LXR linux/arch/mips/sgi-ip32/ip32-memory.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2003 Keith M Wesolowski
   7 * Copyright (C) 2005 Ilya A. Volynets (Total Knowledge)
   8 */
   9#include <linux/types.h>
  10#include <linux/init.h>
  11#include <linux/kernel.h>
  12#include <linux/mm.h>
  13
  14#include <asm/ip32/crime.h>
  15#include <asm/bootinfo.h>
  16#include <asm/page.h>
  17#include <asm/pgtable.h>
  18#include <asm/pgalloc.h>
  19
  20extern void crime_init(void);
  21
  22void __init prom_meminit(void)
  23{
  24        u64 base, size;
  25        int bank;
  26
  27        crime_init();
  28
  29        for (bank=0; bank < CRIME_MAXBANKS; bank++) {
  30                u64 bankctl = crime->bank_ctrl[bank];
  31                base = (bankctl & CRIME_MEM_BANK_CONTROL_ADDR) << 25;
  32                if (bank != 0 && base == 0)
  33                        continue;
  34                size = (bankctl & CRIME_MEM_BANK_CONTROL_SDRAM_SIZE) ? 128 : 32;
  35                size <<= 20;
  36                if (base + size > (256 << 20))
  37                        base += CRIME_HI_MEM_BASE;
  38
  39                printk("CRIME MC: bank %u base 0x%016Lx size %LuMiB\n",
  40                        bank, base, size >> 20);
  41                add_memory_region(base, size, BOOT_MEM_RAM);
  42        }
  43}
  44
  45
  46void __init prom_free_prom_memory(void)
  47{
  48}
  49