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drivers/mtd_spi_nor: enable 32 bit addressing

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This commit is contained in:
Benjamin Valentin 2020-11-02 00:01:00 +01:00
parent e77d12da26
commit dee3ae4ab7
1 changed files with 8 additions and 0 deletions
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8
drivers/mtd_spi_nor/mtd_spi_nor.c
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@ -46,6 +46,9 @@
#define MTD_POWER_UP_WAIT_FOR_ID (0x0F) #define MTD_POWER_UP_WAIT_FOR_ID (0x0F)
#endif #endif
#define SFLASH_CMD_4_BYTE_ADDR (0xB7) /**< enable 32 bit addressing */
#define SFLASH_CMD_3_BYTE_ADDR (0xE9) /**< enable 24 bit addressing */
#define MTD_64K (65536ul) #define MTD_64K (65536ul)
#define MTD_64K_ADDR_MASK (0xFFFF) #define MTD_64K_ADDR_MASK (0xFFFF)
#define MTD_32K (32768ul) #define MTD_32K (32768ul)
@ -378,6 +381,11 @@ static int mtd_spi_nor_power(mtd_dev_t *mtd, enum mtd_power_state power)
return -EIO; return -EIO;
} }
#endif #endif
/* enable 32 bit address mode */
if (dev->params->addr_width == 4) {
mtd_spi_cmd(dev, SFLASH_CMD_4_BYTE_ADDR);
}
break; break;
case MTD_POWER_DOWN: case MTD_POWER_DOWN:
mtd_spi_cmd(dev, dev->params->opcode->sleep); mtd_spi_cmd(dev, dev->params->opcode->sleep);