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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 04531f3c11c693dc54924f82c41979d960309c9d / . / board / dave / B2 / B2.c
blob: ec742adc7f81e75b7c299c9119e737352ce67a1b [file] [log] [blame]
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]1/*
2 * (C) Copyright 2004
3 * DAVE Srl
4 * http://www.dave-tech.it
5 * http://www.wawnet.biz
6 * mailto:info@wawnet.biz
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <asm/hardware.h>
29
Wolfgang Denkd87080b2006-03-31 18:32:53 +0200[diff] [blame]30DECLARE_GLOBAL_DATA_PTR;
31
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]32/*
33 * Miscelaneous platform dependent initialization
34 */
35
36int board_init (void)
37{
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]38 u32 temp;
39
40 /* Configuration Port Control Register*/
41 /* Port A */
42 PCONA = 0x3ff;
43
44 /* Port B */
45 PCONB = 0xff;
46 PDATB = 0xFFFF;
47
48 /* Port C */
49 /*
50 PCONC = 0xff55ff15;
51 PDATC = 0x0;
52 PUPC = 0xffff;
53 */
54
55 /* Port D */
56 /*
57 PCOND = 0xaaaa;
58 PUPD = 0xff;
59 */
60
61 /* Port E */
62 PCONE = 0x0001aaa9;
63 PDATE = 0x0;
64 PUPE = 0xff;
65
66 /* Port F */
67 PCONF = 0x124955;
68 PDATF = 0xff; /* B2-eth_reset tied high level */
69 /*
70 PUPF = 0x1e3;
71 */
72
73 /* Port G */
74 PUPG = 0x1;
75 PCONG = 0x3; /*PG0= EINT0= ETH_INT prepared for linux kernel*/
76
77 INTMSK = 0x03fffeff;
78 INTCON = 0x05;
79
80 /*
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]81 Configure chip ethernet interrupt as High level
82 Port G EINT 0-7 EINT0 -> CHIP ETHERNET
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]83 */
84 temp = EXTINT;
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]85 temp &= ~0x7;
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]86 temp |= 0x1; /*LEVEL_HIGH*/
87 EXTINT = temp;
88
89 /*
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]90 Reset SMSC LAN91C96 chip
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]91 */
92 temp= PCONF;
93 temp |= 0x00000040;
94 PCONF = temp;
95
96 /* Reset high */
97 temp = PDATF;
98 temp |= (1 << 3);
99 PDATF = temp;
100
101 /* Short delay */
102 for (temp=0;temp<10;temp++)
103 {
104 /* NOP */
105 }
106
107 /* Reset low */
108 temp = PDATF;
109 temp &= ~(1 << 3);
110 PDATF = temp;
111
112 /* arch number MACH_TYPE_MBA44B0 */
wdenk731215e2004-10-10 18:41:04 +0000[diff] [blame]113 gd->bd->bi_arch_number = MACH_TYPE_S3C44B0;
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]114
115 /* location of boot parameters */
116 gd->bd->bi_boot_params = 0x0c000100;
117
118 return 0;
119}
120
121int dram_init (void)
122{
wdenk5cfbab32004-02-24 02:01:43 +0000[diff] [blame]123 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
124 gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
125
126 return (0);
127}