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[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>
hifive-unleashed-5.1
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
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@ -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

4
arch/arm/plat-s3c64xx/Makefile
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@ -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

31
arch/arm/plat-s3c64xx/setup-i2c0.c 100644
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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);
}