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authorMike Frysinger <vapier@gentoo.org>2011-04-23 23:05:55 +0000
committerWolfgang Denk <wd@denx.de>2011-07-26 16:28:21 +0200
commit2744a4e688851fc3b5e2937bf047100c85daeb43 (patch)
tree23b2d7598a0601ed7097883cc71a14b58d9bb1ae /drivers/mtd/spi/spi_flash_internal.h
parentd8e392d95f20cb21767b99d92a9a7f852b0fec63 (diff)
sf: unify write enable commands
Every spi flash uses the same write enable command, so unify this in the common code. 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.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h
index fc109cef53..6665bed199 100644
--- a/drivers/mtd/spi/spi_flash_internal.h
+++ b/drivers/mtd/spi/spi_flash_internal.h
@@ -46,6 +46,14 @@ int spi_flash_cmd_write(struct spi_slave *spi, const u8 *cmd, size_t cmd_len,
const void *data, size_t data_len);
/*
+ * Enable writing on the SPI flash.
+ */
+static inline int spi_flash_cmd_write_enable(struct spi_flash *flash)
+{
+ return spi_flash_cmd(flash->spi, CMD_WRITE_ENABLE, NULL, 0);
+}
+
+/*
* Same as spi_flash_cmd_read() except it also claims/releases the SPI
* bus. Used as common part of the ->read() operation.
*/