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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: Kyungmin Park <kyungmin.park@samsung.com> [kgene.kim@samsung.com: coding-style and minor comment fixes] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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5 changed files with 75 additions and 2 deletions
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@ -15,6 +15,16 @@ config CPU_S5PV310
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help
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Enable S5PV310 CPU support
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config S5PV310_SETUP_I2C1
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bool
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help
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Common setup code for i2c bus 1.
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config S5PV310_SETUP_I2C2
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bool
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help
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Common setup code for i2c bus 2.
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# machine support
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config MACH_SMDKV310
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@ -22,3 +22,8 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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# machine support
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obj-$(CONFIG_MACH_SMDKV310) += mach-smdkv310.o
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# device support
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obj-$(CONFIG_S5PV310_SETUP_I2C1) += setup-i2c1.o
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obj-$(CONFIG_S5PV310_SETUP_I2C2) += setup-i2c2.o
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@ -1,4 +1,5 @@
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/* linux/arch/arm/mach-s5pv210/setup-i2c0.c
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/*
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* linux/arch/arm/mach-s5pv310/setup-i2c0.c
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*
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* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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@ -14,7 +15,14 @@
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struct platform_device; /* don't need the contents */
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#include <linux/gpio.h>
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#include <plat/iic.h>
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#include <plat/gpio-cfg.h>
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void s3c_i2c0_cfg_gpio(struct platform_device *dev)
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{
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/* will be implemented later */
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s3c_gpio_cfgpin(S5PV310_GPD1(0), S3C_GPIO_SFN(2));
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s3c_gpio_setpull(S5PV310_GPD1(0), S3C_GPIO_PULL_UP);
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s3c_gpio_cfgpin(S5PV310_GPD1(1), S3C_GPIO_SFN(2));
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s3c_gpio_setpull(S5PV310_GPD1(1), S3C_GPIO_PULL_UP);
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}
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25
arch/arm/mach-s5pv310/setup-i2c1.c
Normal file
25
arch/arm/mach-s5pv310/setup-i2c1.c
Normal file
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@ -0,0 +1,25 @@
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/*
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* linux/arch/arm/mach-s5pv310/setup-i2c1.c
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*
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* Copyright (C) 2010 Samsung Electronics Co., Ltd.
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*
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* I2C1 GPIO configuration.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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struct platform_device; /* don't need the contents */
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#include <linux/gpio.h>
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#include <plat/iic.h>
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#include <plat/gpio-cfg.h>
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void s3c_i2c1_cfg_gpio(struct platform_device *dev)
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{
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s3c_gpio_cfgpin(S5PV310_GPD1(2), S3C_GPIO_SFN(2));
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s3c_gpio_setpull(S5PV310_GPD1(2), S3C_GPIO_PULL_UP);
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s3c_gpio_cfgpin(S5PV310_GPD1(3), S3C_GPIO_SFN(2));
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s3c_gpio_setpull(S5PV310_GPD1(3), S3C_GPIO_PULL_UP);
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}
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25
arch/arm/mach-s5pv310/setup-i2c2.c
Normal file
25
arch/arm/mach-s5pv310/setup-i2c2.c
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@ -0,0 +1,25 @@
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/*
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* linux/arch/arm/mach-s5pv310/setup-i2c2.c
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*
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* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
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*
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* I2C2 GPIO configuration.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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struct platform_device; /* don't need the contents */
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#include <linux/gpio.h>
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#include <plat/iic.h>
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#include <plat/gpio-cfg.h>
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void s3c_i2c2_cfg_gpio(struct platform_device *dev)
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{
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s3c_gpio_cfgpin(S5PV310_GPA0(6), S3C_GPIO_SFN(3));
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s3c_gpio_setpull(S5PV310_GPA0(6), S3C_GPIO_PULL_UP);
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s3c_gpio_cfgpin(S5PV310_GPA0(7), S3C_GPIO_SFN(3));
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s3c_gpio_setpull(S5PV310_GPA0(7), S3C_GPIO_PULL_UP);
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}
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