summaryrefslogtreecommitdiff
path: root/drivers/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/spi/Makefile1
-rw-r--r--drivers/mtd/spi/eeprom_m95xxx.c111
-rw-r--r--drivers/mtd/spi/sf_internal.h1
-rw-r--r--drivers/mtd/spi/sf_ops.c14
-rw-r--r--drivers/mtd/spi/sf_probe.c12
5 files changed, 18 insertions, 121 deletions
diff --git a/drivers/mtd/spi/Makefile b/drivers/mtd/spi/Makefile
index ff48b25f6f..cf4e7e1f42 100644
--- a/drivers/mtd/spi/Makefile
+++ b/drivers/mtd/spi/Makefile
@@ -20,4 +20,3 @@ obj-$(CONFIG_SPI_FLASH) += sf_ops.o sf_params.o
obj-$(CONFIG_SPI_FLASH_DATAFLASH) += sf_dataflash.o
obj-$(CONFIG_SPI_FLASH_MTD) += sf_mtd.o
obj-$(CONFIG_SPI_FLASH_SANDBOX) += sandbox.o
-obj-$(CONFIG_SPI_M95XXX) += eeprom_m95xxx.o
diff --git a/drivers/mtd/spi/eeprom_m95xxx.c b/drivers/mtd/spi/eeprom_m95xxx.c
deleted file mode 100644
index a019939b8b..0000000000
--- a/drivers/mtd/spi/eeprom_m95xxx.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (C) 2009
- * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <spi.h>
-
-#define SPI_EEPROM_WREN 0x06
-#define SPI_EEPROM_RDSR 0x05
-#define SPI_EEPROM_READ 0x03
-#define SPI_EEPROM_WRITE 0x02
-
-#ifndef CONFIG_DEFAULT_SPI_BUS
-#define CONFIG_DEFAULT_SPI_BUS 0
-#endif
-
-#ifndef CONFIG_DEFAULT_SPI_MODE
-#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0
-#endif
-
-#ifndef CONFIG_SYS_SPI_WRITE_TOUT
-#define CONFIG_SYS_SPI_WRITE_TOUT (5 * CONFIG_SYS_HZ)
-#endif
-
-ssize_t spi_read(uchar *addr, int alen, uchar *buffer, int len)
-{
- struct spi_slave *slave;
- u8 cmd = SPI_EEPROM_READ;
-
- slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
- CONFIG_DEFAULT_SPI_MODE);
- if (!slave)
- return 0;
-
- spi_claim_bus(slave);
-
- /* command */
- if (spi_xfer(slave, 8, &cmd, NULL, SPI_XFER_BEGIN))
- return -1;
-
- /*
- * if alen == 3, addr[0] is the block number, we never use it here.
- * All we need are the lower 16 bits.
- */
- if (alen == 3)
- addr++;
-
- /* address, and data */
- if (spi_xfer(slave, 16, addr, NULL, 0))
- return -1;
- if (spi_xfer(slave, 8 * len, NULL, buffer, SPI_XFER_END))
- return -1;
-
- spi_release_bus(slave);
- spi_free_slave(slave);
- return len;
-}
-
-ssize_t spi_write(uchar *addr, int alen, uchar *buffer, int len)
-{
- struct spi_slave *slave;
- char buf[3];
- ulong start;
-
- slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
- CONFIG_DEFAULT_SPI_MODE);
- if (!slave)
- return 0;
-
- spi_claim_bus(slave);
-
- buf[0] = SPI_EEPROM_WREN;
- if (spi_xfer(slave, 8, buf, NULL, SPI_XFER_BEGIN | SPI_XFER_END))
- return -1;
-
- buf[0] = SPI_EEPROM_WRITE;
-
- /* As for reading, drop addr[0] if alen is 3 */
- if (alen == 3) {
- alen--;
- addr++;
- }
-
- memcpy(buf + 1, addr, alen);
- /* command + addr, then data */
- if (spi_xfer(slave, 24, buf, NULL, SPI_XFER_BEGIN))
- return -1;
- if (spi_xfer(slave, len * 8, buffer, NULL, SPI_XFER_END))
- return -1;
-
- start = get_timer(0);
- do {
- buf[0] = SPI_EEPROM_RDSR;
- buf[1] = 0;
- spi_xfer(slave, 16, buf, buf, SPI_XFER_BEGIN | SPI_XFER_END);
-
- if (!(buf[1] & 1))
- break;
-
- } while (get_timer(start) < CONFIG_SYS_SPI_WRITE_TOUT);
-
- if (buf[1] & 1)
- printf("*** spi_write: Timeout while writing!\n");
