From b045adea9eec6668f23dd6874439d197768c1dfd Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 18 Jul 2014 14:36:38 +0000 Subject: kernel: mtd: allow partial block erase This fixes error erasing partial mtd partition which does not start on eraseblock boundary and allows using fconfig to configure redboot on devices such as the Gateworks Cambria. Signed-off-by: Maciej Skrzypek git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41733 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../linux/generic/patches-3.3/401-partial_eraseblock_write.patch | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'target/linux/generic/patches-3.3') diff --git a/target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch b/target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch index 3b22cfcb25..f9c1c5ea6d 100644 --- a/target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch +++ b/target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch @@ -9,7 +9,7 @@ /* Our partition linked list */ static LIST_HEAD(mtd_partitions); static DEFINE_MUTEX(mtd_partitions_mutex); -@@ -252,13 +254,60 @@ static int part_erase(struct mtd_info *m +@@ -252,13 +254,61 @@ static int part_erase(struct mtd_info *m return -EROFS; if (instr->addr >= mtd->size) return -EINVAL; @@ -33,6 +33,7 @@ + part->master->erasesize, + &readlen, instr->erase_buf); + ++ instr->len += instr->erase_buf_ofs; + instr->partial_start = true; + } else { + mtd_ofs = part->offset + part->mtd.size; @@ -70,7 +71,7 @@ return ret; } -@@ -266,7 +315,25 @@ void mtd_erase_callback(struct erase_inf +@@ -266,7 +316,25 @@ void mtd_erase_callback(struct erase_inf { if (instr->mtd->erase == part_erase) { struct mtd_part *part = PART(instr->mtd); @@ -96,7 +97,7 @@ if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) instr->fail_addr -= part->offset; instr->addr -= part->offset; -@@ -537,18 +604,24 @@ static struct mtd_part *allocate_partiti +@@ -537,18 +605,24 @@ static struct mtd_part *allocate_partiti if ((slave->mtd.flags & MTD_WRITEABLE) && mtd_mod_by_eb(slave->offset, &slave->mtd)) { /* Doesn't start on a boundary of major erase size */ -- cgit v1.2.3