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/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/fs.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <asm/bootinfo.h>
extern unsigned long memsize, highmemsize;
void __init prom_init_memory(void)
{
add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
#ifdef CONFIG_64BIT
if (highmemsize > 0)
add_memory_region(0x20000000, highmemsize << 20, BOOT_MEM_RAM);
#endif /* CONFIG_64BIT */
}
/* override of arch/mips/mm/cache.c: __uncached_access */
int __uncached_access(struct file *file, unsigned long addr)
{
if (file->f_flags & O_SYNC)
return 1;
/*
* On the Lemote Loongson 2e system, the peripheral registers
* reside between 0x1000:0000 and 0x2000:0000.
*/
return addr >= __pa(high_memory) ||
((addr >= 0x10000000) && (addr < 0x20000000));
}
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