From: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
To: marek.vasut@gmail.com, tudor.ambarus@microchip.com,
dwmw2@infradead.org, computersforpeace@gmail.com,
bbrezillon@kernel.org, richard@nod.at
Cc: 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 v2 1/3] mtd: spi-nor: add support for is25wp256
Date: Sun, 28 Apr 2019 23:39:14 +0530 [thread overview]
Message-ID: <1556474956-27786-2-git-send-email-sagar.kadam@sifive.com> (raw)
In-Reply-To: <1556474956-27786-1-git-send-email-sagar.kadam@sifive.com>
Update spi_nor_id tablet 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.
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 fae1474..c5408ed 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) },
@@ -3650,6 +3654,10 @@ 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:
@@ -4127,7 +4135,7 @@ 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:[~2019-04-28 18:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-28 18:09 [PATCH v2 0/3] add support for is25wp256 spi-nor device Sagar Shrikant Kadam
2019-04-28 18:09 ` Sagar Shrikant Kadam [this message]
2019-04-30 17:03 ` [PATCH v2 1/3] mtd: spi-nor: add support for is25wp256 Paul Walmsley
2019-05-02 9:50 ` Sagar Kadam
2019-04-28 18:09 ` [PATCH v2 2/3] mtd: spi-nor: add support to unlock flash device Sagar Shrikant Kadam
2019-04-30 17:19 ` Paul Walmsley
2019-05-02 9:56 ` Sagar Kadam
2019-04-28 18:09 ` [PATCH v2 3/3] mtd: spi-nor: add locking support for is25xxxxx device Sagar Shrikant Kadam
2019-04-30 17:13 ` Paul Walmsley
2019-04-30 17:19 ` Paul Walmsley
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