e176779af660dd1893fdd057cc2e301e0de1ce3f
[firefly-linux-kernel-4.4.55.git] / arch / mips / ath79 / mach-pb44.c
1 /*
2  *  Atheros PB44 reference board support
3  *
4  *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
5  *
6  *  This program is free software; you can redistribute it and/or modify it
7  *  under the terms of the GNU General Public License version 2 as published
8  *  by the Free Software Foundation.
9  */
10
11 #include <linux/init.h>
12 #include <linux/platform_device.h>
13 #include <linux/i2c.h>
14 #include <linux/i2c-gpio.h>
15 #include <linux/i2c/pcf857x.h>
16
17 #include "machtypes.h"
18 #include "dev-leds-gpio.h"
19
20 #define PB44_GPIO_I2C_SCL       0
21 #define PB44_GPIO_I2C_SDA       1
22
23 #define PB44_GPIO_EXP_BASE      16
24 #define PB44_GPIO_LED_JUMP1     (PB44_GPIO_EXP_BASE + 9)
25 #define PB44_GPIO_LED_JUMP2     (PB44_GPIO_EXP_BASE + 10)
26
27 static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
28         .sda_pin        = PB44_GPIO_I2C_SDA,
29         .scl_pin        = PB44_GPIO_I2C_SCL,
30 };
31
32 static struct platform_device pb44_i2c_gpio_device = {
33         .name           = "i2c-gpio",
34         .id             = 0,
35         .dev = {
36                 .platform_data  = &pb44_i2c_gpio_data,
37         }
38 };
39
40 static struct pcf857x_platform_data pb44_pcf857x_data = {
41         .gpio_base      = PB44_GPIO_EXP_BASE,
42 };
43
44 static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
45         {
46                 I2C_BOARD_INFO("pcf8575", 0x20),
47                 .platform_data  = &pb44_pcf857x_data,
48         },
49 };
50
51 static struct gpio_led pb44_leds_gpio[] __initdata = {
52         {
53                 .name           = "pb44:amber:jump1",
54                 .gpio           = PB44_GPIO_LED_JUMP1,
55                 .active_low     = 1,
56         }, {
57                 .name           = "pb44:green:jump2",
58                 .gpio           = PB44_GPIO_LED_JUMP2,
59                 .active_low     = 1,
60         },
61 };
62
63 static void __init pb44_init(void)
64 {
65         i2c_register_board_info(0, pb44_i2c_board_info,
66                                 ARRAY_SIZE(pb44_i2c_board_info));
67         platform_device_register(&pb44_i2c_gpio_device);
68
69         ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
70                                  pb44_leds_gpio);
71 }
72
73 MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
74              pb44_init);