ipq40xx: add support for Linksys WHW03 V2

SOC:             Qualcomm IPQ4019
WiFi 1:          QCA4019 IEEE 802.11b/g/n
WiFi 2:          QCA4019 IEEE 802.11a/n/ac
WiFi 3:          QCA8888 IEEE 802.11a/n/ac
Bluetooth:       Qualcomm CSR8811 (A12U)
Zigbee:          Silicon Labs EM3581 NCP + Skyworks SE2432L
Ethernet:        Qualcomm Atheros QCA8072 (2-port)
Flash 1:         Mactronix MX30LF4G18AC-XKI
RAM (NAND):      SK hynix H5TC4G63CFR-PBA (512MB)
LED Controller:  NXP PCA9633 (I2C)
Buttons:         Single reset button (GPIO).

- The three WiFis were fully tested and are configured with the same settings as in the vendor firmware.
- The specific board files were submitted to the ATH10k mailing list but I'm still waiting for a reply. They can be removed once they are approved upstream.
- Two ethernet ports are accessible on the device. By default one is configured as WAN and the other one is LAN. They are fully working.

Bluetooth:
========
- Fully working with the following caveats:
  - RFKILL need to be enabled in the kernel.
  - An older version of bluez is needed as bccmd is needed to configure the chip.

Zigbee:
======
- The spidev device is available in the /dev directory.
- GPIOs are configured the same way as in the vendor firmware.
- Tests are on-going. I am working on getting access to the Silicon Labs stack to validate that it is fully working.

Installation:
=========
The squash-factory image can be installed via the Linksys Web UI:
1. Open "http://192.168.1.1/ca" (Change the IP with the IP of your device).
2. Login with your admin password.
3. To enter into the support mode, click on the "CA" link and the bottom of the page.
4. Open the "Connectivity" menu and upload the squash-factory image with the "Choose file" button.
5. Click start. Ignore all the prompts and warnings by click "yes" in all the popups.

The device uses a dual partition mechanism. The device automatically revert to the previous partition after 3 failed boot attempts.
If you want to force the previous firmware to load, you can turn off and then turn on the device for 2 seconds, 3 times in a row.

It can also be done via TFTP:
1. Setup a local TFTP server and configure its IP to 192.168.1.100.
2. Rename your image to "nodes_v2.img" and put it to the TFTP root of your server.
3. Connect to the device through the serial console.
4. Power on device and press enter when prompted to drop into U-Boot.
5. Flash the partition of your choice by typing "run flashimg" or "run flashimg2".
6. Once flashed, enter "reset" to reboot the device.

Reviewed-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Vincent Tremblay <vincent@vtremblay.dev>

