add u-boot sources for danube

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11108 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ifxmips/image/u-boot/files/board/danube/pmuenable.S

@@ -0,0 +1,48 @@
+/*
+ *  Power Management unit initialization code for AMAZON development board.
+ *
+ *  Copyright (c) 2003	Ou Ke, Infineon.
+ *
+ * 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 <config.h>
+#include <version.h>
+#include <asm/regdef.h>
+
+#define PMU_PWDCR 		0xBF10201C
+#define PMU_SR			0xBF102020
+
+	.globl	pmuenable
+
+pmuenable:
+	li      t0, PMU_PWDCR
+	li      t1, 0x2		/* enable everything */
+	sw      t1, 0(t0)
+#if 0
+1:
+	li	t0, PMU_SR
+	lw      t2, 0(t0)
+	bne     t1, t2, 1b
+	nop
+#endif
+	j	ra
+	nop
+
+