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-rw-r--r--drivers/mtd/nand/raw/Kconfig2
-rw-r--r--drivers/mtd/nand/raw/atmel/nand-controller.c20
-rw-r--r--drivers/mtd/nand/raw/au1550nd.c2
-rw-r--r--drivers/mtd/nand/raw/brcmnand/brcmnand.c10
-rw-r--r--drivers/mtd/nand/raw/cadence-nand-controller.c13
-rw-r--r--drivers/mtd/nand/raw/denali.c14
-rw-r--r--drivers/mtd/nand/raw/denali_dt.c56
-rw-r--r--drivers/mtd/nand/raw/denali_pci.c6
-rw-r--r--drivers/mtd/nand/raw/fsl_upm.c2
-rw-r--r--drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c11
-rw-r--r--drivers/mtd/nand/raw/mpc5121_nfc.c2
-rw-r--r--drivers/mtd/nand/raw/nand_macronix.c11
-rw-r--r--drivers/mtd/nand/raw/stm32_fmc2_nand.c38
13 files changed, 140 insertions, 47 deletions
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 74fb91adeb46..a80a46bb5b8b 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -452,7 +452,7 @@ config MTD_NAND_PLATFORM
config MTD_NAND_CADENCE
tristate "Support Cadence NAND (HPNFC) controller"
- depends on OF || COMPILE_TEST
+ depends on (OF || COMPILE_TEST) && HAS_IOMEM
help
Enable the driver for NAND flash on platforms using a Cadence NAND
controller.
diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
index 8d6be90a6fe8..3ba17a98df4d 100644
--- a/drivers/mtd/nand/raw/atmel/nand-controller.c
+++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
@@ -1578,9 +1578,8 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
nand->numcs = numcs;
- gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev, "det", 0,
- &np->fwnode, GPIOD_IN,
- "nand-det");
+ gpio = devm_fwnode_gpiod_get(nc->dev, of_fwnode_handle(np),
+ "det", GPIOD_IN, "nand-det");
if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
dev_err(nc->dev,
"Failed to get detect gpio (err = %ld)\n",
@@ -1624,9 +1623,10 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
nand->cs[i].rb.type = ATMEL_NAND_NATIVE_RB;
nand->cs[i].rb.id = val;
} else {
- gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev,
- "rb", i, &np->fwnode,
- GPIOD_IN, "nand-rb");
+ gpio = devm_fwnode_gpiod_get_index(nc->dev,
+ of_fwnode_handle(np),
+ "rb", i, GPIOD_IN,
+ "nand-rb");
if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
dev_err(nc->dev,
"Failed to get R/B gpio (err = %ld)\n",
@@ -1640,10 +1640,10 @@ static struct atmel_nand *atmel_nand_create(struct atmel_nand_controller *nc,
}
}
- gpio = devm_fwnode_get_index_gpiod_from_child(nc->dev, "cs",
- i, &np->fwnode,
- GPIOD_OUT_HIGH,
- "nand-cs");
+ gpio = devm_fwnode_gpiod_get_index(nc->dev,
+ of_fwnode_handle(np),
+ "cs", i, GPIOD_OUT_HIGH,
+ "nand-cs");
if (IS_ERR(gpio) && PTR_ERR(gpio) != -ENOENT) {
dev_err(nc->dev,
"Failed to get CS gpio (err = %ld)\n",
diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c
index e10b76089048..75eb3e97fae3 100644
--- a/drivers/mtd/nand/raw/au1550nd.c
+++ b/drivers/mtd/nand/raw/au1550nd.c
@@ -404,7 +404,7 @@ static int au1550nd_probe(struct platform_device *pdev)
goto out1;
}
- ctx->base = ioremap_nocache(r->start, 0x1000);
+ ctx->base = ioremap(r->start, 0x1000);
if (!ctx->base) {
dev_err(&pdev->dev, "cannot remap NAND memory area\n");
ret = -ENODEV;
