board/amcc/kilauea/memory.c

   1 /*
   2  * (C) Copyright 2007
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <asm/processor.h>
  26 #include <i2c.h>
  27
  28 void sdram_init(void)
  29 {
  30         return;
  31 }
  32
  33 long int initdram(int board_type)
  34 {
  35         return (CFG_MBYTES_SDRAM << 20);
  36 }
  37
  38 #if defined(CFG_DRAM_TEST)
  39 int testdram (void)
  40 {
  41     printf ("testdram\n");
  42 #if defined (CONFIG_NAND_U_BOOT)
  43     return 0;
  44 #endif
  45         uint *pstart = (uint *) 0x00000000;
  46         uint *pend = (uint *) 0x00001000;
  47         uint *p;
  48
  49         for (p = pstart; p < pend; p++) {
  50                 *p = 0xaaaaaaaa;
  51         }
  52
  53         for (p = pstart; p < pend; p++) {
  54                 if (*p != 0xaaaaaaaa) {
  55 #if !defined (CONFIG_NAND_SPL)
  56                         printf ("SDRAM test fails at: %08x\n", (uint) p);
  57 #endif
  58                         return 1;
  59                 }
  60         }
  61
  62         for (p = pstart; p < pend; p++) {
  63                 *p = 0x55555555;
  64         }
  65
  66         for (p = pstart; p < pend; p++) {
  67                 if (*p != 0x55555555) {
  68 #if !defined (CONFIG_NAND_SPL)
  69                         printf ("SDRAM test fails at: %08x\n", (uint) p);
  70 #endif
  71                         return 1;
  72                 }
  73         }
  74 #if !defined (CONFIG_NAND_SPL)
  75         printf ("SDRAM test passed!!!\n");
  76 #endif
  77         return 0;
  78 }
  79 #endif