| wdenk | fc05687 | 2004-02-24 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 Denk | 6405a15 | 2006-03-31 18:32:53 +0200 | [diff] [blame] | 30 | DECLARE_GLOBAL_DATA_PTR; |
| 31 | |
| wdenk | fc05687 | 2004-02-24 02:01:43 +0000 | [diff] [blame] | 32 | /* |
| 33 | * Miscelaneous platform dependent initialization |
| 34 | */ |
| 35 | |
| 36 | int board_init (void) |
| 37 | { |
| wdenk | fc05687 | 2004-02-24 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 | /* |
| 81 | Configure chip ethernet interrupt as High level |
| 82 | Port G EINT 0-7 EINT0 -> CHIP ETHERNET |
| 83 | */ |
| 84 | temp = EXTINT; |
| 85 | temp &= ~0x7; |
| 86 | temp |= 0x1; /*LEVEL_HIGH*/ |
| 87 | EXTINT = temp; |
| 88 | |
| 89 | /* |
| 90 | Reset SMSC LAN91C96 chip |
| 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 */ |
| wdenk | 767fbd4 | 2004-10-10 18:41:04 +0000 | [diff] [blame] | 113 | gd->bd->bi_arch_number = MACH_TYPE_S3C44B0; |
| wdenk | fc05687 | 2004-02-24 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 | |
| 121 | int dram_init (void) |
| 122 | { |
| wdenk | fc05687 | 2004-02-24 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 | } |