diff options
Diffstat (limited to 'arch/mips/ath79/mach-pb44.c')
-rw-r--r-- | arch/mips/ath79/mach-pb44.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c new file mode 100644 index 000000000000..ec7b7a135d53 --- /dev/null +++ b/arch/mips/ath79/mach-pb44.c | |||
@@ -0,0 +1,118 @@ | |||
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 | |||
22 | #define PB44_GPIO_I2C_SCL 0 | ||
23 | #define PB44_GPIO_I2C_SDA 1 | ||
24 | |||
25 | #define PB44_GPIO_EXP_BASE 16 | ||
26 | #define PB44_GPIO_SW_RESET (PB44_GPIO_EXP_BASE + 6) | ||
27 | #define PB44_GPIO_SW_JUMP (PB44_GPIO_EXP_BASE + 8) | ||
28 | #define PB44_GPIO_LED_JUMP1 (PB44_GPIO_EXP_BASE + 9) | ||
29 | #define PB44_GPIO_LED_JUMP2 (PB44_GPIO_EXP_BASE + 10) | ||
30 | |||
31 | #define PB44_KEYS_POLL_INTERVAL 20 /* msecs */ | ||
32 | #define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL) | ||
33 | |||
34 | static struct i2c_gpio_platform_data pb44_i2c_gpio_data = { | ||
35 | .sda_pin = PB44_GPIO_I2C_SDA, | ||
36 | .scl_pin = PB44_GPIO_I2C_SCL, | ||
37 | }; | ||
38 | |||
39 | static struct platform_device pb44_i2c_gpio_device = { | ||
40 | .name = "i2c-gpio", | ||
41 | .id = 0, | ||
42 | .dev = { | ||
43 | .platform_data = &pb44_i2c_gpio_data, | ||
44 | } | ||
45 | }; | ||
46 | |||
47 | static struct pcf857x_platform_data pb44_pcf857x_data = { | ||
48 | .gpio_base = PB44_GPIO_EXP_BASE, | ||
49 | }; | ||
50 | |||
51 | static struct i2c_board_info pb44_i2c_board_info[] __initdata = { | ||
52 | { | ||
53 | I2C_BOARD_INFO("pcf8575", 0x20), | ||
54 | .platform_data = &pb44_pcf857x_data, | ||
55 | }, | ||
56 | }; | ||
57 | |||
58 | static struct gpio_led pb44_leds_gpio[] __initdata = { | ||
59 | { | ||
60 | .name = "pb44:amber:jump1", | ||
61 | .gpio = PB44_GPIO_LED_JUMP1, | ||
62 | .active_low = 1, | ||
63 | }, { | ||
64 | .name = "pb44:green:jump2", | ||
65 | .gpio = PB44_GPIO_LED_JUMP2, | ||
66 | .active_low = 1, | ||
67 | }, | ||
68 | }; | ||
69 | |||
70 | static struct gpio_keys_button pb44_gpio_keys[] __initdata = { | ||
71 | { | ||
72 | .desc = "soft_reset", | ||
73 | .type = EV_KEY, | ||
74 | .code = KEY_RESTART, | ||
75 | .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL, | ||
76 | .gpio = PB44_GPIO_SW_RESET, | ||
77 | .active_low = 1, | ||
78 | } , { | ||
79 | .desc = "jumpstart", | ||
80 | .type = EV_KEY, | ||
81 | .code = KEY_WPS_BUTTON, | ||
82 | .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL, | ||
83 | .gpio = PB44_GPIO_SW_JUMP, | ||
84 | .active_low = 1, | ||
85 | } | ||
86 | }; | ||
87 | |||
88 | static struct spi_board_info pb44_spi_info[] = { | ||
89 | { | ||
90 | .bus_num = 0, | ||
91 | .chip_select = 0, | ||
92 | .max_speed_hz = 25000000, | ||
93 | .modalias = "m25p64", | ||
94 | }, | ||
95 | }; | ||
96 | |||
97 | static struct ath79_spi_platform_data pb44_spi_data = { | ||
98 | .bus_num = 0, | ||
99 | .num_chipselect = 1, | ||
100 | }; | ||
101 | |||
102 | static void __init pb44_init(void) | ||
103 | { | ||
104 | i2c_register_board_info(0, pb44_i2c_board_info, | ||
105 | ARRAY_SIZE(pb44_i2c_board_info)); | ||
106 | platform_device_register(&pb44_i2c_gpio_device); | ||
107 | |||
108 | ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio), | ||
109 | pb44_leds_gpio); | ||
110 | ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL, | ||
111 | ARRAY_SIZE(pb44_gpio_keys), | ||
112 | pb44_gpio_keys); | ||
113 | ath79_register_spi(&pb44_spi_data, pb44_spi_info, | ||
114 | ARRAY_SIZE(pb44_spi_info)); | ||
115 | } | ||
116 | |||
117 | MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board", | ||
118 | pb44_init); | ||