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authorHauke Mehrtens <hauke@hauke-m.de>2014-08-18 21:57:54 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2014-08-18 21:57:54 +0000
commit4a9acacf5341933d0f43476b4aa02de81daff457 (patch)
treee319440c9c56147793f4148f7886617322c7840c /target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch
parent770ba9d40fc6a0198e0253c6e6eab283b9a22ebd (diff)
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kernel: 3.14: update bcm47xxpart
It it used by brcm47xx and bcm53xx targets, so put patches in generic. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 42212
Diffstat (limited to 'target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch')
-rw-r--r--target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch66
1 files changed, 66 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch b/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch
new file mode 100644
index 0000000000..8c6380318f
--- /dev/null
+++ b/target/linux/generic/patches-3.14/431-mtd-bcm47xxpart-support-TRX-data-partition-being-UBI.patch
@@ -0,0 +1,66 @@
+--- a/drivers/mtd/bcm47xxpart.c
++++ b/drivers/mtd/bcm47xxpart.c
+@@ -36,6 +36,7 @@
+ #define ML_MAGIC2 0x26594131
+ #define TRX_MAGIC 0x30524448
+ #define SQSH_MAGIC 0x71736873 /* shsq */
++#define UBI_EC_MAGIC 0x23494255 /* UBI# */
+
+ struct trx_header {
+ uint32_t magic;
+@@ -46,7 +47,7 @@ struct trx_header {
+ uint32_t offset[3];
+ } __packed;
+
+-static void bcm47xxpart_add_part(struct mtd_partition *part, char *name,
++static void bcm47xxpart_add_part(struct mtd_partition *part, const char *name,
+ u64 offset, uint32_t mask_flags)
+ {
+ part->name = name;
+@@ -54,6 +55,26 @@ static void bcm47xxpart_add_part(struct
+ part->mask_flags = mask_flags;
+ }
+
++static const char *bcm47xxpart_trx_data_part_name(struct mtd_info *master,
++ size_t offset)
++{
++ uint32_t buf;
++ size_t bytes_read;
++
++ 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);
++ goto out_default;
++ }
++
++ if (buf == UBI_EC_MAGIC)
++ return "ubi";
++
++out_default:
++ return "rootfs";
++}
++
+ static int bcm47xxpart_parse(struct mtd_info *master,
+ struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+@@ -147,6 +168,8 @@ static int bcm47xxpart_parse(struct mtd_
+
+ /* TRX */
+ if (buf[0x000 / 4] == TRX_MAGIC) {
++ const char *name;
++
+ if (BCM47XXPART_MAX_PARTS - curr_part < 4) {
+ pr_warn("Not enough partitions left to register trx, scanning stopped!\n");
+ break;
+@@ -177,7 +200,9 @@ static int bcm47xxpart_parse(struct mtd_
+ * trx->length - trx->offset[i]. We don't fill it as
+ * we want to have jffs2 (overlay) in the same mtd.
+ */
+- bcm47xxpart_add_part(&parts[curr_part++], "rootfs",
++ name = bcm47xxpart_trx_data_part_name(master,
++ offset + trx->offset[i]);
++ bcm47xxpart_add_part(&parts[curr_part++], name,
+ offset + trx->offset[i], 0);
+ i++;
+