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Diffstat (limited to 'target/linux/lantiq/patches/206-owrt-brnboot.patch')
-rw-r--r--target/linux/lantiq/patches/206-owrt-brnboot.patch93
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches/206-owrt-brnboot.patch b/target/linux/lantiq/patches/206-owrt-brnboot.patch
new file mode 100644
index 0000000000..c21d76d1f8
--- /dev/null
+++ b/target/linux/lantiq/patches/206-owrt-brnboot.patch
@@ -0,0 +1,93 @@
+Index: linux-3.1.9/drivers/mtd/mtdpart.c
+===================================================================
+--- linux-3.1.9.orig/drivers/mtd/mtdpart.c 2012-01-29 22:55:30.295904157 +0100
++++ linux-3.1.9/drivers/mtd/mtdpart.c 2012-01-29 22:55:30.395904294 +0100
+@@ -899,6 +899,38 @@
+ return le32_to_cpu(temp) == SQUASHFS_MAGIC;
+ }
+
++static unsigned long find_brnimage_size(struct mtd_info *mtd,
++ unsigned long offset)
++{
++ unsigned long buf[4];
++ // Assume at most 2MB of kernel image
++ unsigned long end = offset + (2 << 20);
++ unsigned long ptr = offset + 0x400 - 12;
++ size_t len;
++ int ret;
++
++ while (ptr < end) {
++ long size_min = ptr - 0x400 - 12 - offset;
++ long size_max = ptr + 12 - offset;
++ ret = mtd->read(mtd, ptr, 16, &len, (void *)buf);
++ if (ret || len != 16)
++ return 0;
++
++ if (le32_to_cpu(buf[0]) < size_min ||
++ le32_to_cpu(buf[0]) > size_max) {
++ ptr += 0x400;
++ continue;
++ }
++
++ if (le32_to_cpu(buf[3]) == SQUASHFS_MAGIC)
++ return ptr + 12 - offset;
++
++ ptr += 0x400;
++ }
++
++ return 0;
++}
++
+ static int split_uimage(struct mtd_info *mtd,
+ const struct mtd_partition *part)
+ {
+@@ -916,8 +948,11 @@
+
+ split_partitions[0].size = find_uimage_size(mtd, part->offset);
+ if (!split_partitions[0].size) {
+- printk(KERN_NOTICE "no uImage found in linux partition\n");
+- return -1;
++ split_partitions[0].size = find_brnimage_size(mtd, part->offset);
++ if (!split_partitions[0].size) {
++ printk(KERN_NOTICE "no uImage or brnImage found in linux partition\n");
++ return -1;
++ }
+ }
+
+ if (!detect_squashfs_partition(mtd,
+Index: linux-3.1.9/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+===================================================================
+--- linux-3.1.9.orig/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-01-29 22:55:30.195904014 +0100
++++ linux-3.1.9/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-01-29 22:55:30.395904294 +0100
+@@ -149,6 +149,7 @@
+
+ extern __iomem void *ltq_ebu_membase;
+ extern __iomem void *ltq_cgu_membase;
++extern long ltq_brn_boot;
+
+ /* request a non-gpio and set the PIO config */
+ extern int ltq_gpio_request(unsigned int pin, unsigned int alt0,
+Index: linux-3.1.9/arch/mips/lantiq/setup.c
+===================================================================
+--- linux-3.1.9.orig/arch/mips/lantiq/setup.c 2012-01-29 22:55:30.095903875 +0100
++++ linux-3.1.9/arch/mips/lantiq/setup.c 2012-01-29 22:59:28.686237119 +0100
+@@ -20,6 +20,8 @@
+
+ /* assume 16M as default incase uboot fails to pass proper ramsize */
+ unsigned long physical_memsize = 16L;
++/* set to 1 if the bootloader is BRN-BOOT instead of u-boot */
++unsigned long ltq_brn_boot = 0;
+
+ void __init plat_mem_setup(void)
+ {
+@@ -39,6 +41,10 @@
+ if (strict_strtoul(e, 0, &physical_memsize))
+ pr_warn("bad memsize specified\n");
+ }
++ if (!strncmp(e, "BRN-BOOT", 8)){
++ pr_info("Found BRN-BOOT instead of u-boot\n");
++ ltq_brn_boot = 1;
++ }
+ envp++;
+ }
+ physical_memsize *= 1024 * 1024;