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wdenk121fc642005-05-19 22:46:33 +00001/*
2 * (C) Copyright 2005
3 * Greg Ungerer, OpenGear Inc, <greg.ungerer@opengear.com>
4 *
5 * (C) Copyright 2002
6 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
7 *
8 * (C) Copyright 2002
9 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
10 * Marius Groeger <mgroeger@sysgo.de>
11 *
12 * See file CREDITS for list of people who contributed to this
13 * project.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License as
17 * published by the Free Software Foundation; either version 2 of
18 * the License, or (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 * MA 02111-1307 USA
29 */
30
31#include <common.h>
32#include <asm/arch/platform.h>
33
Wolfgang Denkd87080b2006-03-31 18:32:53 +020034DECLARE_GLOBAL_DATA_PTR;
35
wdenk121fc642005-05-19 22:46:33 +000036/* ------------------------------------------------------------------------- */
37
38#define ks8695_read(a) *((volatile unsigned int *) (KS8695_IO_BASE+(a)))
39#define ks8695_write(a,b) *((volatile unsigned int *) (KS8695_IO_BASE+(a))) = (b)
40
41/* ------------------------------------------------------------------------- */
42
43
44/*
45 * Miscelaneous platform dependent initialisations
46 */
47int env_flash_cmdline (void)
48{
Greg Ungerer61a19262011-09-10 18:36:40 +100049 char *sp = (char *) 0x0201c020;
50 char *ep;
wdenk121fc642005-05-19 22:46:33 +000051 int len;
52
53 /* Check if "erase" push button is depressed */
54 if ((ks8695_read(KS8695_GPIO_DATA) & 0x8) == 0) {
55 printf("### Entering network recovery mode...\n");
56 setenv("bootargs", "console=ttyAM0,115200 mem=16M initrd=0x400000,6M root=/dev/ram0");
57 setenv("bootcmd", "bootp 0x400000; gofsk 0x400000");
58 setenv("bootdelay", "2");
59 return 0;
60 }
61
62 /* Check for flash based kernel boot args to use as default */
63 for (ep = sp, len = 0; ((len < 1024) && (*ep != 0)); ep++, len++)
64 ;
65
66 if ((len > 0) && (len <1024))
67 setenv("bootargs", sp);
68
69 return 0;
70}
71
72int board_late_init (void)
73{
74 return 0;
75}
76
77
78int board_init (void)
79{
wdenk121fc642005-05-19 22:46:33 +000080 /* arch number of CM4008 */
81 gd->bd->bi_arch_number = 624;
82
83 /* adress of boot parameters */
84 gd->bd->bi_boot_params = 0x00000100;
85
86 /* power down all but port 0 on the switch */
87 ks8695_write(KS8695_SWITCH_LPPM12, 0x00000005);
88 ks8695_write(KS8695_SWITCH_LPPM34, 0x00050005);
wdenk16b013e2005-05-19 22:46:33 +000089
wdenk121fc642005-05-19 22:46:33 +000090 return 0;
91}
92
93int dram_init (void)
94{
wdenk121fc642005-05-19 22:46:33 +000095 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
96 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
97
98 return (0);
99}