PCI_DEVICE(INTEL, BYT_EMMC, intel_byt_emmc), + SDHCI_PCI_SUBDEVICE(INTEL, BYT_SDIO, NI, 7884, ni_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, BYT_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, BYT_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, BYT_EMMC2, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, BSW_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, BSW_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, BSW_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, CLV_SDIO0, intel_mfd_sd), + SDHCI_PCI_DEVICE(INTEL, CLV_SDIO1, intel_mfd_sdio), + SDHCI_PCI_DEVICE(INTEL, CLV_SDIO2, intel_mfd_sdio), + SDHCI_PCI_DEVICE(INTEL, CLV_EMMC0, intel_mfd_emmc), + SDHCI_PCI_DEVICE(INTEL, CLV_EMMC1, intel_mfd_emmc), + SDHCI_PCI_DEVICE(INTEL, MRFLD_MMC, intel_mrfld_mmc), + SDHCI_PCI_DEVICE(INTEL, SPT_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, SPT_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, SPT_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, DNV_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, BXT_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, BXT_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, BXT_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, BXTM_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, BXTM_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, BXTM_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, APL_EMMC, intel_byt_emmc), + SDHCI_PCI_DEVICE(INTEL, APL_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, APL_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, GLK_EMMC, intel_glk_emmc), + SDHCI_PCI_DEVICE(INTEL, GLK_SDIO, intel_byt_sdio), + SDHCI_PCI_DEVICE(INTEL, GLK_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, CNP_EMMC, intel_glk_emmc), + SDHCI_PCI_DEVICE(INTEL, CNP_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(INTEL, CNPH_SD, intel_byt_sd), + SDHCI_PCI_DEVICE(O2, 8120, o2), + SDHCI_PCI_DEVICE(O2, 8220, o2), + SDHCI_PCI_DEVICE(O2, 8221, o2), + SDHCI_PCI_DEVICE(O2, 8320, o2), + SDHCI_PCI_DEVICE(O2, 8321, o2), + SDHCI_PCI_DEVICE(O2, FUJIN2, o2), + SDHCI_PCI_DEVICE(O2, SDS0, o2), + SDHCI_PCI_DEVICE(O2, SDS1, o2), + SDHCI_PCI_DEVICE(O2, SEABIRD0, o2), + SDHCI_PCI_DEVICE(O2, SEABIRD1, o2), + SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd), + /* Generic SD host controller */ + {PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)}, { /* end: all zeroes */ }, }; diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index 37766d20a600..75196a2b5289 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -2,7 +2,7 @@ #define __SDHCI_PCI_H /* - * PCI device IDs + * PCI device IDs, sub IDs */ #define PCI_DEVICE_ID_INTEL_PCH_SDIO0 0x8809 @@ -37,6 +37,50 @@ #define PCI_DEVICE_ID_INTEL_GLK_SD 0x31ca #define PCI_DEVICE_ID_INTEL_GLK_EMMC 0x31cc #define PCI_DEVICE_ID_INTEL_GLK_SDIO 0x31d0 +#define PCI_DEVICE_ID_INTEL_CNP_EMMC 0x9dc4 +#define PCI_DEVICE_ID_INTEL_CNP_SD 0x9df5 +#define PCI_DEVICE_ID_INTEL_CNPH_SD 0xa375 + +#define PCI_DEVICE_ID_SYSKONNECT_8000 0x8000 +#define PCI_DEVICE_ID_VIA_95D0 0x95d0 +#define PCI_DEVICE_ID_REALTEK_5250 0x5250 + +#define PCI_SUBDEVICE_ID_NI_7884 0x7884 + +/* + * PCI device class and mask + */ + +#define SYSTEM_SDHCI (PCI_CLASS_SYSTEM_SDHCI << 8) +#define PCI_CLASS_MASK 0xFFFF00 + +/* + * Macros for PCI device-description + */ + +#define _PCI_VEND(vend) PCI_VENDOR_ID_##vend +#define _PCI_DEV(vend, dev) PCI_DEVICE_ID_##vend##_##dev +#define _PCI_SUBDEV(subvend, subdev) PCI_SUBDEVICE_ID_##subvend##_##subdev + +#define SDHCI_PCI_DEVICE(vend, dev, cfg) { \ + .vendor = _PCI_VEND(vend), .device = _PCI_DEV(vend, dev), \ + .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \ + .driver_data = (kernel_ulong_t)&(sdhci_##cfg) \ +} + +#define SDHCI_PCI_SUBDEVICE(vend, dev, subvend, subdev, cfg) { \ + .vendor = _PCI_VEND(vend), .device = _PCI_DEV(vend, dev), \ + .subvendor = _PCI_VEND(subvend), \ + .subdevice = _PCI_SUBDEV(subvend, subdev), \ + .driver_data = (kernel_ulong_t)&(sdhci_##cfg) \ +} + +#define SDHCI_PCI_DEVICE_CLASS(vend, cl, cl_msk, cfg) { \ + .vendor = _PCI_VEND(vend), .device = PCI_ANY_ID, \ + .