diff options
Diffstat (limited to 'drivers/mtd/spi/eon.c')
-rw-r--r-- | drivers/mtd/spi/eon.c | 55 |
1 files changed, 4 insertions, 51 deletions
diff --git a/drivers/mtd/spi/eon.c b/drivers/mtd/spi/eon.c index 4af1e06..0c0b05f 100644 --- a/drivers/mtd/spi/eon.c +++ b/drivers/mtd/spi/eon.c @@ -141,58 +141,11 @@ static int eon_write(struct spi_flash *flash, int eon_erase(struct spi_flash *flash, u32 offset, size_t len) { - /* block erase */ struct eon_spi_flash *eon = to_eon_spi_flash(flash); - unsigned long block_size; - size_t actual; - int ret; - u8 cmd[4]; - - - block_size = eon->params->page_size * eon->params->pages_per_sector - * eon->params->sectors_per_block; - - if (offset % block_size || len % block_size) { - debug("SF: Erase offset/length not multiple of block size\n"); - return -1; - } - - len /= block_size; - cmd[0] = CMD_EN25Q128_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 / block_size) + actual; - ret = spi_flash_cmd(flash->spi, CMD_EN25Q128_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: EON page erase failed\n"); - break; - } - - ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT); - if (ret) - break; - } - - debug("SF: EON: Successfully erased %u bytes @ 0x%x\n", - len * block_size, offset); - - spi_release_bus(flash->spi); - return ret; + return spi_flash_cmd_erase(flash, CMD_EN25Q128_BE, + eon->params->page_size * eon->params->pages_per_sector * + eon->params->sectors_per_block; + offset, len); } struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode) |