1 /* 2 * (C) Copyright 2003 3 * Thomas.Lange@corelatus.se 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 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 <command.h> 26 #include <asm/au1x00.h> 27 #include <asm/mipsregs.h> 28 29 long int initdram(int board_type) 30 { 31 /* Sdram is setup by assembler code */ 32 /* If memory could be changed, we should return the true value here */ 33 return 64*1024*1024; 34 } 35 36 #define BCSR_PCMCIA_PC0DRVEN 0x0010 37 #define BCSR_PCMCIA_PC0RST 0x0080 38 39 /* In cpu/mips/cpu.c */ 40 void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 ); 41 42 int checkboard (void) 43 { 44 u16 status; 45 /* volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10); */ 46 volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL; 47 u32 proc_id; 48 49 *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */ 50 51 proc_id = read_32bit_cp0_register(CP0_PRID); 52 53 switch (proc_id >> 24) { 54 case 0: 55 puts ("Board: Pb1000\n"); 56 printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n", 57 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 58 break; 59 case 1: 60 puts ("Board: Pb1500\n"); 61 printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n", 62 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 63 break; 64 case 2: 65 puts ("Board: Pb1100\n"); 66 printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n", 67 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 68 break; 69 default: 70 printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id); 71 } 72 #if defined(CONFIG_IDE_PCMCIA) && 0 73 /* Enable 3.3 V on slot 0 ( VCC ) 74 No 5V */ 75 status = 4; 76 *pcmcia_bcsr = status; 77 78 status |= BCSR_PCMCIA_PC0DRVEN; 79 *pcmcia_bcsr = status; 80 au_sync(); 81 82 udelay(300*1000); 83 84 status |= BCSR_PCMCIA_PC0RST; 85 *pcmcia_bcsr = status; 86 au_sync(); 87 88 udelay(100*1000); 89 90 /* PCMCIA is on a 36 bit physical address. 91 We need to map it into a 32 bit addresses */ 92 93 #if 0 94 /* We dont need theese unless we run whole pcmcia package */ 95 write_one_tlb(20, /* index */ 96 0x01ffe000, /* Pagemask, 16 MB pages */ 97 CFG_PCMCIA_IO_BASE, /* Hi */ 98 0x3C000017, /* Lo0 */ 99 0x3C200017); /* Lo1 */ 100 101 write_one_tlb(21, /* index */ 102 0x01ffe000, /* Pagemask, 16 MB pages */ 103 CFG_PCMCIA_ATTR_BASE, /* Hi */ 104 0x3D000017, /* Lo0 */ 105 0x3D200017); /* Lo1 */ 106 #endif /* 0 */ 107 write_one_tlb(22, /* index */ 108 0x01ffe000, /* Pagemask, 16 MB pages */ 109 CFG_PCMCIA_MEM_ADDR, /* Hi */ 110 0x3E000017, /* Lo0 */ 111 0x3E200017); /* Lo1 */ 112 #endif /* CONFIG_IDE_PCMCIA */ 113 114 return 0; 115 } 116