ipq40xx: add support for EZVIZ CS-W3-WD1200G EUP

Hardware:
SOC:    Qualcomm IPQ4018
RAM:	128 MB Nanya NT5CC64M16GP-DI
FLASH:  16 MB Macronix MX25L12805D
ETH:    Qualcomm QCA8075 (4 Gigabit ports, 3xLAN, 1xWAN)
WLAN:   Qualcomm IPQ4018 (2.4 & 5 Ghz)
BUTTON: Shared WPS/Reset button
LED:    RGB Status/Power LED
SERIAL: Header J8 (UART, Left side of board). Numbered from
        top to bottom:
        (1) GND, (2) TX, (3) RX, (4) VCC (White triangle
        next to it).
        3.3v, 115200, 8N1

Tested/Working:
* Ethernet
* WiFi (2.4 and 5GHz)
* Status LED
* Reset Button (See note below)

Implementation notes:
* The shared WPS/Reset button is implemented as a Reset button
* I could not find a original firmware image to reverse engineer, meaning
currently it's not possible to flash OpenWrt through the Web GUI.

Installation (Through Serial console & TFTP):
1. Set your PC to fixed IP 192.168.1.12, Netmask 255.255.255.0, and connect to
one of the LAN ports
2. Rename the initramfs image to 'C0A8010B.img' and enable a TFTP server on
your pc, to serve the image
2. Connect to the router through serial (See connection properties above)
3. Hit a key during startup, to pause startup
4. type `setenv serverip 192.168.1.12`, to set the tftp server address
5. type `tftpboot`, to load the image from the laptop through tftp
6. type `bootm` to run the loaded image from memory
6. (If you want to return to stock firmware later, create an full MTD backup,
e.g. using instructions here https://openwrt.org/docs/guide-user/installation/generic.backup#create_full_mtd_backup)
7. Transfer the 'sysupgrade' OpenWrt firmware image from PC to router, e.g.:
`scp xxx-squashfs-sysupgrade.bin root@192.168.1.1:/tmp/upgrade.bin`
8. Run sysupgrade to permanently install OpenWrt to flash: `sysupgrade -n /tmp/upgrade.bin`

Revert to stock:
To revert to stock, you need the MTD backup from step 6 above:
1. Unpack the MTD backup archive
2. Transfer the 'firmware' partition image to the router (e.g. mtd8_firmware.backup)
3. On the router, do `mtd write mtd8_firmware.backup firmware`

Signed-off-by: Tom Brouwer <tombrouwer@outlook.com>
[removed BOARD_NAME, OpenWRT->OpenWrt, changed LED device name to board name]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

1 files changed, 242 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4018-cs-w3-wd1200g-eup.dts b/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4018-cs-w3-wd1200g-eup.dts
new file mode 100644
index 0000000000..d8b9e7ef13
--- /dev/null
+++ b/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4018-cs-w3-wd1200g-eup.dts
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0 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>
+
+/ {
+	model = "EZVIZ CS-W3-WD1200G EUP";
+	compatible = "ezviz,cs-w3-wd1200g-eup";
+
+	aliases {
+		led-boot = &led_status_green;
+		led-failsafe = &led_status_red;
+		led-running = &led_status_blue;
+		led-upgrade = &led_status_green;
+	};
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		mdio@90000 {
+			status = "okay";
+			pinctrl-0 = <&mdio_pins>;
+			pinctrl-names = "default";
+			reset-gpios = <&tlmm 59 GPIO_ACTIVE_LOW>;
+			reset-delay-us = <5000>;
+		};
+
+		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>;
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_red: status_red {
+			label = "cs-w3-wd1200g-eup:red:status";
+			gpios = <&tlmm 0 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_green: status_green {
+			label = "cs-w3-wd1200g-eup:green:status";
+			gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;
+		};
+
+		led_status_blue: status_blue {
+			label = "cs-w3-wd1200g-eup:blue:status";
+			gpios = <&tlmm 58 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 63 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+};
+
+&tlmm {
+	serial_pins: serial_pinmux {
+		mux {
+			pins = "gpio60", "gpio61";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	mdio_pins: mdio_pinmux {
+		mux_1 {
+			pins = "gpio53";
+			function = "mdio";
+			bias-pull-up;
+		};
+
+		mux_2 {
+			pins = "gpio52";
+			function = "mdc";
+			bias-pull-up;
+		};
+	};
+
+	spi_0_pins: spi_0_pinmux {
+		pin {
+			function = "blsp_spi0";
+			pins = "gpio55", "gpio56", "gpio57";
+			drive-strength = <12>;
+			bias-disable;
+		};
+		pin_cs {
+			function = "gpio";
+			pins = "gpio54";
+			drive-strength = <2>;
+			bias-disable;
+			output-high;
+		};
+	};
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&blsp1_spi1 {
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <24000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition0@0 {
+				label = "SBL1";
+				reg = <0x00000000 0x00040000>;
+				read-only;
+			};
+
+			partition1@40000 {
+				label = "MIBIB";
+				reg = <0x00040000 0x00020000>;
+				read-only;
+			};
+
+			partition2@60000 {
+				label = "QSEE";
+				reg = <0x00060000 0x00060000>;
+				read-only;
+			};
+
+			partition3@c0000 {
+				label = "CDT";
+				reg = <0x000c0000 0x00010000>;
+				read-only;
+			};
+
+			partition4@d0000 {
+				label = "DDRPARAMS";
+				reg = <0x000d0000 0x00010000>;
+				read-only;
+			};
+
+			partition5@E0000 {
+				label = "APPSBLENV";
+				reg = <0x000e0000 0x00010000>;
+				read-only;
+			};
+
+			partition6@F0000 {
+				label = "APPSBL";
+				reg = <0x000f0000 0x00080000>;
+				read-only;
+			};
+
+			partition7@170000 {
+				label = "ART";
+				reg = <0x00170000 0x00010000>;
+				read-only;
+			};
+
+			partition9@580000 {
+				compatible = "denx,fit";
+				label = "firmware";
+				reg = <0x00180000 0x00e80000>;
+			};
+		};
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ezviz-cs-w3-wd1200g-eup";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ezviz-cs-w3-wd1200g-eup";
+};