ipq40xx: add MikroTik hAP ac2 support

This adds support for the MikroTik RouterBOARD RBD52G-5HacD2HnD-TC
(hAP ac²), a  indoor dual band, dual-radio 802.11ac
wireless AP with integrated omnidirectional antennae, USB port and  five
10/100/1000 Mbps Ethernet ports.

See https://mikrotik.com/product/hap_ac2 for more info.

Specifications:
 - SoC: Qualcomm Atheros IPQ4018
 - RAM: 128 MB
 - Storage: 16 MB NOR
 - Wireless:
   · Built-in IPQ4018 (SoC) 802.11b/g/n 2x2:2, 2.5 dBi antennae
   · Built-in IPQ4018 (SoC) 802.11a/n/ac 2x2:2, 2.5 dBi antennae
 - Ethernet: Built-in IPQ4018 (SoC, QCA8075) , 5x 1000/100/10 port,
             passive PoE in
- 1x USB Type A port

Installation:
Boot the initramfs image via TFTP and then flash the sysupgrade
image using "sysupgrade -n"

Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit faea7becafc634dc882f0ad8f9388862ccd5bd0d)
[Compile Tested]
Signed-off-by: Nick Hainke <vincent@systemli.org>

6 files changed, 314 insertions, 1 deletions

diff --git a/target/linux/ipq40xx/base-files/etc/board.d/02_network b/target/linux/ipq40xx/base-files/etc/board.d/02_network
index fe21dc8035..515fa115d9 100755
--- a/target/linux/ipq40xx/base-files/etc/board.d/02_network
+++ b/target/linux/ipq40xx/base-files/etc/board.d/02_network
@@ -48,6 +48,7 @@ ipq40xx_setup_interfaces()
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		;;
 	asus,rt-ac58u|\
+	mikrotik,hap-ac2|\
 	zyxel,nbg6617)
 		ucidef_set_interfaces_lan_wan "eth0" "eth1"
 		ucidef_add_switch "switch0" \
@@ -170,6 +171,11 @@ ipq40xx_setup_macs()
 		wan_mac=$(mtd_get_mac_ascii devinfo hw_mac_addr)
 		lan_mac=$(macaddr_add "$wan_mac" 1)
 		;;
+	mikrotik,hap-ac2)
+		wan_mac=$(cat /sys/firmware/mikrotik/hard_config/mac_base)
+		lan_mac=$(macaddr_add $wan_mac 1)
+		label_mac="$wan_mac"
+		;;
 	esac
 
