1 files changed, 62 insertions, 0 deletions

diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index f266d90b9efc..b752b586fc2f 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -23,6 +23,8 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
 
 #include <mach/hardware.h>
 #include <asm/pgtable.h>
@@ -34,6 +36,8 @@
 #include <asm/mach/map.h>
 #include <mach/syspld.h>
 
+#include <asm/hardware/clps7111.h>
+
 #include "common.h"
 
 /*
@@ -107,6 +111,64 @@ static void __init p720t_init_early(void)
         }
 }
 
+/*
+ * LED controled by CPLD
+ */
+#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
+static void p720t_led_set(struct led_classdev *cdev,
+                              enum led_brightness b)
+{
+        u8 reg = clps_readb(PDDR);
+
+        if (b != LED_OFF)
+                reg |= 0x1;
+        else
+                reg &= ~0x1;
+
+        clps_writeb(reg, PDDR);
+}
+
+static enum led_brightness p720t_led_get(struct led_classdev *cdev)
+{
+        u8 reg = clps_readb(PDDR);
+
+        return (reg & 0x1) ? LED_FULL : LED_OFF;
+}
+
+static int __init p720t_leds_init(void)
+{
+
+        struct led_classdev *cdev;
+        int ret;
+
+        if (!machine_is_p720t())
+                return -ENODEV;
+
+        cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
+        if (!cdev)
+                return -ENOMEM;
+
+        cdev->name = "p720t:0";
+        cdev->brightness_set = p720t_led_set;
+        cdev->brightness_get = p720t_led_get;
+        cdev->default_trigger = "heartbeat";
+
+        ret = led_classdev_register(NULL, cdev);
+        if (ret < 0) {
+                kfree(cdev);
+                return ret;
+        }
+
+        return 0;
+}
+
+/*
+ * Since we may have triggers on any subsystem, defer registration
+ * until after subsystem_init.
+ */
+fs_initcall(p720t_leds_init);
+#endif
+
 MACHINE_START(P720T, "ARM-Prospector720T")
         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
         .atag_offset    = 0x100,