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wdenk16b013e2005-05-19 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
34/* ------------------------------------------------------------------------- */
35
36#define ks8695_read(a) *((volatile unsigned int *) (KS8695_IO_BASE+(a)))
37#define ks8695_write(a,b) *((volatile unsigned int *) (KS8695_IO_BASE+(a))) = (b)
38
39/* ------------------------------------------------------------------------- */
40
41
42/*
43 * Miscelaneous platform dependent initialisations
44 */
45int env_flash_cmdline (void)
46{
47 unsigned char *sp = (unsigned char *) 0x0201c020;
48 unsigned char *ep;
49 int len;
50
51 /* Check if "erase" push button is depressed */
52 if ((ks8695_read(KS8695_GPIO_DATA) & 0x8) == 0) {
53 printf("### Entering network recovery mode...\n");
54 setenv("bootargs", "console=ttyAM0,115200 mem=32M initrd=0x400000,8M root=/dev/ram0");
55 setenv("bootcmd", "bootp 0x400000; gofsk 0x400000");
56 setenv("bootdelay", "2");
57 return 0;
58 }
59
60 /* Check for flash based kernel boot args to use as default */
61 for (ep = sp, len = 0; ((len < 1024) && (*ep != 0)); ep++, len++)
62 ;
63
64 if ((len > 0) && (len <1024))
65 setenv("bootargs", sp);
66
67 return 0;
68}
69
70int board_late_init (void)
71{
72 return 0;
73}
74
75
76int board_init (void)
77{
78 DECLARE_GLOBAL_DATA_PTR;
79
80 /* arch number of CM41xx */
81 gd->bd->bi_arch_number = 672;
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);
89
90 return 0;
91}
92
93int dram_init (void)
94{
95 DECLARE_GLOBAL_DATA_PTR;
96
97 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
98 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
99
100 return (0);
101}