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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 <maciej.skrzypek@flytronic.pl>

SVN-Revision: 41733
lede-17.01
Felix Fietkau 2014-07-18 14:36:38 +00:00
parent 51fbfde474
commit 1d232f354a
7 changed files with 28 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
target/linux/generic/patches-3.10/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ 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;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ 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 */

7
target/linux/generic/patches-3.13/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ 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;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ 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 */

7
target/linux/generic/patches-3.14/411-mtd-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -231,13 +233,60 @@ static int part_erase(struct mtd_info *m
@@ -231,13 +233,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -245,7 +294,25 @@ void mtd_erase_callback(struct erase_inf
@@ -245,7 +295,25 @@ 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;
@@ -503,18 +570,24 @@ static struct mtd_part *allocate_partiti
@@ -503,18 +571,24 @@ 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 */

7
target/linux/generic/patches-3.3/401-partial_eraseblock_write.patch
View File

@ -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 */

7
target/linux/generic/patches-3.6/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ 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;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ 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 */

7
target/linux/generic/patches-3.8/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ 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;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ 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 */

7
target/linux/generic/patches-3.9/401-partial_eraseblock_write.patch
View File

@ -9,7 +9,7 @@
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
static DEFINE_MUTEX(mtd_partitions_mutex);
@@ -230,13 +232,60 @@ static int part_erase(struct mtd_info *m
@@ -230,13 +232,61 @@ static int part_erase(struct mtd_info *m
struct mtd_part *part = PART(mtd);
int ret;
@ -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;
}
@@ -244,7 +293,25 @@ void mtd_erase_callback(struct erase_inf
@@ -244,7 +294,25 @@ 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;
@@ -504,18 +571,24 @@ static struct mtd_part *allocate_partiti
@@ -504,18 +572,24 @@ 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 */