ipq40xx: add support for ASUS RT-ACRH17/RT-AC42U

SOC:	IPQ4019
CPU:	Quad-core ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
DRAM:	256 MB
NAND:	128 MiB Macronix MX30LF1G18AC
ETH:	Qualcomm Atheros QCA8075 Gigabit Switch (4x LAN, 1x WAN)
USB:	1x 3.0 (via Synopsys DesignWare DWC3 controller in the SoC)
WLAN1:	Qualcomm Atheros QCA4019 2.4GHz 802.11bgn 2x2:2
WLAN2:	Qualcomm Atheros QCA9984 5GHz 802.11nac 4x4:4
INPUT:	1x WPS, 1x Reset
LEDS:	Status, WIFI1, WIFI2, WAN (red & blue), 4x LAN

This board is very similar to the RT-ACRH13/RT-AC58U. It must be flashed
with an intermediary initramfs image, the jffs2 ubi volume deleted, and
then finally a sysupgrade with the final image performed.

Signed-off-by: Joshua Roys <roysjosh@gmail.com>
(added ALT0)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

2 files changed, 308 insertions, 10 deletions

diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
index bd0c6b71df..ac4d4a139c 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-rt-ac58u.dts
@@ -21,10 +21,6 @@
 		led-upgrade = &led_power;
 	};
 
-	chosen {
-		bootargs-append = " ubi.mtd=UBI_DEV";
-	};
-
 	soc {
 		rng@22000 {
 			status = "okay";
@@ -272,12 +268,7 @@
 			#size-cells = <1>;
 
 			partition@0 {
-				/*
-				 * TODO: change to label = "ubi" once we drop 4.14.
-				 *       also drop the bootargs-append and all the
-				 *	 userspace CI_UBIPART="UBI_DEV" remains.
-				 */
-				label = "UBI_DEV";
+				label = "ubi";
 				reg = <0x00000000 0x08000000>;
 			};
 		};
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts
new file mode 100644
index 0000000000..31e2e40ac0
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-rt-ac42u.dts
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "ASUS RT-AC42U";
+	compatible = "asus,rt-ac42u";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256MB */
+	};
+
+	aliases {
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+	};
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		mdio@90000 {
+			status = "okay";
+		};
+
+		ess-psgmii@98000 {
+			status = "okay";
+		};
+
+		tcsr@1949000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1949000 0x100>;
+			qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
+		};
+
+		tcsr@194b000 {
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+		};
+
+		ess_tcsr@1953000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1953000 0x1000>;
+			qcom,ess-interface-select = <TCSR_ESS_PSGMII>;
+		};
+
+		tcsr@1957000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1957000 0x100>;
+			qcom,wifi_noc_memtype_m0_m2 = <TCSR_WIFI_NOC_MEMTYPE_M0_M2>;
+		};
+
+		usb3@8af8800 {
+			status = "okay";
+
+			dwc3@8a00000 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				usb3_port1: port@1 {
+					reg = <1>;
+					#trigger-source-cells = <0>;
+				};
+
+				usb3_port2: port@2 {
+					reg = <2>;
+					#trigger-source-cells = <0>;
+				};
+			};
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: led-0 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&tlmm 40 GPIO_ACTIVE_LOW>;
+			label = "blue:status";
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "90000.mdio-1:04:link";
+		};
+
+		led-2 {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_WAN;
+			gpios = <&tlmm 68 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "none";
+		};
+
+		led-3 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WLAN;
+			gpios = <&tlmm 52 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+
+		led-4 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_WLAN;
+			gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		led-5 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 45 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-6 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 43 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-7 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 42 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+
+		led-8 {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&tlmm 49 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "switch0";
+		};
+	};
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&qpic_bam {
+	status = "okay";
+};
+
+&tlmm {
+	serial_0_pins: serial0_pinmux {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	nand_pins: nand_pins {
+		pullups {
+			pins = "gpio53", "gpio58", "gpio59";
+			function = "qpic";
+			bias-pull-up;
+		};
+
+		pulldowns {
+			pins = "gpio55", "gpio56", "gpio57", "gpio60",
+				"gpio62", "gpio63", "gpio64", "gpio65",
+				"gpio66", "gpio67", "gpio69";
+			function = "qpic";
+			bias-pull-down;
+		};
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&nand {
+	pinctrl-0 = <&nand_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	nand@0 {
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "SBL1";
+				reg = <0x00000000 0x00080000>;
+				read-only;
+			};
+			partition@80000 {
+				label = "MIBIB";
+				reg = <0x00080000 0x00080000>;
+				read-only;
+			};
+			partition@100000 {
+				label = "QSEE";
+				reg = <0x00100000 0x00100000>;
+				read-only;
+			};
+			partition@200000 {
+				label = "CDT";
+				reg = <0x00200000 0x00080000>;
+				read-only;
+			};
+			partition@280000 {
+				label = "APPSBL";
+				reg = <0x00280000 0x00140000>;
+				read-only;
+			};
+			partition@3C0000 {
+				label = "APPSBLENV";
+				reg = <0x003C0000 0x00040000>;
+				read-only;
+			};
+			partition@400000 {
+				label = "ubi";
+				reg = <0x00400000 0x07C00000>;
+			};
+		};
+	};
+};
+
+&usb3_ss_phy {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ASUS-RT-AC42U";
+};
+
+&pcie0 {
+	status = "okay";
+	perst-gpio = <&tlmm 38 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 50 GPIO_ACTIVE_LOW>;
+	clkreq-gpio = <&tlmm 39 GPIO_ACTIVE_LOW>;
+
+	bridge@0,0 {
+		reg = <0x00000000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi2: wifi@1,0 {
+			compatible = "qcom,ath10k";
+			reg = <0x00010000 0 0 0 0>;
+
+			qcom,ath10k-calibration-variant = "ASUS-RT-AC42U";
+		};
+	};
+};