ipq807x: add Edimax CAX1800

Edimax CAX1800 is a 802.11 ax dual-band AP
with PoE. AP can be ceiling or wall mount.

Specifications:

    •     CPU: Qualcomm IPQ8070A Quad core Cortex-A53 1.4GHz
    •     RAM: 512MB of DDR3
    •     Storage: 128MB NAND (contains rootfs) / 8MB NOR (contains art and uboot-env)
    •     Ethernet: 1x 1G RJ45 port (QCA8072) PoE
    •     WLAN:
          2.4GHz: Qualcomm QCN5024 2x2 802.11b/g/n/ax 574 Mbps PHY rate
          5GHz: Qualcomm QCN5054 2x2 802.11a/b/g/n/ac/ax 1201 PHY rate

    •     LEDs:
          3 x GPIO-controlled System-LEDs
          (form one virtual RGB System-LED)
            black_small_square  Buttons: 1x soft reset
            black_small_square  Power: 12V DC jack or PoE (802.3af )

        An unpopulated serial header is onboard.
        RX/TX is working, bootwait is active, secure boot is not enabled.

        SSH can be activated in the stock firmware, but it drops only
        to a limited shell .

        Installation Instructions:

            black_small_square obtain serial access
            black_small_square stop auto boot

            black_small_square tftpboot the initramfs image (serverip is set to 192.168.99.8 in uboot)
            black_small_square bootm

            black_small_square copy openwrt-ipq807x-generic-edimax_cax1800-squashfs-nand-factory.ubi
	      to the device
            black_small_square write the image to the NAND:
            black_small_square cat /proc/mtd and look for rootfs partition (should be mtd0)
            black_small_square ubiformat /dev/mtd0 -f -y  openwrt-ipq807x-generic-edimax_cax1800-squashfs-
              nand-factory.ubi
            black_small_square reboot

	Note: Device is not using dual partitioning (NAND contains other partitions
        with different manufacture data etc.)
	Draytek VigorAP 960C and Lancom LW-600 both look similar, but I haven't checked them.

Signed-off-by: Dirk Buchwalder <buchwalder@posteo.de>

5 files changed, 342 insertions, 0 deletions

diff --git a/target/linux/ipq807x/base-files/etc/board.d/02_network b/target/linux/ipq807x/base-files/etc/board.d/02_network
index cfe7580f8e..e3f4d4f576 100644
--- a/target/linux/ipq807x/base-files/etc/board.d/02_network
+++ b/target/linux/ipq807x/base-files/etc/board.d/02_network
@@ -11,6 +11,9 @@ ipq807x_setup_interfaces()
 	local board="$1"
 
 	case "$board" in
+	edimax,cax1800)
+		ucidef_set_interfaces_lan_wan "lan"
+		;;
 	redmi,ax6|\
 	xiaomi,ax3600)
 		ucidef_set_interfaces_lan_wan "lan1 lan2 lan3" "wan"
diff --git a/target/linux/ipq807x/base-files/etc/hotplug.d/firmware/11-ath11k-caldata b/target/linux/ipq807x/base-files/etc/hotplug.d/firmware/11-ath11k-caldata
index 0a2908f13d..7f919bafc5 100644
--- a/target/linux/ipq807x/base-files/etc/hotplug.d/firmware/11-ath11k-caldata
+++ b/target/linux/ipq807x/base-files/etc/hotplug.d/firmware/11-ath11k-caldata
@@ -9,6 +9,7 @@ board=$(board_name)
 case "$FIRMWARE" in
 "ath11k/IPQ8074/hw2.0/cal-ahb-c000000.wifi.bin")
 	case "$board" in
+	edimax,cax1800|\
 	redmi,ax6|\
 	xiaomi,ax3600)
 		caldata_extract "0:art" 0x1000 0x20000
diff --git a/target/linux/ipq807x/base-files/lib/upgrade/platform.sh b/target/linux/ipq807x/base-files/lib/upgrade/platform.sh
index f9c28fad09..d6e5d04a31 100644
--- a/target/linux/ipq807x/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq807x/base-files/lib/upgrade/platform.sh
@@ -42,6 +42,9 @@ platform_pre_upgrade() {
 
