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| author | Aurelien Jarno <aurelien@aurel32.net> | 2007-09-25 15:43:07 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-10-12 00:46:07 +0200 |
| commit | 21c854dcbd7698bf723676a552968040e2813490 (patch) | |
| tree | 42add34cd3015837be4e3099abfa9db20e8a7957 | |
| parent | [MIPS] Add gpio support to the BCM47XX platform (diff) | |
| download | linux-21c854dcbd7698bf723676a552968040e2813490.tar.xz linux-21c854dcbd7698bf723676a552968040e2813490.zip | |
[MIPS] GPIO LED driver for the WGT634U machine
Add LED support to the WGT634U machine. It uses the new gpio-led
driver and a platform driver for the pin definitions.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/bcm47xx/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/bcm47xx/wgt634u.c | 64 |
2 files changed, 65 insertions, 1 deletions
diff --git a/arch/mips/bcm47xx/Makefile b/arch/mips/bcm47xx/Makefile index 0afe09703e3f..35294b12d638 100644 --- a/arch/mips/bcm47xx/Makefile +++ b/arch/mips/bcm47xx/Makefile @@ -3,4 +3,4 @@ # under Linux. # -obj-y := gpio.o irq.o prom.o serial.o setup.o time.o +obj-y := gpio.o irq.o prom.o serial.o setup.o time.o wgt634u.o diff --git a/arch/mips/bcm47xx/wgt634u.c b/arch/mips/bcm47xx/wgt634u.c new file mode 100644 index 000000000000..5a017eaee712 --- /dev/null +++ b/arch/mips/bcm47xx/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@aurel32.net> + */ + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/leds.h> +#include <linux/ssb/ssb.h> +#include <asm/mach-bcm47xx/bcm47xx.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 struct gpio_led wgt634u_leds[] = { + { + .name = "power", + .gpio = WGT634U_GPIO_LED, + .active_low = 1, + .default_trigger = "heartbeat", + }, +}; + +static struct gpio_led_platform_data wgt634u_led_data = { + .num_leds = ARRAY_SIZE(wgt634u_leds), + .leds = wgt634u_leds, +}; + +static struct platform_device wgt634u_gpio_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &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_bcm47xx.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); + |