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| author | Mike Frysinger <vapier@gentoo.org> | 2012-03-04 22:35:50 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2012-03-04 22:35:50 -0500 |
| commit | c4e932ce732b9d5f9d6e0a0559b7f6c8610a8ac9 (patch) | |
| tree | 20ec7705475e9a364f1a1054c52b55d26d79ffe9 /drivers/mtd/spi/spi_flash_internal.h | |
| parent | a4ed3b653163367628d4ad173dfe3faf388da0ac (diff) | |
| download | olio-uboot-2014.01-c4e932ce732b9d5f9d6e0a0559b7f6c8610a8ac9.tar.xz olio-uboot-2014.01-c4e932ce732b9d5f9d6e0a0559b7f6c8610a8ac9.zip | |
sf: unify erase commands
Analysis of the flash drivers shows that they all use 0x20 if the erase
size is 4KiB, or 0xd8 if it's larger. So with this info in hand, we can
unify all the erase functionality in one place.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'drivers/mtd/spi/spi_flash_internal.h')
| -rw-r--r-- | drivers/mtd/spi/spi_flash_internal.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h index 0c7824979..3c6bccf0c 100644 --- a/drivers/mtd/spi/spi_flash_internal.h +++ b/drivers/mtd/spi/spi_flash_internal.h @@ -23,6 +23,10 @@ #define CMD_WRITE_DISABLE 0x04 #define CMD_READ_STATUS 0x05 #define CMD_WRITE_ENABLE 0x06 +#define CMD_ERASE_4K 0x20 +#define CMD_ERASE_32K 0x52 +#define CMD_ERASE_64K 0xd8 +#define CMD_ERASE_CHIP 0xc7 /* Common status */ #define STATUS_WIP 0x01 @@ -88,8 +92,7 @@ int spi_flash_cmd_poll_bit(struct spi_flash *flash, unsigned long timeout, int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout); /* Erase sectors. */ -int spi_flash_cmd_erase(struct spi_flash *flash, u8 erase_cmd, - u32 offset, size_t len); +int spi_flash_cmd_erase(struct spi_flash *flash, u32 offset, size_t len); /* Manufacturer-specific probe functions */ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode); |