From: wdenk <wdenk>
Date: Mon, 1 Apr 2002 17:47:25 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: LABEL_2006_03_12_0025~1148
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=e881953f7dadd9a643318a61c1f264a9407c3c2c;p=oweals%2Fu-boot.git

Initial revision
---

diff --git a/cpu/mpc824x/drivers/i2c/i2c2.S b/cpu/mpc824x/drivers/i2c/i2c2.S
new file mode 100644
index 0000000000..5cc7c98764
--- /dev/null
+++ b/cpu/mpc824x/drivers/i2c/i2c2.S
@@ -0,0 +1,54 @@
+/**************************************
+ *
+ * copyright @ Motorola, 1999
+ *
+ **************************************/
+
+#include <config.h>
+#ifdef CONFIG_HARD_I2C
+#include <ppc_asm.tmpl>
+#include <asm/mmu.h>
+/**********************************************************
+ * 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
+*
+*	      lwbrx	r3,r4,r5
+*/
+	      lwbrx r3,r4,r3
+	      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:
+
+	      stwbrx r5,  r4, r3
+	      sync
+
+              bclr   20,0
+
+
+
+#endif /* CONFIG_HARD_I2C */