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109 lines
3.0 KiB
109 lines
3.0 KiB
/* |
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* arch/arm/mach-orion5x/board-d2net.c |
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* |
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* LaCie d2Network and Big Disk Network NAS setup |
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* |
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* Copyright (C) 2009 Simon Guinot <[email protected]> |
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* |
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* This file is licensed under the terms of the GNU General Public |
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* License version 2. This program is licensed "as is" without any |
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* warranty of any kind, whether express or implied. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/pci.h> |
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#include <linux/irq.h> |
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#include <linux/leds.h> |
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#include <linux/gpio.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/pci.h> |
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#include <plat/orion-gpio.h> |
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#include "common.h" |
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#include "orion5x.h" |
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/***************************************************************************** |
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* LaCie d2 Network Info |
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****************************************************************************/ |
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/***************************************************************************** |
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* GPIO LED's |
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****************************************************************************/ |
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/* |
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* The blue front LED is wired to the CPLD and can blink in relation with the |
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* SATA activity. |
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* |
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* The following array detail the different LED registers and the combination |
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* of their possible values: |
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* |
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* led_off | blink_ctrl | SATA active | LED state |
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* | | | |
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* 1 | x | x | off |
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* 0 | 0 | 0 | off |
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* 0 | 1 | 0 | blink (rate 300ms) |
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* 0 | x | 1 | on |
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* |
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* Notes: The blue and the red front LED's can't be on at the same time. |
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* Red LED have priority. |
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*/ |
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#define D2NET_GPIO_RED_LED 6 |
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#define D2NET_GPIO_BLUE_LED_BLINK_CTRL 16 |
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#define D2NET_GPIO_BLUE_LED_OFF 23 |
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static struct gpio_led d2net_leds[] = { |
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{ |
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.name = "d2net:blue:sata", |
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.default_trigger = "default-on", |
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.gpio = D2NET_GPIO_BLUE_LED_OFF, |
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.active_low = 1, |
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}, |
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{ |
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.name = "d2net:red:fail", |
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.gpio = D2NET_GPIO_RED_LED, |
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}, |
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}; |
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static struct gpio_led_platform_data d2net_led_data = { |
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.num_leds = ARRAY_SIZE(d2net_leds), |
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.leds = d2net_leds, |
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}; |
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static struct platform_device d2net_gpio_leds = { |
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.name = "leds-gpio", |
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.id = -1, |
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.dev = { |
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.platform_data = &d2net_led_data, |
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}, |
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}; |
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static void __init d2net_gpio_leds_init(void) |
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{ |
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int err; |
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/* Configure register blink_ctrl to allow SATA activity LED blinking. */ |
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err = gpio_request(D2NET_GPIO_BLUE_LED_BLINK_CTRL, "blue LED blink"); |
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if (err == 0) { |
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err = gpio_direction_output(D2NET_GPIO_BLUE_LED_BLINK_CTRL, 1); |
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if (err) |
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gpio_free(D2NET_GPIO_BLUE_LED_BLINK_CTRL); |
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} |
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if (err) |
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pr_err("d2net: failed to configure blue LED blink GPIO\n"); |
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platform_device_register(&d2net_gpio_leds); |
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} |
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/***************************************************************************** |
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* General Setup |
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****************************************************************************/ |
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void __init d2net_init(void) |
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{ |
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d2net_gpio_leds_init(); |
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pr_notice("d2net: Flash write are not yet supported.\n"); |
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}
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