blob: a7b6e70f497648291c8b3c5d18e2221a9acafeff [file] [log] [blame]
Matthias Weisserdcf0dca2010-08-09 13:31:51 +02001/*
2 * (c) 2010 Graf-Syteco, Matthias Weisser
3 * <weisserm@arcor.de>
4 *
5 * (C) Copyright 2007, mycable GmbH
6 * Carsten Schneider <cs@mycable.de>, Alexander Bigga <ab@mycable.de>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <netdev.h>
26#include <asm/io.h>
27#include <asm/arch/mb86r0x.h>
28
29DECLARE_GLOBAL_DATA_PTR;
30
31/*
32 * Miscellaneous platform dependent initialisations
33 */
34int board_init(void)
35{
36 struct mb86r0x_ccnt * ccnt = (struct mb86r0x_ccnt *)
37 MB86R0x_CCNT_BASE;
38
39 /* We select mode 0 for group 2 and mode 1 for group 4 */
40 writel(0x00000010, &ccnt->cmux_md);
41
42 gd->flags = 0;
43 gd->bd->bi_arch_number = MACH_TYPE_JADECPU;
44 gd->bd->bi_boot_params = PHYS_SDRAM + PHYS_SDRAM_SIZE - 0x10000;
45
46 icache_enable();
Matthias Weisser71a7b522011-06-29 02:08:07 +000047 dcache_enable();
Matthias Weisserdcf0dca2010-08-09 13:31:51 +020048
49 return 0;
50}
51
52static void setup_display_power(uint32_t pwr_bit, char *pwm_opts,
53 unsigned long pwm_base)
54{
55 struct mb86r0x_gpio *gpio = (struct mb86r0x_gpio *)
56 MB86R0x_GPIO_BASE;
57 struct mb86r0x_pwm *pwm = (struct mb86r0x_pwm *) pwm_base;
58 const char *e;
59
60 writel(readl(&gpio->gpdr2) | pwr_bit, &gpio->gpdr2);
61
62 e = getenv(pwm_opts);
63 if (e != NULL) {
64 const char *s;
65 uint32_t freq, init;
66
67 freq = 0;
68 init = 0;
69
70 s = strchr(e, 'f');
71 if (s != NULL)
72 freq = simple_strtol(s + 2, NULL, 0);
73
74 s = strchr(e, 'i');
75 if (s != NULL)
76 init = simple_strtol(s + 2, NULL, 0);
77
78 if (freq > 0) {
79 writel(CONFIG_MB86R0x_IOCLK / 1000 / freq,
80 &pwm->bcr);
81 writel(1002, &pwm->tpr);
82 writel(1, &pwm->pr);
83 writel(init * 10 + 1, &pwm->dr);
84 writel(1, &pwm->cr);
85 writel(1, &pwm->sr);
86 }
87 }
88}
89
90int board_late_init(void)
91{
92 struct mb86r0x_gpio *gpio = (struct mb86r0x_gpio *)
93 MB86R0x_GPIO_BASE;
94 uint32_t in_word;
95
96#ifdef CONFIG_VIDEO_MB86R0xGDC
97 /* Check if we have valid display settings and turn on power if so */
98 /* Display 0 */
99 if (getenv("gs_dsp_0_param") || getenv("videomode"))
100 setup_display_power((1 << 3), "gs_dsp_0_pwm",
101 MB86R0x_PWM0_BASE);
102
103 /* The corresponding GPIO is always an output */
104 writel(readl(&gpio->gpddr2) | (1 << 3), &gpio->gpddr2);
105
106 /* Display 1 */
107 if (getenv("gs_dsp_1_param") || getenv("videomode1"))
108 setup_display_power((1 << 4), "gs_dsp_1_pwm",
109 MB86R0x_PWM1_BASE);
110
111 /* The corresponding GPIO is always an output */
112 writel(readl(&gpio->gpddr2) | (1 << 4), &gpio->gpddr2);
113#endif /* CONFIG_VIDEO_MB86R0xGDC */
114
115 /* 5V enable */
116 writel(readl(&gpio->gpdr1) & ~(1 << 5), &gpio->gpdr1);
117 writel(readl(&gpio->gpddr1) | (1 << 5), &gpio->gpddr1);
118
119 /* We have special boot options if told by GPIOs */
120 in_word = readl(&gpio->gpdr1);
121
122 if ((in_word & 0xC0) == 0xC0) {
123 setenv("stdin", "serial");
124 setenv("stdout", "serial");
125 setenv("stderr", "serial");
126 setenv("preboot", "run gs_slow_boot");
127 } else if ((in_word & 0xC0) != 0) {
128 setenv("stdout", "vga");
Matthias Weisserdcf0dca2010-08-09 13:31:51 +0200129 setenv("preboot", "run gs_slow_boot");
130 } else {
131 setenv("stdin", "serial");
132 setenv("stdout", "serial");
133 setenv("stderr", "serial");
134 if (getenv("gs_devel")) {
135 setenv("preboot", "run gs_slow_boot");
136 } else {
Matthias Weisserdcf0dca2010-08-09 13:31:51 +0200137 setenv("preboot", "run gs_fast_boot");
138 }
139 }
140
141 return 0;
142}
143
144int misc_init_r(void)
145{
146 return 0;
147}
148
149/*
150 * DRAM configuration
151 */
152int dram_init(void)
153{
Matthias Weisser4036dea2010-09-21 15:37:44 +0200154 /* dram_init must store complete ramsize in gd->ram_size */
155 gd->ram_size = get_ram_size((volatile void *)PHYS_SDRAM,
156 PHYS_SDRAM_SIZE);
Matthias Weisserdcf0dca2010-08-09 13:31:51 +0200157
158 return 0;
159}
160
Matthias Weisser4036dea2010-09-21 15:37:44 +0200161void dram_init_banksize(void)
162{
163 gd->bd->bi_dram[0].start = PHYS_SDRAM;
164 gd->bd->bi_dram[0].size = gd->ram_size;
165}
166
Matthias Weisserdcf0dca2010-08-09 13:31:51 +0200167int board_eth_init(bd_t *bis)
168{
169 int rc = 0;
170#ifdef CONFIG_SMC911X
171 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
172#endif
173 return rc;
174}