Hi Siva Durga Prasad,
On 11 March 2015 at 14:47, Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com wrote:
Poll both the Read status and Flag status registers for sucessful erase and program operations for the Micron devices with E_FSR flag set in params table.
There is hw DIE transition from 256 to 512 and 1G, Did you test these?
Signed-off-by: Siva Durga Prasad Paladugu sivadur@xilinx.com
drivers/mtd/spi/sf_ops.c | 32 +++++++++++++++++++++++++------- 1 file changed, 25 insertions(+), 7 deletions(-)
diff --git a/drivers/mtd/spi/sf_ops.c b/drivers/mtd/spi/sf_ops.c index 34bc54e..38592f5 100644 --- a/drivers/mtd/spi/sf_ops.c +++ b/drivers/mtd/spi/sf_ops.c @@ -154,21 +154,17 @@ static void spi_flash_dual_flash(struct spi_flash *flash, u32 *addr) } #endif
-int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) +static int spi_flash_poll_status(struct spi_slave *spi, unsigned long timeout,
u8 cmd, u8 poll_bit){
struct spi_slave *spi = flash->spi; unsigned long timebase; unsigned long flags = SPI_XFER_BEGIN; int ret; u8 status; u8 check_status = 0x0;u8 poll_bit = STATUS_WIP;u8 cmd = flash->poll_cmd;if (cmd == CMD_FLAG_STATUS) {poll_bit = STATUS_PEC;
if (cmd == CMD_FLAG_STATUS) check_status = poll_bit;
}#ifdef CONFIG_SF_DUAL_FLASH if (spi->flags & SPI_XFER_U_PAGE) @@ -204,6 +200,28 @@ int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) return -1; }
+int spi_flash_cmd_wait_ready(struct spi_flash *flash, unsigned long timeout) +{
struct spi_slave *spi = flash->spi;int ret;u8 poll_bit = STATUS_WIP;u8 cmd = CMD_READ_STATUS;ret = spi_flash_poll_status(spi, timeout, cmd, poll_bit);if (ret < 0)return ret;if (flash->poll_cmd == CMD_FLAG_STATUS) {poll_bit = STATUS_PEC;cmd = CMD_FLAG_STATUS;ret = spi_flash_poll_status(spi, timeout, cmd, poll_bit);if (ret < 0)return ret;}return 0;+}
int spi_flash_write_common(struct spi_flash *flash, const u8 *cmd, size_t cmd_len, const void *buf, size_t buf_len) { -- 2.1.1
thanks!