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 1a66b1cd51c0..44518dada75b 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2635,6 +2635,16 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc)
/* initialize the dma version */
brcmnand_flash_dma_revision_init(ctrl);
+ ret = -EIO;
+ if (ctrl->nand_version >= 0x0700)
+ ret = dma_set_mask_and_coherent(&pdev->dev,
+ DMA_BIT_MASK(40));
+ if (ret)
+ ret = dma_set_mask_and_coherent(&pdev->dev,
+ DMA_BIT_MASK(32));
+ if (ret)
+ goto err;
+
/* linked-list and stop on error */
flash_dma_writel(ctrl, FLASH_DMA_MODE, FLASH_DMA_MODE_MASK);
flash_dma_writel(ctrl, FLASH_DMA_ERROR_STATUS, 0);
diff --git a/drivers/mtd/nand/raw/cadence-nand-controller.c b/drivers/mtd/nand/raw/cadence-nand-controller.c
index 3a36285a8d8a..f6c7102a1e32 100644
--- a/drivers/mtd/nand/raw/cadence-nand-controller.c
+++ b/drivers/mtd/nand/raw/cadence-nand-controller.c
@@ -914,8 +914,8 @@ static void cadence_nand_get_caps(struct cdns_nand_ctrl *cdns_ctrl)
/* Prepare CDMA descriptor. */
static void
cadence_nand_cdma_desc_prepare(struct cdns_nand_ctrl *cdns_ctrl,
- char nf_mem, u32 flash_ptr, char *mem_ptr,
- char *ctrl_data_ptr, u16 ctype)
+ char nf_mem, u32 flash_ptr, dma_addr_t mem_ptr,
+ dma_addr_t ctrl_data_ptr, u16 ctype)
{
struct cadence_nand_cdma_desc *cdma_desc = cdns_ctrl->cdma_desc;
@@ -931,13 +931,13 @@ cadence_nand_cdma_desc_prepare(struct cdns_nand_ctrl *cdns_ctrl,
cdma_desc->command_flags |= CDMA_CF_DMA_MASTER;
cdma_desc->command_flags |= CDMA_CF_INT;
- cdma_desc->memory_pointer = (uintptr_t)mem_ptr;
+ cdma_desc->memory_pointer = mem_ptr;
cdma_desc->status = 0;
cdma_desc->sync_flag_pointer = 0;
cdma_desc->sync_arguments = 0;
cdma_desc->command_type = ctype;
- cdma_desc->ctrl_data_ptr = (uintptr_t)ctrl_data_ptr;
+ cdma_desc->ctrl_data_ptr = ctrl_data_ptr;
}
static u8 cadence_nand_check_desc_error(struct cdns_nand_ctrl *cdns_ctrl,
@@ -1280,8 +1280,7 @@ cadence_nand_cdma_transfer(struct cdns_nand_ctrl *cdns_ctrl, u8 chip_nr,
}
cadence_nand_cdma_desc_prepare(cdns_ctrl, chip_nr, page,
- (void *)dma_buf, (void *)dma_ctrl_dat,
- ctype);
+ dma_buf, dma_ctrl_dat, ctype);
status = cadence_nand_cdma_send_and_wait(cdns_ctrl, thread_nr);
@@ -1360,7 +1359,7 @@ static int cadence_nand_erase(struct nand_chip *chip, u32 page)
cadence_nand_cdma_desc_prepare(cdns_ctrl,
cdns_chip->cs[chip->cur_cs],
- page, NULL, NULL,
+ page, 0, 0,
CDMA_CT_ERASE);
status = cadence_nand_cdma_send_and_wait(cdns_ctrl, thread_nr);
if (status) {
diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index 3102ddbd8abd..fafd0a0aa8e2 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/drivers/mtd/nand/raw/denali.c
@@ -21,7 +21,6 @@
#include "denali.h"
#define DENALI_NAND_NAME "denali-nand"
-#define DENALI_DEFAULT_OOB_SKIP_BYTES 8
/* for Indexed Addressing */
#define DENALI_INDEXED_CTRL 0x00
@@ -1302,15 +1301,16 @@ int denali_init(struct denali_controller *denali)
/*
* Set how many bytes should be skipped before writing data in OOB.
- * If a non-zero value has already been set (by firmware or something),
- * just use it. Otherwise, set the driver's default.
+ * If a platform requests a non-zero value, set it to the register.
+ * Otherwise, read the value out, expecting it has already been set up
+ * by firmware.
