sf: unify write funcs
Once we add a new page_size field for write lengths, we can unify the
write methods for most of the spi flash drivers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c
index fa4cca1..b219b3c 100644
--- a/drivers/mtd/spi/spansion.c
+++ b/drivers/mtd/spi/spansion.c
@@ -133,69 +133,6 @@
},
};
-static int spansion_write(struct spi_flash *flash,
- u32 offset, size_t len, const void *buf)
-{
- struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
- unsigned long page_addr;
- unsigned long byte_addr;
- unsigned long page_size;
- size_t chunk_len;
- size_t actual;
- int ret;
- u8 cmd[4];
-
- page_size = spsn->params->page_size;
- page_addr = offset / page_size;
- byte_addr = offset % page_size;
-
- 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 += chunk_len) {
- chunk_len = min(len - actual, page_size - byte_addr);
-
- cmd[0] = CMD_S25FLXX_PP;
- cmd[1] = page_addr >> 8;
- cmd[2] = page_addr;
- cmd[3] = byte_addr;
-
- debug
- ("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %d\n",
- buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len);
-
- ret = spi_flash_cmd_write_enable(flash);
- if (ret < 0) {
- debug("SF: Enabling Write failed\n");
- break;
- }
-
- ret = spi_flash_cmd_write(flash->spi, cmd, 4,
- buf + actual, chunk_len);
- if (ret < 0) {
- debug("SF: SPANSION Page Program failed\n");
- break;
- }
-
- ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
- if (ret)
- break;
-
- page_addr++;
- byte_addr = 0;
- }
-
- debug("SF: SPANSION: Successfully programmed %u bytes @ 0x%x\n",
- len, offset);
-
- spi_release_bus(flash->spi);
- return ret;
-}
-
static int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
{
return spi_flash_cmd_erase(flash, CMD_S25FLXX_SE, offset, len);
@@ -234,9 +171,10 @@
spsn->flash.spi = spi;
spsn->flash.name = params->name;
- spsn->flash.write = spansion_write;
+ spsn->flash.write = spi_flash_cmd_write_multi;
spsn->flash.erase = spansion_erase;
spsn->flash.read = spi_flash_cmd_read_fast;
+ spsn->flash.page_size = params->page_size;
spsn->flash.sector_size = params->page_size * params->pages_per_sector;
spsn->flash.size = spsn->flash.sector_size * params->nr_sectors;