Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[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-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
36 static 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
41 static 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
49 static struct pcf857x_platform_data pb44_pcf857x_data = {
50         .gpio_base      = PB44_GPIO_EXP_BASE,
51 };
52
53 static 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
60 static 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
72 static 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
90 static 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
99 static struct ath79_spi_platform_data pb44_spi_data = {
100         .bus_num                = 0,
101         .num_chipselect         = 1,
102 };
103
104 static 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
121 MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board",
122              pb44_init);