5 files changed, 541 insertions, 2 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 00e78d0526..ced26b9dd3 100644
--- a/target/linux/ipq40xx/base-files/etc/board.d/02_network
+++ b/target/linux/ipq40xx/base-files/etc/board.d/02_network
@@ -34,6 +34,7 @@ ipq40xx_setup_interfaces()
 	edgecore,ecw5211|\
 	glinet,gl-b2200|\
 	google,wifi|\
+	linksys,whw03v2|\
 	luma,wrtq-329acn|\
 	mikrotik,cap-ac|\
 	netgear,wac510|\
diff --git a/target/linux/ipq40xx/base-files/etc/init.d/bootcount b/target/linux/ipq40xx/base-files/etc/init.d/bootcount
index 6acebcef6e..df656c9b85 100755
--- a/target/linux/ipq40xx/base-files/etc/init.d/bootcount
+++ b/target/linux/ipq40xx/base-files/etc/init.d/bootcount
@@ -11,7 +11,8 @@ boot() {
 	linksys,ea6350v3|\
 	linksys,ea8300|\
 	linksys,mr8300|\
-	linksys,whw01)
+	linksys,whw01|\
+	linksys,whw03v2)
 		mtd resetbc s_env || true
 		;;
 	netgear,wac510)
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
index 96071959d4..2012213a56 100644
--- a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
@@ -165,7 +165,8 @@ platform_do_upgrade() {
 	linksys,ea6350v3 |\
 	linksys,ea8300 |\
 	linksys,mr8300 |\
-	linksys,whw01)
+	linksys,whw01 |\
+	linksys,whw03v2)
 		platform_do_upgrade_linksys "$1"
 		;;
 	meraki,mr33 |\
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-whw03v2.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-whw03v2.dts
new file mode 100644
index 0000000000..e1e8cf2588
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-whw03v2.dts
@@ -0,0 +1,519 @@
+// 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/soc/qcom,tcsr.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+    model = "Linksys WHW03 V2 (Velop)";
+    compatible = "linksys,whw03v2", "qcom,ipq4019";
+
+    aliases {
+        led-boot = &led_blue;
+        led-failsafe = &led_red;
+        led-running = &led_green;
+        led-upgrade = &led_red;
+    };
+
+    // The arguments rootfstype and ro are needed
+    // to override the default bootargs
+    chosen {
+        bootargs-append = " root=/dev/ubiblock0_0 rootfstype=squashfs ro";
+        stdout-path = &blsp1_uart1;
+    };
+
+    soc {
+        ess-tcsr@1953000 {
+            compatible = "qcom,tcsr";
+            reg = <0x1953000 0x1000>;
+            qcom,ess-interface-select = <TCSR_ESS_PSGMII>;
+        };
+
+
+        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>;
+        };
+
+        tcsr@1957000 {
+            compatible = "qcom,tcsr";
+            reg = <0x1957000 0x100>;
+            qcom,wifi_noc_memtype_m0_m2 = <TCSR_WIFI_NOC_MEMTYPE_M0_M2>;
+        };
+    };
+
+
+    keys {
+        compatible = "gpio-keys";
+
+        reset {
+            label = "reset";
+            gpios = <&tlmm 18 GPIO_ACTIVE_LOW>;
+            linux,code = <KEY_RESTART>;
+        };
+    };
+};
+
+
+&tlmm {
+    mdio_pins: mdio-pinmux {
+        mux-1 {
+            pins = "gpio6";
+            function = "mdio";  
+            bias-pull-up;
+        };
+
+        mux-2 {
+            pins = "gpio7";
+            function = "mdc";
+            bias-pull-up;
+        };
+    };
+
+    i2c_0_pins: i2c-0-pinmux {
+        mux {
+            function = "blsp_i2c0";
+            pins = "gpio20", "gpio21";
+            bias-disable;
+        };
+    };
+
+    serial_0_pins: serial0-pinmux {
+        mux {
+            pins = "gpio16", "gpio17";
+            function = "blsp_uart0";
+            bias-disable;
+        };
+    };
+
+    serial_1_pins: serial1-pinmux {
+        mux {
+            pins = "gpio8", "gpio9", "gpio10", "gpio11";
+            function = "blsp_uart1";
+            bias-disable;
+        };
+    };
+
+    spi_0_pins: spi-0-pinmux {
+        mux {
+            function = "blsp_spi0";
+            pins = "gpio13", "gpio14", "gpio15";
+            drive-strength = <12>;
+            bias-disable;
+        };
+
+        mux-cs {
+            pins = "gpio12";
+            drive-strength = <2>;
+            bias-disable;
+            output-high;
+        };
+    };
+    
+    spi_1_pins: spi-1-pinmux {
+        mux-1 {
+            function = "blsp_spi1";
+            pins = "gpio44", "gpio46","gpio47";
+            bias-disable;
+        };
+
+        mux-2 {
+            pins = "gpio31", "gpio45", "gpio49";
+            function = "gpio";
+            bias-pull-up;
+            output-high;
+        };
+
+        host-interrupt {
+            pins = "gpio42";
