From: Rafał Miłecki Date: Fri, 26 Feb 2016 11:12:50 +0000 (+0000) Subject: kernel: use upstream accepted bcm47xxpart patches X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=578e8d6c588d7bf3875e395548d6f78a1e71208a;p=librecmc%2Flibrecmc.git kernel: use upstream accepted bcm47xxpart patches Signed-off-by: Rafał Miłecki SVN-Revision: 48805 --- diff --git a/target/linux/generic/patches-4.4/040-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch b/target/linux/generic/patches-4.4/040-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch new file mode 100644 index 0000000000..2429b113d0 --- /dev/null +++ b/target/linux/generic/patches-4.4/040-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch @@ -0,0 +1,35 @@ +From 2a36a5c30eab9cd1c9d2d08bd27cd763325d70c5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Sat, 5 Dec 2015 02:09:43 +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 +Signed-off-by: Brian Norris +--- + 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_ + /* 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-4.4/041-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch b/target/linux/generic/patches-4.4/041-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch new file mode 100644 index 0000000000..8a04852bc4 --- /dev/null +++ b/target/linux/generic/patches-4.4/041-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch @@ -0,0 +1,93 @@ +From 36bcc0c9c2bc8f56569cd735ba531a51358d7c2b Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Sun, 6 Dec 2015 11:31:38 +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 +Signed-off-by: Brian Norris +--- + drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++---------------- + 1 file changed, 22 insertions(+), 16 deletions(-) + +--- a/drivers/mtd/bcm47xxpart.c ++++ b/drivers/mtd/bcm47xxpart.c +@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_ + { + 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_ + 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_ + } + + /* 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_ + } + + /* 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_ + } + + 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; + } + diff --git a/target/linux/generic/patches-4.4/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch b/target/linux/generic/patches-4.4/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch deleted file mode 100644 index 761cff316d..0000000000 --- a/target/linux/generic/patches-4.4/143-mtd-bcm47xxpart-limit-scanned-flash-area-on-BCM47XX-.patch +++ /dev/null @@ -1,33 +0,0 @@ -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= -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 ---- - 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_ - /* 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-4.4/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch b/target/linux/generic/patches-4.4/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch deleted file mode 100644 index 9073f795e2..0000000000 --- a/target/linux/generic/patches-4.4/144-mtd-bcm47xxpart-don-t-fail-because-of-bit-flips.patch +++ /dev/null @@ -1,92 +0,0 @@ -From dfe4b4c732365fc1d83c2d2fd9cc18054ae850b7 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= -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 ---- - drivers/mtd/bcm47xxpart.c | 38 ++++++++++++++++++++++---------------- - 1 file changed, 22 insertions(+), 16 deletions(-) - ---- a/drivers/mtd/bcm47xxpart.c -+++ b/drivers/mtd/bcm47xxpart.c -@@ -66,11 +66,13 @@ static const char *bcm47xxpart_trx_data_ - { - 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_ - 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_ - } - - /* 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_ - } - - /* 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_ - } - - 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; - } -