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
  19 extern void crime_init(void);
  20
  21 void __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
  44
  45 void __init prom_free_prom_memory(void)
  46 {
  47 }