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

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Add the necessary device initialisation information
for I2C device 0.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2008-10-31 16:14:51 +00:00
parent 26da1bfc56
commit 55132b8b46
3 changed files with 46 additions and 0 deletions
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11
arch/arm/plat-s3c64xx/Kconfig
View file

@ -37,4 +37,15 @@ config CPU_S3C6400_CLOCK
Common clock support code for the S3C6400 that is shared Common clock support code for the S3C6400 that is shared
by other CPUs in the series, such as the S3C6410. 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 endif

4
arch/arm/plat-s3c64xx/Makefile
View file

@ -23,3 +23,7 @@ obj-y += gpiolib.o
obj-$(CONFIG_CPU_S3C6400_INIT) += s3c6400-init.o obj-$(CONFIG_CPU_S3C6400_INIT) += s3c6400-init.o
obj-$(CONFIG_CPU_S3C6400_CLOCK) += s3c6400-clock.o obj-$(CONFIG_CPU_S3C6400_CLOCK) += s3c6400-clock.o
# Device setup
obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o

31
arch/arm/plat-s3c64xx/setup-i2c0.c Normal file
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@ -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);
}