diff options
Diffstat (limited to 'drivers/mtd/spi/macronix.c')
| -rw-r--r-- | drivers/mtd/spi/macronix.c | 98 | 
1 files changed, 12 insertions, 86 deletions
| diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c index ff66f2aa3..e6895620a 100644 --- a/drivers/mtd/spi/macronix.c +++ b/drivers/mtd/spi/macronix.c @@ -58,17 +58,6 @@ struct macronix_spi_flash_params {  	const char *name;  }; -struct macronix_spi_flash { -	struct spi_flash flash; -	const struct macronix_spi_flash_params *params; -}; - -static inline struct macronix_spi_flash *to_macronix_spi_flash(struct spi_flash -							       *flash) -{ -	return container_of(flash, struct macronix_spi_flash, flash); -} -  static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {  	{  		.idcode = 0x2015, @@ -112,69 +101,6 @@ static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {  	},  }; -static int macronix_write(struct spi_flash *flash, -			  u32 offset, size_t len, const void *buf) -{ -	struct macronix_spi_flash *mcx = to_macronix_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 = mcx->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_MX25XX_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(flash->spi, CMD_MX25XX_WREN, NULL, 0); -		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: Macronix 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: Macronix: Successfully programmed %u bytes @ 0x%x\n", -	      len, offset); - -	spi_release_bus(flash->spi); -	return ret; -} -  static int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)  {  	return spi_flash_cmd_erase(flash, CMD_MX25XX_BE, offset, len); @@ -183,7 +109,7 @@ static int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)  struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)  {  	const struct macronix_spi_flash_params *params; -	struct macronix_spi_flash *mcx; +	struct spi_flash *flash;  	unsigned int i;  	u16 id = idcode[2] | idcode[1] << 8; @@ -198,22 +124,22 @@ struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)  		return NULL;  	} -	mcx = malloc(sizeof(*mcx)); -	if (!mcx) { +	flash = malloc(sizeof(*flash)); +	if (!flash) {  		debug("SF: Failed to allocate memory\n");  		return NULL;  	} -	mcx->params = params; -	mcx->flash.spi = spi; -	mcx->flash.name = params->name; +	flash->spi = spi; +	flash->name = params->name; -	mcx->flash.write = macronix_write; -	mcx->flash.erase = macronix_erase; -	mcx->flash.read = spi_flash_cmd_read_fast; -	mcx->flash.sector_size = params->page_size * params->pages_per_sector +	flash->write = spi_flash_cmd_write_multi; +	flash->erase = macronix_erase; +	flash->read = spi_flash_cmd_read_fast; +	flash->page_size = params->page_size; +	flash->sector_size = params->page_size * params->pages_per_sector  		* params->sectors_per_block; -	mcx->flash.size = mcx->flash.sector_size * params->nr_blocks; +	flash->size = flash->sector_size * params->nr_blocks; -	return &mcx->flash; +	return flash;  } |