diff mbox series

[2/3] mtd: spi-nor: Add additional octal-mode flags to be checked during SFDP

Message ID 20221201181532.255449-3-nathan.morrison@timesys.com
State New
Headers
Series mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard |

Commit Message

Nathan Barrett-Morrison Dec. 1, 2022, 6:15 p.m. UTC 
  This adds some support for searching a chips SFDP table for:

read commands: 1S-8S-8S
program commands: 1S-1S-8S, 1S-8S-8S

Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
---
 drivers/mtd/spi-nor/core.c | 21 ++++++++++++++++++++-
 drivers/mtd/spi-nor/core.h |  9 ++++++---
 2 files changed, 26 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index bee8fc4c9f07..7475a9a22881 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2335,7 +2335,7 @@  static void spi_nor_no_sfdp_init_params(struct spi_nor *nor)
 {
 	struct spi_nor_flash_parameter *params = nor->params;
 	struct spi_nor_erase_map *map = &params->erase_map;
-	const u8 no_sfdp_flags = nor->info->no_sfdp_flags;
+	const u16 no_sfdp_flags = nor->info->no_sfdp_flags;
 	u8 i, erase_mask;
 
 	if (no_sfdp_flags & SPI_NOR_DUAL_READ) {
@@ -2359,6 +2359,25 @@  static void spi_nor_no_sfdp_init_params(struct spi_nor *nor)
 					  SNOR_PROTO_1_1_8);
 	}
 
+	if (no_sfdp_flags & SPI_NOR_OCTAL_READ_1_8_8) {
+		params->hwcaps.mask |= SNOR_HWCAPS_READ_1_8_8;
+		spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_1_8_8],
+					  0, 16, SPINOR_OP_READ_1_8_8,
+					  SNOR_PROTO_1_8_8);
+	}
+
+	if (no_sfdp_flags & SPI_NOR_OCTAL_PP) {
+		params->hwcaps.mask |= SNOR_HWCAPS_PP_1_1_8;
+		spi_nor_set_pp_settings(&params->page_programs[SNOR_CMD_PP_1_1_8],
+					SPINOR_OP_PP_1_1_8, SNOR_PROTO_1_1_8);
+	}
+
+	if (no_sfdp_flags & SPI_NOR_OCTAL_PP_1_8_8) {
+		params->hwcaps.mask |= SNOR_HWCAPS_PP_1_8_8;
+		spi_nor_set_pp_settings(&params->page_programs[SNOR_CMD_PP_8_8_8],
+					SPINOR_OP_PP_1_8_8, SNOR_PROTO_1_8_8);
+	}
+
 	if (no_sfdp_flags & SPI_NOR_OCTAL_DTR_READ) {
 		params->hwcaps.mask |= SNOR_HWCAPS_READ_8_8_8_DTR;
 		spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_8_8_8_DTR],
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index 85b0cf254e97..25a0d4f1850b 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -508,14 +508,17 @@  struct flash_info {
 #define NO_CHIP_ERASE			BIT(7)
 #define SPI_NOR_NO_FR			BIT(8)
 
-	u8 no_sfdp_flags;
+	u16 no_sfdp_flags;
 #define SPI_NOR_SKIP_SFDP		BIT(0)
 #define SECT_4K				BIT(1)
 #define SPI_NOR_DUAL_READ		BIT(3)
 #define SPI_NOR_QUAD_READ		BIT(4)
 #define SPI_NOR_OCTAL_READ		BIT(5)
-#define SPI_NOR_OCTAL_DTR_READ		BIT(6)
-#define SPI_NOR_OCTAL_DTR_PP		BIT(7)
+#define SPI_NOR_OCTAL_READ_1_8_8	BIT(6)
+#define SPI_NOR_OCTAL_PP		BIT(7)
+#define SPI_NOR_OCTAL_PP_1_8_8		BIT(8)
+#define SPI_NOR_OCTAL_DTR_READ		BIT(9)
+#define SPI_NOR_OCTAL_DTR_PP		BIT(10)
 
 	u8 fixup_flags;
 #define SPI_NOR_4B_OPCODES		BIT(0)