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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>
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@ -66,6 +66,7 @@ enum spi_nor_option_flags {
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#define SPI_FLASH_CFI_MFR_MACRONIX 0xc2
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#define SPI_FLASH_CFI_MFR_SST 0xbf
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#define SPI_FLASH_CFI_MFR_WINBOND 0xef
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#define SPI_FLASH_CFI_MFR_ATMEL 0x1f
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/* Erase commands */
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#define CMD_ERASE_4K 0x20
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@ -941,11 +941,10 @@ int spi_flash_scan(struct spi_slave *spi, struct spi_flash *flash)
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}
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/* Flash powers up read-only, so clear BP# bits */
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#if defined(CONFIG_SPI_FLASH_ATMEL) || \
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defined(CONFIG_SPI_FLASH_MACRONIX) || \
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defined(CONFIG_SPI_FLASH_SST)
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if (idcode[0] == SPI_FLASH_CFI_MFR_ATMEL ||
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idcode[0] == SPI_FLASH_CFI_MFR_MACRONIX ||
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idcode[0] == SPI_FLASH_CFI_MFR_SST)
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write_sr(flash, 0);
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#endif
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/* Assign spi data */
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flash->spi = spi;
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