From 327f7a020a3037ae8ef6c94488d5e9a3aa772943 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Wed, 28 Nov 2001 17:49:55 +0000
Subject: Initial revision

---
 cpu/mpc824x/drivers/i2o/i2o2.S | 48 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 cpu/mpc824x/drivers/i2o/i2o2.S

(limited to 'cpu/mpc824x/drivers/i2o/i2o2.S')

diff --git a/cpu/mpc824x/drivers/i2o/i2o2.S b/cpu/mpc824x/drivers/i2o/i2o2.S
new file mode 100644
index 0000000..1033979
--- /dev/null
+++ b/cpu/mpc824x/drivers/i2o/i2o2.S
@@ -0,0 +1,48 @@
+/**************************************
+ *
+ * copyright @ Motorola, 1999
+ *
+ **************************************/
+
+/**********************************************************
+ * function: load_runtime_reg
+ *
+ * input:  r3 - value of eumbbar
+ *         r4 - register offset in embedded utility space
+ *
+ * output: r3 - register content
+ **********************************************************/
+      .text
+      .align 2
+      .global load_runtime_reg
+
+load_runtime_reg:
+
+		  xor r5,r5,r5
+          or  r5,r5,r3       /* save eumbbar */
+
+	      lwbrx	r3,r4,r5
+	      sync
+
+ 	      bclr 20, 0
+
+/****************************************************************
+ * function: store_runtime_reg
+ *
+ * input: r3 - value of eumbbar
+ *        r4 - register offset in embedded utility space
+ *        r5 - new value to be stored
+ *
+ ****************************************************************/
+           .text
+           .align 2
+           .global store_runtime_reg
+store_runtime_reg:
+
+		  xor r0,r0,r0
+
+	      stwbrx r5,  r4, r3
+	      sync
+
+		  bclr   20,0
+
-- 
cgit v1.1