 	[ -n "$lan_mac" ] && ucidef_set_interface_macaddr "lan" $lan_mac
diff --git a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index c4d9dd78e3..0e027dd0a5 100644
--- a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -140,6 +140,11 @@ case "$FIRMWARE" in
 		caldata_valid "202f" || caldata_extract "ART" 0x1000 0x2f20
 		ath10k_patch_mac $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 0x66) +2)
 		;;
+	mikrotik,hap-ac2)
+		wlan_data="/sys/firmware/mikrotik/hard_config/wlan_data"
+		( [ -f "$wlan_data" ] && caldata_sysfsload_from_file "$wlan_data" 0x0 0x2f20 ) || \
+		( [ -d "$wlan_data" ] && caldata_sysfsload_from_file "$wlan_data/data_0" 0x0 0x2f20 )
+		;;
 	netgear,ex6100v2 |\
 	netgear,ex6150v2)
 		caldata_extract "ART" 0x1000 0x2f20
@@ -244,6 +249,11 @@ case "$FIRMWARE" in
 		caldata_valid "202f" || caldata_extract "ART" 0x5000 0x2f20
 		ath10k_patch_mac $(macaddr_add $(get_mac_binary "/sys/bus/i2c/devices/0-0050/eeprom" 0x66) +3)
 		;;
+	mikrotik,hap-ac2)
+		wlan_data="/sys/firmware/mikrotik/hard_config/wlan_data"
+		( [ -f "$wlan_data" ] && caldata_sysfsload_from_file "$wlan_data" 0x8000 0x2f20 ) || \
+		( [ -d "$wlan_data" ] && caldata_sysfsload_from_file "$wlan_data/data_2" 0x0 0x2f20 )
+		;;
 	netgear,ex6100v2 |\
 	netgear,ex6150v2)
 		caldata_extract "ART" 0x5000 0x2f20
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
index 5582696759..c94b4d8f9e 100644
--- a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
@@ -111,6 +111,10 @@ platform_do_upgrade() {
 		CI_KERNPART="part.safe"
 		nand_do_upgrade "$1"
 		;;
+	mikrotik,hap-ac2)
+		[ "$(rootfs_type)" = "tmpfs" ] && mtd erase firmware
+		default_do_upgrade "$1"
+		;;
 	openmesh,a42 |\
 	openmesh,a62 |\
 	plasmacloud,pa1200 |\
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-hap-ac2.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-hap-ac2.dts
new file mode 100644
index 0000000000..e1e6326ae9
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-hap-ac2.dts
@@ -0,0 +1,272 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/* Copyright (c) 2020, Robert Marko <robimarko@gmail.com> */
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "MikroTik hAP ac2";
+	compatible = "mikrotik,hap-ac2";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x08000000>;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	aliases {
+		led-boot = &led_user;
+		led-failsafe = &led_user;
+		led-running = &led_user;
+		led-upgrade = &led_user;
+	};
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		counter@4a1000 {
+			compatible = "qcom,qca-gcnt";
+			reg = <0x4a1000 0x4>;
+		};
+
+		tcsr@1949000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1949000 0x100>;
+			qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
+		};
+
+		tcsr@194b000 {
+			/* select hostmode */
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+			status = "okay";
+		};
+
+		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 {
+				phys = <&usb3_hs_phy>;
+				phy-names = "usb2-phy";
+			};
+		};
+
+		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 63 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+
+		mode {
+			label = "mode";
+			gpios = <&tlmm 5 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RFKILL>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			label = "green:power";
+			gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+			panic-indicator;
+		};
+
+		led_user: user {
+			label = "green:user";
+			gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&tlmm {
+	serial_pins: serial_pinmux {
+		mux {
+			pins = "gpio60", "gpio61";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	spi_0_pins: spi_0_pinmux {
+		pin {
+			function = "blsp_spi0";
+			pins = "gpio55", "gpio56", "gpio57";
+			drive-strength = <2>;
+			bias-disable;
+		};
+		pin_cs {
+			function = "gpio";
+			pins = "gpio54";
+			drive-strength = <2>;
+			bias-disable;
+			output-high;
+		};
+	};
+
+	enable-usb-power {
+		gpio-hog;
+		gpios = <2 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "enable USB power";
+	};
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&blsp1_spi1 {
+	status = "okay";
+
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+
+	flash@0 {
+		reg = <0>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <40000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "Qualcomm";
+				reg = <0x0 0x80000>;
+				read-only;
+			};
+
+			partition@80000 {
+				compatible = "mikrotik,routerboot-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				label = "RouterBoot";
+				reg = <0x80000 0x80000>;
+				read-only;
+
+				hard_config {
+					read-only;
+				};
+
+				dtb_config {
+					read-only;
+				};
+
+				soft_config {
+				};
+			};
+
+			partition@100000 {
+				compatible = "mikrotik,minor";
+				label = "firmware";
+				reg = <0x100000 0xf00000>;
+			};
+		};
+	};
+};
+
+&blsp1_uart1 {
+	status = "okay";
+
+	pinctrl-0 = <&serial_pins>;
+	pinctrl-names = "default";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&mdio {
+	status = "okay";
+};
+
+&ethphy0 {
+	qcom,single-led-1000;
+	qcom,single-led-100;
+	qcom,single-led-10;
+};
+
+&ethphy1 {
+	qcom,single-led-1000;
+	qcom,single-led-100;
+	qcom,single-led-10;
+};
+
+&ethphy2 {
+	qcom,single-led-1000;
+	qcom,single-led-100;
+	qcom,single-led-10;
+};
+
+&ethphy3 {
+	qcom,single-led-1000;
+	qcom,single-led-100;
+	qcom,single-led-10;
+};
+
+&ethphy4 {
+	qcom,single-led-1000;
+	qcom,single-led-100;
+	qcom,single-led-10;
+};
+
+&wifi0 {
+	status = "okay";
+
+	qcom,ath10k-calibration-variant = "MikroTik-hAP-ac2";
+};
+
+&wifi1 {
+	status = "okay";
+
+	qcom,ath10k-calibration-variant = "MikroTik-hAP-ac2";
+};
diff --git a/target/linux/ipq40xx/image/mikrotik.mk b/target/linux/ipq40xx/image/mikrotik.mk
index e69de29bb2..9509ef8577 100644
--- a/target/linux/ipq40xx/image/mikrotik.mk
+++ b/target/linux/ipq40xx/image/mikrotik.mk
@@ -0,0 +1,20 @@
+define Device/mikrotik_nor
+	DEVICE_VENDOR := MikroTik
+	BLOCKSIZE := 64k
+	IMAGE_SIZE := 16128k
+	KERNEL_NAME := vmlinux
+	KERNEL := kernel-bin | append-dtb-elf
+	IMAGES = sysupgrade.bin
+	IMAGE/sysupgrade.bin := append-kernel | kernel2minor -s 1024 | \
+		pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
+		append-metadata | check-size
+endef
+
+define Device/mikrotik_hap-ac2
+	$(call Device/mikrotik_nor)
+	DEVICE_MODEL := hAP ac2
+	SOC := qcom-ipq4018
+	DEVICE_PACKAGES := ipq-wifi-mikrotik_hap-ac2 -kmod-ath10k-ct \
+		kmod-ath10k-ct-smallbuffers
+endef
+TARGET_DEVICES += mikrotik_hap-ac2
diff --git a/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch b/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
index a3d3341587..6a421b9007 100644
--- a/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
+++ b/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
@@ -10,7 +10,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -837,11 +837,58 @@ dtb-$(CONFIG_ARCH_QCOM) += \
+@@ -837,11 +837,59 @@ dtb-$(CONFIG_ARCH_QCOM) += \
  	qcom-apq8074-dragonboard.dtb \
  	qcom-apq8084-ifc6540.dtb \
  	qcom-apq8084-mtp.dtb \
@@ -31,6 +31,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 +	qcom-ipq4018-gl-ap1300.dtb \
 +	qcom-ipq4018-jalapeno.dtb \
 +	qcom-ipq4018-meshpoint-one.dtb \
++	qcom-ipq4018-hap-ac2.dtb \
 +	qcom-ipq4018-nbg6617.dtb \
 +	qcom-ipq4019-oap100.dtb \
 +	qcom-ipq4018-pa1200.dtb \