diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/482-mtd-spi-nor-fix-4-byte-opcode-support-for-w25q256.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/482-mtd-spi-nor-fix-4-byte-opcode-support-for-w25q256.patch | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/target/linux/generic/pending-5.4/482-mtd-spi-nor-fix-4-byte-opcode-support-for-w25q256.patch b/target/linux/generic/pending-5.4/482-mtd-spi-nor-fix-4-byte-opcode-support-for-w25q256.patch deleted file mode 100644 index 63366e6032..0000000000 --- a/target/linux/generic/pending-5.4/482-mtd-spi-nor-fix-4-byte-opcode-support-for-w25q256.patch +++ /dev/null @@ -1,60 +0,0 @@ -From: Mantas Pucka <mantas@8devices.com> -To: linux-mtd@lists.infradead.org -Subject: [PATCH] mtd: spi-nor: fix 4-byte opcode support for w25q256 -Date: Wed, 15 Apr 2020 16:48:30 +0300 -Message-ID: <1586958510-24012-1-git-send-email-mantas@8devices.com> - -There are 2 different chips (w25q256fv and w25q256jv) that share -the same JEDEC ID. Only w25q256jv fully supports 4-byte opcodes. -Use SFDP header version to differentiate between them. - -for OpenWRT only: rebased to linux-v5.4 - -Signed-off-by: Mantas Pucka <mantas@8devices.com> ---- - ---- a/drivers/mtd/spi-nor/spi-nor.c -+++ b/drivers/mtd/spi-nor/spi-nor.c -@@ -2172,6 +2172,32 @@ static struct spi_nor_fixups gd25q256_fi - .default_init = gd25q256_default_init, - }; - -+static int -+w25q256_post_bfpt_fixups(struct spi_nor *nor, -+ const struct sfdp_parameter_header *bfpt_header, -+ const struct sfdp_bfpt *bfpt, -+ struct spi_nor_flash_parameter *params) -+{ -+ /* -+ * W25Q256JV supports 4B opcodes but W25Q256FV does not. -+ * Unfortunately, Winbond has re-used the same JEDEC ID for both -+ * variants which prevents us from defining a new entry in the parts -+ * table. -+ * To differentiate between W25Q256JV and W25Q256FV check SFDP header -+ * version: only JV has JESD216A compliant structure (version 5) -+ */ -+ -+ if (bfpt_header->major == SFDP_JESD216_MAJOR && -+ bfpt_header->minor == SFDP_JESD216A_MINOR) -+ nor->flags |= SNOR_F_4B_OPCODES; -+ -+ return 0; -+} -+ -+static struct spi_nor_fixups w25q256_fixups = { -+ .post_bfpt = w25q256_post_bfpt_fixups, -+}; -+ - /* NOTE: double check command sets and memory organization when you add - * more nor chips. This current list focusses on newer chips, which - * have been converging on command sets which including JEDEC ID. -@@ -2515,7 +2541,8 @@ static const struct flash_info spi_nor_i - { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) }, - { "w25q80bl", INFO(0xef4014, 0, 64 * 1024, 16, SECT_4K) }, - { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) }, -- { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, -+ { "w25q256", INFO(0xef4019, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) -+ .fixups = &w25q256_fixups }, - { "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512, - SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, - { "w25m512jv", INFO(0xef7119, 0, 64 * 1024, 1024, |