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 #include <asm/io.h> 29 30 long int initdram(int board_type) 31 { 32 /* Sdram is setup by assembler code */ 33 /* If memory could be changed, we should return the true value here */ 34 return 64*1024*1024; 35 } 36 37 #define BCSR_PCMCIA_PC0DRVEN 0x0010 38 #define BCSR_PCMCIA_PC0RST 0x0080 39 40 /* In cpu/mips/cpu.c */ 41 void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 ); 42 43 int checkboard (void) 44 { 45 u16 status; 46 /* volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10); */ 47 volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL; 48 u32 proc_id; 49 50 *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */ 51 52 proc_id = read_32bit_cp0_register(CP0_PRID); 53 54 switch (proc_id >> 24) { 55 case 0: 56 puts ("Board: Pb1000\n"); 57 printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n", 58 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 59 break; 60 case 1: 61 puts ("Board: Pb1500\n"); 62 printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n", 63 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 64 break; 65 case 2: 66 puts ("Board: Pb1100\n"); 67 printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n", 68 (proc_id >> 8) & 0xFF, proc_id & 0xFF); 69 break; 70 default: 71 printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id); 72 } 73 74 set_io_port_base(0); 75 76 #if defined(CONFIG_IDE_PCMCIA) && 0 77 /* Enable 3.3 V on slot 0 ( VCC ) 78 No 5V */ 79 status = 4; 80 *pcmcia_bcsr = status; 81 82 status |= BCSR_PCMCIA_PC0DRVEN; 83 *pcmcia_bcsr = status; 84 au_sync(); 85 86 udelay(300*1000); 87 88 status |= BCSR_PCMCIA_PC0RST; 89 *pcmcia_bcsr = status; 90 au_sync(); 91 92 udelay(100*1000); 93 94 /* PCMCIA is on a 36 bit physical address. 95 We need to map it into a 32 bit addresses */ 96 97 #if 0 98 /* We dont need theese unless we run whole pcmcia package */ 99 write_one_tlb(20, /* index */ 100 0x01ffe000, /* Pagemask, 16 MB pages */ 101 CFG_PCMCIA_IO_BASE, /* Hi */ 102 0x3C000017, /* Lo0 */ 103 0x3C200017); /* Lo1 */ 104 105 write_one_tlb(21, /* index */ 106 0x01ffe000, /* Pagemask, 16 MB pages */ 107 CFG_PCMCIA_ATTR_BASE, /* Hi */ 108 0x3D000017, /* Lo0 */ 109 0x3D200017); /* Lo1 */ 110 #endif /* 0 */ 111 write_one_tlb(22, /* index */ 112 0x01ffe000, /* Pagemask, 16 MB pages */ 113 CFG_PCMCIA_MEM_ADDR, /* Hi */ 114 0x3E000017, /* Lo0 */ 115 0x3E200017); /* Lo1 */ 116 #endif /* CONFIG_IDE_PCMCIA */ 117 118 return 0; 119 } 120