ipq806x: add support for Arris TR4400 v2 / RAC2V1A

Hardware specs:
  SoC: Qualcomm IPQ8065 (dual core Cortex-A15)
  RAM: 512 MB DDR3
  Flash: 256 MB NAND, 32 MB NOR
  WiFi: QCA9983 2.4 GHz, QCA9984 5 GHz
  Switch: QCA8337
  Ethernet: 5x 10/100/1000 Mbit/s
  USB: 1x USB 3.0 Type-A
  Buttons: WPS, Reset
  Power: 12 VDC, 2.5 A

Ethernet ports:
  1x WAN: connected to eth2
  4x LAN: connected via the switch to eth0 and eth1
          (eth0 is disabled in OEM firmware)

MAC addresses (OEM and OpenWrt):
  fw_env @ 0x00  d4:ab:82:??:??:?a  LAN (eth1)
  fw_env @ 0x06  d4:ab:82:??:??:?b  WAN (eth2)
  fw_env @ 0x0c  d4:ab:82:??:??:?c  WLAN 2.4 GHz (ath1)
  fw_env @ 0x12  d4:ab:82:??:??:?d  WLAN 5 GHz (ath0)
  fw_env @ 0x18  d4:ab:82:??:??:?e  OEM usage unknown (eth0 in OpenWrt)

  OID d4:ab:82 is registered to:
  ARRIS Group, Inc., 6450 Sequence Drive, San Diego CA 92121, US

More info:
  https://openwrt.org/inbox/toh/arris/tr4400_v2

IMPORTANT:

This port requires moving the 'fw_env' partition prior to first boot to
consolidate 70% of the usable space in flash into a contiguous partition.
'fw_env' contains factory-programmed MAC addresses, SSIDs, and passwords.
Its contents must be copied to 'rootfs_1' prior to booting via initramfs.
Note that the stock 'fw_env' partition  will be wiped during sysupgrade.

A writable 'stock_fw_env' partition pointing to the old, stock location
is included in the port to help rolling back this change if desired.

Installation:

- Requires serial access and a TFTP server.
- Fully boot stock, press ENTER, type in:
mtd erase /dev/mtd21
dd if=/dev/mtd22 bs=128K count=1 | mtd write - /dev/mtd21
umount /config && ubidetach -m 23 && mtd erase /dev/mtd23
- Reboot and interrupt U-Boot by pressing a key, type in:
set mtdids 'nand0=nand0'
set mtdparts 'mtdparts=nand0:155M@0x6500000(mtd_ubi)'
set bootcmd 'ubi part mtd_ubi && ubi read 0x44000000 kernel && bootm'
env save
- Setup TFTP server serving initramfs image as 'recovery.bin', type in:
set ipaddr 192.168.1.1
set serverip 192.168.1.2
tftpboot recovery.bin && bootm
- Use sysupgrade to install squashfs image.

This port is based on work done by AmadeusGhost <amadeus@jmu.edu.cn>.

Signed-off-by: Rodrigo Balerdi <lanchon@gmail.com>
[add 5.15 changes for 0069-arm-boot-add-dts-files.patch]
Signed-off-by: Sungbo Eo <mans0n@gorani.run>
(cherry picked from commit f8b0010dfb548469686049f85076fd6a3a6bca2e)

