[PATCH 4/4] Enable I2C bus switching

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Syed Mohammed, Khasim

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Jan 5, 2010, 10:36:14 AM1/5/10

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From 3aa4b510a95b5313dc103c286eea44a6054b67d4 Mon Sep 17 00:00:00 2001
From: Syed Mohammed Khasim <kha...@ti.com>
Date: Tue, 5 Jan 2010 20:52:36 +0530
Subject: [PATCH] Enable I2C bus switching

OMAP3 supports Multiple I2C channels, this patch allows
us to use i2c dev <bus no> command to switch between busses.

Signed-off-by: Syed Mohammed Khasim <kha...@ti.com>
---
drivers/i2c/omap24xx_i2c.c | 5 +++++
include/configs/omap3_beagle.h | 4 ++++
2 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index ff18991..a9250be 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -435,3 +435,8 @@ int i2c_set_bus_num(unsigned int bus)

return 0;
}
+
+int i2c_get_bus_num(void)
+{
+ return ((int) current_bus);
+}
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index d1c9cd0..fa26b35 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -100,6 +100,10 @@
/* DDR - I use Micron DDR */
#define CONFIG_OMAP3_MICRON_DDR 1

+/* Enable Multi Bus support for I2C */
+#define CONFIG_I2C_MULTI_BUS 1
+#define CONFIG_SYS_I2C_NOPROBES {0x0,0x0}
+
/* commands to include */
#include <config_cmd_default.h>