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path: root/drivers/mtd/spi/winbond.c
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Diffstat (limited to 'drivers/mtd/spi/winbond.c')
-rw-r--r--drivers/mtd/spi/winbond.c51
1 files changed, 4 insertions, 47 deletions
diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index 4452355..d8c1cb1 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -24,8 +24,6 @@
#define CMD_W25_DP 0xb9 /* Deep Power-down */
#define CMD_W25_RES 0xab /* Release from DP, and Read Signature */
-#define WINBOND_SR_WIP (1 << 0) /* Write-in-Progress */
-
struct winbond_spi_flash_params {
uint16_t id;
/* Log2 of page size in power-of-two mode */
@@ -107,43 +105,6 @@ static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
},
};
-static int winbond_wait_ready(struct spi_flash *flash, unsigned long timeout)
-{
- struct spi_slave *spi = flash->spi;
- unsigned long timebase;
- int ret;
- u8 status;
- u8 cmd[4] = { CMD_W25_RDSR, 0xff, 0xff, 0xff };
-
- ret = spi_xfer(spi, 32, &cmd[0], NULL, SPI_XFER_BEGIN);
- if (ret) {
- debug("SF: Failed to send command %02x: %d\n", cmd, ret);
- return ret;
- }
-
- timebase = get_timer(0);
- do {
- ret = spi_xfer(spi, 8, NULL, &status, 0);
- if (ret) {
- debug("SF: Failed to get status for cmd %02x: %d\n", cmd, ret);
- return -1;
- }
-
- if ((status & WINBOND_SR_WIP) == 0)
- break;
-
- } while (get_timer(timebase) < timeout);
-
- spi_xfer(spi, 0, NULL, NULL, SPI_XFER_END);
-
- if ((status & WINBOND_SR_WIP) == 0)
- return 0;
-
- debug("SF: Timed out on command %02x: %d\n", cmd, ret);
- /* Timed out */
- return -1;
-}
-
/*
* Assemble the address part of a command for Winbond devices in
* non-power-of-two page size mode.
@@ -230,11 +191,9 @@ static int winbond_write(struct spi_flash *flash,
goto out;
}
- ret = winbond_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
- if (ret < 0) {
- debug("SF: Winbond page programming timed out\n");
+ ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
+ if (ret)
goto out;
- }
page_addr++;
byte_addr = 0;
@@ -298,11 +257,9 @@ int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)
goto out;
}
- ret = winbond_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
- if (ret < 0) {
- debug("SF: Winbond sector erase timed out\n");
+ ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
+ if (ret)
goto out;
- }
}
debug("SF: Winbond: Successfully erased %u bytes @ 0x%x\n",