From: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
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
Cc: aou@eecs.berkeley.edu, palmer@sifive.com,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
Sagar Shrikant Kadam <sagar.kadam@sifive.com>,
paul.walmsley@sifive.com, linux-riscv@lists.infradead.org
Subject: [PATCH v9 1/2] mtd: spi-nor: add support for is25wp256
Date: Wed, 18 Sep 2019 21:31:44 +0530 [thread overview]
Message-ID: <1568822505-19297-2-git-send-email-sagar.kadam@sifive.com> (raw)
In-Reply-To: <1568822505-19297-1-git-send-email-sagar.kadam@sifive.com>
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 <wesley@sifive.com>
and/or Palmer Dabbelt <palmer@sifive.com>
https://github.com/riscv/riscv-linux/commit/c94e267766d62bc9a669611c3d0c8ed5ea26569b
Signed-off-by: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.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 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
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next prev parent reply other threads:[~2019-09-18 16:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-18 16:01 [PATCH v9 0/2] mtd: spi-nor: add support for is25wp256 spi-nor flash Sagar Shrikant Kadam
2019-09-18 16:01 ` Sagar Shrikant Kadam [this message]
2019-09-18 16:01 ` [PATCH v9 2/2] mtd: spi-nor: fix nor->addr_width for is25wp256 Sagar Shrikant Kadam
2019-09-30 13:34 ` [PATCH v9 0/2] mtd: spi-nor: add support for is25wp256 spi-nor flash Sagar Kadam
2019-10-22 17:22 ` [PATCH v10 1/2] mtd: spi-nor: Add support for is25wp256 Tudor.Ambarus
2019-10-22 17:22 ` [PATCH v10 2/2] mtd: spi-nor: Set default Quad Enable method for ISSI flashes Tudor.Ambarus
2019-10-30 19:42 ` Sagar Kadam
2019-11-07 9:05 ` Vignesh Raghavendra
2019-11-11 19:38 ` Tudor.Ambarus
2019-11-07 9:03 ` [PATCH v10 1/2] mtd: spi-nor: Add support for is25wp256 Vignesh Raghavendra
2019-11-11 19:36 ` Tudor.Ambarus
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