1 /*
2  * (C) Copyright 2000-2003
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
6  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
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 <config.h>
28 #include <common.h>
29 #include <asm/immap.h>
30 
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 int checkboard(void)
34 {
35 	puts("Board: ");
36 	puts("Freescale FireEngine 5373 EVB\n");
37 	return 0;
38 };
39 
40 phys_size_t initdram(int board_type)
41 {
42 	volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
43 	u32 dramsize, i;
44 
45 	dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
46 
47 	for (i = 0x13; i < 0x20; i++) {
48 		if (dramsize == (1 << i))
49 			break;
50 	}
51 	i--;
52 
53 	sdram->cs0 = (CONFIG_SYS_SDRAM_BASE | i);
54 	sdram->cfg1 = CONFIG_SYS_SDRAM_CFG1;
55 	sdram->cfg2 = CONFIG_SYS_SDRAM_CFG2;
56 
57 	/* Issue PALL */
58 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 2;
59 
60 	/* Issue LEMR */
61 	sdram->mode = CONFIG_SYS_SDRAM_EMOD;
62 	sdram->mode = (CONFIG_SYS_SDRAM_MODE | 0x04000000);
63 
64 	udelay(500);
65 
66 	/* Issue PALL */
67 	sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL | 2);
68 
69 	/* Perform two refresh cycles */
70 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
71 	sdram->ctrl = CONFIG_SYS_SDRAM_CTRL | 4;
72 
73 	sdram->mode = CONFIG_SYS_SDRAM_MODE;
74 
75 	sdram->ctrl = (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000c00;
76 
77 	udelay(100);
78 
79 	return dramsize;
80 };
81 
82 int testdram(void)
83 {
84 	/* TODO: XXX XXX XXX */
85 	printf("DRAM test not implemented!\n");
86 
87 	return (0);
88 }
89