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Commit 793177b5 authored by Kyungmin Park's avatar Kyungmin Park Committed by Kukjin Kim
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ARM: S5PV310: Add I2C channel 0, 1 and 2 support 



This patch adds configuration of proper mux pins for support
I2C channel 0, 1, and 2 on S5PV310/S5PC210.

Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
[kgene.kim@samsung.com: coding-style and minor comment fixes]
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent acfdc56d

arch/arm/mach-s5pv310/Kconfig

+10 −0
Original line number Original line Diff line number Diff line
@@ -15,6 +15,16 @@ config CPU_S5PV310 
	help

	help

	  Enable S5PV310 CPU support

	  Enable S5PV310 CPU support





config S5PV310_SETUP_I2C1

	bool

	help

	  Common setup code for i2c bus 1.



config S5PV310_SETUP_I2C2

	bool

	help

	  Common setup code for i2c bus 2.



# machine support

# machine support





config MACH_SMDKV310

config MACH_SMDKV310

arch/arm/mach-s5pv310/Makefile

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Original line number Original line Diff line number Diff line
@@ -22,3 +22,8 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o 
# machine support

# machine support





obj-$(CONFIG_MACH_SMDKV310)	+= mach-smdkv310.o

obj-$(CONFIG_MACH_SMDKV310)	+= mach-smdkv310.o



# device support



obj-$(CONFIG_S5PV310_SETUP_I2C1)	+= setup-i2c1.o

obj-$(CONFIG_S5PV310_SETUP_I2C2)	+= setup-i2c2.o

arch/arm/mach-s5pv310/setup-i2c0.c

+10 −2
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/* linux/arch/arm/mach-s5pv210/setup-i2c0.c

/*

 * linux/arch/arm/mach-s5pv310/setup-i2c0.c

 *

 *

 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.

 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.

 *		http://www.samsung.com/

 *		http://www.samsung.com/
@@ -14,7 +15,14 @@ 




struct platform_device; /* don't need the contents */

struct platform_device; /* don't need the contents */





#include <linux/gpio.h>

#include <plat/iic.h>

#include <plat/gpio-cfg.h>



void s3c_i2c0_cfg_gpio(struct platform_device *dev)

void s3c_i2c0_cfg_gpio(struct platform_device *dev)

{

{

/* will be implemented later */

	s3c_gpio_cfgpin(S5PV310_GPD1(0), S3C_GPIO_SFN(2));

	s3c_gpio_setpull(S5PV310_GPD1(0), S3C_GPIO_PULL_UP);

	s3c_gpio_cfgpin(S5PV310_GPD1(1), S3C_GPIO_SFN(2));

	s3c_gpio_setpull(S5PV310_GPD1(1), S3C_GPIO_PULL_UP);

}
 
}

arch/arm/mach-s5pv310/setup-i2c1.c

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+25 −0
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/*

 * linux/arch/arm/mach-s5pv310/setup-i2c1.c

 *

 * Copyright (C) 2010 Samsung Electronics Co., Ltd.

 *

 * I2C1 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.

*/



struct platform_device; /* don't need the contents */



#include <linux/gpio.h>

#include <plat/iic.h>

#include <plat/gpio-cfg.h>



void s3c_i2c1_cfg_gpio(struct platform_device *dev)

{

	s3c_gpio_cfgpin(S5PV310_GPD1(2), S3C_GPIO_SFN(2));

	s3c_gpio_setpull(S5PV310_GPD1(2), S3C_GPIO_PULL_UP);

	s3c_gpio_cfgpin(S5PV310_GPD1(3), S3C_GPIO_SFN(2));

	s3c_gpio_setpull(S5PV310_GPD1(3), S3C_GPIO_PULL_UP);

}

arch/arm/mach-s5pv310/setup-i2c2.c

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/*

 * linux/arch/arm/mach-s5pv310/setup-i2c2.c

 *

 * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.

 *

 * I2C2 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.

*/



struct platform_device; /* don't need the contents */



#include <linux/gpio.h>

#include <plat/iic.h>

#include <plat/gpio-cfg.h>



void s3c_i2c2_cfg_gpio(struct platform_device *dev)

{

	s3c_gpio_cfgpin(S5PV310_GPA0(6), S3C_GPIO_SFN(3));

	s3c_gpio_setpull(S5PV310_GPA0(6), S3C_GPIO_PULL_UP);

	s3c_gpio_cfgpin(S5PV310_GPA0(7), S3C_GPIO_SFN(3));

	s3c_gpio_setpull(S5PV310_GPA0(7), S3C_GPIO_PULL_UP);

}