bmips: add new target

This target has full device tree support, thus reducing the number of
patches needed for bcm63xx, in which there's a patch for every board.

The intention is to start with a minimal amount of downstream patches and
start upstreaming all of them.

Current status:
 - Enabling EHCI/OHCI on BCM6358 causes a kernel panic.
 - BCM63268 lacks Timer Clocks/Reset support.
 - No PCI/PCIe drivers.
 - No ethernet drivers.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 168 insertions, 0 deletions

diff --git a/target/linux/bmips/dts/bcm6358-huawei-hg556a-b.dts b/target/linux/bmips/dts/bcm6358-huawei-hg556a-b.dts
new file mode 100644
index 0000000000..5b8709c722
--- /dev/null
+++ b/target/linux/bmips/dts/bcm6358-huawei-hg556a-b.dts
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "bcm6358.dtsi"
+
+/ {
+	compatible = "huawei,hg556a-b", "brcm,bcm6358";
+	model = "Huawei EchoLife HG556a (version B)";
+
+	aliases {
+		led-boot = &power_red;
+		led-failsafe = &power_red;
+		led-running = &power_red;
+		led-upgrade = &power_red;
+
+		led-dsl = &dsl_red;
+		led-internet = &dsl_red;
+		led-usb = &hspa_red;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x04000000>;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		help {
+			label = "help";
+			gpios = <&pinctrl 8 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_HELP>;
+			debounce-interval = <60>;
+		};
+
+		wlan {
+			label = "wlan";
+			gpios = <&pinctrl 9 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WLAN>;
+			debounce-interval = <60>;
+		};
+
+		restart {
+			label = "restart";
+			gpios = <&pinctrl 10 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&pinctrl 11 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_CONFIG>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led@0 {
+			label = "red:message";
+			gpios = <&pinctrl 0 GPIO_ACTIVE_LOW>;
+		};
+
+		hspa_red: led@1 {
+			label = "red:hspa";
+			gpios = <&pinctrl 1 GPIO_ACTIVE_LOW>;
+		};
+
+		dsl_red: led@2 {
+			label = "red:dsl";
+			gpios = <&pinctrl 2 GPIO_ACTIVE_LOW>;
+		};
+
+		power_red: led@3 {
+			label = "red:power";
+			gpios = <&pinctrl 3 GPIO_ACTIVE_LOW>;
+		};
+
+		led@6 {
+			label = "all";
+			gpios = <&pinctrl 6 GPIO_ACTIVE_LOW>;
+			default-state = "on";
+		};
+
+		led@12 {
+			label = "green:lan1";
+			gpios = <&pinctrl 12 GPIO_ACTIVE_LOW>;
+		};
+
+		led@13 {
+			label = "red:lan1";
+			gpios = <&pinctrl 13 GPIO_ACTIVE_LOW>;
+		};
+
+		led@15 {
+			label = "green:lan2";
+			gpios = <&pinctrl 15 GPIO_ACTIVE_LOW>;
+		};
+
+		led@22 {
+			label = "red:lan2";
+			gpios = <&pinctrl 22 GPIO_ACTIVE_LOW>;
+		};
+
+		led@23 {
+			label = "green:lan3";
+			gpios = <&pinctrl 23 GPIO_ACTIVE_LOW>;
+		};
+
+		led@26 {
+			label = "red:lan3";
+			gpios = <&pinctrl 26 GPIO_ACTIVE_LOW>;
+		};
+
+		led@27 {
+			label = "green:lan4";
+			gpios = <&pinctrl 27 GPIO_ACTIVE_LOW>;
+		};
+
+		led@28 {
+			label = "red:lan4";
+			gpios = <&pinctrl 28 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&pflash {
+	status = "okay";
+
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		cfe: partition@0 {
+			label = "cfe";
+			reg = <0x000000 0x020000>;
+			read-only;
+		};
+
+		partition@20000 {
+			label = "firmware";
+			reg = <0x020000 0xec0000>;
+			compatible = "brcm,bcm963xx-imagetag";
+		};
+
+		cal_data: partition@ee0000 {
+			label = "cal_data";
+			reg = <0xee0000 0x100000>;
+			read-only;
+		};
+
+		partition@fe0000 {
+			label = "nvram";
+			reg = <0xfe0000 0x020000>;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usbh {
+	status = "okay";
+};