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Ke Dong28743a42012-10-11 22:41:28 -07001/*
2 * (C) Copyright 2002
3 * Robert Schwebel, Pengutronix, r.schwebel@pengutronix.de
4 * Kyle Harris, Nexus Technologies, Inc., kharris@nexus-tech.net
5 * Marius Groeger, Sysgo Real-Time Solutions GmbH, mgroeger@sysgo.de
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26#include <common.h>
27#include <asm/arch/pxa-regs.h>
28
29DECLARE_GLOBAL_DATA_PTR;
30
31#ifdef CONFIG_SHOW_BOOT_PROGRESS
32# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
33#else
34# define SHOW_BOOT_PROGRESS(arg)
35#endif
36
37/**
38 * misc_init_r: - misc initialisation routines
39 */
40
41int misc_init_r(void)
42{
43#if 0
44 uchar *str;
45
46 /* determine if the software update key is pressed during startup */
47 /* not ported yet... */
48 if (GPLR0 & 0x00000800) {
49 printf("using bootcmd_normal (sw-update button not pressed)\n");
50 str = getenv("bootcmd_normal");
51 } else {
52 printf("using bootcmd_update (sw-update button pressed)\n");
53 str = getenv("bootcmd_update");
54 }
55
56 setenv("bootcmd",str);
57#endif
58 return 0;
59}
60
61
62/**
63 * board_init: - setup some data structures
64 *
65 * @return: 0 in case of success
66 */
67
68int board_init (void)
69{
70 /* memory and cpu-speed are setup before relocation */
71 /* so we do _nothing_ here */
72
73 /* arch number of CSB226 board */
74 gd->bd->bi_arch_number = MACH_TYPE_CSB226;
75
76 /* adress of boot parameters */
77 gd->bd->bi_boot_params = 0xa0000100;
78
79 return 0;
80}
81
82
83/**
84 * dram_init: - setup dynamic RAM
85 *
86 * @return: 0 in case of success
87 */
88
89int dram_init (void)
90{
91 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
92 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
93
94 return 0;
95}
96
97
98/**
99 * csb226_set_led: - switch LEDs on or off
100 *
101 * @param led: LED to switch (0,1,2)
102 * @param state: switch on (1) or off (0)
103 */
104
105void csb226_set_led(int led, int state)
106{
107 switch(led) {
108
109 case 0: if (state==1) {
110 GPCR0 |= CSB226_USER_LED0;
111 } else if (state==0) {
112 GPSR0 |= CSB226_USER_LED0;
113 }
114 break;
115
116 case 1: if (state==1) {
117 GPCR0 |= CSB226_USER_LED1;
118 } else if (state==0) {
119 GPSR0 |= CSB226_USER_LED1;
120 }
121 break;
122
123 case 2: if (state==1) {
124 GPCR0 |= CSB226_USER_LED2;
125 } else if (state==0) {
126 GPSR0 |= CSB226_USER_LED2;
127 }
128 break;
129 }
130
131 return;
132}
133
134
135/**
136 * show_boot_progress: - indicate state of the boot process
137 *
138 * @param status: Status number - see README for details.
139 *
140 * The CSB226 does only have 3 LEDs, so we switch them on at the most
141 * important states (1, 5, 15).
142 */
143
144void show_boot_progress (int status)
145{
146 switch(status) {
147 case 1: csb226_set_led(0,1); break;
148 case 5: csb226_set_led(1,1); break;
149 case 15: csb226_set_led(2,1); break;
150 }
151
152 return;
153}