 platform_do_upgrade() {
 	case "$(board_name)" in
+	edimax,cax1800)
+		nand_do_upgrade "$1"
+		;;
 	redmi,ax6|\
 	xiaomi,ax3600)
 		# Make sure that UART is enabled
diff --git a/target/linux/ipq807x/files/arch/arm64/boot/dts/qcom/ipq8070-cax1800.dts b/target/linux/ipq807x/files/arch/arm64/boot/dts/qcom/ipq8070-cax1800.dts
new file mode 100644
index 0000000000..2c9cbd5b3c
--- /dev/null
+++ b/target/linux/ipq807x/files/arch/arm64/boot/dts/qcom/ipq8070-cax1800.dts
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/* Copyright (c) 2021, Dirk Buchwalder <buchwalder@posteo.de> */
+
+/dts-v1/;
+
+#include "ipq8074-512m.dtsi"
+#include "ipq8074-ac-cpu.dtsi"
+#include "ipq8074-ess.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Edimax CAX1800";
+	compatible = "edimax,cax1800", "qcom,ipq8074";
+
+	aliases {
+		serial0 = &blsp1_uart5;
+		led-boot = &led_system_red;
+		led-failsafe = &led_system_red;
+		led-running = &led_system_green;
+		led-upgrade = &led_system_red;
+		/* Aliases as required by u-boot to patch MAC addresses */
+		ethernet0 = &dp5;
+		label-mac-device = &dp5;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+		bootargs-append = " root=/dev/ubiblock0_1";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_system_red: system-red {
+			label = "red:system";
+			gpios = <&tlmm 25 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_system_green: system-green {
+			label = "green:system";
+			gpios = <&tlmm 26 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_system_blue: system-blue {
+			label = "blue:system";
+			gpios = <&tlmm 27 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&tlmm {
+	mdio_pins: mdio-pins {
+		mdc {
+			pins = "gpio68";
+			function = "mdc";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		mdio {
+			pins = "gpio69";
+			function = "mdio";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+	};
+};
+
+&blsp1_uart5 {
+	status = "okay";
+};
+
+&prng {
+	status = "okay";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&crypto {
+	status = "okay";
+};
+
+&qpic_bam {
+	status = "okay";
+};
+
+&qpic_nand {
+	status = "okay";
+
+	nand@0 {
+		reg = <0>;
+		nand-ecc-strength = <4>;
+		nand-ecc-step-size = <512>;
+		nand-bus-width = <8>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "rootfs";
+				reg = <0x0000000 0x3400000>;
+			};
+		};
+	};
+};
+
+&blsp1_spi1 {
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	cs-select = <0>;
+	status = "ok";
+
+	m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		use-default-sizes;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "0:sbl1";
+				reg = <0x0 0x50000>;
+				read-only;
+			};
+
+			partition@50000 {
+				label = "0:mibib";
+				reg = <0x50000 0x10000>;
+				read-only;
+			};
+
+			partition@60000 {
+				label = "0:bootconfig";
+				reg = <0x60000 0x20000>;
+				read-only;
+			};
+
+			partition@80000 {
+				label = "0:bootconfig1";
+				reg = <0x80000 0x20000>;
+				read-only;
+			};
+
+			partition@a0000 {
+				label = "0:qsee";
+				reg = <0xa0000 0x180000>;
+				read-only;
+			};
+
+			partition@220000 {
+				label = "0:qsee_1";
+				reg = <0x220000 0x180000>;
+				read-only;
+			};
+
+			partition@3a0000 {
+				label = "0:devcfg";
+				reg = <0x3a0000 0x10000>;
