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Code

[ar7] handle LOADER_MAGIC2 in ar7part

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This is required for Actiontec PK5000 devices. Path from Daniel Gimpelevich.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33753 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian 2012-10-13 17:47:25 +00:00
parent d5c1a967f2
commit d2419b25b6
1 changed files with 70 additions and 8 deletions
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78
target/linux/ar7/patches-3.3/920-ar7part.patch
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@ -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