ar71xx: ag71xx: make switch register access atomic
[openwrt.git] / package / uboot-xburst / files / board / n516 / n516.c
1 /*
2 * (C) Copyright 2006
3 * Ingenic Semiconductor, <jlwei@ingenic.cn>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18 * MA 02111-1307 USA
19 */
20
21 #include <common.h>
22 #include <command.h>
23 #include <asm/mipsregs.h>
24 #include <asm/jz4740.h>
25 #include <asm/addrspace.h>
26 #include <asm/cacheops.h>
27
28 void _machine_restart(void)
29 {
30 __wdt_select_extalclk();
31 __wdt_select_clk_div64();
32 __wdt_set_data(100);
33 __wdt_set_count(0);
34 __tcu_start_wdt_clock();
35 __wdt_start();
36 while(1);
37
38 }
39
40 static void gpio_init(void)
41 {
42
43 REG_GPIO_PXPES(0) = 0xffffffff;
44 REG_GPIO_PXPES(1) = 0xffffffff;
45 REG_GPIO_PXPES(2) = 0xffffffff;
46 REG_GPIO_PXPES(3) = 0xffffffff;
47
48 /*
49 * Initialize NAND Flash Pins
50 */
51 __gpio_as_nand();
52
53 /*
54 * Initialize SDRAM pins
55 */
56 __gpio_as_sdram_32bit();
57
58 /*
59 * Initialize UART0 pins
60 */
61 __gpio_as_uart0();
62
63 /*
64 * Initialize MSC pins
65 */
66 __gpio_as_msc();
67
68 /*
69 * Initialize LCD pins
70 */
71 __gpio_as_lcd_16bit();
72
73 /*
74 * Initialize Other pins
75 */
76 __gpio_as_output(GPIO_SD_VCC_EN_N);
77 __gpio_clear_pin(GPIO_SD_VCC_EN_N);
78
79 __gpio_as_input(GPIO_SD_CD_N);
80 __gpio_disable_pull(GPIO_SD_CD_N);
81
82 __gpio_as_output(GPIO_DISP_OFF_N);
83
84 __gpio_as_output(GPIO_LED_EN);
85 __gpio_set_pin(GPIO_LED_EN);
86
87 __gpio_as_input(127);
88 }
89
90 static void cpm_init(void)
91 {
92 __cpm_stop_ipu();
93 __cpm_stop_cim();
94 __cpm_stop_i2c();
95 __cpm_stop_ssi();
96 __cpm_stop_uart1();
97 __cpm_stop_sadc();
98 __cpm_stop_uhc();
99 __cpm_stop_udc();
100 __cpm_stop_aic1();
101 __cpm_stop_aic2();
102 __cpm_suspend_udcphy();
103 __cpm_suspend_usbphy();
104 }
105
106 //----------------------------------------------------------------------
107 // board early init routine
108
109 void board_early_init(void)
110 {
111 gpio_init();
112 cpm_init();
113 }
114
115 //----------------------------------------------------------------------
116 // U-Boot common routines
117
118 int checkboard (void)
119 {
120 DECLARE_GLOBAL_DATA_PTR;
121
122 printf("Board: Hanvon n516 e-book (CPU Speed %d MHz)\n",
123 gd->cpu_clk/1000000);
124
125 return 0; /* success */
126 }
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