ath79: add support for MikroTik RouterBOARD 921GS-5HPacD-15s

The MikroTik RouterBOARD 921GS-5HPacD-15s (mANTBox 15s) is an outdoor
antenna for 5 GHz with an built-in router. This ports the board from
ar71xx.

See https://mikrotik.com/product/RB921GS-5HPacD-15S for more info.

Specifications:
 - SoC: Qualcomm Atheros QCA9558 (720 MHz)
 - RAM: 128 MB
 - Storage: 128 MB NAND
 - Wireless: external QCA9892 802.11a/ac 2x2:2
 - Ethernet: 1x 1000/100/10 Mbps, integrated, via AR8031 PHY, passive PoE in
 - SFP: 1x host

Working:
 - NAND storage detection
 - Ethernet
 - Wireless
 - 1x user LED (blinks during boot, sysupgrade)
 - Reset button
 - Sysupgrade

Untested:
 - SFP cage (probably not working)

Installation (untested):
 - Boot initramfs image via TFTP and then flash sysupgrade image

As the embedded RB921-pcb is a stripped down version of the RB922 this patch
adds a common dtsi for this series and includes this to the final dts-files.

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
[move ath10k-leds closer to ath10k definition in DTS files]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 131 insertions, 0 deletions

diff --git a/target/linux/ath79/dts/qca9558_mikrotik_routerboard-92x.dtsi b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-92x.dtsi
new file mode 100644
index 0000000000..c48f997e89
--- /dev/null
+++ b/target/linux/ath79/dts/qca9558_mikrotik_routerboard-92x.dtsi
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+#include "qca955x.dtsi"
+
+/ {
+	aliases {
+		led-boot = &led_user;
+		led-failsafe = &led_user;
+		led-upgrade = &led_user;
+		serial0 = &uart;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_user: user {
+			label = "mikrotik:green:user";
+			gpios = <&gpio 12 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
+			debounce-interval = <60>;
+		};
+	};
+
+	gpio-export {
+		compatible = "gpio-export";
+
+		gpio_nand_power {
+			gpio-export,name = "mikrotik:power:nand";
+			gpio-export,output = <0>;
+			gpios = <&gpio 23 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	phy4: ethernet-phy@4 {
+		reg = <4>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+
+	phy-handle = <&phy4>;
+	pll-data = <0x8f000000 0xa0000101 0xa0001313>;
+
+	gmac-config {
+		device = <&gmac>;
+		rgmii-enabled = <1>;
+	};
+};
+
+&spi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <25000000>;
+
+		partitions {
+			compatible = "mikrotik,routerboot-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "routerboot";
+				reg = <0x0 0x0>;
+				read-only;
+			};
+
+			hard_config: hard_config {
+				read-only;
+			};
+
+			bios {
+				read-only;
+			};
+
+			soft_config {
+			};
+		};
+	};
+};
+
+&nand {
+	status = "okay";
+
+	nand-ecc-mode = "soft";
+	qca,nand-swap-dma;
+	qca,nand-scan-fixup;
+
+	partitions {
+		compatible = "fixed-partitions";
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "booter";
+			reg = <0x0000000 0x0040000>;
+			read-only;
+		};
+
+		partition@40000 {
+			label = "kernel";
+			reg = <0x0040000 0x03c0000>;
+		};
+
+		partition@400000 {
+			label = "ubi";
+			reg = <0x0400000 0x7c00000>;
+		};
+	};
+};
+
+&uart {
+	status = "okay";
+};