+				read-only;
+			};
+
+			partition@3b0000 {
+				label = "0:devcfg_1";
+				reg = <0x3b0000 0x10000>;
+				read-only;
+			};
+
+			partition@3c0000 {
+				label = "0:apdp";
+				reg = <0x3c0000 0x10000>;
+				read-only;
+			};
+
+			partition@3d0000 {
+				label = "0:apdp_1";
+				reg = <0x3d0000 0x10000>;
+				read-only;
+			};
+
+			partition@3e0000 {
+				label = "0:rpm";
+				reg = <0x3e0000 0x40000>;
+				read-only;
+			};
+
+			partition@420000 {
+				label = "0:rpm_1";
+				reg = <0x420000 0x40000>;
+				read-only;
+			};
+
+			partition@460000 {
+				label = "0:cdt";
+				reg = <0x460000 0x10000>;
+				read-only;
+			};
+
+			partition@470000 {
+				label = "0:cdt_1";
+				reg = <0x470000 0x10000>;
+				read-only;
+			};
+
+			partition@480000 {
+				label = "0:appsblenv";
+				reg = <0x480000 0x10000>;
+			};
+
+			partition@490000 {
+				label = "0:appsbl";
+				reg = <0x490000 0xa0000>;
+				read-only;
+			};
+
+			partition@530000 {
+				label = "0:appsbl_1";
+				reg = <0x530000 0xa0000>;
+				read-only;
+			};
+
+			partition@5d0000 {
+				label = "0:art";
+				reg = <0x5d0000 0x40000>;
+				read-only;
+			};
+
+			partition@610000 {
+				label = "0:ethphyfw";
+				reg = <0x610000 0x80000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	pinctrl-0 = <&mdio_pins>;
+	pinctrl-names = "default";
+
+	reset-gpios = <&tlmm 37 GPIO_ACTIVE_LOW>;
+
+	qca8075: ethernet-phy@4 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <4>;
+	};
+};
+
+&switch {
+	status = "okay";
+
+	switch_cpu_bmp = <0x1>;  /* cpu port bitmap */
+	switch_lan_bmp = <0x1e>; /* lan port bitmap */
+	switch_wan_bmp = <0x20>; /* wan port bitmap */
+	switch_mac_mode = <0x0>; /* mac mode for uniphy instance0*/
+	switch_mac_mode1 = <0xff>; /* mac mode for uniphy instance1*/
+	switch_mac_mode2 = <0xff>; /* mac mode for uniphy instance2*/
+	bm_tick_mode = <0>; /* bm tick mode */
+	tm_tick_mode = <0>; /* tm tick mode */
+
+	qcom,port_phyinfo {
+		port@0 {
+			port_id = <1>;
+			phy_address = <0>;
+		};
+		port@1 {
+			port_id = <2>;
+			phy_address = <1>;
+		};
+		port@2 {
+			port_id = <3>;
+			phy_address = <2>;
+		};
+		port@3 {
+			port_id = <4>;
+			phy_address = <3>;
+		};
+		port@4 {
+			port_id = <5>;
+			phy_address = <4>;
+		};
+	};
+};
+
+&edma {
+	status = "okay";
+};
+
+&dp5 {
+	status = "okay";
+	phy-handle = <&qca8075>;
+	label = "lan";
+};
+
+&wifi {
+	status = "okay";
+
+	qcom,ath11k-calibration-variant = "Edimax-CAX1800";
+	qcom,ath11k-fw-memory-mode = <1>;
+};
diff --git a/target/linux/ipq807x/image/generic.mk b/target/linux/ipq807x/image/generic.mk
index 7fd0169a64..95937512a9 100644
--- a/target/linux/ipq807x/image/generic.mk
+++ b/target/linux/ipq807x/image/generic.mk
@@ -17,6 +17,19 @@ define Device/UbiFit
 	IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
 endef
 
+define Device/edimax_cax1800
+	$(call Device/FitImage)
+	$(call Device/UbiFit)
+	DEVICE_VENDOR := Edimax
+	DEVICE_MODEL := CAX1800
+	BLOCKSIZE := 128k
+	PAGESIZE := 2048
+	DEVICE_DTS_CONFIG := config@ac03
+	SOC := ipq8070
+	DEVICE_PACKAGES := ipq-wifi-edimax_cax1800
+endef
+TARGET_DEVICES += edimax_cax1800
+
 define Device/redmi_ax6
 	$(call Device/xiaomi_ax3600)
 	DEVICE_VENDOR := Redmi