*/
- denali->oob_skip_bytes = ioread32(denali->reg + SPARE_AREA_SKIP_BYTES);
- if (!denali->oob_skip_bytes) {
- denali->oob_skip_bytes = DENALI_DEFAULT_OOB_SKIP_BYTES;
+ if (denali->oob_skip_bytes)
iowrite32(denali->oob_skip_bytes,
denali->reg + SPARE_AREA_SKIP_BYTES);
- }
+ else
+ denali->oob_skip_bytes = ioread32(denali->reg +
+ SPARE_AREA_SKIP_BYTES);
iowrite32(0, denali->reg + TRANSFER_SPARE_REG);
iowrite32(GENMASK(denali->nbanks - 1, 0), denali->reg + RB_PIN_ENABLED);
diff --git a/drivers/mtd/nand/raw/denali_dt.c b/drivers/mtd/nand/raw/denali_dt.c
index 8b779a899dcf..f08740ae282b 100644
--- a/drivers/mtd/nand/raw/denali_dt.c
+++ b/drivers/mtd/nand/raw/denali_dt.c
@@ -6,6 +6,7 @@
*/
#include <linux/clk.h>
+#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/ioport.h>
@@ -14,6 +15,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/reset.h>
#include "denali.h"
@@ -22,11 +24,14 @@ struct denali_dt {
struct clk *clk; /* core clock */
struct clk *clk_x; /* bus interface clock */
struct clk *clk_ecc; /* ECC circuit clock */
+ struct reset_control *rst; /* core reset */
+ struct reset_control *rst_reg; /* register reset */
};
struct denali_dt_data {
unsigned int revision;
unsigned int caps;
+ unsigned int oob_skip_bytes;
const struct nand_ecc_caps *ecc_caps;
};
@@ -34,6 +39,7 @@ NAND_ECC_CAPS_SINGLE(denali_socfpga_ecc_caps, denali_calc_ecc_bytes,
512, 8, 15);
static const struct denali_dt_data denali_socfpga_data = {
.caps = DENALI_CAP_HW_ECC_FIXUP,
+ .oob_skip_bytes = 2,
.ecc_caps = &denali_socfpga_ecc_caps,
};
@@ -42,6 +48,7 @@ NAND_ECC_CAPS_SINGLE(denali_uniphier_v5a_ecc_caps, denali_calc_ecc_bytes,
static const struct denali_dt_data denali_uniphier_v5a_data = {
.caps = DENALI_CAP_HW_ECC_FIXUP |
DENALI_CAP_DMA_64BIT,
+ .oob_skip_bytes = 8,
.ecc_caps = &denali_uniphier_v5a_ecc_caps,
};
@@ -51,6 +58,7 @@ static const struct denali_dt_data denali_uniphier_v5b_data = {
.revision = 0x0501,
.caps = DENALI_CAP_HW_ECC_FIXUP |
DENALI_CAP_DMA_64BIT,
+ .oob_skip_bytes = 8,
.ecc_caps = &denali_uniphier_v5b_ecc_caps,
};
@@ -118,11 +126,13 @@ static int denali_dt_probe(struct platform_device *pdev)
denali = &dt->controller;
data = of_device_get_match_data(dev);
- if (data) {
- denali->revision = data->revision;
- denali->caps = data->caps;
- denali->ecc_caps = data->ecc_caps;
- }
+ if (WARN_ON(!data))
+ return -EINVAL;
+
+ denali->revision = data->revision;
+ denali->caps = data->caps;
+ denali->oob_skip_bytes = data->oob_skip_bytes;
+ denali->ecc_caps = data->ecc_caps;
denali->dev = dev;
denali->irq = platform_get_irq(pdev, 0);
@@ -151,6 +161,14 @@ static int denali_dt_probe(struct platform_device *pdev)
if (IS_ERR(dt->clk_ecc))
return PTR_ERR(dt->clk_ecc);
+ dt->rst = devm_reset_control_get_optional_shared(dev, "nand");
+ if (IS_ERR(dt->rst))
+ return PTR_ERR(dt->rst);
+
+ dt->rst_reg = devm_reset_control_get_optional_shared(dev, "reg");
+ if (IS_ERR(dt->rst_reg))
+ return PTR_ERR(dt->rst_reg);
+
ret = clk_prepare_enable(dt->clk);
if (ret)
return ret;
@@ -166,10 +184,30 @@ static int denali_dt_probe(struct platform_device *pdev)
denali->clk_rate = clk_get_rate(dt->clk);
denali->clk_x_rate = clk_get_rate(dt->clk_x);
- ret = denali_init(denali);
+ /*
+ * Deassert the register reset, and the core reset in this order.
+ * Deasserting the core reset while the register reset is asserted
+ * will cause unpredictable behavior in the controller.
+ */
+ ret = reset_control_deassert(dt->rst_reg);
if (ret)
goto out_disable_clk_ecc;
+ ret = reset_control_deassert(dt->rst);
+ if (ret)
+ goto out_assert_rst_reg;
+
+ /*
+ * When the reset is deasserted, the initialization sequence is kicked
+ * (bootstrap process). The driver must wait until it finished.
+ * Otherwise, it will result in unpredictable behavior.
