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| author | Jagan Teki <jteki@openedev.com> | 2015-09-30 02:01:23 +0530 |
|---|---|---|
| committer | Jagan Teki <jteki@openedev.com> | 2015-12-11 22:12:24 +0530 |
| commit | 6f9d670d8e9a77553b00c293fd1a8f913a9d7be3 (patch) | |
| tree | fdfcd6c6f58a0757d2c821687141ca7adc074893 /drivers/mtd/spi | |
| parent | cb37518516420c581877a209a7841f2a5fe6382d (diff) | |
| download | blackbird-obmc-uboot-6f9d670d8e9a77553b00c293fd1a8f913a9d7be3.tar.gz blackbird-obmc-uboot-6f9d670d8e9a77553b00c293fd1a8f913a9d7be3.zip | |
sf: Flash power up read-only based on idcode0
Using macro's for flash power up read-only access code
leads wrong behaviour hence use idcode0 for runtime
detection, hence the flash which require this functionality
gets detected at runtime.
Tested-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Diffstat (limited to 'drivers/mtd/spi')
| -rw-r--r-- | drivers/mtd/spi/sf_internal.h | 1 | ||||
| -rw-r--r-- | drivers/mtd/spi/sf_ops.c | 7 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h index 8f586eed0d..b8692c6147 100644 --- a/drivers/mtd/spi/sf_internal.h +++ b/drivers/mtd/spi/sf_internal.h @@ -66,6 +66,7 @@ enum spi_nor_option_flags { #define SPI_FLASH_CFI_MFR_MACRONIX 0xc2 #define SPI_FLASH_CFI_MFR_SST 0xbf #define SPI_FLASH_CFI_MFR_WINBOND 0xef +#define SPI_FLASH_CFI_MFR_ATMEL 0x1f /* Erase commands */ #define CMD_ERASE_4K 0x20 diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index 853759eeb5..e5514ab00f 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -941,11 +941,10 @@ int spi_flash_scan(struct spi_slave *spi, struct spi_flash *flash) } /* Flash powers up read-only, so clear BP# bits */ -#if defined(CONFIG_SPI_FLASH_ATMEL) || \ - defined(CONFIG_SPI_FLASH_MACRONIX) || \ - defined(CONFIG_SPI_FLASH_SST) + if (idcode[0] == SPI_FLASH_CFI_MFR_ATMEL || + idcode[0] == SPI_FLASH_CFI_MFR_MACRONIX || + idcode[0] == SPI_FLASH_CFI_MFR_SST) write_sr(flash, 0); -#endif /* Assign spi data */ flash->spi = spi; |
