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authorAndrew Lunn <andrew@lunn.ch>2014-05-26 23:29:48 +0400
committerJason Cooper <jason@lakedaemon.net>2014-06-21 03:47:27 +0400
commit55fc83023212f940927b9a44e31ad93d7e67d27d (patch)
treea5cf59a586cf5d520c099b078bf07974af01e064 /arch/arm/mach-mvebu/netxbig.c
parentadb1d99384c7480886153a97d2ea22e9c0d2e053 (diff)
downloadlinux-55fc83023212f940927b9a44e31ad93d7e67d27d.tar.xz
ARM: Kirkwood: Add setup file for netxbig LEDs
There is currently no DT binding for the CPLD which controls the LEDs on the Net 2Big and Net 5Big. So use a platform device. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Link: https://lkml.kernel.org/r/1401132591-26305-2-git-send-email-andrew@lunn.ch Tested-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-mvebu/netxbig.c')
-rw-r--r--arch/arm/mach-mvebu/netxbig.c191
1 files changed, 191 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/netxbig.c b/arch/arm/mach-mvebu/netxbig.c
new file mode 100644
index 000000000000..94b11b6585a4
--- /dev/null
+++ b/arch/arm/mach-mvebu/netxbig.c
@@ -0,0 +1,191 @@
+/*
+ * arch/arm/mach-mvbu/board-netxbig.c
+ *
+ * LaCie 2Big and 5Big Network v2 board setup
+ *
+ * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/leds-kirkwood-netxbig.h>
+#include "common.h"
+
+/*****************************************************************************
+ * GPIO extension LEDs
+ ****************************************************************************/
+
+/*
+ * The LEDs are controlled by a CPLD and can be configured through a GPIO
+ * extension bus:
+ *
+ * - address register : bit [0-2] -> GPIO [47-49]
+ * - data register : bit [0-2] -> GPIO [44-46]
+ * - enable register : GPIO 29
+ */
+
+static int netxbig_v2_gpio_ext_addr[] = { 47, 48, 49 };
+static int netxbig_v2_gpio_ext_data[] = { 44, 45, 46 };
+
+static struct netxbig_gpio_ext netxbig_v2_gpio_ext = {
+ .addr = netxbig_v2_gpio_ext_addr,
+ .num_addr = ARRAY_SIZE(netxbig_v2_gpio_ext_addr),
+ .data = netxbig_v2_gpio_ext_data,
+ .num_data = ARRAY_SIZE(netxbig_v2_gpio_ext_data),
+ .enable = 29,
+};
+
+/*
+ * Address register selection:
+ *
+ * addr | register
+ * ----------------------------
+ * 0 | front LED
+ * 1 | front LED brightness
+ * 2 | SATA LED brightness
+ * 3 | SATA0 LED
+ * 4 | SATA1 LED
+ * 5 | SATA2 LED
+ * 6 | SATA3 LED
+ * 7 | SATA4 LED
+ *
+ * Data register configuration:
+ *
+ * data | LED brightness
+ * -------------------------------------------------
+ * 0 | min (off)
+ * - | -
+ * 7 | max
+ *
+ * data | front LED mode
+ * -------------------------------------------------
+ * 0 | fix off
+ * 1 | fix blue on
+ * 2 | fix red on
+ * 3 | blink blue on=1 sec and blue off=1 sec
+ * 4 | blink red on=1 sec and red off=1 sec
+ * 5 | blink blue on=2.5 sec and red on=0.5 sec
+ * 6 | blink blue on=1 sec and red on=1 sec
+ * 7 | blink blue on=0.5 sec and blue off=2.5 sec
+ *
+ * data | SATA LED mode
+ * -------------------------------------------------
+ * 0 | fix off
+ * 1 | SATA activity blink
+ * 2 | fix red on
+ * 3 | blink blue on=1 sec and blue off=1 sec
+ * 4 | blink red on=1 sec and red off=1 sec
+ * 5 | blink blue on=2.5 sec and red on=0.5 sec
+ * 6 | blink blue on=1 sec and red on=1 sec
+ * 7 | fix blue on
+ */
+
+static int netxbig_v2_red_mled[NETXBIG_LED_MODE_NUM] = {
