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Wed, 18 Sep 2019 09:02:33 -0700 (PDT) From: Sagar Shrikant Kadam To: marek.vasut@gmail.com, tudor.ambarus@microchip.com, dwmw2@infradead.org, computersforpeace@gmail.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com Subject: [PATCH v9 1/2] mtd: spi-nor: add support for is25wp256 Date: Wed, 18 Sep 2019 21:31:44 +0530 Message-Id: <1568822505-19297-2-git-send-email-sagar.kadam@sifive.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1568822505-19297-1-git-send-email-sagar.kadam@sifive.com> References: <1568822505-19297-1-git-send-email-sagar.kadam@sifive.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190918_090234_590576_0545704C X-CRM114-Status: GOOD ( 11.85 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aou@eecs.berkeley.edu, palmer@sifive.com, linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org, Sagar Shrikant Kadam , paul.walmsley@sifive.com, linux-riscv@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org 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 and/or Palmer Dabbelt https://github.com/riscv/riscv-linux/commit/c94e267766d62bc9a669611c3d0c8ed5ea26569b Signed-off-by: Sagar Shrikant Kadam Reviewed-by: Vignesh Raghavendra --- 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 654bdc4..003c1c7 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1946,7 +1946,10 @@ static int spi_nor_spansion_clear_sr_bp(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, 512, + 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) }, @@ -3776,6 +3779,10 @@ 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 9f57cdf..5d6583e 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 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/