diff options
| -rw-r--r-- | drivers/mtd/spi/spi-nor-core.c | 3 | ||||
| -rw-r--r-- | include/linux/mtd/spi-nor.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index 7f1ed1bb36..94dfa97110 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -662,6 +662,9 @@ static int set_4byte(struct spi_nor *nor, const struct flash_info *info, } return status; + case SNOR_MFR_CYPRESS: + cmd = enable ? SPINOR_OP_EN4B : SPINOR_OP_EX4B_CYPRESS; + return nor->write_reg(nor, cmd, NULL, 0); default: /* Spansion style */ nor->cmd_buf[0] = enable << 7; diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index b9d66458a0..6df82bde94 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -123,6 +123,7 @@ #define SPINOR_OP_BRWR 0x17 /* Bank register write */ #define SPINOR_OP_BRRD 0x16 /* Bank register read */ #define SPINOR_OP_CLSR 0x30 /* Clear status register 1 */ +#define SPINOR_OP_EX4B_CYPRESS 0xB8 /* Exit 4-byte mode */ #define SPINOR_OP_RDAR 0x65 /* Read any register */ #define SPINOR_OP_WRAR 0x71 /* Write any register */ #define SPINOR_REG_ADDR_STR1V 0x00800000 |