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| author | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> | 2014-01-11 16:50:45 +0530 |
|---|---|---|
| committer | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> | 2014-01-11 16:50:45 +0530 |
| commit | ff063ed4808e4ead3021eaf53ee4fdb80c9e91f8 (patch) | |
| tree | 048ac50a568a8d739a9a8528bbaf7018c27b6aa3 /drivers/mtd/spi/sf_ops.c | |
| parent | c4ba0d82d329791c3f0456d88e93032b11e48535 (diff) | |
| download | u-boot-imx-ff063ed4808e4ead3021eaf53ee4fdb80c9e91f8.zip u-boot-imx-ff063ed4808e4ead3021eaf53ee4fdb80c9e91f8.tar.gz u-boot-imx-ff063ed4808e4ead3021eaf53ee4fdb80c9e91f8.tar.bz2 | |
sf: Discover read dummy_byte
Discovered the read dummy_byte based on the
configured read command.
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Diffstat (limited to 'drivers/mtd/spi/sf_ops.c')
| -rw-r--r-- | drivers/mtd/spi/sf_ops.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index 827f719..6adee32 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -9,6 +9,7 @@ */ #include <common.h> +#include <malloc.h> #include <spi.h> #include <spi_flash.h> #include <watchdog.h> @@ -216,7 +217,7 @@ int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd, int spi_flash_cmd_erase_ops(struct spi_flash *flash, u32 offset, size_t len) { u32 erase_size; - u8 cmd[4]; + u8 cmd[SPI_FLASH_CMD_LEN]; int ret = -1; erase_size = flash->erase_size; @@ -255,7 +256,7 @@ int spi_flash_cmd_write_ops(struct spi_flash *flash, u32 offset, { unsigned long byte_addr, page_size; size_t chunk_len, actual; - u8 cmd[4]; + u8 cmd[SPI_FLASH_CMD_LEN]; int ret = -1; page_size = flash->page_size; @@ -317,7 +318,7 @@ int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd, int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, size_t len, void *data) { - u8 cmd[5], bank_sel = 0; + u8 *cmd, cmdsz, bank_sel = 0; u32 remain_len, read_len; int ret = -1; @@ -335,9 +336,11 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, return 0; } - cmd[0] = flash->read_cmd; - cmd[4] = 0x00; + cmdsz = SPI_FLASH_CMD_LEN + flash->dummy_byte; + cmd = malloc(cmdsz); + memset(cmd, 0, cmdsz); + cmd[0] = flash->read_cmd; while (len) { #ifdef CONFIG_SPI_FLASH_BAR bank_sel = offset / SPI_FLASH_16MB_BOUN; @@ -356,8 +359,7 @@ int spi_flash_cmd_read_ops(struct spi_flash *flash, u32 offset, spi_flash_addr(offset, cmd); - ret = spi_flash_read_common(flash, cmd, sizeof(cmd), - data, read_len); + ret = spi_flash_read_common(flash, cmd, cmdsz, data, read_len); if (ret < 0) { debug("SF: read failed\n"); break; |