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/memblock.h>
  13#include <linux/mm.h>
  14
  15#include <asm/ip32/crime.h>
  16#include <asm/bootinfo.h>
  17#include <asm/page.h>
  18
  19extern void crime_init(void);
  20
  21void __init prom_meminit(void)
  22{
  23        u64 base, size;
  24        int bank;
  25
  26        crime_init();
  27
  28        for (bank=0; bank < CRIME_MAXBANKS; bank++) {
  29                u64 bankctl = crime->bank_ctrl[bank];
  30                base = (bankctl & CRIME_MEM_BANK_CONTROL_ADDR) << 25;
  31                if (bank != 0 && base == 0)
  32                        continue;
  33                size = (bankctl & CRIME_MEM_BANK_CONTROL_SDRAM_SIZE) ? 128 : 32;
  34                size <<= 20;
  35                if (base + size > (256 << 20))
  36                        base += CRIME_HI_MEM_BASE;
  37
  38                printk("CRIME MC: bank %u base 0x%016Lx size %LuMiB\n",
  39                        bank, base, size >> 20);
  40                memblock_add(base, size);
  41        }
  42}
  43