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