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, palmer@sifive.com,
aou@eecs.berkeley.edu, paul.walmsley@sifive.com,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-riscv@lists.infradead.org
Cc: Sagar Shrikant Kadam <sagar.kadam@sifive.com>
Subject: [PATCH v4 1/3] mtd: spi-nor: add support for is25wp256
Date: Sat, 11 May 2019 15:38:06 +0530 [thread overview]
Message-ID: <1557569288-19441-2-git-send-email-sagar.kadam@sifive.com> (raw)
In-Reply-To: <1557569288-19441-1-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 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
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2019-05-11 10:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-11 10:08 [PATCH v4 0/3] add support for is25wp256 spi-nor device Sagar Shrikant Kadam
2019-05-11 10:08 ` Sagar Shrikant Kadam [this message]
2019-05-11 10:08 ` [PATCH v4 2/3] mtd: spi-nor: add support to unlock flash device Sagar Shrikant Kadam
2019-05-11 10:08 ` [PATCH v4 3/3] mtd: spi-nor: add locking support for is25xxxxx device Sagar Shrikant Kadam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1557569288-19441-2-git-send-email-sagar.kadam@sifive.com \
--to=sagar.kadam@sifive.com \
--cc=aou@eecs.berkeley.edu \
--cc=bbrezillon@kernel.org \
--cc=computersforpeace@gmail.com \
--cc=dwmw2@infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-riscv@lists.infradead.org \
--cc=marek.vasut@gmail.com \
--cc=palmer@sifive.com \
--cc=paul.walmsley@sifive.com \
--cc=richard@nod.at \
--cc=tudor.ambarus@microchip.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).