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \ + .class = (cl), .class_mask = (cl_msk), \ + .driver_data = (kernel_ulong_t)&(sdhci_##cfg) \ +} /* * PCI registers diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c index 5ff26ab81eb1..70cb00aa79a0 100644 --- a/drivers/mmc/host/sdricoh_cs.c +++ b/drivers/mmc/host/sdricoh_cs.c @@ -256,9 +256,6 @@ static int sdricoh_blockio(struct sdricoh_host *host, int read, } } - if (len) - return -EIO; - return 0; } diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index e897e7fc3b14..64b7e9f18361 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -1,16 +1,16 @@ /* - * linux/drivers/mmc/host/tmio_mmc.c + * Driver for the MMC / SD / SDIO cell found in: + * + * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3 * + * Copyright (C) 2017 Renesas Electronics Corporation + * Copyright (C) 2017 Horms Solutions, Simon Horman * Copyright (C) 2007 Ian Molton * Copyright (C) 2004 Ian Molton * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. - * - * Driver for the MMC / SD / SDIO cell found in: - * - * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3 */ #include <linux/device.h> @@ -99,13 +99,13 @@ static int tmio_mmc_probe(struct platform_device *pdev) /* SD control register space size is 0x200, 0x400 for bus_shift=1 */ host->bus_shift = resource_size(res) >> 10; - ret = tmio_mmc_host_probe(host, pdata); + ret = tmio_mmc_host_probe(host, pdata, NULL); if (ret) goto host_free; ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, - IRQF_TRIGGER_FALLING, - dev_name(&pdev->dev), host); + IRQF_TRIGGER_FALLING, + dev_name(&pdev->dev), host); if (ret) goto host_remove; @@ -132,6 +132,7 @@ static int tmio_mmc_remove(struct platform_device *pdev) if (mmc) { struct tmio_mmc_host *host = mmc_priv(mmc); + tmio_mmc_host_remove(host); if (cell->disable) cell->disable(pdev); @@ -145,8 +146,7 @@ static int tmio_mmc_remove(struct platform_device *pdev) static const struct dev_pm_ops tmio_mmc_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(tmio_mmc_suspend, tmio_mmc_resume) SET_RUNTIME_PM_OPS(tmio_mmc_host_runtime_suspend, - tmio_mmc_host_runtime_resume, - NULL) + tmio_mmc_host_runtime_resume, NULL) }; static struct platform_driver tmio_mmc_driver = { diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index d0edb5730d3f..6ad6704175dc 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -1,8 +1,11 @@ /* - * linux/drivers/mmc/host/tmio_mmc.h + * Driver for the MMC / SD / SDIO cell found in: + * + * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3 * - * Copyright (C) 2016 Sang Engineering, Wolfram Sang - * Copyright (C) 2015-16 Renesas Electronics Corporation + * Copyright (C) 2015-17 Renesas Electronics Corporation + * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang + * Copyright (C) 2016-17 Horms Solutions, Simon Horman * Copyright (C) 2007 Ian Molton * Copyright (C) 2004 Ian Molton * @@ -10,9 +13,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * Driver for the MMC / SD / SDIO cell found in: - * - * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3 */ #ifndef TMIO_MMC_H @@ -115,6 +115,15 @@ struct tmio_mmc_dma { void (*enable)(struct tmio_mmc_host *host, bool enable); }; +struct tmio_mmc_dma_ops { + void (*start)(struct tmio_mmc_host *host, struct mmc_data *data); + void (*enable)(struct tmio_mmc_host *host, bool enable); + void (*request)(struct tmio_mmc_host *host, + struct tmio_mmc_data *pdata); + void (*release)(struct tmio_mmc_host *host); + void (*abort)(struct tmio_mmc_host *host); +}; + struct tmio_mmc_host { void __iomem *ctl; struct mmc_command *cmd; @@ -189,12 +198,15 @@ struct tmio_mmc_host { /* Tuning values: 1 for success, 0 for failure */ DECLARE_BITMAP(taps, BITS_PER_BYTE * sizeof(long)); unsigned int tap_num; + + const struct tmio_mmc_dma_ops *dma_ops; }; struct tmio_mmc_host *tmio_mmc_host_alloc(struct platform_device *pdev); void tmio_mmc_host_free(struct tmio_mmc_host *host); int tmio_mmc_host_probe(struct tmio_mmc_host *host, - struct tmio_mmc_data *pdata); + struct tmio_mmc_data *pdata, + const struct tmio_mmc_dma_ops *dma_ops); void tmio_mmc_host_remove(struct tmio_mmc_host *host); void tmio_mmc_do_data_irq(struct tmio_mmc_host *host); @@ -216,38 +228,6 @@ static inline void tmio_mmc_kunmap_atomic(struct scatterlist *sg, local_irq_restore(*flags); } -#if