+ */
+ usleep_range(200, 1000);
+
+ ret = denali_init(denali);
+ if (ret)
+ goto out_assert_rst;
+
for_each_child_of_node(dev->of_node, np) {
ret = denali_dt_chip_init(denali, np);
if (ret) {
@@ -184,6 +222,10 @@ static int denali_dt_probe(struct platform_device *pdev)
out_remove_denali:
denali_remove(denali);
+out_assert_rst:
+ reset_control_assert(dt->rst);
+out_assert_rst_reg:
+ reset_control_assert(dt->rst_reg);
out_disable_clk_ecc:
clk_disable_unprepare(dt->clk_ecc);
out_disable_clk_x:
@@ -199,6 +241,8 @@ static int denali_dt_remove(struct platform_device *pdev)
struct denali_dt *dt = platform_get_drvdata(pdev);
denali_remove(&dt->controller);
+ reset_control_assert(dt->rst);
+ reset_control_assert(dt->rst_reg);
clk_disable_unprepare(dt->clk_ecc);
clk_disable_unprepare(dt->clk_x);
clk_disable_unprepare(dt->clk);
diff --git a/drivers/mtd/nand/raw/denali_pci.c b/drivers/mtd/nand/raw/denali_pci.c
index d62aa5271753..2f77ee55e1bf 100644
--- a/drivers/mtd/nand/raw/denali_pci.c
+++ b/drivers/mtd/nand/raw/denali_pci.c
@@ -74,15 +74,15 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
return ret;
}
- denali->reg = ioremap_nocache(csr_base, csr_len);
+ denali->reg = ioremap(csr_base, csr_len);
if (!denali->reg) {
dev_err(&dev->dev, "Spectra: Unable to remap memory region\n");
return -ENOMEM;
}
- denali->host = ioremap_nocache(mem_base, mem_len);
+ denali->host = ioremap(mem_base, mem_len);
if (!denali->host) {
- dev_err(&dev->dev, "Spectra: ioremap_nocache failed!");
+ dev_err(&dev->dev, "Spectra: ioremap failed!");
ret = -ENOMEM;
goto out_unmap_reg;
}
diff --git a/drivers/mtd/nand/raw/fsl_upm.c b/drivers/mtd/nand/raw/fsl_upm.c
index 1054cc070747..f31fae3a4c68 100644
--- a/drivers/mtd/nand/raw/fsl_upm.c
+++ b/drivers/mtd/nand/raw/fsl_upm.c
@@ -285,7 +285,7 @@ static int fun_probe(struct platform_device *ofdev)
fun->wait_flags = FSL_UPM_WAIT_RUN_PATTERN |
FSL_UPM_WAIT_WRITE_BYTE;
- fun->io_base = devm_ioremap_nocache(&ofdev->dev, io_res.start,
+ fun->io_base = devm_ioremap(&ofdev->dev, io_res.start,
resource_size(&io_res));
if (!fun->io_base) {
ret = -ENOMEM;
diff --git a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
index 334fe3130285..b9d5d55a5edb 100644
--- a/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
@@ -148,6 +148,10 @@ static int gpmi_init(struct gpmi_nand_data *this)
struct resources *r = &this->resources;
int ret;
+ ret = pm_runtime_get_sync(this->dev);
+ if (ret < 0)
+ return ret;
+
ret = gpmi_reset_block(r->gpmi_regs, false);
if (ret)
goto err_out;
@@ -179,8 +183,9 @@ static int gpmi_init(struct gpmi_nand_data *this)
*/
writel(BM_GPMI_CTRL1_DECOUPLE_CS, r->gpmi_regs + HW_GPMI_CTRL1_SET);
- return 0;
err_out:
+ pm_runtime_mark_last_busy(this->dev);
+ pm_runtime_put_autosuspend(this->dev);
return ret;
}
@@ -2722,6 +2727,10 @@ static int gpmi_pm_resume(struct device *dev)
return ret;
}
+ /* Set flag to get timing setup restored for next exec_op */
+ if (this->hw.clk_rate)
+ this->hw.must_apply_timings = true;
+
/* re-init the BCH registers */
ret = bch_set_geometry(this);
if (ret) {
diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
index 8b90def6686f..a2fcb739e5f8 100644
--- a/drivers/mtd/nand/raw/mpc5121_nfc.c
+++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
@@ -438,7 +438,7 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset,
buffer += blksize;
