board/amcc/kilauea/memory.c

   1 /*
   2  * Copyright (c) 2008 Nuovation System Designs, LLC
   3  *   Grant Erickson <gerickson@nuovations.com>
   4  *
   5  * (C) Copyright 2007
   6  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 #include <common.h>
  28 #include <asm/processor.h>
  29 #include <i2c.h>
  30
  31 void sdram_init(void)
  32 {
  33         return;
  34 }
  35
  36 #if defined(CONFIG_NAND_U_BOOT)
  37 long int initdram(int board_type)
  38 {
  39         return (CFG_MBYTES_SDRAM << 20);
  40 }
  41 #endif /* defined(CONFIG_NAND_U_BOOT) */
  42
  43 #if defined(CFG_DRAM_TEST)
  44 int testdram (void)
  45 {
  46     printf ("testdram\n");
  47 #if defined (CONFIG_NAND_U_BOOT)
  48     return 0;
  49 #endif
  50         uint *pstart = (uint *) 0x00000000;
  51         uint *pend = (uint *) 0x00001000;
  52         uint *p;
  53
  54         for (p = pstart; p < pend; p++) {
  55                 *p = 0xaaaaaaaa;
  56         }
  57
  58         for (p = pstart; p < pend; p++) {
  59                 if (*p != 0xaaaaaaaa) {
  60 #if !defined (CONFIG_NAND_SPL)
  61                         printf ("SDRAM test fails at: %08x\n", (uint) p);
  62 #endif
  63                         return 1;
  64                 }
  65         }
  66
  67         for (p = pstart; p < pend; p++) {
  68                 *p = 0x55555555;
  69         }
  70
  71         for (p = pstart; p < pend; p++) {
  72                 if (*p != 0x55555555) {
  73 #if !defined (CONFIG_NAND_SPL)
  74                         printf ("SDRAM test fails at: %08x\n", (uint) p);
  75 #endif
  76                         return 1;
  77                 }
  78         }
  79 #if !defined (CONFIG_NAND_SPL)
  80         printf ("SDRAM test passed!!!\n");
  81 #endif
  82         return 0;
  83 }
  84 #endif