From 6e97fad00676ce24352a3a5f51152fe02c4c206d Mon Sep 17 00:00:00 2001
From: scw <scw@NetBSD.org>
Date: Mon, 8 Dec 2003 16:15:31 +0000
Subject: [PATCH] Set up a temporary 1MB mapping to cover the SDRAM
 controller's registers.

---
 sys/arch/evbarm/ixdp425/ixdp425_start.S | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sys/arch/evbarm/ixdp425/ixdp425_start.S b/sys/arch/evbarm/ixdp425/ixdp425_start.S
index e30a078ef3de..6f1c6cfc48e1 100644
--- a/sys/arch/evbarm/ixdp425/ixdp425_start.S
+++ b/sys/arch/evbarm/ixdp425/ixdp425_start.S
@@ -1,4 +1,4 @@
-/*	$NetBSD: ixdp425_start.S,v 1.2 2003/05/24 01:59:32 ichiro Exp $ */
+/*	$NetBSD: ixdp425_start.S,v 1.3 2003/12/08 16:15:31 scw Exp $ */
 
 /*
  * Copyright (c) 2003
@@ -124,6 +124,20 @@ Lunmapped:
 	orr	r3, r3, #(L1_TYPE_S)
 	str	r3, [r0]
 
+	/*
+	 * Step 4: Map VA 0xf0200000->0xf0300000 to PA 0xcc000000->0xcc100000.
+	 */
+	adr	r0, Ltable			/* r0 = &l1table */
+	ldr	r0, [r0]
+
+	add	r0, r0, #(0xf00 * 4)		/* offset to 0xf0200000 */
+	add	r0, r0, #(0x002 * 4)
+	mov	r3, #0xcc000000
+	add	r3, r3, #0x00100000
+	orr	r3, r3, #(L1_S_AP(AP_KRW))
+	orr	r3, r3, #(L1_TYPE_S)
+	str	r3, [r0]
+
 	/* OK!  Page table is set up.  Give it to the CPU. */
 	adr	r0, Ltable
 	ldr	r0, [r0]