From 5da627a424b3ad2d38a81886ba4a18e5123a6788 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Thu, 9 Oct 2003 20:09:04 +0000
Subject: * Patch by Steven Scholz, 10 Oct 2003   - Add support for Altera FPGA
 ACEX1K

* Patches by Thomas Lange, 09 Oct 2003:
  - Endian swap ATA identity for all big endian CPUs, not just PPC
  - MIPS only: New option CONFIG_MEMSIZE_IN_BYTES for passing memsize
    args to linux
  - add support for dbau1x00 board (MIPS32)
---
 board/dbau1x00/dbau1x00.c | 110 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 board/dbau1x00/dbau1x00.c

(limited to 'board/dbau1x00/dbau1x00.c')

diff --git a/board/dbau1x00/dbau1x00.c b/board/dbau1x00/dbau1x00.c
new file mode 100644
index 000000000..3b6fcec1c
--- /dev/null
+++ b/board/dbau1x00/dbau1x00.c
@@ -0,0 +1,110 @@
+/*
+ * (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
+}
-- 
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