1 files changed, 82 insertions, 0 deletions
diff --git a/board/mx1ads/memsetup.S b/board/mx1ads/memsetup.S
new file mode 100644
index 0000000..39b71fe
--- /dev/null
+++ b/board/mx1ads/memsetup.S
@@ -0,0 +1,82 @@
+/*
+ * board/mx1ads/memsetup.S
+ * 
+ * (c) Copyright 2004
+ * Techware Information Technology, Inc.
+ * http://www.techware.com.tw/
+ *
+ * Ming-Len Wu <minglen_wu@techware.com.tw>
+ *
+ * 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 <config.h>
+#include <version.h>
+
+#define SDCTL0			0x221000
+#define SDCTL1			0x221004
+
+
+_TEXT_BASE:
+	.word	TEXT_BASE
+
+.globl memsetup
+memsetup:
+/* memory controller init	 	*/
+
+	ldr  r1, =SDCTL0
+
+/*  Set Precharge Command		*/
+
+	ldr  r3, =0x92120200
+/*	ldr  r3, =0x92120251
+*/
+	str  r3, [r1]
+
+/* Issue Precharge All Commad		*/
+	ldr  r3, =0x8200000
+	ldr  r2, [r3]
+                                                                                                                                     
+/* Set AutoRefresh Command 		*/
+	ldr  r3, =0xA2120200
+	str  r3, [r1]
+
+/* Issue AutoRefresh Command		*/
+	ldr  r3, =0x8000000
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+	ldr  r2, [r3]
+                                                                                                                                     
+/* Set Mode Register 			*/
+	ldr  r3, =0xB2120200
+	str  r3, [r1]
+                                                                                                                                     
+/* Issue Mode Register Command		*/
+	ldr  r3, =0x08111800 	/* Mode Register Value 		*/
+	ldr  r2, [r3]
+
+/* Set Normal Mode			*/
+	ldr  r3, =0x82124200
+	str  r3, [r1]
+
+/* everything is fine now 		*/
+	mov	pc, lr
+