lantiq: add Falcon support

This adds support for the Intel Falcon SoC for GPON.

Support for the Falcon SoC was removed in commit c8218363951 svn rev:
40392 from OpenWrt, this commit adds it again.

This patch adds a new subtarget for the Falcon SoC, but it still misses
all the drivers needed to control the GPON part.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 57 insertions, 0 deletions

diff --git a/target/linux/lantiq/dts/FALCON-MDU.dts b/target/linux/lantiq/dts/FALCON-MDU.dts
new file mode 100644
index 0000000000..1d459c4453
--- /dev/null
+++ b/target/linux/lantiq/dts/FALCON-MDU.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "falcon.dtsi"
+#include "falcon-sflash-16M.dtsi"
+
+/ {
+	model = "MDU - Lantiq Falcon / Vinax MDU Board";
+	compatible = "lantiq,falcon-mdu", "lantiq,falcon";
+
+	chosen {
+		bootargs-append = "console=ttyLTQ0,115200 init=/etc/preinit";
+	};
+
+	aliases {
+		spi0 = &ebu_cs0;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x4000000>;  // 64M at 0x0
+	};
+
+	mdu-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&bootled_pins>;
+
+		LED_0 {
+			label = "mdu:green:gpon";
+			gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+		LED_1 {
+			label = "mdu:green:status";
+			gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+		LED_2 {
+			label = "mdu:green:2";
+			gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+		LED_3 {
+			label = "mdu:green:3";
+			gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+		LED_4 {
+			label = "mdu:green:4";
+			gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+		};
+	};
+};
+