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2022-03-07mmc: core: Restore (almost) the busy polling for MMC_SEND_OP_CONDUlf Hansson5-8/+14
Commit 76bfc7ccc2fa ("mmc: core: adjust polling interval for CMD1"), significantly decreased the polling period from ~10-12ms into just a couple of us. The purpose was to decrease the total time spent in the busy polling loop, but unfortunate it has lead to problems, that causes eMMC cards to never gets out busy and thus fails to be initialized. To fix the problem, but also to try to keep some of the new improved behaviour, let's start by using a polling period of 1-2ms, which then increases for each loop, according to common polling loop in __mmc_poll_for_busy(). Reported-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de> Reported-by: H. Nikolaus Schaller <hns@goldelico.com> Cc: Huijin Park <huijin.park@samsung.com> Fixes: 76bfc7ccc2fa ("mmc: core: adjust polling interval for CMD1") Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Jean Rene Dawin <jdawin@math.uni-bielefeld.de> Tested-by: H. Nikolaus Schaller <hns@goldelico.com> Link: https://lore.kernel.org/r/20220304105656.149281-1-ulf.hansson@linaro.org
2022-03-02mmc: rtsx: add 74 Clocks in power on flowRicky WU1-10/+19
SD spec definition: "Host provides at least 74 Clocks before issuing first command" After 1ms for the voltage stable then start issuing the Clock signals if POWER STATE is MMC_POWER_OFF to MMC_POWER_UP to issue Clock signal to card MMC_POWER_UP to MMC_POWER_ON to stop issuing signal to card Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Link: https://lore.kernel.org/r/1badf10aba764191a1a752edcbf90389@realtek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-03-01dt-bindings: mmc: renesas,sdhi: Document RZ/V2L SoCLad Prabhakar1-1/+4
Document RZ/V2L SDHI bindings. RZ/V2L SDHI is almost identical to one found on the R-Car Gen3. No driver changes are required as generic compatible string "renesas,rcar-gen3-sdhi" will be used as a fallback. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/20220227212330.22262-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sh_mmcif: Simplify division/shift logicGeert Uytterhoeven1-4/+3
"a / (1 << b)" == "a >> b". No change in generated code. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/68d689c39c769d298b53ee8cb9de0e594a2999b2.1645460780.git.geert+renesas@glider.be Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci_am654: Add Support for TI's AM62 SoCAswath Govindraju1-0/+4
Add support for the controller present on the AM62x SoC. There are instances: sdhci0: 8bit bus width, max 200 MBps sdhci1: 4bit bus width, max 100 MBps sdhci2: 4bit bus width, max 100 MBps The PHY used for 8 bit instance is same as the PHY for the 4 bit instance. Therefore, introduce a new bus width independent compatible for AM62 SoC that uses the driver data required for 4 bit instance. Signed-off-by: Aswath Govindraju <a-govindraju@ti.com> Link: https://lore.kernel.org/r/20220218072840.5629-1-a-govindraju@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: meson: Fix usage of meson_mmc_post_req()Rong Chen1-7/+8
Currently meson_mmc_post_req() is called in meson_mmc_request() right after meson_mmc_start_cmd(). This could lead to DMA unmapping before the request is actually finished. To fix, don't call meson_mmc_post_req() until meson_mmc_request_done(). Signed-off-by: Rong Chen <rong.chen@amlogic.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Fixes: 79ed05e329c3 ("mmc: meson-gx: add support for descriptor chain mode") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220216124239.4007667-1-rong.chen@amlogic.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28dt-bindings: mmc: imx-esdhc: Add imx93 compatible stringPeng Fan1-0/+1
Add i.MX93 compatible string, it uses two compatible strings. Signed-off-by: Peng Fan <peng.fan@nxp.com> Link: https://lore.kernel.org/r/20220215081502.789067-1-peng.fan@oss.nxp.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28dt-bindings: mmc: sdhci-am654: Add compatible string for AM62 SoCAswath Govindraju1-0/+1
Add compatible string for AM62 SoC in device tree binding of AM654 SDHCI module as the same IP is used. Signed-off-by: Aswath Govindraju <a-govindraju@ti.com> Link: https://lore.kernel.org/r/20220216134346.11029-1-a-govindraju@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci_am654: Fix the driver data of AM64 SoCAswath Govindraju1-22/+2
The MMCSD IPs used in AM64 are the same as the ones used in J721E. Therefore, fix this by using the driver data from J721E for AM64 too, for both 8 and 4 bit instances. Fixes: 754b7f2f7d2a ("mmc: sdhci_am654: Add Support for TI's AM64 SoC") Signed-off-by: Aswath Govindraju <a-govindraju@ti.com> Link: https://lore.kernel.org/r/20220211075056.26179-1-a-govindraju@ti.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: core: use sysfs_emit() instead of sprintf()Sergey Shtylyov6-31/+34
sprintf() (still used in the MMC core for the sysfs output) is vulnerable to the buffer overflow. Use the new-fangled sysfs_emit() instead. Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool. Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/717729b2-d65b-c72e-9fac-471d28d00b5a@omp.ru Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sunxi-mmc: Add D1 MMC variantSamuel Holland1-0/+9
