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 */
33 return MEM_SIZE*1024*1024;
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 );
44 #ifdef CONFIG_IDE_PCMCIA
46 volatile u32 *pcmcia_bcsr = (u32*)(DB1XX0_BCSR_ADDR+0x10);
47 #endif /* CONFIG_IDE_PCMCIA */
48 volatile u32 *phy = (u32*)(DB1XX0_BCSR_ADDR+0xC);
49 volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
52 *sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
54 proc_id = read_32bit_cp0_register(CP0_PRID);
56 switch (proc_id >> 24) {
58 puts ("Board: Merlot (DbAu1000)\n");
59 printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n",
60 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
63 puts ("Board: DbAu1500\n");
64 printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n",
65 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
68 puts ("Board: DbAu1100\n");
69 printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n",
70 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
73 puts ("Board: DbAu1550\n");
74 printf ("CPU: Au1550, id: 0x%02x, rev: 0x%02x\n",
75 (proc_id >> 8) & 0xFF, proc_id & 0xFF);
78 printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id);
80 #ifdef CONFIG_IDE_PCMCIA
81 /* Enable 3.3 V on slot 0 ( VCC )
84 *pcmcia_bcsr = status;
86 status |= BCSR_PCMCIA_PC0DRVEN;
87 *pcmcia_bcsr = status;
92 status |= BCSR_PCMCIA_PC0RST;
93 *pcmcia_bcsr = status;
98 /* PCMCIA is on a 36 bit physical address.
99 We need to map it into a 32 bit addresses */
102 /* We dont need theese unless we run whole pcmcia package */
103 write_one_tlb(20, /* index */
104 0x01ffe000, /* Pagemask, 16 MB pages */
105 CFG_PCMCIA_IO_BASE, /* Hi */
106 0x3C000017, /* Lo0 */
107 0x3C200017); /* Lo1 */
109 write_one_tlb(21, /* index */
110 0x01ffe000, /* Pagemask, 16 MB pages */
111 CFG_PCMCIA_ATTR_BASE, /* Hi */
112 0x3D000017, /* Lo0 */
113 0x3D200017); /* Lo1 */
115 write_one_tlb(22, /* index */
116 0x01ffe000, /* Pagemask, 16 MB pages */
117 CFG_PCMCIA_MEM_ADDR, /* Hi */
118 0x3E000017, /* Lo0 */
119 0x3E200017); /* Lo1 */
120 #endif /* CONFIG_IDE_PCMCIA */
122 /* Release reset of ethernet PHY chips */
123 /* Always do this, because linux does not know about it */