Update spi_nor_id table for is25wp256 (32MB) device from ISSI, present on HiFive Unleashed dev board (Rev: A00).
Set method to enable quad mode for ISSI device in flash parameters table. Based on code originally written by Wesley Terpstra <wes...@sifive.com> and/or Palmer Dabbelt <pal...@sifive.com> https://github.com/riscv/riscv-linux/commit/c94e267766d62bc9a669611c3d0c8ed5ea26569b Signed-off-by: Sagar Shrikant Kadam <sagar.ka...@sifive.com> --- drivers/mtd/spi-nor/spi-nor.c | 9 ++++++++- include/linux/mtd/spi-nor.h | 1 + 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index e3a28c0..971f0f3 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1857,7 +1857,10 @@ static int sr2_bit7_quad_enable(struct spi_nor *nor) SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, { "is25wp128", INFO(0x9d7018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, - + { "is25wp256", INFO(0x9d7019, 0, 64 * 1024, 1024, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + SPI_NOR_4B_OPCODES) + }, /* Macronix */ { "mx25l512e", INFO(0xc22010, 0, 64 * 1024, 1, SECT_4K) }, { "mx25l2005a", INFO(0xc22012, 0, 64 * 1024, 4, SECT_4K) }, @@ -3687,6 +3690,10 @@ static int spi_nor_init_params(struct spi_nor *nor, case SNOR_MFR_ST: case SNOR_MFR_MICRON: break; + case SNOR_MFR_ISSI: + params->quad_enable = macronix_quad_enable; + break; + default: /* Kept only for backward compatibility purpose. */ diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index b3d360b..b0e42b3 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -21,6 +21,7 @@ #define SNOR_MFR_INTEL CFI_MFR_INTEL #define SNOR_MFR_ST CFI_MFR_ST /* ST Micro */ #define SNOR_MFR_MICRON CFI_MFR_MICRON /* Micron */ +#define SNOR_MFR_ISSI 0x9d /* ISSI */ #define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX #define SNOR_MFR_SPANSION CFI_MFR_AMD #define SNOR_MFR_SST CFI_MFR_SST -- 1.9.1