D1's MMC controllers are unique in that they have the DMA address shift (like A100) with a 13-bit descriptor size field (like sun4i). Add the compatible and parameters for this new variant. Signed-off-by: Samuel Holland <samuel@sholland.org> Acked-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220203015112.12008-2-samuel@sholland.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28dt-bindings: mmc: sunxi: Add D1 MMC and eMMC compatiblesSamuel Holland1-0/+4
D1 contains variants of the usual sunxi MMC controller. The eMMC controller has the same parameters as the A100 eMMC controller. The other controllers have a DMA address shift like on A100, but they have a smaller 13-bit size field, making them a new incompatible variant. Signed-off-by: Samuel Holland <samuel@sholland.org> Acked-by: Maxime Ripard <maxime@cerno.tech> Link: https://lore.kernel.org/r/20220203015112.12008-1-samuel@sholland.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: dw_mmc: Use device_property_string_array_count()Andy Shevchenko1-2/+1
Use device_property_string_array_count() to get number of strings in a string array property. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220202182450.54925-1-andriy.shevchenko@linux.intel.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: davinci: Use of_device_get_match_data() helperBean Huo1-4/+2
Only the device data is needed, not the entire struct of_device_id. Use of_device_get_match_data() instead of of_match_device(). Signed-off-by: Bean Huo <beanhuo@micron.com> Link: https://lore.kernel.org/r/20220202180648.1252154-6-huobean@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci-of-at91: Use of_device_get_match_data() helperBean Huo1-4/+2
Only the device data is needed, not the entire struct of_device_id. Use of_device_get_match_data() instead of open coding of_match_device(). Signed-off-by: Bean Huo <beanhuo@micron.com> Link: https://lore.kernel.org/r/20220202180648.1252154-5-huobean@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci-tegra: Use of_device_get_match_data() helperBean Huo1-4/+2
Only the device data is needed,not the whole struct of_device_id. Use of_device_get_match_data() instead of open coding of of_match_device(). Signed-off-by: Bean Huo <beanhuo@micron.com> Link: https://lore.kernel.org/r/20220202180648.1252154-3-huobean@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: wmt-sdmmc: Use of_device_get_match_data() helperBean Huo1-5/+2
Only the device data is needed, not the whole struct of_device_id. Use of_device_get_match_data() instead of open coding of of_match_device(). Signed-off-by: Bean Huo <beanhuo@micron.com> Link: https://lore.kernel.org/r/20220202180648.1252154-2-huobean@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28dt-bindings: mmc: Add compatible for Mediatek MT8186Allen-KH Cheng1-0/+3
This commit adds dt-binding documentation of mmc for Mediatek MT8186 SoC Platform. Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com> Link: https://lore.kernel.org/r/20220128062050.23978-5-allen-kh.cheng@mediatek.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci-pci-gli: Add a switch to enable/disable SSC for GL9750 and GL9755Ben Chuang1-12/+54
Add a vendor-specific bit at the bit26 of GL9750's register 878h and GL9755's register 78h to decide whether to disable SSC function. If this bit is set, the SSC function will be disabled. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Link: https://lore.kernel.org/r/20220119075406.36321-1-benchuanggli@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci-pci-gli: Enable SSC at 50MHz and 100MHz for GL9750 and GL9755Ben Chuang1-0/+36
Enable SSC function at 50MHz and 100MHz for GL9750 and GL9755. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Link: https://lore.kernel.org/r/20220119075339.36281-1-benchuanggli@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: sdhci-pci-gli: Reduce the SSC value at 205MHz for GL9750 and GL9755Ben Chuang1-2/+2
The SSC value is 0xFFE7 at 205MHz and may be saturated. Reduce the SSC value to 0x5A1D at 205MHz to reduce this situation for GL9750 and GL9755. Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw> Link: https://lore.kernel.org/r/20220119075306.36262-1-benchuanggli@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-28mmc: Add driver for LiteX's LiteSDCard interfaceGabriel Somlo3-0/+675
LiteX (https://github.com/enjoy-digital/litex) is a SoC framework that targets FPGAs. LiteSDCard is a small footprint, configurable SDCard core commonly used in LiteX designs. The driver was first written in May 2020 and has been maintained cooperatively by the LiteX community. Thanks to all contributors! Co-developed-by: Kamil Rakoczy <krakoczy@antmicro.com> Signed-off-by: Kamil Rakoczy <krakoczy@antmicro.com> Co-developed-by: Maciej Dudek <mdudek@internships.antmicro.com> Signed-off-by: Maciej Dudek <mdudek@internships.antmicro.com> Co-developed-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Gabriel Somlo <gsomlo@gmail.com> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220113170300.3555651-4-gsomlo@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>