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[amazon] Read the size of the available memory from parameters passed to the kernel...
[openwrt/svn-archive/archive.git]
/
target
/
linux
/
amazon
/
files
/
arch
/
mips
/
amazon
/
prom.c
diff --git
a/target/linux/amazon/files/arch/mips/amazon/prom.c
b/target/linux/amazon/files/arch/mips/amazon/prom.c
index f138bcbef4d6925fbc5f5de3fe4d365f40edb3ba..c5db4f5cdcdc916e05e259983f2922cb7672f9f6 100644
(file)
--- a/
target/linux/amazon/files/arch/mips/amazon/prom.c
+++ b/
target/linux/amazon/files/arch/mips/amazon/prom.c
@@
-59,12
+59,28
@@
void prom_printf(const char * fmt, ...)
void __init prom_init(void)
{
void __init prom_init(void)
{
+ char **envp = (char **) fw_arg2;
+
+ int memsize = 16; /* assume 16M as default */
+
mips_machgroup = MACH_GROUP_INFINEON;
mips_machtype = MACH_INFINEON_AMAZON;
mips_machgroup = MACH_GROUP_INFINEON;
mips_machtype = MACH_INFINEON_AMAZON;
+ envp = (char **)KSEG1ADDR((unsigned long)envp);
+ while (*envp) {
+ char *e = (char *)KSEG1ADDR(*envp);
+
+ if (!strncmp(e, "memsize=", 8)) {
+ e += 8;
+ memsize = simple_strtoul(e, NULL, 10);
+ }
+ envp++;
+ }
+ memsize *= 1024 * 1024;
+
strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2");
strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2");
- add_memory_region(0x00000000,
0x1000000
, BOOT_MEM_RAM);
+ add_memory_region(0x00000000,
memsize
, BOOT_MEM_RAM);
}
void prom_free_prom_memory(void)
}
void prom_free_prom_memory(void)