defined(CONFIG_MMC_SDHI) || defined(CONFIG_MMC_SDHI_MODULE) -void tmio_mmc_start_dma(struct tmio_mmc_host *host, struct mmc_data *data); -void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable); -void tmio_mmc_request_dma(struct tmio_mmc_host *host, struct tmio_mmc_data *pdata); -void tmio_mmc_release_dma(struct tmio_mmc_host *host); -void tmio_mmc_abort_dma(struct tmio_mmc_host *host); -#else -static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host, - struct mmc_data *data) -{ -} - -static inline void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable) -{ -} - -static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host, - struct tmio_mmc_data *pdata) -{ - host->chan_tx = NULL; - host->chan_rx = NULL; -} - -static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host) -{ -} - -static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host) -{ -} -#endif - #ifdef CONFIG_PM int tmio_mmc_host_runtime_suspend(struct device *dev); int tmio_mmc_host_runtime_resume(struct device *dev); @@ -259,24 +239,26 @@ static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr) } static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr, - u16 *buf, int count) + u16 *buf, int count) { readsw(host->ctl + (addr << host->bus_shift), buf, count); } -static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host, int addr) +static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host, + int addr) { return readw(host->ctl + (addr << host->bus_shift)) | readw(host->ctl + ((addr + 2) << host->bus_shift)) << 16; } static inline void sd_ctrl_read32_rep(struct tmio_mmc_host *host, int addr, - u32 *buf, int count) + u32 *buf, int count) { readsl(host->ctl + (addr << host->bus_shift), buf, count); } -static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val) +static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, + u16 val) { /* If there is a hook and it returns non-zero then there * is an error and the write should be skipped @@ -287,19 +269,20 @@ static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr, u16 val } static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr, - u16 *buf, int count) + u16 *buf, int count) { writesw(host->ctl + (addr << host->bus_shift), buf, count); } -static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host, int addr, u32 val) +static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host, + int addr, u32 val) { writew(val & 0xffff, host->ctl + (addr << host->bus_shift)); writew(val >> 16, host->ctl + ((addr + 2) << host->bus_shift)); } static inline void sd_ctrl_write32_rep(struct tmio_mmc_host *host, int addr, - const u32 *buf, int count) + const u32 *buf, int count) { writesl(host->ctl + (addr << host->bus_shift), buf, count); } diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_core.c index a2d92f10501b..82b80d42f7ae 100644 --- a/drivers/mmc/host/tmio_mmc_pio.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -1,8 +1,11 @@ /* - * linux/drivers/mmc/host/tmio_mmc_pio.c + * Driver for the MMC / SD / SDIO IP found in: + * + * TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs * - * Copyright (C) 2016 Sang Engineering, Wolfram Sang - * Copyright (C) 2015-16 Renesas Electronics Corporation + * Copyright (C) 2015-17 Renesas Electronics Corporation + * Copyright (C) 2016-17 Sang Engineering, Wolfram Sang + * Copyright (C) 2017 Horms Solutions, Simon Horman * Copyright (C) 2011 Guennadi Liakhovetski * Copyright (C) 2007 Ian Molton * Copyright (C) 2004 Ian Molton @@ -11,10 +14,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * - * Driver for the MMC / SD / SDIO IP found in: - * - * TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs - * * This driver draws mainly on scattered spec sheets, Reverse engineering * of the toshiba e800 SD driver and some parts of the 2.4 ASIC3 driver (4 bit * support). (Further 4 bit support from a later datasheet). @@ -52,17 +51,55 @@ #include "tmio_mmc.h" +static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host, + struct mmc_data *data) +{ + if (host->dma_ops) + host->dma_ops->start(host, data); +} + +static inline void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable) +{ + if (host->dma_ops) + host->dma_ops->enable(host, enable); +} + +static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host, + struct tmio_mmc_data *pdata) +{ + if (host->dma_ops) { + host->dma_ops->request(host, pdata); + } else { + host->chan_tx = NULL; + host->chan_rx = NULL; + } +} + +static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host) +{ + if (host->dma_ops) + host->dma_ops->release(host); +} + +static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host) +{ + if (host->dma_ops) + host->dma_ops->abort(host); +} + void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i) { host->sdcard_irq_mask &= ~(i & TMIO_MASK_IRQ); sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask); } +EXPORT_SYMBOL_GPL(tmio_mmc_enable_mmc_irqs); void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i) { host->sdcard_irq_mask |= (i & TMIO_MASK_IRQ); sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask); } +EXPORT_SYMBOL_GPL(tmio_mmc_disable_mmc_irqs); static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i) { @@ -90,16 +127,17 @@ static int tmio_mmc_next_sg(struct tmio_mmc_host *host) #define STATUS_TO_TEXT(a, status, i) \ do { \ - if (status & TMIO_STAT_##a) { \ - if (i++) \ - printk(" | "); \ - printk(#a); \ + if ((status) & TMIO_STAT_##a) { \ + if ((i)++) \ + printk(KERN_DEBUG " | "); \ + printk(KERN_DEBUG #a); \ } \ } while (0) static void pr_debug_status(u32 status) { int i = 0; + pr_debug("status: %08x = ", status); STATUS_TO_TEXT(CARD_REMOVE, status, i); STATUS_TO_TEXT(CARD_INSERT, status, i); @@ -140,8 +178,7 @@ static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable) pm_runtime_get_sync(mmc_dev(mmc)); host->sdio_irq_enabled = true; - host->sdio_irq_mask = TMIO_SDIO_MASK_ALL & - ~TMIO_SDIO_STAT_IOIRQ; + host->sdio_irq_mask = TMIO_SDIO_MASK_ALL & ~TMIO_SDIO_STAT_IOIRQ; /* Clear obsolete interrupts before enabling */ sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS) & ~TMIO_SDIO_MASK_ALL; @@ -185,7 +222,7 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host) } static void tmio_mmc_set_clock(struct tmio_mmc_host *host, - unsigned int new_clock) + unsigned int new_clock) { u32 clk = 0, clock; @@ -229,6 +266,12 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host) if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001); msleep(10); + + if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) { + sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask); + sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001); + } + } static void tmio_mmc_reset_work(struct work_struct *work) @@ -246,16 +289,16 @@ static void tmio_mmc_reset_work(struct work_struct *work) * cancel_delayed_work(), it can happen, that a .set_ios() call preempts * us, so, have to check for IS_ERR(host->mrq) */ - if (IS_ERR_OR_NULL(mrq) - || time_is_after_jiffies(host->last_req_ts + - msecs_to_jiffies(CMDREQ_TIMEOUT))) { + if (IS_ERR_OR_NULL(mrq) || + time_is_after_jiffies(host->last_req_ts + + msecs_to_jiffies(CMDREQ_TIMEOUT))) { spin_unlock_irqrestore(&host->lock, flags); return; } dev_warn(&host->pdev->dev, - "timeout waiting for hardware interrupt (CMD%u)\n", - mrq->cmd->opcode); + "timeout waiting for hardware interrupt (CMD%u)\n", + mrq->cmd->opcode); if (host->data) host->data->error = -ETIMEDOUT; @@ -279,45 +322,6 @@ static void tmio_mmc_reset_work(struct work_struct *work) mmc_request_done(host->mmc, mrq); } -/* called with host->lock held, interrupts disabled */ -static void tmio_mmc_finish_request(struct tmio_mmc_host *host) -{ - struct mmc_request *mrq; - unsigned long flags; - - spin_lock_irqsave(&host->lock, flags); - - mrq = host->mrq; - if (IS_ERR_OR_NULL(mrq)) { - spin_unlock_irqrestore(&host->lock, flags); - return; - } - - host->cmd = NULL; - host->data = NULL; - host->force_pio = false; - - cancel_delayed_work(&host->delayed_reset_work); - - host->mrq = NULL; - spin_unlock_irqrestore(&host->lock, flags); - - if (mrq->cmd->error || (mrq->data && mrq->data->error)) - tmio_mmc_abort_dma(host); - - if (host->check_scc_error) - host->check_scc_error(host); - - mmc_request_done(host->mmc, mrq); -} - -static void tmio_mmc_done_work(struct work_struct *work) -{ - struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host, - done); - tmio_mmc_finish_request(host); -} - /* These