[ARM] S3C64XX: Add i2c device setup for I2C device 0

Add the necessary device initialisation information
for I2C device 0.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>

3 files changed, 46 insertions, 0 deletions

diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig
index 842200abeb36..0bcbe663e2f0 100644
--- a/arch/arm/plat-s3c64xx/Kconfig
+++ b/arch/arm/plat-s3c64xx/Kconfig
@@ -37,4 +37,15 @@ config CPU_S3C6400_CLOCK
 	  Common clock support code for the S3C6400 that is shared
 	  by other CPUs in the series, such as the S3C6410.
 
+# platform specific device setup
+
+config S3C64XX_SETUP_I2C0
+	bool
+	default y
+	help
+	  Common setup code for i2c bus 0.
+
+	  Note, currently since i2c0 is always compiled, this setup helper
+	  is always compiled with it.
+
 endif
diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile
index a5b7c388351e..469f066daab7 100644
--- a/arch/arm/plat-s3c64xx/Makefile
+++ b/arch/arm/plat-s3c64xx/Makefile
@@ -23,3 +23,7 @@ obj-y				+= gpiolib.o
 
 obj-$(CONFIG_CPU_S3C6400_INIT)	+= s3c6400-init.o
 obj-$(CONFIG_CPU_S3C6400_CLOCK)	+= s3c6400-clock.o
+
+# Device setup
+
+obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o
diff --git a/arch/arm/plat-s3c64xx/setup-i2c0.c b/arch/arm/plat-s3c64xx/setup-i2c0.c
new file mode 100644
index 000000000000..364480763728
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/setup-i2c0.c
@@ -0,0 +1,31 @@
+/* linux/arch/arm/plat-s3c64xx/setup-i2c0.c
+ *
+ * Copyright 2008 Openmoko, Inc.
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * Base S3C64XX I2C bus 0 gpio configuration
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+struct platform_device; /* don't need the contents */
+
+#include <mach/gpio.h>
+#include <plat/iic.h>
+#include <plat/gpio-bank-b.h>
+#include <plat/gpio-cfg.h>
+
+void s3c_i2c0_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(S3C64XX_GPB(5), S3C64XX_GPB5_I2C_SCL0);
+	s3c_gpio_cfgpin(S3C64XX_GPB(6), S3C64XX_GPB6_I2C_SDA0);
+	s3c_gpio_setpull(S3C64XX_GPB(5), S3C_GPIO_PULL_UP);
+	s3c_gpio_setpull(S3C64XX_GPB(6), S3C_GPIO_PULL_UP);
+}