diff options
Diffstat (limited to 'target/linux/ramips/patches-4.14/304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch')
| -rw-r--r-- | target/linux/ramips/patches-4.14/304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.14/304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch b/target/linux/ramips/patches-4.14/304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch new file mode 100644 index 0000000000..c8febaf73f --- /dev/null +++ b/target/linux/ramips/patches-4.14/304-spi-nor-enable-4B-opcodes-for-mx25l25635f.patch @@ -0,0 +1,72 @@ +This hack can be dropped after the next stable release from +v5.x-tree. + +The problem was fixed upstream by + +commit 2bffa65da43e ("mtd: spi-nor: Add a post BFPT fixup for MX25L25635E") + +For reference see: +<https://github.com/openwrt/openwrt/pull/1743> + +--- a/drivers/mtd/spi-nor/spi-nor.c ++++ b/drivers/mtd/spi-nor/spi-nor.c +@@ -1098,6 +1098,7 @@ static const struct flash_info spi_nor_i + { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, + { "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) }, + { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, ++ { "mx25l25635f", INFO(0xc22019, 0, 64 * 1024, 512, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) }, + { "mx25u25635f", INFO(0xc22539, 0, 64 * 1024, 512, SECT_4K | SPI_NOR_4B_OPCODES) }, + { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) }, + { "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) }, +@@ -1267,11 +1268,12 @@ static const struct flash_info spi_nor_i + { }, + }; + +-static const struct flash_info *spi_nor_read_id(struct spi_nor *nor) ++static const struct flash_info *spi_nor_read_id(struct spi_nor *nor, ++ const char *name) + { + int tmp; + u8 id[SPI_NOR_MAX_ID_LEN]; +- const struct flash_info *info; ++ const struct flash_info *info, *first_match = NULL; + + tmp = nor->read_reg(nor, SPINOR_OP_RDID, id, SPI_NOR_MAX_ID_LEN); + if (tmp < 0) { +@@ -1282,10 +1284,16 @@ static const struct flash_info *spi_nor_ + for (tmp = 0; tmp < ARRAY_SIZE(spi_nor_ids) - 1; tmp++) { + info = &spi_nor_ids[tmp]; + if (info->id_len) { +- if (!memcmp(info->id, id, info->id_len)) +- return &spi_nor_ids[tmp]; ++ if (!memcmp(info->id, id, info->id_len)) { ++ if (!name || !strcmp(name, info->name)) ++ return info; ++ if (!first_match) ++ first_match = info; ++ } + } + } ++ if (first_match) ++ return first_match; + dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n", + id[0], id[1], id[2]); + return ERR_PTR(-ENODEV); +@@ -2765,7 +2773,7 @@ int spi_nor_scan(struct spi_nor *nor, co + info = spi_nor_match_id(name); + /* Try to auto-detect if chip name wasn't specified or not found */ + if (!info) +- info = spi_nor_read_id(nor); ++ info = spi_nor_read_id(nor, NULL); + if (IS_ERR_OR_NULL(info)) + return -ENOENT; + +@@ -2776,7 +2784,7 @@ int spi_nor_scan(struct spi_nor *nor, co + if (name && info->id_len) { + const struct flash_info *jinfo; + +- jinfo = spi_nor_read_id(nor); ++ jinfo = spi_nor_read_id(nor, name); + if (IS_ERR(jinfo)) { + return PTR_ERR(jinfo); + } else if (jinfo != info) { |