are the bitmasks the tmio chip requires to implement the MMC response * types. Note that R1 and R6 are the same in this scheme. */ #define APP_CMD 0x0040 @@ -332,7 +336,8 @@ static void tmio_mmc_done_work(struct work_struct *work) #define SECURITY_CMD 0x4000 #define NO_CMD12_ISSUE 0x4000 /* TMIO_MMC_HAVE_CMD12_CTRL */ -static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd) +static int tmio_mmc_start_command(struct tmio_mmc_host *host, + struct mmc_command *cmd) { struct mmc_data *data = host->data; int c = cmd->opcode; @@ -371,11 +376,11 @@ static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command c |= TRANSFER_MULTI; /* - * Disable auto CMD12 at IO_RW_EXTENDED when - * multiple block transfer + * Disable auto CMD12 at IO_RW_EXTENDED and + * SET_BLOCK_COUNT when doing multiple block transfer */ if ((host->pdata->flags & TMIO_MMC_HAVE_CMD12_CTRL) && - (cmd->opcode == SD_IO_RW_EXTENDED)) + (cmd->opcode == SD_IO_RW_EXTENDED || host->mrq->sbc)) c |= NO_CMD12_ISSUE; } if (data->flags & MMC_DATA_READ) @@ -497,8 +502,6 @@ static void tmio_mmc_pio_irq(struct tmio_mmc_host *host) if (host->sg_off == host->sg_ptr->length) tmio_mmc_next_sg(host); - - return; } static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host) @@ -506,6 +509,7 @@ static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host) if (host->sg_ptr == &host->bounce_sg) { unsigned long flags; void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags); + memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length); tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr); } @@ -552,7 +556,7 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host) host->mrq); } - if (stop) { + if (stop && !host->mrq->sbc) { if (stop->opcode != MMC_STOP_TRANSMISSION || stop->arg) dev_err(&host->pdev->dev, "unsupported stop: CMD%u,0x%x. We did CMD12,0\n", stop->opcode, stop->arg); @@ -565,10 +569,12 @@ void tmio_mmc_do_data_irq(struct tmio_mmc_host *host) schedule_work(&host->done); } +EXPORT_SYMBOL_GPL(tmio_mmc_do_data_irq); static void tmio_mmc_data_irq(struct tmio_mmc_host *host, unsigned int stat) { struct mmc_data *data; + spin_lock(&host->lock); data = host->data; @@ -613,8 +619,7 @@ out: spin_unlock(&host->lock); } -static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host, - unsigned int stat) +static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host, unsigned int stat) { struct mmc_command *cmd = host->cmd; int i, addr; @@ -675,7 +680,7 @@ out: } static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host, - int ireg, int status) + int ireg, int status) { struct mmc_host *mmc = host->mmc; @@ -693,14 +698,13 @@ static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host, return false; } -static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host, - int ireg, int status) +static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host, int ireg, + int status) { /* Command completion */ if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) { - tmio_mmc_ack_mmc_irqs(host, - TMIO_STAT_CMDRESPEND | - TMIO_STAT_CMDTIMEOUT); + tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_CMDRESPEND | + TMIO_STAT_CMDTIMEOUT); tmio_mmc_cmd_irq(host, status); return true; } @@ -768,10 +772,10 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid) return IRQ_HANDLED; } -EXPORT_SYMBOL(tmio_mmc_irq); +EXPORT_SYMBOL_GPL(tmio_mmc_irq); static int tmio_mmc_start_data(struct tmio_mmc_host *host, - struct mmc_data *data) + struct mmc_data *data) { struct tmio_mmc_data *pdata = host->pdata; @@ -826,7 +830,7 @@ static int tmio_mmc_execute_tuning(struct mmc_host *mmc, u32 opcode) if (host->tap_num * 2 >= sizeof(host->taps) * BITS_PER_BYTE) { dev_warn_once(&host->pdev->dev, - "Too many taps, skipping tuning. Please consider updating size of taps field of tmio_mmc_host\n"); + "Too many taps, skipping tuning. Please consider updating size of taps field of tmio_mmc_host\n"); goto out; } @@ -857,12 +861,43 @@ out: return ret; } +static void tmio_process_mrq(struct tmio_mmc_host *host, + struct mmc_request *mrq) +{ + struct mmc_command *cmd; + int ret; + + if (mrq->sbc && host->cmd != mrq->sbc) { + cmd = mrq->sbc; + } else { + cmd = mrq->cmd; + if (mrq->data) { + ret = tmio_mmc_start_data(host, mrq->data); + if (ret) + goto fail; + } + } + + ret = tmio_mmc_start_command(host, cmd); + if (ret) + goto fail; + + schedule_delayed_work(&host->delayed_reset_work, + msecs_to_jiffies(CMDREQ_TIMEOUT)); + return; + +fail: + host->force_pio = false; + host->mrq = NULL; + mrq->cmd->error = ret; + mmc_request_done(host->mmc, mrq); +} + /* Process requests from the MMC layer */ static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) { struct tmio_mmc_host *host = mmc_priv(mmc); unsigned long flags; - int ret; spin_lock_irqsave(&host->lock, flags); @@ -882,24 +917,54 @@ static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) spin_unlock_irqrestore(&host->lock, flags); - if (mrq->data) { - ret = tmio_mmc_start_data(host, mrq->data); - if (ret) - goto fail; + tmio_process_mrq(host, mrq); +} + +static void tmio_mmc_finish_request(struct tmio_mmc_host *host) +{ + struct mmc_request *mrq; + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + + mrq = host->mrq; + if (IS_ERR_OR_NULL(mrq)) { + spin_unlock_irqrestore(&host->lock, flags); + return; + } + + /* If not SET_BLOCK_COUNT, clear old data */ + if (host->cmd != mrq->sbc) { + host->cmd = NULL; + host->data = NULL; + host->force_pio = false; + host->mrq = NULL; } - ret = tmio_mmc_start_command(host, mrq->cmd); - if (!ret) { - schedule_delayed_work(&host->delayed_reset_work, - msecs_to_jiffies(CMDREQ_TIMEOUT)); + cancel_delayed_work(&host->delayed_reset_work); + + spin_unlock_irqrestore(&host->lock, flags); + + if (mrq->cmd->error || (mrq->data && mrq->data->error)) + tmio_mmc_abort_dma(host); + + if (host->check_scc_error) + host->check_scc_error(host); + + /* If SET_BLOCK_COUNT, continue with main command */ + if (host->mrq) { + tmio_process_mrq(host, mrq); return; } -fail: - host->force_pio = false; - host->mrq = NULL; - mrq->cmd->error = ret; - mmc_request_done(mmc, mrq); + mmc_request_done(host->mmc, mrq); +} + +static void tmio_mmc_done_work(struct work_struct *work) +{ + struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host, + done); + tmio_mmc_finish_request(host); } static int tmio_mmc_clk_enable(struct tmio_mmc_host *host) @@ -965,7 +1030,7 @@ static void tmio_mmc_power_off(struct tmio_mmc_host *host) } static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host, - unsigned char bus_width) + unsigned char bus_width) { u16 reg = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT) & ~(CARD_OPT_WIDTH | CARD_OPT_WIDTH8); @@ -1005,7 +1070,8 @@ static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) dev_dbg(dev, "%s.%d: CMD%u active since %lu, now %lu!\n", current->comm, task_pid_nr(current), - host->mrq->cmd->opcode, host->last_req_ts, jiffies); + host->mrq->cmd->opcode, host->last_req_ts, + jiffies); } spin_unlock_irqrestore(&host->lock, flags); @@ -1052,6 +1118,7 @@ static int tmio_mmc_get_ro(struct mmc_host *mmc) struct tmio_mmc_host *host = mmc_priv(mmc); struct tmio_mmc_data *pdata = host->pdata; int ret = mmc_gpio_get_ro(mmc); + if (ret >= 0) return ret; @@ -1108,6 +1175,7 @@ static void tmio_mmc_of_parse(struct platform_device *pdev, struct tmio_mmc_data *pdata) { const struct device_node *np = pdev->dev.of_node; + if (!np) return; @@ -1131,16 +1199,17 @@ tmio_mmc_host_alloc(struct platform_device *pdev) return host; } -EXPORT_SYMBOL(tmio_mmc_host_alloc); +EXPORT_SYMBOL_GPL(tmio_mmc_host_alloc); void tmio_mmc_host_free(struct tmio_mmc_host *host) { mmc_free_host(host->mmc); } -EXPORT_SYMBOL(tmio_mmc_host_free); +EXPORT_SYMBOL_GPL(tmio_mmc_host_free); int tmio_mmc_host_probe(struct tmio_mmc_host *_host, - struct tmio_mmc_data *pdata) + struct tmio_mmc_data *pdata, + const struct tmio_mmc_dma_ops *dma_ops) { struct platform_device *pdev = _host->pdev; struct mmc_host *mmc = _host->mmc; @@ -1177,7 +1246,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, return -ENOMEM; tmio_mmc_ops.card_busy = _host->card_busy; - tmio_mmc_ops.start_signal_voltage_switch = _host->start_signal_voltage_switch; + tmio_mmc_ops.start_signal_voltage_switch = + _host->start_signal_voltage_switch; mmc->ops = &tmio_mmc_ops; mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities; @@ -1221,6 +1291,10 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, if (_host->native_hotplug) pm_runtime_get_noresume(&pdev->dev); + _host->sdio_irq_enabled = false; + if (pdata->flags & TMIO_MMC_SDIO_IRQ) + _host->sdio_irq_mask = TMIO_SDIO_MASK_ALL; + tmio_mmc_clk_stop(_host); tmio_mmc_reset(_host); @@ -1237,13 +1311,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, _host->sdcard_irq_mask &= ~irq_mask; - _host->sdio_irq_enabled = false; - if (pdata->flags & TMIO_MMC_SDIO_IRQ) { - _host->sdio_irq_mask = TMIO_SDIO_MASK_ALL; - sd_ctrl_write16(_host, CTL_SDIO_IRQ_MASK, _host->sdio_irq_mask); - sd_ctrl_write16(_host, CTL_TRANSACTION_CTL, 0x0001); - } - spin_lock_init(&_host->lock); mutex_init(&_host->ios_lock); @@ -1252,6 +1319,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, INIT_WORK(&_host->done, tmio_mmc_done_work); /* See if we also get DMA */ + _host->dma_ops = dma_ops; tmio_mmc_request_dma(_host, pdata); pm_runtime_set_active(&pdev->dev); @@ -1278,7 +1346,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, return 0; } -EXPORT_SYMBOL(tmio_mmc_host_probe); +EXPORT_SYMBOL_GPL(tmio_mmc_host_probe); void tmio_mmc_host_remove(struct tmio_mmc_host *host) { @@ -1303,7 +1371,7 @@ void tmio_mmc_host_remove(struct tmio_mmc_host *host) tmio_mmc_clk_disable(host); } -EXPORT_SYMBOL(tmio_mmc_host_remove); +EXPORT_SYMBOL_GPL(tmio_mmc_host_remove); #ifdef CONFIG_PM int tmio_mmc_host_runtime_suspend(struct device *dev) @@ -1320,7 +1388,7 @@ int tmio_mmc_host_runtime_suspend(struct device *dev) return 0; } -EXPORT_SYMBOL(tmio_mmc_host_runtime_suspend); +EXPORT_SYMBOL_GPL(tmio_mmc_host_runtime_suspend); static bool tmio_mmc_can_retune(struct tmio_mmc_host *host) { @@ -1345,7 +1413,7 @@ int tmio_mmc_host_runtime_resume(struct device *dev) return 0; } -EXPORT_SYMBOL(tmio_mmc_host_runtime_resume); +EXPORT_SYMBOL_GPL(tmio_mmc_host_runtime_resume); #endif MODULE_LICENSE("GPL v2"); diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c index c061e7c704be..fbeea1a491a6 100644 --- a/drivers/mmc/host/vub300.c +++ b/drivers/mmc/host/vub300.c @@ -2107,7 +2107,8 @@ static int vub300_probe(struct usb_interface *interface, usb_string(udev, udev->descriptor.iSerialNumber, serial_number, sizeof(serial_number)); dev_info(&udev->dev, "probing VID:PID(%04X:%04X) %s %s %s\n", - udev->descriptor.idVendor, udev->descriptor.idProduct, + le16_to_cpu(udev->descriptor.idVendor), + le16_to_cpu(udev->descriptor.idProduct), manufacturer, product, serial_number); command_out_urb = usb_alloc_urb(0, GFP_KERNEL); if (!command_out_urb) { diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index a1520d88ebf3..26e8f8c0a6db 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -13,15 +13,15 @@ #define tmio_ioread16(addr) readw(addr) #define tmio_ioread16_rep(r, b, l) readsw(r, b, l) #define tmio_ioread32(addr) \ - (((u32) readw((addr))) | (((u32) readw((addr) + 2)) << 16)) + (((u32)readw((addr))) | (((u32)readw((addr) + 2)) << 16)) #define tmio_iowrite8(val, addr) writeb((val), (addr)) #define tmio_iowrite16(val, addr) writew((val), (addr)) #define tmio_iowrite16_rep(r, b, l) writesw(r, b, l) #define tmio_iowrite32(val, addr) \ do { \ - writew((val), (addr)); \ - writew((val) >> 16, (addr) + 2); \ + writew((val), (addr)); \ + writew((val) >> 16, (addr) + 2); \ } while (0) #define CNF_CMD 0x04 @@ -55,57 +55,57 @@ } while (0) /* tmio MMC platform flags */ -#define TMIO_MMC_WRPROTECT_DISABLE (1 << 0) +#define TMIO_MMC_WRPROTECT_DISABLE BIT(0) /* * Some controllers can support a 2-byte block size when the bus width * is configured in 4-bit mode. */ -#define TMIO_MMC_BLKSZ_2BYTES (1 << 1) +#define TMIO_MMC_BLKSZ_2BYTES BIT(1) /* * Some controllers can support SDIO IRQ signalling. */ -#define TMIO_MMC_SDIO_IRQ (1 << 2) +#define TMIO_MMC_SDIO_IRQ BIT(2) -/* Some features are only available or tested on RCar Gen2 or later */ -#define TMIO_MMC_MIN_RCAR2 (1 << 3) +/* Some features are only available or tested on R-Car Gen2 or later */ +#define TMIO_MMC_MIN_RCAR2 BIT(3) /* * Some controllers require waiting for the SD bus to become * idle before writing to some registers. */ -#define TMIO_MMC_HAS_IDLE_WAIT (1 << 4) +#define TMIO_MMC_HAS_IDLE_WAIT BIT(4) /* * A GPIO is used for card hotplug detection. We need an extra flag for this, * because 0 is a valid GPIO number too, and requiring