summaryrefslogtreecommitdiff
path: root/drivers/mtd/spi-nor/stm32-quadspi.c
diff options
context:
space:
mode:
authorBrian Norris <computersforpeace@gmail.com>2017-07-07 18:00:06 -0700
committerBrian Norris <computersforpeace@gmail.com>2017-07-07 18:00:06 -0700
commit8b9ef8f955e37966f6614648cbd139bec02f1bc6 (patch)
tree907a4cc4fcfca03ad1f92aa7d29baffea9a2ac39 /drivers/mtd/spi-nor/stm32-quadspi.c
parentb9504247a6eb2bd68e3f620ca1f3fbe7309123ea (diff)
parent9447332ffacceeb49467ae5314887a30f6c0aaa9 (diff)
Merge tag 'spi-nor/for-4.13' into MTD
From Cyrille: """ This pull request contains the following notable changes: - introduce support to the SPI 1-2-2 and 1-4-4 protocols. - introduce support to the Double Data Rate (DDR) mode. - introduce support to the Octo SPI protocols. - add support to new memory parts for Spansion, Macronix and Winbond. - add fixes for the Aspeed, STM32 and Cadence QSPI controler drivers. - clean up the st_spi_fsm driver. """
Diffstat (limited to 'drivers/mtd/spi-nor/stm32-quadspi.c')
-rw-r--r--drivers/mtd/spi-nor/stm32-quadspi.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/mtd/spi-nor/stm32-quadspi.c b/drivers/mtd/spi-nor/stm32-quadspi.c
index ae45f81b8cd3..86c0931543c5 100644
--- a/drivers/mtd/spi-nor/stm32-quadspi.c
+++ b/drivers/mtd/spi-nor/stm32-quadspi.c
@@ -19,6 +19,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
+#include <linux/sizes.h>
#define QUADSPI_CR 0x00
#define CR_EN BIT(0)
@@ -192,15 +193,15 @@ static void stm32_qspi_set_framemode(struct spi_nor *nor,
cmd->framemode = CCR_IMODE_1;
if (read) {
- switch (nor->flash_read) {
- case SPI_NOR_NORMAL:
- case SPI_NOR_FAST:
+ switch (nor->read_proto) {
+ default:
+ case SNOR_PROTO_1_1_1:
dmode = CCR_DMODE_1;
break;
- case SPI_NOR_DUAL:
+ case SNOR_PROTO_1_1_2:
dmode = CCR_DMODE_2;
break;
- case SPI_NOR_QUAD:
+ case SNOR_PROTO_1_1_4:
dmode = CCR_DMODE_4;
break;
}
@@ -375,7 +376,7 @@ static ssize_t stm32_qspi_read(struct spi_nor *nor, loff_t from, size_t len,
struct stm32_qspi_cmd cmd;
int err;
- dev_dbg(qspi->dev, "read(%#.2x): buf:%p from:%#.8x len:%#x\n",
+ dev_dbg(qspi->dev, "read(%#.2x): buf:%p from:%#.8x len:%#zx\n",
nor->read_opcode, buf, (u32)from, len);
memset(&cmd, 0, sizeof(cmd));
@@ -402,7 +403,7 @@ static ssize_t stm32_qspi_write(struct spi_nor *nor, loff_t to, size_t len,
struct stm32_qspi_cmd cmd;
int err;
- dev_dbg(dev, "write(%#.2x): buf:%p to:%#.8x len:%#x\n",
+ dev_dbg(dev, "write(%#.2x): buf:%p to:%#.8x len:%#zx\n",
nor->program_opcode, buf, (u32)to, len);
memset(&cmd, 0, sizeof(cmd));
@@ -480,7 +481,12 @@ static void stm32_qspi_unprep(struct spi_nor *nor, enum spi_nor_ops ops)
static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
struct device_node *np)
{
- u32 width, flash_read, presc, cs_num, max_rate = 0;
+ struct spi_nor_hwcaps hwcaps = {
+ .mask = SNOR_HWCAPS_READ |
+ SNOR_HWCAPS_READ_FAST |
+ SNOR_HWCAPS_PP,
+ };
+ u32 width, presc, cs_num, max_rate = 0;
struct stm32_qspi_flash *flash;
struct mtd_info *mtd;
int ret;
@@ -499,12 +505,10 @@ static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
width = 1;
if (width == 4)
- flash_read = SPI_NOR_QUAD;
+ hwcaps.mask |= SNOR_HWCAPS_READ_1_1_4;
else if (width == 2)
- flash_read = SPI_NOR_DUAL;
- else if (width == 1)
- flash_read = SPI_NOR_NORMAL;
- else
+ hwcaps.mask |= SNOR_HWCAPS_READ_1_1_2;
+ else if (width != 1)
return -EINVAL;
flash = &qspi->flash[cs_num];
@@ -539,7 +543,7 @@ static int stm32_qspi_flash_setup(struct stm32_qspi *qspi,
*/
flash->fsize = FSIZE_VAL(SZ_1K);
- ret = spi_nor_scan(&flash->nor, NULL, flash_read);
+ ret = spi_nor_scan(&flash->nor, NULL, &hwcaps);
if (ret) {
dev_err(qspi->dev, "device scan failed\n");
return ret;