[PATCH v2 3/3] spi: spi-qpic-snand: Handle Macronix quad read opcode 0x6b
Md Sadre Alam <[email protected]>
| Newsgroups | org.kernel.vger.linux-spi,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Macronix SPI-NAND devices use opcode 0x6b for quad output cache reads, while most other devices use opcode 0xeb. The QPIC SPI-NAND driver does not currently recognize opcode 0x6b, causing read operations to fail when Macronix devices select this cache read variant. Add the Macronix-specific read opcode to the command mapping logic and treat it the same as the existing quad read operations. This allows Macronix SPI-NAND devices to operate correctly in quad read mode. Signed-off-by: Md Sadre Alam <[email protected]> --- drivers/spi/spi-qpic-snand.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/spi/spi-qpic-snand.c b/drivers/spi/spi-qpic-snand.c index 6ad2f96dde8c..61b1f2eb19ce 100644 --- a/drivers/spi/spi-qpic-snand.c +++ b/drivers/spi/spi-qpic-snand.c @@ -52,6 +52,7 @@ #define SPINAND_READ_CACHE 0x0b #define SPINAND_READ 0x13 #define SPINAND_READ_QUAD 0xeb +#define SPINAND_READ_MACRONIX 0x6b #define SPINAND_ERASE 0xd8 #define SPINAND_WRITE_EN 0x06 #define SPINAND_PROGRAM_EXECUTE 0x10 @@ -1036,6 +1037,7 @@ static int qcom_spi_cmd_mapping(struct qcom_nand_controller *snandc, case SPINAND_READ: case SPINAND_READ_QUAD: case SPINAND_READ_CACHE: + case SPINAND_READ_MACRONIX: if (snandc->qspi->raw_rw) { *cmd = (PAGE_ACC | LAST_PAGE | transfer_mode | SPI_WP | SPI_HOLD | OP_PAGE_READ); -- 2.34.1