#include "spi_flash_internal.h"
/* MX25xx-specific commands */
-#define CMD_MX25XX_WREN 0x06 /* Write Enable */
-#define CMD_MX25XX_WRDI 0x04 /* Write Disable */
-#define CMD_MX25XX_RDSR 0x05 /* Read Status Register */
-#define CMD_MX25XX_WRSR 0x01 /* Write Status Register */
-#define CMD_MX25XX_READ 0x03 /* Read Data Bytes */
-#define CMD_MX25XX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
-#define CMD_MX25XX_PP 0x02 /* Page Program */
#define CMD_MX25XX_SE 0x20 /* Sector Erase */
#define CMD_MX25XX_BE 0xD8 /* Block Erase */
#define CMD_MX25XX_CE 0xc7 /* Chip Erase */
-#define CMD_MX25XX_DP 0xb9 /* Deep Power-down */
-#define CMD_MX25XX_RES 0xab /* Release from DP, and Read Signature */
struct macronix_spi_flash_params {
u16 idcode;
- u16 page_size;
- u16 pages_per_sector;
- u16 sectors_per_block;
u16 nr_blocks;
const char *name;
};
static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {
+ {
+ .idcode = 0x2013,
+ .nr_blocks = 8,
+ .name = "MX25L4005",
+ },
+ {
+ .idcode = 0x2014,
+ .nr_blocks = 16,
+ .name = "MX25L8005",
+ },
{
.idcode = 0x2015,
- .page_size = 256,
- .pages_per_sector = 16,
- .sectors_per_block = 16,
.nr_blocks = 32,
.name = "MX25L1605D",
},
{
.idcode = 0x2016,
- .page_size = 256,
- .pages_per_sector = 16,
- .sectors_per_block = 16,
.nr_blocks = 64,
.name = "MX25L3205D",
},
{
.idcode = 0x2017,
- .page_size = 256,
- .pages_per_sector = 16,
- .sectors_per_block = 16,
.nr_blocks = 128,
.name = "MX25L6405D",
},
{
.idcode = 0x2018,
- .page_size = 256,
- .pages_per_sector = 16,
- .sectors_per_block = 16,
.nr_blocks = 256,
.name = "MX25L12805D",
},
{
.idcode = 0x2618,
- .page_size = 256,
- .pages_per_sector = 16,
- .sectors_per_block = 16,
.nr_blocks = 256,
.name = "MX25L12855E",
},
};
+static int macronix_write_status(struct spi_flash *flash, u8 sr)
+{
+ u8 cmd;
+ int ret;
+
+ ret = spi_flash_cmd_write_enable(flash);
+ if (ret < 0) {
+ debug("SF: enabling write failed\n");
+ return ret;
+ }
+
+ cmd = CMD_WRITE_STATUS;
+ ret = spi_flash_cmd_write(flash->spi, &cmd, 1, &sr, 1);
+ if (ret) {
+ debug("SF: fail to write status register\n");
+ return ret;
+ }
+
+ ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
+ if (ret < 0) {
+ debug("SF: write status register timed out\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int macronix_unlock(struct spi_flash *flash)
+{
+ int ret;
+
+ /* Enable status register writing and clear BP# bits */
+ ret = macronix_write_status(flash, 0);
+ if (ret)
+ debug("SF: fail to disable write protection\n");
+
+ 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);
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;
+ flash->page_size = 256;
+ flash->sector_size = 256 * 16 * 16;
flash->size = flash->sector_size * params->nr_blocks;
+ /* Clear BP# bits for read-only flash */
+ macronix_unlock(flash);
+
return flash;
}