diff options
Diffstat (limited to 'target/linux/generic/patches-4.3')
4 files changed, 132 insertions, 2 deletions
diff --git a/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch b/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch new file mode 100644 index 0000000..aa31514 --- /dev/null +++ b/target/linux/generic/patches-4.3/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch @@ -0,0 +1,33 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Sat, 5 Dec 2015 02:03:32 +0100 +Subject: [PATCH] mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS) + only +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +We allowed using bcm47xxpart on BCM5301X arch with commit: +9e3afa5f5c7 ("mtd: bcm47xxpart: allow enabling on ARCH_BCM_5301X") + +BCM5301X devices may contain some partitions in higher memory, e.g. +Netgear R8000 has board_data at 0x2600000. To detect them we should +use size limit on MIPS only. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +--- + drivers/mtd/bcm47xxpart.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -118,8 +118,8 @@ static int bcm47xxpart_parse(struct mtd_info *master, + /* Parse block by block looking for magics */ + for (offset = 0; offset <= master->size - blocksize; + offset += blocksize) { +- /* Nothing more in higher memory */ +- if (offset >= 0x2000000) ++ /* Nothing more in higher memory on BCM47XX (MIPS) */ ++ if (config_enabled(CONFIG_BCM47XX) && offset >= 0x2000000) + break; + + if (curr_part >= BCM47XXPART_MAX_PARTS) { diff --git a/target/linux/generic/patches-4.3/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch b/target/linux/generic/patches-4.3/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch new file mode 100644 index 0000000..f9e81f9 --- /dev/null +++ b/target/linux/generic/patches-4.3/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch @@ -0,0 +1,97 @@ +From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Sun, 6 Dec 2015 11:24:05 +0100 +Subject: [PATCH] mtd: bcm47xxpart: don't fail because of bit-flips +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Bit-flip errors may occur on NAND flashes and are harmless. Handle them +gracefully as read content is still reliable and can be parsed. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +--- + drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++---------------- + 1 file changed, 22 insertions(+), 16 deletions(-) + +diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c +index 4450e74..1ab3451 100644 +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master, + { + uint32_t buf; + size_t bytes_read; ++ int err; + +- if (mtd_read(master, offset, sizeof(buf), &bytes_read, +- (uint8_t *)&buf) < 0) { +- pr_err("mtd_read error while parsing (offset: 0x%X)!\n", +- offset); ++ err = mtd_read(master, offset, sizeof(buf), &bytes_read, ++ (uint8_t *)&buf); ++ if (err && !mtd_is_bitflip(err)) { ++ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n", ++ offset, err); + goto out_default; + } + +@@ -95,6 +97,7 @@ static int bcm47xxpart_parse(struct mtd_info *master, + int trx_part = -1; + int last_trx_part = -1; + int possible_nvram_sizes[] = { 0x8000, 0xF000, 0x10000, }; ++ int err; + + /* + * Some really old flashes (like AT45DB*) had smaller erasesize-s, but +@@ -128,10 +131,11 @@ static int bcm47xxpart_parse(struct mtd_info *master, + } + + /* Read beginning of the block */ +- if (mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ, +- &bytes_read, (uint8_t *)buf) < 0) { +- pr_err("mtd_read error while parsing (offset: 0x%X)!\n", +- offset); ++ err = mtd_read(master, offset, BCM47XXPART_BYTES_TO_READ, ++ &bytes_read, (uint8_t *)buf); ++ if (err && !mtd_is_bitflip(err)) { ++ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n", ++ offset, err); + continue; + } + +@@ -254,10 +258,11 @@ static int bcm47xxpart_parse(struct mtd_info *master, + } + + /* Read middle of the block */ +- if (mtd_read(master, offset + 0x8000, 0x4, +- &bytes_read, (uint8_t *)buf) < 0) { +- pr_err("mtd_read error while parsing (offset: 0x%X)!\n", +- offset); ++ err = mtd_read(master, offset + 0x8000, 0x4, &bytes_read, ++ (uint8_t *)buf); ++ if (err && !mtd_is_bitflip(err)) { ++ pr_err("mtd_read error while parsing (offset: 0x%X): %d\n", ++ offset, err); + continue; + } + +@@ -277,10 +282,11 @@ static int bcm47xxpart_parse(struct mtd_info *master, + } + + offset = master->size - possible_nvram_sizes[i]; +- if (mtd_read(master, offset, 0x4, &bytes_read, +- (uint8_t *)buf) < 0) { +- pr_err("mtd_read error while reading at offset 0x%X!\n", +- offset); ++ err = mtd_read(master, offset, 0x4, &bytes_read, ++ (uint8_t *)buf); ++ if (err && !mtd_is_bitflip(err)) { ++ pr_err("mtd_read error while reading (offset 0x%X): %d\n", ++ offset, err); + continue; + } + +-- +1.8.4.5 + diff --git a/target/linux/generic/patches-4.3/431-mtd-bcm47xxpart-support-for-Xiaomi-specific-board_da.patch b/target/linux/generic/patches-4.3/431-mtd-bcm47xxpart-support-for-Xiaomi-specific-board_da.patch index a30e698..bc3e502 100644 --- a/target/linux/generic/patches-4.3/431-mtd-bcm47xxpart-support-for-Xiaomi-specific-board_da.patch +++ b/target/linux/generic/patches-4.3/431-mtd-bcm47xxpart-support-for-Xiaomi-specific-board_da.patch @@ -22,7 +22,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com> #define CFE_MAGIC 0x43464531 /* 1EFC */ #define FACTORY_MAGIC 0x59544346 /* FCTY */ #define NVRAM_HEADER 0x48534C46 /* FLSH */ -@@ -262,7 +263,8 @@ static int bcm47xxpart_parse(struct mtd_ +@@ -267,7 +268,8 @@ static int bcm47xxpart_parse(struct mtd_ } /* Some devices (ex. WNDR3700v3) don't have a standard 'MPFR' */ diff --git a/target/linux/generic/patches-4.3/432-mtd-bcm47xxpart-detect-T_Meter-partition.patch b/target/linux/generic/patches-4.3/432-mtd-bcm47xxpart-detect-T_Meter-partition.patch index 1edc995..2b04286 100644 --- a/target/linux/generic/patches-4.3/432-mtd-bcm47xxpart-detect-T_Meter-partition.patch +++ b/target/linux/generic/patches-4.3/432-mtd-bcm47xxpart-detect-T_Meter-partition.patch @@ -24,7 +24,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com> #define ML_MAGIC1 0x39685a42 #define ML_MAGIC2 0x26594131 #define TRX_MAGIC 0x30524448 -@@ -176,6 +177,15 @@ static int bcm47xxpart_parse(struct mtd_ +@@ -180,6 +181,15 @@ static int bcm47xxpart_parse(struct mtd_ MTD_WRITEABLE); continue; } |