[U-Boot] [PATCH v4 07/17] sf: Add SPI_FLASH_MAX_ID_LEN
Jagan Teki
jteki at openedev.com
Sun Sep 25 21:52:55 CEST 2016
Add id length of 5 bytes numerical value to macro.
Cc: Simon Glass <sjg at chromium.org>
Cc: Bin Meng <bmeng.cn at gmail.com>
Cc: York Sun <york.sun at nxp.com>
Cc: Vignesh R <vigneshr at ti.com>
Cc: Mugunthan V N <mugunthanvnm at ti.com>
Cc: Michal Simek <michal.simek at xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
Signed-off-by: Jagan Teki <jteki at openedev.com>
---
drivers/mtd/spi/sf_internal.h | 3 ++-
drivers/mtd/spi/spi_flash.c | 4 ++--
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/spi/sf_internal.h b/drivers/mtd/spi/sf_internal.h
index 527c252..437ac8a 100644
--- a/drivers/mtd/spi/sf_internal.h
+++ b/drivers/mtd/spi/sf_internal.h
@@ -108,6 +108,7 @@ int sst_write_bp(struct spi_flash *flash, u32 offset, size_t len,
#define JEDEC_MFR(info) ((info)->id[0])
#define JEDEC_ID(info) (((info)->id[1]) << 8 | ((info)->id[2]))
#define JEDEC_EXT(info) (((info)->id[3]) << 8 | ((info)->id[4]))
+#define SPI_FLASH_MAX_ID_LEN 5
struct spi_flash_info {
const char *name;
@@ -117,7 +118,7 @@ struct spi_flash_info {
* The first three bytes are the JEDIC ID.
* JEDEC ID zero means "no ID" (mostly older chips).
*/
- u8 id[5];
+ u8 id[SPI_FLASH_MAX_ID_LEN];
u8 id_len;
/* The size listed here is what works with SPINOR_OP_SE, which isn't
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 0777bb5..ba884d7 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -928,10 +928,10 @@ static int micron_quad_enable(struct spi_flash *flash)
static const struct spi_flash_info *spi_flash_read_id(struct spi_flash *flash)
{
int tmp;
- u8 id[5];
+ u8 id[SPI_FLASH_MAX_ID_LEN];
const struct spi_flash_info *info;
- tmp = spi_flash_cmd(flash->spi, CMD_READ_ID, id, 5);
+ tmp = spi_flash_cmd(flash->spi, CMD_READ_ID, id, SPI_FLASH_MAX_ID_LEN);
if (tmp < 0) {
printf("SF: error %d reading JEDEC ID\n", tmp);
return ERR_PTR(tmp);
--
2.7.4
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