Commit | Line | Data |
---|---|---|
94b0bd36 TP |
1 | /* |
2 | * arch/arm/mach-orion5x/board-d2net.c | |
3 | * | |
4 | * LaCie d2Network and Big Disk Network NAS setup | |
5 | * | |
6 | * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com> | |
7 | * | |
8 | * This file is licensed under the terms of the GNU General Public | |
9 | * License version 2. This program is licensed "as is" without any | |
10 | * warranty of any kind, whether express or implied. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/pci.h> | |
17 | #include <linux/irq.h> | |
18 | #include <linux/leds.h> | |
19 | #include <linux/gpio.h> | |
20 | #include <asm/mach-types.h> | |
21 | #include <asm/mach/arch.h> | |
22 | #include <asm/mach/pci.h> | |
94b0bd36 TP |
23 | #include <plat/orion-gpio.h> |
24 | #include "common.h" | |
c22c2c60 | 25 | #include "orion5x.h" |
94b0bd36 TP |
26 | |
27 | /***************************************************************************** | |
28 | * LaCie d2 Network Info | |
29 | ****************************************************************************/ | |
30 | ||
31 | /***************************************************************************** | |
32 | * GPIO LED's | |
33 | ****************************************************************************/ | |
34 | ||
35 | /* | |
36 | * The blue front LED is wired to the CPLD and can blink in relation with the | |
37 | * SATA activity. | |
38 | * | |
39 | * The following array detail the different LED registers and the combination | |
40 | * of their possible values: | |
41 | * | |
42 | * led_off | blink_ctrl | SATA active | LED state | |
43 | * | | | | |
44 | * 1 | x | x | off | |
45 | * 0 | 0 | 0 | off | |
46 | * 0 | 1 | 0 | blink (rate 300ms) | |
47 | * 0 | x | 1 | on | |
48 | * | |
49 | * Notes: The blue and the red front LED's can't be on at the same time. | |
50 | * Red LED have priority. | |
51 | */ | |
52 | ||
53 | #define D2NET_GPIO_RED_LED 6 | |
54 | #define D2NET_GPIO_BLUE_LED_BLINK_CTRL 16 | |
55 | #define D2NET_GPIO_BLUE_LED_OFF 23 | |
56 | ||
57 | static struct gpio_led d2net_leds[] = { | |
58 | { | |
59 | .name = "d2net:blue:sata", | |
60 | .default_trigger = "default-on", | |
61 | .gpio = D2NET_GPIO_BLUE_LED_OFF, | |
62 | .active_low = 1, | |
63 | }, | |
64 | { | |
65 | .name = "d2net:red:fail", | |
66 | .gpio = D2NET_GPIO_RED_LED, | |
67 | }, | |
68 | }; | |
69 | ||
70 | static struct gpio_led_platform_data d2net_led_data = { | |
71 | .num_leds = ARRAY_SIZE(d2net_leds), | |
72 | .leds = d2net_leds, | |
73 | }; | |
74 | ||
75 | static struct platform_device d2net_gpio_leds = { | |
76 | .name = "leds-gpio", | |
77 | .id = -1, | |
78 | .dev = { | |
79 | .platform_data = &d2net_led_data, | |
80 | }, | |
81 | }; | |
82 | ||
83 | static void __init d2net_gpio_leds_init(void) | |
84 | { | |
85 | int err; | |
86 | ||
87 | /* Configure register blink_ctrl to allow SATA activity LED blinking. */ | |
88 | err = gpio_request(D2NET_GPIO_BLUE_LED_BLINK_CTRL, "blue LED blink"); | |
89 | if (err == 0) { | |
90 | err = gpio_direction_output(D2NET_GPIO_BLUE_LED_BLINK_CTRL, 1); | |
91 | if (err) | |
92 | gpio_free(D2NET_GPIO_BLUE_LED_BLINK_CTRL); | |
93 | } | |
94 | if (err) | |
95 | pr_err("d2net: failed to configure blue LED blink GPIO\n"); | |
96 | ||
97 | platform_device_register(&d2net_gpio_leds); | |
98 | } | |
99 | ||
100 | /***************************************************************************** | |
101 | * General Setup | |
102 | ****************************************************************************/ | |
103 | ||
104 | void __init d2net_init(void) | |
105 | { | |
106 | d2net_gpio_leds_init(); | |
107 | ||
108 | pr_notice("d2net: Flash write are not yet supported.\n"); | |
109 | } |