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-rw-r--r--board/dbau1x00/dbau1x00.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/board/dbau1x00/dbau1x00.c b/board/dbau1x00/dbau1x00.c
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+++ b/board/dbau1x00/dbau1x00.c
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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>
+
+long int initdram(int board_type)
+{
+ /* Sdram is setup by assembler code */
+ /* If memory could be changed, we should return the true value here */
+ return 64*1024*1024;
+}
+
+#define BCSR_PCMCIA_PC0DRVEN 0x0010
+#define BCSR_PCMCIA_PC0RST 0x0080
+
+/* In cpu/mips/cpu.c */
+void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 );
+
+int checkboard (void)
+{
+ u16 status;
+ volatile u32 *pcmcia_bcsr = (u32*)(DB1000_BCSR_ADDR+0x10);
+ volatile u32 *phy = (u32*)(DB1000_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_32bit_cp0_register(CP0_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;
+ default:
+ printf("Unsupported cpu %d, proc_id=0x%x\n",proc_id>>24,proc_id);
+ }
+#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 */
+ CFG_PCMCIA_IO_BASE, /* Hi */
+ 0x3C000017, /* Lo0 */
+ 0x3C200017); /* Lo1 */
+
+ write_one_tlb(21, /* index */
+ 0x01ffe000, /* Pagemask, 16 MB pages */
+ CFG_PCMCIA_ATTR_BASE, /* Hi */
+ 0x3D000017, /* Lo0 */
+ 0x3D200017); /* Lo1 */
+#endif
+ write_one_tlb(22, /* index */
+ 0x01ffe000, /* Pagemask, 16 MB pages */
+ CFG_PCMCIA_MEM_ADDR, /* Hi */
+ 0x3E000017, /* Lo0 */
+ 0x3E200017); /* Lo1 */
+
+ /* Release reset of ethernet PHY chips */
+ /* Always do this, because linux does not know about it */
+ *phy = 3;
+
+ return 0;
+#endif
+}