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-gpio-buttons.h"
19#include "dev-leds-gpio.h"
20#include "dev-spi.h"
21#include "dev-usb.h"
22#include "pci.h"
23
24#define PB44_GPIO_I2C_SCL	0
25#define PB44_GPIO_I2C_SDA	1
26
27#define PB44_GPIO_EXP_BASE	16
28#define PB44_GPIO_SW_RESET	(PB44_GPIO_EXP_BASE + 6)
29#define PB44_GPIO_SW_JUMP	(PB44_GPIO_EXP_BASE + 8)
30#define PB44_GPIO_LED_JUMP1	(PB44_GPIO_EXP_BASE + 9)
31#define PB44_GPIO_LED_JUMP2	(PB44_GPIO_EXP_BASE + 10)
32
33#define PB44_KEYS_POLL_INTERVAL		20	/* msecs */
34#define PB44_KEYS_DEBOUNCE_INTERVAL	(3 * PB44_KEYS_POLL_INTERVAL)
35
36static struct i2c_gpio_platform_data pb44_i2c_gpio_data = {
37	.sda_pin	= PB44_GPIO_I2C_SDA,
38	.scl_pin	= PB44_GPIO_I2C_SCL,
39};
40
41static struct platform_device pb44_i2c_gpio_device = {
42	.name		= "i2c-gpio",
43	.id		= 0,
44	.dev = {
45		.platform_data	= &pb44_i2c_gpio_data,
46	}
47};
48
49static struct pcf857x_platform_data pb44_pcf857x_data = {
50	.gpio_base	= PB44_GPIO_EXP_BASE,
51};
52
53static struct i2c_board_info pb44_i2c_board_info[] __initdata = {
54	{
55		I2C_BOARD_INFO("pcf8575", 0x20),
56		.platform_data	= &pb44_pcf857x_data,
57	},
58};
59
60static struct gpio_led pb44_leds_gpio[] __initdata = {
61	{
62		.name		= "pb44:amber:jump1",
63		.gpio		= PB44_GPIO_LED_JUMP1,
64		.active_low	= 1,
65	}, {
66		.name		= "pb44:green:jump2",
67		.gpio		= PB44_GPIO_LED_JUMP2,
68		.active_low	= 1,
69	},
70};
71
72static struct gpio_keys_button pb44_gpio_keys[] __initdata = {
73	{
74		.desc		= "soft_reset",
75		.type		= EV_KEY,
76		.code		= KEY_RESTART,
77		.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
78		.gpio		= PB44_GPIO_SW_RESET,
79		.active_low	= 1,
80	} , {
81		.desc		= "jumpstart",
82		.type		= EV_KEY,
83		.code		= KEY_WPS_BUTTON,
84		.debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL,
85		.gpio		= PB44_GPIO_SW_JUMP,
86		.active_low	= 1,
87	}
88};
89
90static struct spi_board_info pb44_spi_info[] = {
91	{
92		.bus_num	= 0,
93		.chip_select	= 0,
94		.max_speed_hz	= 25000000,
95		.modalias	= "m25p64",
96	},
97};
98
99static struct ath79_spi_platform_data pb44_spi_data = {
100	.bus_num		= 0,
101	.num_chipselect		= 1,
102};
103
104static void __init pb44_init(void)
105{
106	i2c_register_board_info(0, pb44_i2c_board_info,
107				ARRAY_SIZE(pb44_i2c_board_info));
108	platform_device_register(&pb44_i2c_gpio_device);
109
110	ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio),
111				 pb44_leds_gpio);
112	ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL,
113					ARRAY_SIZE(pb44_gpio_keys),
114					pb44_gpio_keys);
115	ath79_register_spi(&pb44_spi_data, pb44_spi_info,
116			   ARRAY_SIZE(pb44_spi_info));
117	ath79_register_usb();
118	ath79_register_pci();
119}
120
121MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
122	     pb44_init);
123