Instead using idcode[0] for detecting manufacture id add JEDEC_MFR macro for code simplicity and undesirability.
Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com Cc: York Sun york.sun@nxp.com Cc: Vignesh R vigneshr@ti.com Cc: Mugunthan V N mugunthanvnm@ti.com Cc: Michal Simek michal.simek@xilinx.com Cc: Siva Durga Prasad Paladugu sivadur@xilinx.com Signed-off-by: Jagan Teki jteki@openedev.com --- drivers/mtd/spi/sf_internal.h | 1 + drivers/mtd/spi/spi_flash.c | 30 +++++++++++++++++------------- 2 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index bb5251d..a9455ac 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -104,6 +104,7 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len, #define CMD_SPANSION_WRAR 0x71 /* Write any device register */ #endif
+#define JEDEC_MFR(info) ((info)->id[0]) #define JEDEC_ID(info) (((info)->id[1]) << 8 | ((info)->id[2])) #define JEDEC_EXT(info) (((info)->id[3]) << 8 | ((info)->id[4]))
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index 099714e..daa9014 100644 --- a/drivers/mtd/spi/spi_flash.c +++ b/drivers/mtd/spi/spi_flash.c @@ -165,7 +165,8 @@ bar_end: return flash->bank_curr; }
-static int spi_flash_read_bar(struct spi_flash *flash, u8 idcode0) +static int spi_flash_read_bar(struct spi_flash *flash, + const struct spi_flash_info *info) { u8 curr_bank = 0; int ret; @@ -173,7 +174,7 @@ static int spi_flash_read_bar(struct spi_flash *flash, u8 idcode0) if (flash->size <= SPI_FLASH_16MB_BOUN) goto bar_end;
- switch (idcode0) { + switch (JEDEC_MFR(info)) { case SPI_FLASH_CFI_MFR_SPANSION: flash->bank_read_cmd = CMD_BANKADDR_BRRD; flash->bank_write_cmd = CMD_BANKADDR_BRWR; @@ -949,9 +950,10 @@ static const struct spi_flash_info *spi_flash_read_id(struct spi_flash *flash) return ERR_PTR(-ENODEV); }
-static int set_quad_mode(struct spi_flash *flash, u8 idcode0) +static int set_quad_mode(struct spi_flash *flash, + const struct spi_flash_info *info) { - switch (idcode0) { + switch (JEDEC_MFR(info)) { #ifdef CONFIG_SPI_FLASH_MACRONIX case SPI_FLASH_CFI_MFR_MACRONIX: return macronix_quad_enable(flash); @@ -966,7 +968,8 @@ static int set_quad_mode(struct spi_flash *flash, u8 idcode0) return micron_quad_enable(flash); #endif default: - printf("SF: Need set QEB func for %02x flash\n", idcode0); + printf("SF: Need set QEB func for %02x flash\n", + JEDEC_MFR(info)); return -1; } } @@ -1085,9 +1088,9 @@ int spi_flash_scan(struct spi_flash *flash) } #endif /* Flash powers up read-only, so clear BP# bits */ - if (idcode[0] == SPI_FLASH_CFI_MFR_ATMEL || - idcode[0] == SPI_FLASH_CFI_MFR_MACRONIX || - idcode[0] == SPI_FLASH_CFI_MFR_SST) + if (JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_ATMEL || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_MACRONIX || + JEDEC_MFR(info) == SPI_FLASH_CFI_MFR_SST) write_sr(flash, 0);
/* Assign spi data */ @@ -1115,7 +1118,7 @@ int spi_flash_scan(struct spi_flash *flash) #endif
/* lock hooks are flash specific - assign them based on idcode0 */ - switch (idcode[0]) { + switch (JEDEC_MFR(info)) { #if defined(CONFIG_SPI_FLASH_STMICRO) || defined(CONFIG_SPI_FLASH_SST) case SPI_FLASH_CFI_MFR_STMICRO: case SPI_FLASH_CFI_MFR_SST: @@ -1125,7 +1128,7 @@ int spi_flash_scan(struct spi_flash *flash) #endif break; default: - debug("SF: Lock ops not supported for %02x flash\n", idcode[0]); + debug("SF: Lock ops not supported for %02x flash\n", JEDEC_MFR(info)); }
/* Compute the flash size */ @@ -1185,9 +1188,10 @@ int spi_flash_scan(struct spi_flash *flash) if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) || (flash->read_cmd == CMD_READ_QUAD_IO_FAST) || (flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) { - ret = set_quad_mode(flash, idcode[0]); + ret = set_quad_mode(flash, info); if (ret) { - debug("SF: Fail to set QEB for %02x\n", idcode[0]); + debug("SF: Fail to set QEB for %02x\n", + JEDEC_MFR(info)); return -EINVAL; } } @@ -1218,7 +1222,7 @@ int spi_flash_scan(struct spi_flash *flash)
/* Configure the BAR - discover bank cmds and read current bank */ #ifdef CONFIG_SPI_FLASH_BAR - ret = spi_flash_read_bar(flash, idcode[0]); + ret = spi_flash_read_bar(flash, info); if (ret < 0) return ret; #endif