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,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Cc: wesley@sifive.com, palmer@sifive.com,
Sagar Shrikant Kadam <sagar.kadam@sifive.com>,
aou@eecs.berkeley.edu, paul.walmsley@sifive.com
Subject: [PATCH v5 1/3] mtd: spi-nor: add support for is25wp256
Date: Wed, 12 Jun 2019 16:17:54 +0530 [thread overview]
Message-ID: <1560336476-31763-2-git-send-email-sagar.kadam@sifive.com> (raw)
In-Reply-To: <1560336476-31763-1-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>
---
drivers/mtd/spi-nor/spi-nor.c | 10 +++++++++-
include/linux/mtd/spi-nor.h | 1 +
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 73172d7..2d5a925 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1834,6 +1834,10 @@ 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) },
@@ -3652,6 +3656,10 @@ static int spi_nor_init_params(struct spi_nor *nor,
case SNOR_MFR_MACRONIX:
params->quad_enable = macronix_quad_enable;
break;
+ case SNOR_MFR_ISSI:
+ params->quad_enable = macronix_quad_enable;
+ break;
+
case SNOR_MFR_ST:
case SNOR_MFR_MICRON:
@@ -4129,7 +4137,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
if (ret)
return ret;
- if (nor->addr_width) {
+ if (nor->addr_width && JEDEC_MFR(info) != SNOR_MFR_ISSI) {
/* already configured from SFDP */
} else if (info->addr_width) {
nor->addr_width = info->addr_width;
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index b3d360b..ff13297 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -19,6 +19,7 @@
#define SNOR_MFR_ATMEL CFI_MFR_ATMEL
#define SNOR_MFR_GIGADEVICE 0xc8
#define SNOR_MFR_INTEL CFI_MFR_INTEL
+#define SNOR_MFR_ISSI 0x9d /* ISSI */
#define SNOR_MFR_ST CFI_MFR_ST /* ST Micro */
#define SNOR_MFR_MICRON CFI_MFR_MICRON /* Micron */
#define SNOR_MFR_MACRONIX CFI_MFR_MACRONIX
--
1.9.1
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next prev parent reply other threads:[~2019-06-12 10:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 10:47 [PATCH v5 0/3] mtd: spi-nor: add support for is25wp256 spi-nor flash Sagar Shrikant Kadam
2019-06-12 10:47 ` Sagar Shrikant Kadam [this message]
2019-06-16 12:44 ` [PATCH v5 1/3] mtd: spi-nor: add support for is25wp256 Vignesh Raghavendra
2019-06-17 15:18 ` Sagar Kadam
2019-06-21 6:04 ` Vignesh Raghavendra
2019-06-21 10:28 ` Sagar Kadam
2019-06-24 9:34 ` Vignesh Raghavendra
2019-06-24 12:40 ` Sagar Kadam
2019-06-24 13:08 ` Vignesh Raghavendra
2019-06-24 15:22 ` Sagar Kadam
2019-06-12 10:47 ` [PATCH v5 2/3] mtd: spi-nor: add support to unlock flash device Sagar Shrikant Kadam
2019-06-16 13:05 ` Vignesh Raghavendra
2019-06-17 15:40 ` Sagar Kadam
2019-06-18 0:25 ` Joe Perches
2019-06-18 3:55 ` Sagar Kadam
2019-06-12 10:47 ` [PATCH v5 3/3] mtd: spi-nor: add locking support for is25xxxxx device Sagar Shrikant Kadam
2019-06-18 4:24 ` Vignesh Raghavendra
2019-06-18 11:44 ` Sagar Kadam
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