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Index: linux-3.1.10/drivers/mtd/mtdpart.c
===================================================================
--- linux-3.1.10.orig/drivers/mtd/mtdpart.c 2012-02-14 19:38:40.102266817 +0100
+++ linux-3.1.10/drivers/mtd/mtdpart.c 2012-02-14 19:38:40.146266819 +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-3.1.10/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
===================================================================
--- linux-3.1.10.orig/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-02-14 19:38:40.058266816 +0100
+++ linux-3.1.10/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h 2012-02-14 19:57:07.790314179 +0100
@@ -149,6 +149,7 @@
extern __iomem void *ltq_ebu_membase;
extern __iomem void *ltq_cgu_membase;
+extern unsigned 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-3.1.10/arch/mips/lantiq/setup.c
===================================================================
--- linux-3.1.10.orig/arch/mips/lantiq/setup.c 2012-02-14 19:38:40.010266814 +0100
+++ linux-3.1.10/arch/mips/lantiq/setup.c 2012-02-14 19:38:40.150266820 +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;
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