release/src-rt-6.x/linux/linux-2.6/arch/mips/qemu/q-firmware.c

   1 #include <linux/init.h>
   2 #include <linux/string.h>
   3 #include <asm/addrspace.h>
   4 #include <asm/bootinfo.h>
   5
   6 void __init prom_init(void)
   7 {
   8         int *cmdline;
   9
  10         cmdline = (int *) (CKSEG0 + (0x10 << 20) - 260);
  11         if (*cmdline == 0x12345678) {
  12                 if (*(char *)(cmdline + 1))
  13                         strcpy (arcs_cmdline, (char *)(cmdline + 1));
  14                 add_memory_region(0x0<<20, cmdline[-1], BOOT_MEM_RAM);
  15         } else {
  16                 add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);
  17         }
  18 }