#include <linux/init.h> #include <linux/string.h> #include <asm/addrspace.h> #include <asm/bootinfo.h> void __init prom_init(void) { int *cmdline; cmdline = (int *) (CKSEG0 + (0x10 << 20) - 260); if (*cmdline == 0x12345678) { if (*(char *)(cmdline + 1)) strcpy (arcs_cmdline, (char *)(cmdline + 1)); add_memory_region(0x0<<20, cmdline[-1], BOOT_MEM_RAM); } else { add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM); } }