users to specify * cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility. */ -#define TMIO_MMC_USE_GPIO_CD (1 << 5) +#define TMIO_MMC_USE_GPIO_CD BIT(5) /* * Some controllers doesn't have over 0x100 register. * it is used to checking accessibility of * CTL_SD_CARD_CLK_CTL / CTL_CLK_AND_WAIT_CTL */ -#define TMIO_MMC_HAVE_HIGH_REG (1 << 6) +#define TMIO_MMC_HAVE_HIGH_REG BIT(6) /* * Some controllers have CMD12 automatically * issue/non-issue register */ -#define TMIO_MMC_HAVE_CMD12_CTRL (1 << 7) +#define TMIO_MMC_HAVE_CMD12_CTRL BIT(7) /* Controller has some SDIO status bits which must be 1 */ -#define TMIO_MMC_SDIO_STATUS_SETBITS (1 << 8) +#define TMIO_MMC_SDIO_STATUS_SETBITS BIT(8) /* * Some controllers have a 32-bit wide data port register */ -#define TMIO_MMC_32BIT_DATA_PORT (1 << 9) +#define TMIO_MMC_32BIT_DATA_PORT BIT(9) /* * Some controllers allows to set SDx actual clock */ -#define TMIO_MMC_CLK_ACTUAL (1 << 10) +#define TMIO_MMC_CLK_ACTUAL BIT(10) int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base); int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base); @@ -146,9 +146,9 @@ struct tmio_nand_data { struct tmio_fb_data { int (*lcd_set_power)(struct platform_device *fb_dev, - bool on); + bool on); int (*lcd_mode)(struct platform_device *fb_dev, - const struct fb_videomode *mode); + const struct fb_videomode *mode); int num_modes; struct fb_videomode *modes; @@ -157,5 +157,4 @@ struct tmio_fb_data { int width; }; - #endif diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index aad015e0152b..46c73e97e61f 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -305,9 +305,7 @@ struct mmc_card { struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */ unsigned int nr_parts; - struct mmc_queue_req *mqrq; /* Shared queue structure */ unsigned int bouncesz; /* Bounce buffer size */ - int qdepth; /* Shared queue depth */ }; static inline bool mmc_large_sector(struct mmc_card *card) diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 21385ac0c9b1..ebd1cebbef0c 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -130,6 +130,7 @@ struct mmc_host_ops { int (*get_cd)(struct mmc_host *host); void (*enable_sdio_irq)(struct mmc_host *host, int enable); + void (*ack_sdio_irq)(struct mmc_host *host); /* optional callback for HC quirks */ void (*init_card)(struct mmc_host *host, struct mmc_card *card); @@ -184,6 +185,7 @@ struct mmc_async_req { */ struct mmc_slot { int cd_irq; + bool cd_wake_enabled; void *handler_priv; }; @@ -270,9 +272,11 @@ struct mmc_host { #define MMC_CAP_UHS_SDR50 (1 << 18) /* Host supports UHS SDR50 mode */ #define MMC_CAP_UHS_SDR104 (1 << 19) /* Host supports UHS SDR104 mode */ #define MMC_CAP_UHS_DDR50 (1 << 20) /* Host supports UHS DDR50 mode */ +#define MMC_CAP_NO_BOUNCE_BUFF (1 << 21) /* Disable bounce buffers on host */ #define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ #define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ #define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ +#define MMC_CAP_CD_WAKE (1 << 28) /* Enable card detect wake */ #define MMC_CAP_CMD_DURING_TFR (1 << 29) /* Commands during data transfer */ #define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */ #define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */ @@ -285,7 +289,6 @@ struct mmc_host { #define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */ #define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \ MMC_CAP2_HS200_1_2V_SDR) -#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */ #define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10) /* Card-detect signal active high */ #define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11) /* Write-protect signal active high */ #define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */ @@ -358,6 +361,7 @@ struct mmc_host { unsigned int sdio_irqs; struct task_struct *sdio_irq_thread; + struct delayed_work sdio_irq_work; bool sdio_irq_pending; atomic_t sdio_irq_thread_abort; @@ -428,6 +432,7 @@ static inline void mmc_signal_sdio_irq(struct mmc_host *host) } void sdio_run_irqs(struct mmc_host *host); +void sdio_signal_irq(struct mmc_host *host); #ifdef CONFIG_REGULATOR int mmc_regulator_get_ocrmask(struct regulator *supply); |