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sf: Discover read dummy_byte

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Discovered the read dummy_byte based on the
configured read command.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Jagannadha Sutradharudu Teki
2014-01-11 16:50:45 +05:30
parent c4ba0d82d3
commit ff063ed480
4 changed files with 32 additions and 7 deletions
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2
include/spi_flash.h
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@@ -72,6 +72,7 @@ extern const struct spi_flash_params spi_flash_params_table[];
* @erase_cmd: Erase cmd 4K, 32K, 64K
* @read_cmd: Read cmd - Array Fast, Extn read and quad read.
* @write_cmd: Write cmd - page and quad program.
* @dummy_byte: Dummy cycles for read operation.
* @memory_map: Address of read-only SPI flash access
* @read: Flash read ops: Read len bytes at offset into buf
* Supported cmds: Fast Array Read
@@ -98,6 +99,7 @@ struct spi_flash {
u8 erase_cmd;
u8 read_cmd;
u8 write_cmd;
u8 dummy_byte;
void *memory_map;
int (*read)(struct spi_flash *flash, u32 offset, size_t len, void *buf);