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57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
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/*
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* Atheros PB44 reference board support
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*
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* Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/i2c-gpio.h>
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#include <linux/i2c/pcf857x.h>
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#include "machtypes.h"
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#define PB44_GPIO_I2C_SCL 0
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#define PB44_GPIO_I2C_SDA 1
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#define PB44_GPIO_EXP_BASE 16
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static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
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.sda_pin = PB44_GPIO_I2C_SDA,
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.scl_pin = PB44_GPIO_I2C_SCL,
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};
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static struct platform_device pb44_i2c_gpio_device = {
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.name = "i2c-gpio",
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.id = 0,
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.dev = {
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.platform_data = &pb44_i2c_gpio_data,
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}
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};
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static struct pcf857x_platform_data pb44_pcf857x_data = {
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.gpio_base = PB44_GPIO_EXP_BASE,
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};
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static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
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{
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I2C_BOARD_INFO("pcf8575", 0x20),
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.platform_data = &pb44_pcf857x_data,
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},
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};
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static void __init pb44_init(void)
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{
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i2c_register_board_info(0, pb44_i2c_board_info,
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ARRAY_SIZE(pb44_i2c_board_info));
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platform_device_register(&pb44_i2c_gpio_device);
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}
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MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
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pb44_init);
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