The patch below adds GPIO support to the BCM947xx platform. It uses
the new gpio-led driver and a platform driver for the pin definitions.
Signed-off-by: Aurelien Jarno <aurelien@xxxxxxxxxxx>
--- a/arch/mips/bcm947xx/Makefile
+++ b/arch/mips/bcm947xx/Makefile
@@ -3,4 +3,4 @@
# under Linux.
#
-obj-y := irq.o prom.o serial.o setup.o time.o
+obj-y := irq.o prom.o serial.o setup.o time.o wgt634u.o
--- a/arch/mips/bcm947xx/wgt634u.c
+++ b/arch/mips/bcm947xx/wgt634u.c
@@ -0,0 +1,64 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@xxxxxxxxxxx>
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/leds.h>
+#include <linux/ssb/ssb.h>
+#include <asm/mach-bcm947xx/bcm947xx.h>
+
+/* GPIO definitions for the WGT634U */
+#define WGT634U_GPIO_LED 3
+#define WGT634U_GPIO_RESET 2
+#define WGT634U_GPIO_TP1 7
+#define WGT634U_GPIO_TP2 6
+#define WGT634U_GPIO_TP3 5
+#define WGT634U_GPIO_TP4 4
+#define WGT634U_GPIO_TP5 1
+
+static const struct gpio_led wgt634u_leds[] = {
+ {
+ .name = "power",
+ .gpio = WGT634U_GPIO_LED,
+ .active_low = 1,
+ .default_trigger = "heartbeat",
+ },
+};
+
+static const struct gpio_led_platform_data wgt634u_led_data = {
+ .num_leds = ARRAY_SIZE(wgt634u_leds),
+ .leds = (void *) wgt634u_leds,
+};
+
+static struct platform_device wgt634u_gpio_leds = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = (void *) &wgt634u_led_data,
+ }
+};
+
+static int __init wgt634u_init(void)
+{
+ /* There is no easy way to detect that we are running on a WGT634U
+ * machine. Use the MAC address as an heuristic. Netgear Inc. has
+ * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
+ */
+
+ u8 *et0mac = ssb_bcm947xx.sprom.r1.et0mac;
+
+ if (et0mac[0] == 0x00 &&
+ ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
+ (et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
+ return platform_device_register(&wgt634u_gpio_leds);
+ else
+ return -ENODEV;
+}
+
+module_init(wgt634u_init);
+
--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' aurel32@xxxxxxxxxx | aurelien@xxxxxxxxxxx
`- people.debian.org/~aurel32 | www.aurel32.net
