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Diffstat (limited to 'arch/arm/mach-orion5x/board-d2net.c')
-rw-r--r--arch/arm/mach-orion5x/board-d2net.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/arm/mach-orion5x/board-d2net.c b/arch/arm/mach-orion5x/board-d2net.c
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+++ b/arch/arm/mach-orion5x/board-d2net.c
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+/*
+ * 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 <mach/orion5x.h>
+#include <plat/orion-gpio.h>
+#include "common.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");
+}