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wdenk43d96162003-03-06 00:02:04 +00001/*
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>
Ben Warren7194ab82009-10-04 22:37:03 -070027#include <netdev.h>
wdenk43d96162003-03-06 00:02:04 +000028#include <asm/arch/pxa-regs.h>
wdenk47cd00f2003-03-06 13:39:27 +000029#include <asm/mach-types.h>
Marek Vasut3ba8bf72010-09-09 09:50:39 +020030#include <asm/io.h>
wdenk43d96162003-03-06 00:02:04 +000031
Wolfgang Denkd87080b2006-03-31 18:32:53 +020032DECLARE_GLOBAL_DATA_PTR;
33
wdenk43d96162003-03-06 00:02:04 +000034#ifdef CONFIG_SHOW_BOOT_PROGRESS
35# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
36#else
37# define SHOW_BOOT_PROGRESS(arg)
38#endif
39
wdenk47cd00f2003-03-06 13:39:27 +000040/**
41 * i2c_init_board - reset i2c bus. When the board is powercycled during a
42 * bus transfer it might hang; for details see doc/I2C_Edge_Conditions.
43 * The Innokom board has GPIO70 connected to SCLK which can be toggled
44 * until all chips think that their current cycles are finished.
wdenk43d96162003-03-06 00:02:04 +000045 */
wdenkdc7c9a12003-03-26 06:55:25 +000046int i2c_init_board(void)
wdenk47cd00f2003-03-06 13:39:27 +000047{
wdenkdc7c9a12003-03-26 06:55:25 +000048 int i, icr;
wdenk47cd00f2003-03-06 13:39:27 +000049
wdenkdc7c9a12003-03-26 06:55:25 +000050 /* disable I2C controller first, otherwhise it thinks we want to */
51 /* talk to the slave port... */
Marek Vasut3ba8bf72010-09-09 09:50:39 +020052 icr = readl(ICR);
53 writel(readl(ICR) & ~(ICR_SCLE | ICR_IUE), ICR);
wdenk8bde7f72003-06-27 21:31:46 +000054
wdenkdc7c9a12003-03-26 06:55:25 +000055 /* set gpio pin low _before_ we change direction to output */
Marek Vasut3ba8bf72010-09-09 09:50:39 +020056 writel(GPIO_bit(70), GPCR(70));
wdenk8bde7f72003-06-27 21:31:46 +000057
wdenkdc7c9a12003-03-26 06:55:25 +000058 /* now toggle between output=low and high-impedance */
59 for (i = 0; i < 20; i++) {
Marek Vasut3ba8bf72010-09-09 09:50:39 +020060 writel(readl(GPDR(70)) | GPIO_bit(70), GPDR(70)); /* output */
wdenk47cd00f2003-03-06 13:39:27 +000061 udelay(10);
Marek Vasut3ba8bf72010-09-09 09:50:39 +020062 writel(readl(GPDR(70)) & ~GPIO_bit(70), GPDR(70)); /* input */
wdenk47cd00f2003-03-06 13:39:27 +000063 udelay(10);
64 }
wdenkdc7c9a12003-03-26 06:55:25 +000065
Marek Vasut3ba8bf72010-09-09 09:50:39 +020066 writel(icr, ICR);
wdenkdc7c9a12003-03-26 06:55:25 +000067
68 return 0;
wdenk47cd00f2003-03-06 13:39:27 +000069}
70
71
72/**
73 * misc_init_r: - misc initialisation routines
74 */
75
76int misc_init_r(void)
77{
Jean-Christophe PLAGNIOL-VILLARD96455bf2007-10-19 00:07:39 +020078 char *str;
wdenk47cd00f2003-03-06 13:39:27 +000079
80 /* determine if the software update key is pressed during startup */
Marek Vasut3ba8bf72010-09-09 09:50:39 +020081 if (readl(GPLR0) & 0x00000800) {
wdenk47cd00f2003-03-06 13:39:27 +000082 printf("using bootcmd_normal (sw-update button not pressed)\n");