-
- spi_release_bus(slave);
- spi_free_slave(slave);
- return len;
-}
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index 8793f1865a..85c8a89cee 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -64,6 +64,7 @@ enum spi_nor_option_flags {
#define SPI_FLASH_CFI_MFR_SPANSION 0x01
#define SPI_FLASH_CFI_MFR_STMICRO 0x20
#define SPI_FLASH_CFI_MFR_MACRONIX 0xc2
+#define SPI_FLASH_CFI_MFR_SST 0xbf
#define SPI_FLASH_CFI_MFR_WINBOND 0xef
/* Erase commands */
diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c
index 384224d75a..3a56d7f55c 100644
--- a/drivers/mtd/spi/sf_ops.c
+++ b/drivers/mtd/spi/sf_ops.c
@@ -583,7 +583,7 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len,
}
#endif
-#ifdef CONFIG_SPI_FLASH_STMICRO
+#if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST)
static void stm_get_locked_range(struct spi_flash *flash, u8 sr, loff_t *ofs,
u32 *len)
{
@@ -663,8 +663,11 @@ int stm_lock(struct spi_flash *flash, u32 ofs, size_t len)
u8 status_old, status_new;
u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
u8 shift = ffs(mask) - 1, pow, val;
+ int ret;
- spi_flash_cmd_read_status(flash, &status_old);
+ ret = spi_flash_cmd_read_status(flash, &status_old);
+ if (ret < 0)
+ return ret;
/* SPI NOR always locks to the end */
if (ofs + len != flash->size) {
@@ -714,8 +717,11 @@ int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len)
uint8_t status_old, status_new;
u8 mask = SR_BP2 | SR_BP1 | SR_BP0;
u8 shift = ffs(mask) - 1, pow, val;
+ int ret;
- spi_flash_cmd_read_status(flash, &status_old);
+ ret = spi_flash_cmd_read_status(flash, &status_old);
+ if (ret < 0)
+ return ret;
/* Cannot unlock; would unlock larger region than requested */
if (stm_is_locked_sr(flash, status_old, ofs - flash->erase_size,
@@ -750,4 +756,4 @@ int stm_unlock(struct spi_flash *flash, u32 ofs, size_t len)
return 0;
}
-#endif /* CONFIG_SPI_FLASH_STMICRO */
+#endif
diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
index bc05d30221..a619182a75 100644
--- a/drivers/mtd/spi/sf_probe.c
+++ b/drivers/mtd/spi/sf_probe.c
@@ -164,14 +164,15 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
flash->memory_map = spi->memory_map;
flash->dual_flash = flash->spi->option;
+ /* Assign spi flash flags */
+ if (params->flags & SST_WR)
+ flash->flags |= SNOR_F_SST_WR;
+
/* Assign spi_flash ops */
#ifndef CONFIG_DM_SPI_FLASH
flash->write = spi_flash_cmd_write_ops;
#if defined(CONFIG_SPI_FLASH_SST)
- if (params->flags & SST_WR)
- flash->flags |= SNOR_F_SST_WR;
-
- if (params->flags & SNOR_F_SST_WR) {
+ if (flash->flags & SNOR_F_SST_WR) {
if (flash->spi->op_mode_tx & SPI_OPM_TX_BP)
flash->write = sst_write_bp;
else
@@ -184,8 +185,9 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
/* lock hooks are flash specific - assign them based on idcode0 */
switch (idcode[0]) {
-#ifdef CONFIG_SPI_FLASH_STMICRO
+#if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST)
case SPI_FLASH_CFI_MFR_STMICRO:
+ case SPI_FLASH_CFI_MFR_SST:
flash->flash_lock = stm_lock;
flash->flash_unlock = stm_unlock;
flash->flash_is_locked = stm_is_locked;
generated by cgit (git 2.34.1) at 2024-12-26 20:08:28 +0000