[PATCH 4/4] spi: intel: Add support for SFDP opcode

[Mika Westerberg <mika.westerberg@linux.intel.com>]

The Intel SPI-NOR controller supports SFDP (Serial Flash Discoverable
Parameter) opcode so add it to the list of supported opcodes.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/spi/spi-intel.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/spi/spi-intel.c b/drivers/spi/spi-intel.c
index 8b07e41daafe..049c81717101 100644
--- a/drivers/spi/spi-intel.c
+++ b/drivers/spi/spi-intel.c
@@ -33,6 +33,7 @@
 #define HSFSTS_CTL_FCYCLE_WRITE		(0x02 << HSFSTS_CTL_FCYCLE_SHIFT)
 #define HSFSTS_CTL_FCYCLE_ERASE		(0x03 << HSFSTS_CTL_FCYCLE_SHIFT)
 #define HSFSTS_CTL_FCYCLE_ERASE_64K	(0x04 << HSFSTS_CTL_FCYCLE_SHIFT)
+#define HSFSTS_CTL_FCYCLE_RDSFDP	(0x05 << HSFSTS_CTL_FCYCLE_SHIFT)
 #define HSFSTS_CTL_FCYCLE_RDID		(0x06 << HSFSTS_CTL_FCYCLE_SHIFT)
 #define HSFSTS_CTL_FCYCLE_WRSR		(0x07 << HSFSTS_CTL_FCYCLE_SHIFT)
 #define HSFSTS_CTL_FCYCLE_RDSR		(0x08 << HSFSTS_CTL_FCYCLE_SHIFT)
@@ -920,6 +921,11 @@ static const struct spi_controller_mem_ops intel_spi_mem_ops = {
 			      INTEL_SPI_OP_DATA_OUT(1),			\
 			      intel_spi_write_reg,			\
 			      HSFSTS_CTL_FCYCLE_WRSR),			\
+	INTEL_SPI_MEM_OP_REPL(SPI_MEM_OP_CMD(SPINOR_OP_RDSFDP, 1),	\
+			      INTEL_SPI_OP_ADDR(3),			\
+			      INTEL_SPI_OP_DATA_IN(1),			\
+			      intel_spi_read_reg,			\
+			      HSFSTS_CTL_FCYCLE_RDSFDP),		\
 	/* Normal read */						\
 	INTEL_SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_READ, 1),		\
 			 INTEL_SPI_OP_ADDR(3),				\
-- 
2.35.1