2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License as published by the
4 * Free Software Foundation; either version 2 of the License, or (at your
5 * option) any later version.
8 #include <linux/fcntl.h>
11 #include <asm/bootinfo.h>
15 void __init prom_init_memory(void)
17 add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
20 add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
21 #endif /* CONFIG_64BIT */
24 /* override of arch/mips/mm/cache.c: __uncached_access */
25 int __uncached_access(struct file *file, unsigned long addr)
27 if (file->f_flags & O_SYNC)
31 * On the Lemote Loongson 2e system, the peripheral registers
32 * reside between 0x1000:0000 and 0x2000:0000.
34 return addr >= __pa(high_memory) ||
35 ((addr >= 0x10000000) && (addr < 0x20000000));