microblaze: GPIO reset support

Signed-off-by: Michal Simek <monstr@monstr.eu>

2 files changed, 30 insertions, 0 deletions

diff --git a/arch/microblaze/platform/generic/system.dts b/arch/microblaze/platform/generic/system.dts
index 29993f62b30..e00da8971c3 100644
--- a/arch/microblaze/platform/generic/system.dts
+++ b/arch/microblaze/platform/generic/system.dts
@@ -32,6 +32,7 @@
         #address-cells = <1>;
         #size-cells = <1>;
         compatible = "xlnx,microblaze";
+        hard-reset-gpios = <&LEDs_8Bit 2 1>;
         model = "testing";
         DDR2_SDRAM: memory@90000000 {
                 device_type = "memory";
@@ -261,6 +262,33 @@
                         xlnx,is-dual = <0x0>;
                         xlnx,tri-default = <0xffffffff>;
                         xlnx,tri-default-2 = <0xffffffff>;
+                        #gpio-cells = <2>;
+                        gpio-controller;
+                } ;
+
+                gpio-leds {
+                        compatible = "gpio-leds";
+
+                        heartbeat {
+                                label = "Heartbeat";
+                                gpios = <&LEDs_8Bit 4 1>;
+                                linux,default-trigger = "heartbeat";
+                        };
+
+                        yellow {
+                                label = "Yellow";
+                                gpios = <&LEDs_8Bit 5 1>;
+                        };
+
+                        red {
+                                label = "Red";
+                                gpios = <&LEDs_8Bit 6 1>;
+                        };
+
+                        green {
+                                label = "Green";
+                                gpios = <&LEDs_8Bit 7 1>;
+                        };
                 } ;
                 RS232_Uart_1: serial@84000000 {
                         clock-frequency = <125000000>;
diff --git a/arch/microblaze/platform/platform.c b/arch/microblaze/platform/platform.c
index 56e0234fa34..5b89b58c5ae 100644
--- a/arch/microblaze/platform/platform.c
+++ b/arch/microblaze/platform/platform.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/of_platform.h>
 #include <asm/prom.h>
+#include <asm/setup.h>
 
 static struct of_device_id xilinx_of_bus_ids[] __initdata = {
         { .compatible = "simple-bus", },
@@ -26,6 +27,7 @@ static struct of_device_id xilinx_of_bus_ids[] __initdata = {
 static int __init microblaze_device_probe(void)
 {
         of_platform_bus_probe(NULL, xilinx_of_bus_ids, NULL);
+        of_platform_reset_gpio_probe();
         return 0;
 }
 device_initcall(microblaze_device_probe);