+            function = "gpio";
+            input;
+        };
+    };
+
+    wifi_0_pins: wifi0-pinmux {
+        btcoexist {
+            bias-pull-up;
+            drive-strength = <6>;
+            function = "gpio";
+            output-high;
+            pins = "gpio52";
+        };
+    };
+
+    zigbee-0 {
+        gpio-hog;
+        gpios = <29 GPIO_ACTIVE_HIGH>;
+        bias-disable;
+        output-low;
+    };
+
+    zigbee-1 {
+        gpio-hog;
+        gpios = <50 GPIO_ACTIVE_HIGH>;
+        bias-disable;
+        input;
+    };
+
+    bluetooth-enable {
+        gpio-hog;
+        gpios = <32 GPIO_ACTIVE_HIGH>;
+        output-high;
+    };
+};
+
+&mdio {
+    status = "okay";
+    pinctrl-0 = <&mdio_pins>;
+    pinctrl-names = "default";
+    phy-reset-gpios = <&tlmm 19 GPIO_ACTIVE_LOW>;
+};
+
+&ethphy0 {
+    status = "disabled";
+};
+
+&ethphy1 {
+    status = "disabled";
+};
+
+&ethphy2 {
+    status = "disabled";
+};
+
+&ethphy3 {
+    reg = <0x1b>;
+};
+
+&ethphy4 {
+    reg = <0x1c>;
+};
+
+&psgmiiphy {
+    reg = <0x1d>;
+};
+
+&watchdog {
+    status = "okay";
+};
+
+&prng {
+    status = "okay";
+};
+
+&blsp_dma {
+    status = "okay";
+};
+
+&cryptobam {
+    num-channels = <4>;
+    qcom,num-ees = <2>;
+
+    status = "okay";
+};
+
+&crypto {
+    status = "okay";
+};
+
+&blsp1_uart1 {
+    status = "okay";
+    pinctrl-0 = <&serial_0_pins>;
+    pinctrl-names = "default";
+};
+
+&blsp1_uart2 {
+    status = "okay";
+    pinctrl-0 = <&serial_1_pins>;
+    pinctrl-names = "default";
+
+    bluetooth {
+        compatible = "csr,8811";
+
+        enable-gpios = <&tlmm 32 GPIO_ACTIVE_HIGH>;
+    };
+};
+
+&blsp1_spi2 {
+    pinctrl-0 = <&spi_1_pins>;
+    pinctrl-names = "default";
+    status = "okay";
+
+    cs-gpios = <&tlmm 45 GPIO_ACTIVE_HIGH>;
+
+    zigbee@0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        compatible = "silabs,em3581";
+        reg = <0>;
+        spi-max-frequency = <12000000>;
+    };
+};
+
+&blsp1_i2c3 {
+    pinctrl-0 = <&i2c_0_pins>;
+    pinctrl-names = "default";         
+    
+    status = "okay";
+
+    // RGB LEDs
+    pca9633: led-controller {
+        compatible = "nxp,pca9633";                
+        nxp,hw-blink;
+        reg = <0x62>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        led_red: red@0 {
+            label = "red";
+            color = <LED_COLOR_ID_RED>;
+            function = LED_FUNCTION_INDICATOR;
+            linux,default-trigger = "none";
+            reg = <0>;
+        };
+
+        led_green: green@1 {
+            label = "green";
+            color = <LED_COLOR_ID_GREEN>;
+            function = LED_FUNCTION_INDICATOR;
+            linux,default-trigger = "none";
+            reg = <1>;
+        };
+
+        led_blue: blue@2 {
+            label = "blue";
+            color = <LED_COLOR_ID_BLUE>;
+            function = LED_FUNCTION_INDICATOR;
+            linux,default-trigger = "default-on";
+            reg = <2>;
+        };
+    };
+};
+
+&usb3_ss_phy {
+    status = "okay";
+};
+
+&usb3_hs_phy {
+    status = "okay";
+};
+
+&usb2_hs_phy {
+    status = "okay";
+};
+
+&nand {
+    status = "okay";
+
+    nand@0 {
+        partitions {
+            compatible = "fixed-partitions";
+            #address-cells = <1>;
+            #size-cells = <1>;
+
+            partition@0 {
+                label = "SBL1";
+                reg = <0x0 0x100000>;
+                read-only;
+            };
+
+            partition@100000 {
+                label = "MIBIB";
+                reg = <0x100000 0x100000>;
+                read-only;
+            };
+
+            partition@200000 {
+                label = "QSEE";
+                reg = <0x200000 0x100000>;
+                read-only;
+            };
+
+            partition@300000 {
+                label = "CDT";
+                reg = <0x300000 0x80000>;
+                read-only;
+            };
+
+            partition@380000 {
+                label = "APPSBL";
+                reg = <0x380000 0x200000>;
+                read-only;
+            };
+
+            partition@580000 {
+                label = "ART";
+                reg = <0x580000 0x80000>;
+                compatible = "nvmem-cells";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                read-only;
+
+                precal_art_1000: precal@1000 {
+                    reg = <0x1000 0x2f20>;
