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>

1 files changed, 2 insertions, 64 deletions

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 const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
 	},
 };
 
-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 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
 	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;