3 * Thomas.Lange@corelatus.se
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #include <asm/au1x00.h>
27 #include <asm/mipsregs.h>
29 long int initdram(int board_type)
31 /* Sdram is setup by assembler code */
32 /* If memory could be changed, we should return the true value here */
36 #define BCSR_PCMCIA_PC0DRVEN 0x0010
37 #define BCSR_PCMCIA_PC0RST 0x0080
39 /* In cpu/mips/cpu.c */
40 void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
45 /* volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10); */
46 volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
49 *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
51 proc_id = read_32bit_cp0_register(CP0_PRID);
53 switch (proc_id >> 24) {
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);
60 puts ("Board: Pb1500\n");
61 printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n",
62 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
65 puts ("Board: Pb1100\n");
66 printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n",
67 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
70 printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id);
72 #if defined(CONFIG_IDE_PCMCIA) && 0
73 /* Enable 3.3 V on slot 0 ( VCC )
76 *pcmcia_bcsr = status;
78 status |= BCSR_PCMCIA_PC0DRVEN;
79 *pcmcia_bcsr = status;
84 status |= BCSR_PCMCIA_PC0RST;
85 *pcmcia_bcsr = status;
90 /* PCMCIA is on a 36 bit physical address.
91 We need to map it into a 32 bit addresses */
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 */
99 0x3C200017); /* Lo1 */
101 write_one_tlb(21, /* index */
102 0x01ffe000, /* Pagemask, 16 MB pages */
103 CFG_PCMCIA_ATTR_BASE, /* Hi */
104 0x3D000017, /* Lo0 */
105 0x3D200017); /* Lo1 */
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 */