83 str = getenv("bootcmd_normal");
84 } else {
85 printf("using bootcmd_update (sw-update button pressed)\n");
86 str = getenv("bootcmd_update");
87 }
88
89 setenv("bootcmd",str);
90
91 return 0;
92}
wdenk43d96162003-03-06 00:02:04 +000093
94
95/**
96 * board_init: - setup some data structures
97 *
98 * @return: 0 in case of success
99 */
100
101int board_init (void)
102{
Marek Vasutdf1ac0e2010-10-20 20:52:21 +0200103 /* We have RAM, disable cache */
104 dcache_disable();
105 icache_disable();
wdenk43d96162003-03-06 00:02:04 +0000106
wdenk47cd00f2003-03-06 13:39:27 +0000107 gd->bd->bi_arch_number = MACH_TYPE_INNOKOM;
wdenk43d96162003-03-06 00:02:04 +0000108 gd->bd->bi_boot_params = 0xa0000100;
wdenkdc7c9a12003-03-26 06:55:25 +0000109 gd->bd->bi_baudrate = CONFIG_BAUDRATE;
110
wdenk43d96162003-03-06 00:02:04 +0000111 return 0;
112}
113
Marek Vasutdf1ac0e2010-10-20 20:52:21 +0200114extern void pxa_dram_init(void);
115int dram_init(void)
wdenk43d96162003-03-06 00:02:04 +0000116{
Marek Vasutdf1ac0e2010-10-20 20:52:21 +0200117 pxa_dram_init();
118 gd->ram_size = PHYS_SDRAM_1_SIZE;
wdenk43d96162003-03-06 00:02:04 +0000119 return 0;
120}
121
Marek Vasutdf1ac0e2010-10-20 20:52:21 +0200122void dram_init_banksize(void)
123{
124 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
125 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
126}
wdenk43d96162003-03-06 00:02:04 +0000127
128/**
129 * innokom_set_led: - switch LEDs on or off
130 *
131 * @param led: LED to switch (0,1,2)
132 * @param state: switch on (1) or off (0)
133 */
134
135void innokom_set_led(int led, int state)
136{
137 switch(led) {
138/*
139 case 0: if (state==1) {
140 GPCR0 |= CSB226_USER_LED0;
141 } else if (state==0) {
142 GPSR0 |= CSB226_USER_LED0;
143 }
144 break;
145
146 case 1: if (state==1) {
wdenk8bde7f72003-06-27 21:31:46 +0000147 GPCR0 |= CSB226_USER_LED1;
148 } else if (state==0) {
149 GPSR0 |= CSB226_USER_LED1;
150 }
151 break;
wdenk43d96162003-03-06 00:02:04 +0000152
153 case 2: if (state==1) {
wdenk8bde7f72003-06-27 21:31:46 +0000154 GPCR0 |= CSB226_USER_LED2;
155 } else if (state==0) {
156 GPSR0 |= CSB226_USER_LED2;
157 }
158 break;
wdenk43d96162003-03-06 00:02:04 +0000159*/
160 }
161
162 return;
163}
164
165
166/**
167 * show_boot_progress: - indicate state of the boot process
168 *
169 * @param status: Status number - see README for details.
170 *
171 * The CSB226 does only have 3 LEDs, so we switch them on at the most
172 * important states (1, 5, 15).
173 */
174
175void show_boot_progress (int status)
176{
177 switch(status) {
178/*
179 case 1: csb226_set_led(0,1); break;
180 case 5: csb226_set_led(1,1); break;
181 case 15: csb226_set_led(2,1); break;
182*/
183 }
184
185 return;
186}
Ben Warren7194ab82009-10-04 22:37:03 -0700187
188#ifdef CONFIG_CMD_NET
189int board_eth_init(bd_t *bis)
190{
191 int rc = 0;
192#ifdef CONFIG_SMC91111
193 rc = smc91111_initialize(0, CONFIG_SMC91111_BASE);
194#endif
195 return rc;
196}
197#endif