+                };
+
+                precal_art_5000: precal@5000 {
+                    reg = <0x5000 0x2f20>;
+                };
+
+                precal_art_9000: precal@9000 {
+                    reg = <0x9000 0x2f20>;
+                };
+
+                macaddr_gmac0: macaddr@0 {
+                    reg = <0x0 0x6>;
+                };
+
+                macaddr_gmac1: macaddr@6 {
+                    reg = <0x6 0x6>;
+                };
+            };
+
+            partition@600000 {
+                label = "u_env";
+                reg = <0x600000 0x80000>;
+            };
+
+            partition@680000 {
+                label = "s_env";
+                reg = <0x680000 0x40000>;
+            };
+
+            partition@6c0000 {
+                label = "devinfo";
+                reg = <0x6c0000 0x40000>;
+                read-only;
+            };
+
+            partition@700000 {
+                label = "kernel";
+                reg = <0x700000 0xa100000>;
+            };
+
+            partition@d00000 {
+                label = "rootfs";
+                reg = <0xd00000 0x9b00000>;
+            };
+
+            partition@a800000 {
+                label = "alt_kernel";
+                reg = <0xa800000 0xa100000>;
+            };
+
+            partition@ae00000 {
+                label = "alt_rootfs";
+                reg = <0xae00000 0x9b00000>;
+            };
+
+            partition@14900000 {
+                label = "sysdiag";
+                reg = <0x14900000 0x200000>;
+                read-only;
+            };
+
+            partition@14b00000 {
+                label = "syscfg";
+                reg = <0x14b00000 0xb500000>;
+                read-only;
+            };
+        };
+    };
+};
+
+&pcie0 {
+    status = "okay";
+
+    perst-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>;
+    wake-gpios = <&tlmm 40 GPIO_ACTIVE_LOW>;
+    clkreq-gpios = <&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>;
+        };
+    };
+};
+
+&qpic_bam {
+    status = "okay";
+};
+
+&gmac {
+    status = "okay";
+};
+
+&switch {
+    status = "okay";
+};
+
+&swport4 {
+    status = "okay";
+    label = "lan";
+
+    nvmem-cell-names = "mac-address";
+    nvmem-cells = <&macaddr_gmac1>;
+};
+
+&swport5 {
+    status = "okay";
+    label = "wan";
+
+    nvmem-cell-names = "mac-address";
+    nvmem-cells = <&macaddr_gmac0>;
+};
+
+&wifi0 {
+    pinctrl-0 = <&wifi_0_pins>;
+    pinctrl-names = "default";
+
+    status = "okay";
+
+    qcom,coexist-support = <1>;
+    qcom,coexist-gpio-pin = <0x34>;
+
+    ieee80211-freq-limit = <2401000 2473000>;
+    qcom,ath10k-calibration-variant = "linksys-whw03v2";
+
+    nvmem-cell-names = "pre-calibration", "mac-address";
+    nvmem-cells = <&precal_art_1000>, <&macaddr_gmac0>;
+    mac-address-increment = <1>;
+};
+
+&wifi1 {
+    status = "okay";
+    
+    ieee80211-freq-limit = <5170000 5250000>;
+    qcom,ath10k-calibration-variant = "linksys-whw03v2";
+    
+    nvmem-cell-names = "pre-calibration", "mac-address";
+    nvmem-cells = <&precal_art_5000>, <&macaddr_gmac0>;
+    mac-address-increment = <2>;
+};
+
+&wifi2 {
+    status = "okay";
+
+    ieee80211-freq-limit = <5735000 5835000>;
+    qcom,ath10k-calibration-variant = "linksys-whw03v2";
+
+    nvmem-cell-names = "pre-calibration", "mac-address";
+    nvmem-cells = <&precal_art_9000>, <&macaddr_gmac0>;
+    mac-address-increment = <3>;
+};
diff --git a/target/linux/ipq40xx/image/generic.mk b/target/linux/ipq40xx/image/generic.mk
index aa013e8e61..dcf0cb20aa 100644
--- a/target/linux/ipq40xx/image/generic.mk
+++ b/target/linux/ipq40xx/image/generic.mk
@@ -720,6 +720,23 @@ define Device/linksys_mr8300
 endef
 TARGET_DEVICES += linksys_mr8300
 
+define Device/linksys_whw03v2
+	$(call Device/FitzImage)
+	DEVICE_VENDOR := Linksys
+	DEVICE_MODEL := WHW03
+	DEVICE_VARIANT := V2
+	SOC := qcom-ipq4019
+	KERNEL_SIZE := 6144k
+	IMAGE_SIZE := 158720k
+	BLOCKSIZE := 128k
+	PAGESIZE := 2048
+	UBINIZE_OPTS := -E 5    # EOD marks to "hide" factory sig at EOF
+	IMAGES += factory.bin
+	IMAGE/factory.bin  := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi | linksys-image type=WHW03v2
+	DEVICE_PACKAGES := ath10k-firmware-qca9888-ct ipq-wifi-linksys_whw03v2 kmod-leds-pca963x kmod-spi-dev kmod-bluetooth
+endef
+TARGET_DEVICES += linksys_whw03v2
+
 define Device/linksys_whw01
 	$(call Device/FitzImage)
 	DEVICE_VENDOR := Linksys