[U-Boot-Users] PATCH: i2c_reg functions for at91rm9200

7 Apr 2005

Hi there,
in order to use an I2C RTC with the at91rm9200 we need i2c_reg_write() and 
i2c_reg_write() functions. Please consider the patch attached.
* Patch by Steven Scholz, 07 Apr 2005:
   - add i2c_reg_write() and i2c_reg_write() for at91rm9200 I2C
-- 
Steven

Index: u-boot/cpu/arm920t/at91rm9200/i2c.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/cpu/arm920t/at91rm9200/i2c.c,v
retrieving revision 1.1
diff -u -r1.1 i2c.c

--- u-boot/cpu/arm920t/at91rm9200/i2c.c	6 Apr 2005 13:52:34 -0000	1.1
+++ u-boot/cpu/arm920t/at91rm9200/i2c.c	7 Apr 2005 08:03:34 -0000
@@ -189,4 +189,19 @@
    debug ("Found AT91 i2c\n");
    return;
 }
+
+uchar i2c_reg_read(uchar i2c_addr, uchar reg)
+{
+	char buf;
+
+	i2c_read(i2c_addr, reg, 1, &buf, 1);
+
+	return(buf);
+}
+
+void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
+{
+	i2c_write(i2c_addr, reg, 1, &val, 1);
+}
+
 #endif /* CONFIG_HARD_I2C */

    

Steven Scholz

Wolfgang Denk

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