sf: Enable byte program support
Enabled byte program support for sst flashes in sf.
Few controllers will only support BP, so this patch gives
a tx transfer flag to set the BP so-that sf will operate
on byte program transfer.
A new TX operation mode SPI_OPM_TX_BP is introduced for such SPI
controller to use byte program op for SST flash.
Signed-off-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index fb53cb0..785f7a9 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -40,10 +40,13 @@
SECT_4K = 1 << 0,
SECT_32K = 1 << 1,
E_FSR = 1 << 2,
- WR_QPP = 1 << 3,
+ SST_BP = 1 << 3,
SST_WP = 1 << 4,
+ WR_QPP = 1 << 5,
};
+#define SST_WR (SST_BP | SST_WP)
+
#define SPI_FLASH_3B_ADDR_LEN 3
#define SPI_FLASH_CMD_LEN (1 + SPI_FLASH_3B_ADDR_LEN)
#define SPI_FLASH_16MB_BOUN 0x1000000