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sf: probe: Add support for SST_WP

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Most of the SST flashes needs to write up using SST_WP, AAI
Word Program, so added a flag param on spi_flash_params table.

SST flashes, which supports SST_WP need to use a WP write
sst_write_wp instead of common flash write.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Jagannadha Sutradharudu Teki 2013-10-02 19:34:53 +05:30
parent b7797422e3
commit 10ca45d005
4 changed files with 188 additions and 77 deletions
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7
include/spi_flash.h
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@ -17,6 +17,13 @@
#include <linux/types.h>
#include <linux/compiler.h>
/* SST specific macros */
#ifdef CONFIG_SPI_FLASH_SST
# define SST_WP 0x01 /* Supports AAI word program */
# define CMD_SST_BP 0x02 /* Byte Program */
# define CMD_SST_AAI_WP 0xAD /* Auto Address Incr Word Program */
#endif
struct spi_flash {
struct spi_slave *spi;