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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.c61
1 files changed, 3 insertions, 58 deletions
diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c
index d8c1cb12d9..8470a826bf 100644
--- a/drivers/mtd/spi/winbond.c
+++ b/drivers/mtd/spi/winbond.c
@@ -211,64 +211,9 @@ out:
int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)
{
struct winbond_spi_flash *stm = to_winbond_spi_flash(flash);
- unsigned long sector_size;
- unsigned int page_shift;
- size_t actual;
- int ret;
- u8 cmd[4];
-
- /*
- * This function currently uses sector erase only.
- * probably speed things up by using bulk erase
- * when possible.
- */
-
- page_shift = stm->params->l2_page_size;
- sector_size = (1 << page_shift) * stm->params->pages_per_sector;
-
- if (offset % sector_size || len % sector_size) {
- debug("SF: Erase offset/length not multiple of sector size\n");
- return -1;
- }
-
- len /= sector_size;
- cmd[0] = CMD_W25_SE;
-
- ret = spi_claim_bus(flash->spi);
- if (ret) {
- debug("SF: Unable to claim SPI bus\n");
- return ret;
- }
-
- for (actual = 0; actual < len; actual++) {
- winbond_build_address(stm, &cmd[1], offset + actual * sector_size);
- printf("Erase: %02x %02x %02x %02x\n",
- cmd[0], cmd[1], cmd[2], cmd[3]);
-
- ret = spi_flash_cmd(flash->spi, CMD_W25_WREN, NULL, 0);
- if (ret < 0) {
- debug("SF: Enabling Write failed\n");
- goto out;
- }
-
- ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
- if (ret < 0) {
- debug("SF: Winbond sector erase failed\n");
- goto out;
- }
-
- 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",
- len * sector_size, offset);
- ret = 0;
-
-out:
- spi_release_bus(flash->spi);
- return ret;
+ return spi_flash_cmd_erase(flash, CMD_W25_SE,
+ (1 << stm->params->l2_page_size) * stm->params->pages_per_sector,
+ offset, len);
}
struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)