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/stmicro.c b/drivers/mtd/spi/stmicro.c
index 80d97b4..8106e7c 100644
--- a/drivers/mtd/spi/stmicro.c
+++ b/drivers/mtd/spi/stmicro.c
@@ -134,69 +134,6 @@ static const struct stmicro_spi_flash_params stmicro_spi_flash_table[] = {
 	},
 };
 
-static int stmicro_write(struct spi_flash *flash,
-			 u32 offset, size_t len, const void *buf)
-{
-	struct stmicro_spi_flash *stm = to_stmicro_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 = stm->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_M25PXX_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: STMicro 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: STMicro: Successfully programmed %u bytes @ 0x%x\n",
-	      len, offset);
-
-	spi_release_bus(flash->spi);
-	return ret;
-}
-
 static int stmicro_erase(struct spi_flash *flash, u32 offset, size_t len)
 {
 	return spi_flash_cmd_erase(flash, CMD_M25PXX_SE, offset, len);
@@ -243,9 +180,10 @@ struct spi_flash *spi_flash_probe_stmicro(struct spi_slave *spi, u8 * idcode)
 	stm->flash.spi = spi;
 	stm->flash.name = params->name;
 
-	stm->flash.write = stmicro_write;
+	stm->flash.write = spi_flash_cmd_write_multi;
 	stm->flash.erase = stmicro_erase;
 	stm->flash.read = spi_flash_cmd_read_fast;
+	stm->flash.page_size = params->page_size;
 	stm->flash.sector_size = params->page_size * params->pages_per_sector;
 	stm->flash.size = stm->flash.sector_size * params->nr_sectors;