+ [NETXBIG_LED_OFF] = 0,
+ [NETXBIG_LED_ON] = 2,
+ [NETXBIG_LED_SATA] = NETXBIG_LED_INVALID_MODE,
+ [NETXBIG_LED_TIMER1] = 4,
+ [NETXBIG_LED_TIMER2] = NETXBIG_LED_INVALID_MODE,
+};
+
+static int netxbig_v2_blue_pwr_mled[NETXBIG_LED_MODE_NUM] = {
+ [NETXBIG_LED_OFF] = 0,
+ [NETXBIG_LED_ON] = 1,
+ [NETXBIG_LED_SATA] = NETXBIG_LED_INVALID_MODE,
+ [NETXBIG_LED_TIMER1] = 3,
+ [NETXBIG_LED_TIMER2] = 7,
+};
+
+static int netxbig_v2_blue_sata_mled[NETXBIG_LED_MODE_NUM] = {
+ [NETXBIG_LED_OFF] = 0,
+ [NETXBIG_LED_ON] = 7,
+ [NETXBIG_LED_SATA] = 1,
+ [NETXBIG_LED_TIMER1] = 3,
+ [NETXBIG_LED_TIMER2] = NETXBIG_LED_INVALID_MODE,
+};
+
+static struct netxbig_led_timer netxbig_v2_led_timer[] = {
+ [0] = {
+ .delay_on = 500,
+ .delay_off = 500,
+ .mode = NETXBIG_LED_TIMER1,
+ },
+ [1] = {
+ .delay_on = 500,
+ .delay_off = 1000,
+ .mode = NETXBIG_LED_TIMER2,
+ },
+};
+
+#define NETXBIG_LED(_name, maddr, mval, baddr) \
+ { .name = _name, \
+ .mode_addr = maddr, \
+ .mode_val = mval, \
+ .bright_addr = baddr }
+
+static struct netxbig_led net2big_v2_leds_ctrl[] = {
+ NETXBIG_LED("net2big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled, 1),
+ NETXBIG_LED("net2big-v2:red:power", 0, netxbig_v2_red_mled, 1),
+ NETXBIG_LED("net2big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net2big-v2:red:sata0", 3, netxbig_v2_red_mled, 2),
+ NETXBIG_LED("net2big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net2big-v2:red:sata1", 4, netxbig_v2_red_mled, 2),
+};
+
+static struct netxbig_led_platform_data net2big_v2_leds_data = {
+ .gpio_ext = &netxbig_v2_gpio_ext,
+ .timer = netxbig_v2_led_timer,
+ .num_timer = ARRAY_SIZE(netxbig_v2_led_timer),
+ .leds = net2big_v2_leds_ctrl,
+ .num_leds = ARRAY_SIZE(net2big_v2_leds_ctrl),
+};
+
+static struct netxbig_led net5big_v2_leds_ctrl[] = {
+ NETXBIG_LED("net5big-v2:blue:power", 0, netxbig_v2_blue_pwr_mled, 1),
+ NETXBIG_LED("net5big-v2:red:power", 0, netxbig_v2_red_mled, 1),
+ NETXBIG_LED("net5big-v2:blue:sata0", 3, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net5big-v2:red:sata0", 3, netxbig_v2_red_mled, 2),
+ NETXBIG_LED("net5big-v2:blue:sata1", 4, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net5big-v2:red:sata1", 4, netxbig_v2_red_mled, 2),
+ NETXBIG_LED("net5big-v2:blue:sata2", 5, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net5big-v2:red:sata2", 5, netxbig_v2_red_mled, 2),
+ NETXBIG_LED("net5big-v2:blue:sata3", 6, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net5big-v2:red:sata3", 6, netxbig_v2_red_mled, 2),
+ NETXBIG_LED("net5big-v2:blue:sata4", 7, netxbig_v2_blue_sata_mled, 2),
+ NETXBIG_LED("net5big-v2:red:sata4", 7, netxbig_v2_red_mled, 2),
+};
+
+static struct netxbig_led_platform_data net5big_v2_leds_data = {
+ .gpio_ext = &netxbig_v2_gpio_ext,
+ .timer = netxbig_v2_led_timer,
+ .num_timer = ARRAY_SIZE(netxbig_v2_led_timer),
+ .leds = net5big_v2_leds_ctrl,
+ .num_leds = ARRAY_SIZE(net5big_v2_leds_ctrl),
+};
+
+static struct platform_device netxbig_v2_leds = {
+ .name = "leds-netxbig",
+ .id = -1,
+ .dev = {
+ .platform_data = &net2big_v2_leds_data,
+ },
+};
+
+void __init netxbig_init(void)
+{
+
+ if (of_machine_is_compatible("lacie,net5big_v2"))
+ netxbig_v2_leds.dev.platform_data = &net5big_v2_leds_data;
+ platform_device_register(&netxbig_v2_leds);
+}