2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 #include <asm/immap.h>
30 DECLARE_GLOBAL_DATA_PTR;
35 puts("Freescale M52277 EVB\n");
39 long int initdram(int board_type)
41 volatile sdramc_t *sdram = (volatile sdramc_t *)(MMAP_SDRAM);
44 dramsize = CFG_SDRAM_SIZE * 0x100000;
46 for (i = 0x13; i < 0x20; i++) {
47 if (dramsize == (1 << i))
52 sdram->sdcs0 = (CFG_SDRAM_BASE | i);
54 sdram->sdcfg1 = CFG_SDRAM_CFG1;
55 sdram->sdcfg2 = CFG_SDRAM_CFG2;
58 sdram->sdcr = CFG_SDRAM_CTRL | 2;
61 /*sdram->sdmr = CFG_SDRAM_EMOD; */
62 sdram->sdmr = CFG_SDRAM_MODE;
67 sdram->sdcr = CFG_SDRAM_CTRL | 2;
69 /* Perform two refresh cycles */
70 sdram->sdcr = CFG_SDRAM_CTRL | 4;
71 sdram->sdcr = CFG_SDRAM_CTRL | 4;
73 sdram->sdcr = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00;
82 /* TODO: XXX XXX XXX */
83 printf("DRAM test not implemented!\n");