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authorRod Whitby <rod@whitby.id.au>2006-06-22 22:21:01 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-22 22:21:01 +0100
commitdf6934b33c43a3ad517244935fe9c19715d9dc15 (patch)
tree6a8a6c66182e98466472aa4ab195e39ead6b1bb2
parentf606a6ff222dc7dceeb4d0e214ce4f55d9c6b0e6 (diff)
[ARM] 3595/1: ixp4xx/nas100d: Board support for new LED subsystem
Patch from Rod Whitby This patch implements NEW_LEDS support for the IOMega NAS100d. The NAS100d has three LED indicators, which are the only form of output for an unmodified device - there is no keyboard or display on an NAS100d. For an NAS100d which has been modified to bring out the serial port console, it is important to register that device first separately, to enable debugging of other device support. Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/mach-ixp4xx/nas100d-setup.c41
1 files changed, 40 insertions, 1 deletions
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index a3b4c6ac570..9a31444d921 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -37,6 +38,36 @@ static struct platform_device nas100d_flash = {
.resource = &nas100d_flash_resource,
};
+#ifdef CONFIG_LEDS_IXP4XX
+static struct resource nas100d_led_resources[] = {
+ {
+ .name = "wlan", /* green led */
+ .start = 0,
+ .end = 0,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+ {
+ .name = "ready", /* blue power led (off is flashing!) */
+ .start = 15,
+ .end = 15,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+ {
+ .name = "disk", /* yellow led */
+ .start = 3,
+ .end = 3,
+ .flags = IXP4XX_GPIO_LOW,
+ },
+};
+
+static struct platform_device nas100d_leds = {
+ .name = "IXP4XX-GPIO-LED",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(nas100d_led_resources),
+ .resource = nas100d_led_resources,
+};
+#endif
+
static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
.sda_pin = NAS100D_SDA_PIN,
.scl_pin = NAS100D_SCL_PIN,
@@ -95,7 +126,9 @@ static struct platform_device nas100d_uart = {
static struct platform_device *nas100d_devices[] __initdata = {
&nas100d_i2c_controller,
&nas100d_flash,
- &nas100d_uart,
+#ifdef CONFIG_LEDS_IXP4XX
+ &nas100d_leds,
+#endif
};
static void nas100d_power_off(void)
@@ -122,6 +155,12 @@ static void __init nas100d_init(void)
pm_power_off = nas100d_power_off;
+ /* This is only useful on a modified machine, but it is valuable
+ * to have it first in order to see debug messages, and so that
+ * it does *not* get removed if platform_add_devices fails!
+ */
+ (void)platform_device_register(&nas100d_uart);
+
platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
}