]> git.ipfire.org Git - people/ms/u-boot.git/blob - board/freescale/m548xevb/m548xevb.c
Merge branch 'master' of git://www.denx.de/git/u-boot-coldfire
[people/ms/u-boot.git] / board / freescale / m548xevb / m548xevb.c
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 <pci.h>
30 #include <asm/immap.h>
31
32 DECLARE_GLOBAL_DATA_PTR;
33
34 int checkboard(void)
35 {
36 puts("Board: ");
37 puts("Freescale FireEngine 5485 EVB\n");
38 return 0;
39 };
40
41 long int initdram(int board_type)
42 {
43 volatile siu_t *siu = (siu_t *) (MMAP_SIU);
44 volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
45 u32 dramsize, i;
46
47 siu->drv = CFG_SDRAM_DRVSTRENGTH;
48
49 dramsize = CFG_DRAMSZ * 0x100000;
50 for (i = 0x13; i < 0x20; i++) {
51 if (dramsize == (1 << i))
52 break;
53 }
54 i--;
55 siu->cs0cfg = (CFG_SDRAM_BASE | i);
56
57 #ifdef CFG_DRAMSZ1
58 temp = CFG_DRAMSZ1 * 0x100000;
59 for (i = 0x13; i < 0x20; i++) {
60 if (temp == (1 << i))
61 break;
62 }
63 i--;
64 dramsize += temp;
65 siu->cs1cfg = ((CFG_SDRAM_BASE + temp) | i);
66 #endif
67
68 sdram->cfg1 = CFG_SDRAM_CFG1;
69 sdram->cfg2 = CFG_SDRAM_CFG2;
70
71 /* Issue PALL */
72 sdram->ctrl = CFG_SDRAM_CTRL | 2;
73
74 /* Issue LEMR */
75 sdram->mode = CFG_SDRAM_EMOD;
76 sdram->mode = (CFG_SDRAM_MODE | 0x04000000);
77
78 udelay(500);
79
80 /* Issue PALL */
81 sdram->ctrl = (CFG_SDRAM_CTRL | 2);
82
83 /* Perform two refresh cycles */
84 sdram->ctrl = CFG_SDRAM_CTRL | 4;
85 sdram->ctrl = CFG_SDRAM_CTRL | 4;
86
87 sdram->mode = CFG_SDRAM_MODE;
88
89 sdram->ctrl = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000F00;
90
91 udelay(100);
92
93 return dramsize;
94 };
95
96 int testdram(void)
97 {
98 /* TODO: XXX XXX XXX */
99 printf("DRAM test not implemented!\n");
100
101 return (0);
102 }
103
104 #if defined(CONFIG_PCI)
105 /*
106 * Initialize PCI devices, report devices found.
107 */
108 static struct pci_controller hose;
109 extern void pci_mcf547x_8x_init(struct pci_controller *hose);
110
111 void pci_init_board(void)
112 {
113 pci_mcf547x_8x_init(&hose);
114 }
115 #endif /* CONFIG_PCI */