diff options
| -rw-r--r-- | flash.h | 1 | ||||
| -rw-r--r-- | spi.h | 10 | ||||
| -rw-r--r-- | spi25_statusreg.c | 8 |
3 files changed, 19 insertions, 0 deletions
@@ -174,6 +174,7 @@ enum flash_reg { INVALID_REG = 0, STATUS1, STATUS2, + STATUS3, MAX_REGISTERS }; @@ -136,6 +136,11 @@ #define JEDEC_RDSR2_OUTSIZE 0x01 #define JEDEC_RDSR2_INSIZE 0x01 +/* Read Status Register 3 */ +#define JEDEC_RDSR3 0x15 +#define JEDEC_RDSR3_OUTSIZE 0x01 +#define JEDEC_RDSR3_INSIZE 0x01 + /* Status Register Bits */ #define SPI_SR_WIP (0x01 << 0) #define SPI_SR_WEL (0x01 << 1) @@ -158,6 +163,11 @@ #define JEDEC_WRSR2_OUTSIZE 0x02 #define JEDEC_WRSR2_INSIZE 0x00 +/* Write Status Register 3 */ +#define JEDEC_WRSR3 0x11 +#define JEDEC_WRSR3_OUTSIZE 0x02 +#define JEDEC_WRSR3_INSIZE 0x00 + /* Enter 4-byte Address Mode */ #define JEDEC_ENTER_4_BYTE_ADDR_MODE 0xB7 diff --git a/spi25_statusreg.c b/spi25_statusreg.c index 6b168398..0f430565 100644 --- a/spi25_statusreg.c +++ b/spi25_statusreg.c @@ -66,6 +66,11 @@ int spi_write_register(const struct flashctx *flash, enum flash_reg reg, uint8_t } msg_cerr("Cannot write SR2: unsupported by chip\n"); return 1; + case STATUS3: + write_cmd[0] = JEDEC_WRSR3; + write_cmd[1] = value; + write_cmd_len = JEDEC_WRSR3_OUTSIZE; + break; default: msg_cerr("Cannot write register: unknown register\n"); return 1; @@ -153,6 +158,9 @@ int spi_read_register(const struct flashctx *flash, enum flash_reg reg, uint8_t } msg_cerr("Cannot read SR2: unsupported by chip\n"); return 1; + case STATUS3: + read_cmd = JEDEC_RDSR3; + break; default: msg_cerr("Cannot read register: unknown register\n"); return 1; |