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authorFlorian Fainelli <florian@openwrt.org>2012-10-13 17:47:25 +0000
committerFlorian Fainelli <florian@openwrt.org>2012-10-13 17:47:25 +0000
commitec4e61e55886efe794e13420114e667885aa369e (patch)
tree3f27e72270668ab380cbe163d6fe60fc250f8dfe /target/linux/ar7/patches-3.3
parente5a65db1b53954596a7316a1637a3acd2a0c5554 (diff)
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handle LOADER_MAGIC2 in ar7part
This is required for Actiontec PK5000 devices. Path from Daniel Gimpelevich. SVN-Revision: 33753
Diffstat (limited to 'target/linux/ar7/patches-3.3')
-rw-r--r--target/linux/ar7/patches-3.3/920-ar7part.patch78
1 files changed, 70 insertions, 8 deletions
diff --git a/target/linux/ar7/patches-3.3/920-ar7part.patch b/target/linux/ar7/patches-3.3/920-ar7part.patch
index 9cbc53786d..cbd7f2639c 100644
--- a/target/linux/ar7/patches-3.3/920-ar7part.patch
+++ b/target/linux/ar7/patches-3.3/920-ar7part.patch
@@ -15,7 +15,7 @@
#ifndef SQUASHFS_MAGIC
#define SQUASHFS_MAGIC 0x73717368
-@@ -45,6 +48,10 @@ struct ar7_bin_rec {
+@@ -45,12 +48,16 @@ struct ar7_bin_rec {
unsigned int address;
};
@@ -26,23 +26,85 @@
static int create_mtd_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
+ {
+ struct ar7_bin_rec header;
+- unsigned int offset;
++ unsigned int offset, mtd_start, mtd_end;
+ size_t len;
+ unsigned int pre_size = master->erasesize, post_size = 0;
+ unsigned int root_offset = ROOT_OFFSET;
@@ -58,6 +65,16 @@ static int create_mtd_partitions(struct
int retries = 10;
struct mtd_partition *ar7_parts;
-+ const char *prod_id ;
-+ prod_id = prom_getenv("ProductID");
-+ if(prod_id &&
-+ (strcmp(prod_id, "CYWL")==0 ||
-+ strcmp(prod_id, "CYWM")==0 ||
-+ strcmp(prod_id, "CYLM")==0 ||
-+ strcmp(prod_id, "CYLL")==0)){
++ const char *prom_str = prom_getenv("ProductID");
++ char mtd_name[] = "mtd1";
++ if(prom_str &&
++ (strcmp(prom_str, "CYWL")==0 ||
++ strcmp(prom_str, "CYWM")==0 ||
++ strcmp(prom_str, "CYLM")==0 ||
++ strcmp(prom_str, "CYLL")==0)){
+ return create_titan_partitions(master, pparts, data);
+ }
+
ar7_parts = kzalloc(sizeof(*ar7_parts) * AR7_PARTS, GFP_KERNEL);
if (!ar7_parts)
return -ENOMEM;
+@@ -86,34 +103,39 @@ static int create_mtd_partitions(struct
+
+ pre_size = offset;
+
+- if (!ar7_parts[1].offset) {
+- ar7_parts[1].offset = master->size - master->erasesize;
+- post_size = master->erasesize;
+- }
+-
+ switch (header.checksum) {
+- case LOADER_MAGIC1:
+- while (header.length) {
+- offset += sizeof(header) + header.length;
+- mtd_read(master, offset, sizeof(header), &len,
+- (uint8_t *)&header);
+- }
+- root_offset = offset + sizeof(header) + 4;
+- break;
+ case LOADER_MAGIC2:
++ for (retries = 0; retries <= 9; retries++) {
++ mtd_name[3] = '0' + retries;
++ prom_str = prom_getenv(mtd_name);
++ if (prom_str == NULL)
++ continue;
++ sscanf(prom_str, "%i,%i", &mtd_start, &mtd_end);
++ if (pre_size == (mtd_start & 0x1ffffff)) {
++ ar7_parts[1].offset = mtd_end &= 0x1ffffff;
++ ar7_parts[1].size = post_size = master->size - mtd_end;
++ break;
++ }
++ }
++ case LOADER_MAGIC1:
++ root_offset = (header.checksum == LOADER_MAGIC1) ? 4 : 0;
+ while (header.length) {
+ offset += sizeof(header) + header.length;
+ mtd_read(master, offset, sizeof(header), &len,
+ (uint8_t *)&header);
+ }
+- root_offset = offset + sizeof(header) + 4 + 0xff;
+- root_offset &= ~(uint32_t)0xff;
++ root_offset += offset + sizeof(header);
+ break;
+ default:
+ printk(KERN_WARNING "Unknown magic: %08x\n", header.checksum);
+ break;
+ }
+
++ if (!ar7_parts[1].offset) {
++ post_size = master->erasesize;
++ ar7_parts[1].offset = master->size - post_size;
++ }
++
+ mtd_read(master, root_offset, sizeof(header), &len, (u8 *)&header);
+ if (header.checksum != SQUASHFS_MAGIC) {
+ root_offset += master->erasesize - 1;
--- a/drivers/mtd/titanpart.c
+++ b/drivers/mtd/titanpart.c
@@ -149,7 +149,7 @@ static void titan_add_partition(char * e