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MIPS: ath79: add initial support for the Atheros PB44 reference board

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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: Luis R. Rodriguez <lrodriguez@atheros.com>
Cc: Cliff Holden <Cliff.Holden@Atheros.com>
Cc: Kathy Giori <Kathy.Giori@Atheros.com>
Patchwork: https://patchwork.linux-mips.org/patch/1950/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Gabor Juhos 2011-01-04 21:28:17 +01:00 committed by Ralf Baechle
parent 0aabf1a4d9
commit 0cde72284c
4 changed files with 73 additions and 0 deletions
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11
arch/mips/ath79/Kconfig
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@ -1,5 +1,16 @@
if ATH79
menu "Atheros AR71XX/AR724X/AR913X machine selection"
config ATH79_MACH_PB44
bool "Atheros PB44 reference board"
select SOC_AR71XX
help
Say 'Y' here if you want your kernel to support the
Atheros PB44 reference board.
endmenu
config SOC_AR71XX
def_bool n

5
arch/mips/ath79/Makefile
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@ -16,3 +16,8 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
# Devices
#
obj-y += dev-common.o
#
# Machines
#
obj-$(CONFIG_ATH79_MACH_PB44) += mach-pb44.o

56
arch/mips/ath79/mach-pb44.c Normal file
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@ -0,0 +1,56 @@
/*
* Atheros PB44 reference board support
*
* Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/i2c/pcf857x.h>
#include "machtypes.h"
#define PB44_GPIO_I2C_SCL 0
#define PB44_GPIO_I2C_SDA 1
#define PB44_GPIO_EXP_BASE 16
static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
.sda_pin = PB44_GPIO_I2C_SDA,
.scl_pin = PB44_GPIO_I2C_SCL,
};
static struct platform_device pb44_i2c_gpio_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &pb44_i2c_gpio_data,
}
};
static struct pcf857x_platform_data pb44_pcf857x_data = {
.gpio_base = PB44_GPIO_EXP_BASE,
};
static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
{
I2C_BOARD_INFO("pcf8575", 0x20),
.platform_data = &pb44_pcf857x_data,
},
};
static void __init pb44_init(void)
{
i2c_register_board_info(0, pb44_i2c_board_info,
ARRAY_SIZE(pb44_i2c_board_info));
platform_device_register(&pb44_i2c_gpio_device);
}
MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
pb44_init);

1
arch/mips/ath79/machtypes.h
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@ -16,6 +16,7 @@
enum ath79_mach_type {
ATH79_MACH_GENERIC = 0,
ATH79_MACH_PB44, /* Atheros PB44 reference board */
};
#endif /* _ATH79_MACHTYPE_H */