[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>

diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig
index 842200a..0bcbe66 100644 (file)
--- 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 a5b7c38..469f066 100644 (file)
--- 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 (file)
index 0000000..3644807
--- /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);
+}