diff options
Diffstat (limited to 'drivers/mtd/spi/winbond.c')
-rw-r--r-- | drivers/mtd/spi/winbond.c | 61 |
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) |