diff options
Diffstat (limited to 'drivers/mtd/spi/winbond.c')
| -rw-r--r-- | drivers/mtd/spi/winbond.c | 71 | 
1 files changed, 3 insertions, 68 deletions
| diff --git a/drivers/mtd/spi/winbond.c b/drivers/mtd/spi/winbond.c index 10fabf5e3..3db0cb022 100644 --- a/drivers/mtd/spi/winbond.c +++ b/drivers/mtd/spi/winbond.c @@ -105,71 +105,6 @@ static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {  	},  }; -static int winbond_write(struct spi_flash *flash, -		u32 offset, size_t len, const void *buf) -{ -	struct winbond_spi_flash *stm = to_winbond_spi_flash(flash); -	unsigned long page_addr; -	unsigned long byte_addr; -	unsigned long page_size; -	unsigned int page_shift; -	size_t chunk_len; -	size_t actual; -	int ret; -	u8 cmd[4]; - -	page_shift = stm->params->l2_page_size; -	page_size = (1 << page_shift); -	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; -	} - -	for (actual = 0; actual < len; actual += chunk_len) { -		chunk_len = min(len - actual, page_size - byte_addr); - -		cmd[0] = CMD_W25_PP; -		cmd[1] = page_addr >> (16 - page_shift); -		cmd[2] = page_addr << (page_shift - 8) | (byte_addr >> 8); -		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"); -			goto out; -		} - -		ret = spi_flash_cmd_write(flash->spi, cmd, 4, -				buf + actual, chunk_len); -		if (ret < 0) { -			debug("SF: Winbond Page Program failed\n"); -			goto out; -		} - -		ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT); -		if (ret) -			goto out; - -		page_addr++; -		byte_addr = 0; -	} - -	debug("SF: Winbond: Successfully programmed %u bytes @ 0x%x\n", -			len, offset); -	ret = 0; - -out: -	spi_release_bus(flash->spi); -	return ret; -} -  static int winbond_erase(struct spi_flash *flash, u32 offset, size_t len)  {  	return spi_flash_cmd_erase(flash, CMD_W25_SE, offset, len); @@ -207,11 +142,11 @@ struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)  	/* Assuming power-of-two page size initially. */  	page_size = 1 << params->l2_page_size; -	stm->flash.write = winbond_write; +	stm->flash.write = spi_flash_cmd_write_multi;  	stm->flash.erase = winbond_erase;  	stm->flash.read = spi_flash_cmd_read_fast; -	stm->flash.sector_size = (1 << stm->params->l2_page_size) * -		stm->params->pages_per_sector; +	stm->flash.page_size = page_size; +	stm->flash.sector_size = page_size * stm->params->pages_per_sector;  	stm->flash.size = page_size * params->pages_per_sector  				* params->sectors_per_block  				* params->nr_blocks; |