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/*
* (C) Copyright 2003
* Thomas.Lange@corelatus.se
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/au1x00.h>
#include <asm/mipsregs.h>
#include <asm/io.h>
phys_size_t initdram(int board_type)
{
/* Sdram is setup by assembler code */
/* If memory could be changed, we should return the true value here */
return MEM_SIZE*1024*1024;
}
#define BCSR_PCMCIA_PC0DRVEN 0x0010
#define BCSR_PCMCIA_PC0RST 0x0080
/* In arch/mips/cpu/cpu.c */
void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
int checkboard (void)
{
#ifdef CONFIG_IDE_PCMCIA
u16 status;
volatile u32 *pcmcia_bcsr = (u32*)(DB1XX0_BCSR_ADDR+0x10);
#endif /* CONFIG_IDE_PCMCIA */
volatile u32 *phy = (u32*)(DB1XX0_BCSR_ADDR+0xC);
volatile u32 *sys_counter = (volatile u32*)SYS_COUNTER_CNTRL;
u32 proc_id;
*sys_counter = 0x100; /* Enable 32 kHz oscillator for RTC/TOY */
proc_id = read_c0_prid();
switch (proc_id >> 24) {
case 0:
puts ("Board: Merlot (DbAu1000)\n");
printf ("CPU: Au1000 396 MHz, id: 0x%02x, rev: 0x%02x\n",
(proc_id >> 8) & 0xFF, proc_id & 0xFF);
break;
case 1:
puts ("Board: DbAu1500\n");
printf ("CPU: Au1500, id: 0x%02x, rev: 0x%02x\n",
(proc_id >> 8) & 0xFF, proc_id & 0xFF);
break;
case 2:
puts ("Board: DbAu1100\n");
printf ("CPU: Au1100, id: 0x%02x, rev: 0x%02x\n",
(proc_id >> 8) & 0xFF, proc_id & 0xFF);
break;
case 3:
puts ("Board: DbAu1550\n");
printf ("CPU: Au1550, id: 0x%02x, rev: 0x%02x\n",
(proc_id >> 8) & 0xFF, proc_id & 0xFF);
break;
default:
printf ("Unsupported cpu %d, proc_id=0x%x\n", proc_id >> 24, proc_id);
}
set_io_port_base(0);
#ifdef CONFIG_IDE_PCMCIA
/* Enable 3.3 V on slot 0 ( VCC )
No 5V */
status = 4;
*pcmcia_bcsr = status;
status |= BCSR_PCMCIA_PC0DRVEN;
*pcmcia_bcsr = status;
au_sync();
udelay(300*1000);
status |= BCSR_PCMCIA_PC0RST;
*pcmcia_bcsr = status;
au_sync();
udelay(100*1000);
/* PCMCIA is on a 36 bit physical address.
We need to map it into a 32 bit addresses */
#if 0
/* We dont need theese unless we run whole pcmcia package */
write_one_tlb(20, /* index */
0x01ffe000, /* Pagemask, 16 MB pages */
CONFIG_SYS_PCMCIA_IO_BASE, /* Hi */
0x3C000017, /* Lo0 */
0x3C200017); /* Lo1 */
write_one_tlb(21, /* index */
0x01ffe000, /* Pagemask, 16 MB pages */
CONFIG_SYS_PCMCIA_ATTR_BASE, /* Hi */
0x3D000017, /* Lo0 */
0x3D200017); /* Lo1 */
#endif /* 0 */
write_one_tlb(22, /* index */
0x01ffe000, /* Pagemask, 16 MB pages */
CONFIG_SYS_PCMCIA_MEM_ADDR, /* Hi */
0x3E000017, /* Lo0 */
0x3E200017); /* Lo1 */
#endif /* CONFIG_IDE_PCMCIA */
/* Release reset of ethernet PHY chips */
/* Always do this, because linux does not know about it */
*phy = 3;
return 0;
}
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