offset += blksize;
size -= blksize;
- };
+ }
}
/* Copy data from/to NFC main and spare buffers */
diff --git a/drivers/mtd/nand/raw/nand_macronix.c b/drivers/mtd/nand/raw/nand_macronix.c
index 58511aeb0c9a..3ff7ce00cbdb 100644
--- a/drivers/mtd/nand/raw/nand_macronix.c
+++ b/drivers/mtd/nand/raw/nand_macronix.c
@@ -59,7 +59,7 @@ static void macronix_nand_onfi_init(struct nand_chip *chip)
*/
static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip)
{
- unsigned int i;
+ int i;
static const char * const broken_get_timings[] = {
"MX30LF1G18AC",
"MX30LF1G28AC",
@@ -80,12 +80,9 @@ static void macronix_nand_fix_broken_get_timings(struct nand_chip *chip)
if (!chip->parameters.supports_set_get_features)
return;
- for (i = 0; i < ARRAY_SIZE(broken_get_timings); i++) {
- if (!strcmp(broken_get_timings[i], chip->parameters.model))
- break;
- }
-
- if (i == ARRAY_SIZE(broken_get_timings))
+ i = match_string(broken_get_timings, ARRAY_SIZE(broken_get_timings),
+ chip->parameters.model);
+ if (i < 0)
return;
bitmap_clear(chip->parameters.get_feature_list,
diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
index 9e63800f768a..3ba73f18841f 100644
--- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c
+++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c
@@ -37,6 +37,7 @@
/* Max ECC buffer length */
#define FMC2_MAX_ECC_BUF_LEN (FMC2_BCHDSRS_LEN * FMC2_MAX_SG)
+#define FMC2_TIMEOUT_US 1000
#define FMC2_TIMEOUT_MS 1000
/* Timings */
@@ -53,6 +54,8 @@
#define FMC2_PMEM 0x88
#define FMC2_PATT 0x8c
#define FMC2_HECCR 0x94
+#define FMC2_ISR 0x184
+#define FMC2_ICR 0x188
#define FMC2_CSQCR 0x200
#define FMC2_CSQCFGR1 0x204
#define FMC2_CSQCFGR2 0x208
@@ -118,6 +121,12 @@
#define FMC2_PATT_ATTHIZ(x) (((x) & 0xff) << 24)
#define FMC2_PATT_DEFAULT 0x0a0a0a0a
+/* Register: FMC2_ISR */
+#define FMC2_ISR_IHLF BIT(1)
+
+/* Register: FMC2_ICR */
+#define FMC2_ICR_CIHLF BIT(1)
+
/* Register: FMC2_CSQCR */
#define FMC2_CSQCR_CSQSTART BIT(0)
@@ -1322,6 +1331,31 @@ static void stm32_fmc2_write_data(struct nand_chip *chip, const void *buf,
stm32_fmc2_set_buswidth_16(fmc2, true);
}
+static int stm32_fmc2_waitrdy(struct nand_chip *chip, unsigned long timeout_ms)
+{
+ struct stm32_fmc2_nfc *fmc2 = to_stm32_nfc(chip->controller);
+ const struct nand_sdr_timings *timings;
+ u32 isr, sr;
+
+ /* Check if there is no pending requests to the NAND flash */
+ if (readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_SR, sr,
+ sr & FMC2_SR_NWRF, 1,
+ FMC2_TIMEOUT_US))
+ dev_warn(fmc2->dev, "Waitrdy timeout\n");
+
+ /* Wait tWB before R/B# signal is low */
+ timings = nand_get_sdr_timings(&chip->data_interface);
+ ndelay(PSEC_TO_NSEC(timings->tWB_max));
+
+ /* R/B# signal is low, clear high level flag */
+ writel_relaxed(FMC2_ICR_CIHLF, fmc2->io_base + FMC2_ICR);
+
+ /* Wait R/B# signal is high */
+ return readl_relaxed_poll_timeout_atomic(fmc2->io_base + FMC2_ISR,
+ isr, isr & FMC2_ISR_IHLF,
+ 5, 1000 * timeout_ms);
+}
+
static int stm32_fmc2_exec_op(struct nand_chip *chip,
const struct nand_operation *op,
bool check_only)
@@ -1366,8 +1400,8 @@ static int stm32_fmc2_exec_op(struct nand_chip *chip,
break;
case NAND_OP_WAITRDY_INSTR:
- ret = nand_soft_waitrdy(chip,
- instr->ctx.waitrdy.timeout_ms);
+ ret = stm32_fmc2_waitrdy(chip,
+ instr->ctx.waitrdy.timeout_ms);
break;
}
}
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