diff options
Diffstat (limited to 'drivers/mtd/spi/macronix.c')
-rw-r--r-- | drivers/mtd/spi/macronix.c | 60 |
1 files changed, 4 insertions, 56 deletions
diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c index 291fd17..573e1db 100644 --- a/drivers/mtd/spi/macronix.c +++ b/drivers/mtd/spi/macronix.c @@ -198,62 +198,10 @@ static int macronix_write(struct spi_flash *flash, int macronix_erase(struct spi_flash *flash, u32 offset, size_t len) { struct macronix_spi_flash *mcx = to_macronix_spi_flash(flash); - unsigned long sector_size; - 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. - */ - - sector_size = mcx->params->page_size * mcx->params->pages_per_sector - * mcx->params->sectors_per_block; - - 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_MX25XX_BE; - cmd[2] = 0x00; - cmd[3] = 0x00; - - ret = spi_claim_bus(flash->spi); - if (ret) { - debug("SF: Unable to claim SPI bus\n"); - return ret; - } - - ret = 0; - for (actual = 0; actual < len; actual++) { - cmd[1] = (offset / sector_size) + actual; - - ret = spi_flash_cmd(flash->spi, CMD_MX25XX_WREN, NULL, 0); - if (ret < 0) { - debug("SF: Enabling Write failed\n"); - break; - } - - ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0); - if (ret < 0) { - debug("SF: Macronix page erase failed\n"); - break; - } - - ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT); - if (ret) - break; - } - - debug("SF: Macronix: Successfully erased %u bytes @ 0x%x\n", - len * sector_size, offset); - - spi_release_bus(flash->spi); - return ret; + return spi_flash_cmd_erase(flash, CMD_MX25XX_BE, + mcx->params->page_size * mcx->params->pages_per_sector * + mcx->params->sectors_per_block, + offset, len); } struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode) |