From 1cb8e980c41e86760fa93de63f4e4cf643bef9d9 Mon Sep 17 00:00:00 2001
From: wdenk
Date: Thu, 6 Mar 2003 21:55:29 +0000
Subject: * Patches by David Müller, 31 Jan 2003:   - minimal setup for CardBus
 bridges   - add EEPROM read/write support in the CS8900 driver   - add
 support for the builtin I2C controller in the Samsung s3c24x0 chips   - add
 support for  MPL's VCMA9 (Samsung s3c2410 based) board

* Patch by Steven Scholz, 04 Feb 2003:
  add support for RTC DS1307

* Patch by Reinhard Meyer, 5 Feb 2003:
  fix PLPRCR/SCCR init sequence on 8xx to allow for
  changes of EBDF by software

* Patch by Vladimir Gurevich, 07 Feb 2003:
  "API-compatibility patch" for 4xx I2C driver
---
 cpu/ppc4xx/i2c.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'cpu/ppc4xx/i2c.c')

diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c
index 7d8db9bf437..4bf0bbd99cd 100644
--- a/cpu/ppc4xx/i2c.c
+++ b/cpu/ppc4xx/i2c.c
@@ -422,4 +422,23 @@ int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
         return (i2c_transfer( 0, chip<<1, &xaddr[4-alen], alen, buffer, len ) != 0);
 }
 
+/*-----------------------------------------------------------------------
+ * Read a register
+ */
+uchar i2c_reg_read(uchar i2c_addr, uchar reg)
+{
+	char buf;
+
+	i2c_read(i2c_addr, reg, 1, &buf, 1);
+
+	return(buf);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a register
+ */
+void i2c_reg_write(uchar i2c_addr, uchar reg, uchar val)
+{
+	i2c_write(i2c_addr, reg, 1, &val, 1);
+}
 #endif	/* CONFIG_HARD_I2C */
-- 
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