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
7 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 #include <asm/arch/pxa-regs.h>
29 #include <asm/mach-types.h>
32 DECLARE_GLOBAL_DATA_PTR;
34 #ifdef CONFIG_SHOW_BOOT_PROGRESS
35 # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
37 # define SHOW_BOOT_PROGRESS(arg)
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.
46 int i2c_init_board(void)
50 /* set gpio pin low _before_ we change direction to output */
51 writel(GPIO_bit(70), GPCR(70));
53 /* now toggle between output=low and high-impedance */
54 for (i = 0; i < 20; i++) {
55 writel(readl(GPDR(70)) | GPIO_bit(70), GPDR(70)); /* output */
57 writel(readl(GPDR(70)) & ~GPIO_bit(70), GPDR(70)); /* input */
66 * misc_init_r: - misc initialisation routines
73 /* determine if the software update key is pressed during startup */
74 if (readl(GPLR0) & 0x00000800) {
75 printf("using bootcmd_normal (sw-update button not pressed)\n");
76 str = getenv("bootcmd_normal");
78 printf("using bootcmd_update (sw-update button pressed)\n");
79 str = getenv("bootcmd_update");
82 setenv("bootcmd",str);
89 * board_init: - setup some data structures
91 * @return: 0 in case of success
96 /* We have RAM, disable cache */
100 gd->bd->bi_arch_number = MACH_TYPE_INNOKOM;
101 gd->bd->bi_boot_params = 0xa0000100;
102 gd->bd->bi_baudrate = CONFIG_BAUDRATE;
107 extern void pxa_dram_init(void);
111 gd->ram_size = PHYS_SDRAM_1_SIZE;
115 void dram_init_banksize(void)
117 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
118 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
122 * innokom_set_led: - switch LEDs on or off
124 * @param led: LED to switch (0,1,2)
125 * @param state: switch on (1) or off (0)
128 void innokom_set_led(int led, int state)
132 case 0: if (state==1) {
133 GPCR0 |= CSB226_USER_LED0;
134 } else if (state==0) {
135 GPSR0 |= CSB226_USER_LED0;
139 case 1: if (state==1) {
140 GPCR0 |= CSB226_USER_LED1;
141 } else if (state==0) {
142 GPSR0 |= CSB226_USER_LED1;
146 case 2: if (state==1) {
147 GPCR0 |= CSB226_USER_LED2;
148 } else if (state==0) {
149 GPSR0 |= CSB226_USER_LED2;
160 * show_boot_progress: - indicate state of the boot process
162 * @param status: Status number - see README for details.
164 * The CSB226 does only have 3 LEDs, so we switch them on at the most
165 * important states (1, 5, 15).
168 void show_boot_progress (int status)
172 case 1: csb226_set_led(0,1); break;
173 case 5: csb226_set_led(1,1); break;
174 case 15: csb226_set_led(2,1); break;
181 #ifdef CONFIG_CMD_NET
182 int board_eth_init(bd_t *bis)
185 #ifdef CONFIG_SMC91111
186 rc = smc91111_initialize(0, CONFIG_SMC91111_BASE);