1 files changed, 425 insertions, 0 deletions

diff --git a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065-tr4400-v2.dts b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065-tr4400-v2.dts
new file mode 100644
index 0000000000..b51d7b8855
--- /dev/null
+++ b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8065-tr4400-v2.dts
@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "qcom-ipq8065.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Arris TR4400 v2";
+	compatible = "arris,tr4400-v2", "qcom,ipq8065", "qcom,ipq8064";
+
+	memory@0 {
+		reg = <0x42000000 0x1e000000>;
+		device_type = "memory";
+	};
+
+	aliases {
+		led-boot = &led_status_blue;
+		led-failsafe = &led_status_red;
+		led-running = &led_status_blue;
+		led-upgrade = &led_status_red;
+	};
+
+	chosen {
+		bootargs = "rootfstype=squashfs noinitrd";
+	};
+
+	keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&button_pins>;
+		pinctrl-names = "default";
+
+		reset {
+			label = "reset";
+			gpios = <&qcom_pinmux 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+			wakeup-source;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&qcom_pinmux 54 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+			wakeup-source;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&led_pins>;
+		pinctrl-names = "default";
+
+		led_status_red: status_red {
+			label = "red:status";
+			gpios = <&qcom_pinmux 7 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_status_blue: status_blue {
+			label = "blue:status";
+			gpios = <&qcom_pinmux 8 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&qcom_pinmux {
+	button_pins: button_pins {
+		mux {
+			pins = "gpio6", "gpio54";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	led_pins: led_pins {
+		mux {
+			pins = "gpio7", "gpio8";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+	};
+
+	rgmii2_pins: rgmii2_pins {
+		tx {
+			pins = "gpio27", "gpio28", "gpio29", "gpio30", "gpio31", "gpio32";
+			input-disable;
+		};
+	};
+
+	spi_pins: spi_pins {
+		cs {
+			pins = "gpio20";
+			drive-strength = <12>;
+		};
+	};
+};
+
+&gsbi5 {
+	qcom,mode = <GSBI_PROT_SPI>;
+	status = "okay";
+
+	spi@1a280000 {
+		status = "okay";
+
+		pinctrl-0 = <&spi_pins>;
+		pinctrl-names = "default";
+
+		cs-gpios = <&qcom_pinmux 20 GPIO_ACTIVE_HIGH>;
+
+		flash@0 {
+			compatible = "everspin,mr25h256";
+			spi-max-frequency = <40000000>;
+			reg = <0>;
+		};
+	};
+};
+
+&nand_controller {
+	status = "okay";
+
+	pinctrl-0 = <&nand_pins>;
+	pinctrl-names = "default";
+
+	nand@0 {
+		reg = <0>;
+		compatible = "qcom,nandcs";
+
+		nand-ecc-strength = <4>;
+		nand-bus-width = <8>;
+		nand-ecc-step-size = <512>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "0:SBL1";
+				reg = <0x0000000 0x0040000>;
+				read-only;
+			};
+			partition@40000 {
+				label = "0:MIBIB";
+				reg = <0x0040000 0x0140000>;
+				read-only;
+			};
+			partition@180000 {
+				label = "0:SBL2";
+				reg = <0x0180000 0x0140000>;
+				read-only;
+			};
+			partition@2c0000 {
+				label = "0:SBL3";
+				reg = <0x02c0000 0x0280000>;
+				read-only;
+			};
+			partition@540000 {
+				label = "0:DDRCONFIG";
+				reg = <0x0540000 0x0120000>;
+				read-only;
+			};
+			partition@660000 {
+				label = "0:SSD";
+				reg = <0x0660000 0x0120000>;
+				read-only;
+			};
+			partition@780000 {
+				label = "0:TZ";
+				reg = <0x0780000 0x0280000>;
+				read-only;
+			};
+			partition@a00000 {
+				label = "0:RPM";
+				reg = <0x0a00000 0x0280000>;
+				read-only;
+			};
+			partition@c80000 {
+				label = "0:APPSBL";
+				reg = <0x0c80000 0x0500000>;
+				read-only;
+			};
+			partition@1180000 {
+				label = "0:APPSBLENV";
+				reg = <0x1180000 0x0080000>;
+			};
+			partition@1200000 {
+				label = "0:ART";
+				reg = <0x1200000 0x0140000>;
+				read-only;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				precal_ART_1000: precal@1000 {
+					reg = <0x1000 0x2f20>;
+				};
+				precal_ART_5000: precal@5000 {
+					reg = <0x5000 0x2f20>;
+				};
+			};
+			stock_partition@1340000 {
+				label = "stock_rootfs";
+				reg = <0x1340000 0x4000000>;
+			};
+			partition@5340000 {
+				label = "0:BOOTCONFIG";
+				reg = <0x5340000 0x0060000>;
+				read-only;
+			};
+			partition@53a0000 {
+				label = "0:SBL2_1";
+				reg = <0x53a0000 0x0140000>;
+				read-only;
+			};
+			partition@54e0000 {
+				label = "0:SBL3_1";
+				reg = <0x54e0000 0x0280000>;
+				read-only;
+			};
+			partition@5760000 {
+				label = "0:DDRCONFIG_1";
+				reg = <0x5760000 0x0120000>;
+				read-only;
+			};
+			partition@5880000 {
+				label = "0:SSD_1";
+				reg = <0x5880000 0x0120000>;
+				read-only;
+			};
+			partition@59a0000 {
+				label = "0:TZ_1";
+				reg = <0x59a0000 0x0280000>;
+				read-only;
+			};
+			partition@5c20000 {
+				label = "0:RPM_1";
+				reg = <0x5c20000 0x0280000>;
+				read-only;
+			};
+			partition@5ea0000 {
+				label = "0:BOOTCONFIG1";
+				reg = <0x5ea0000 0x0060000>;
+				read-only;
+			};
+			partition@5f00000 {
+				label = "0:APPSBL_1";
+				reg = <0x5f00000 0x0500000>;
+				read-only;
+			};
+			stock_partition@6400000 {
+				label = "stock_rootfs_1";
+				reg = <0x6400000 0x4000000>;
+			};
+			stock_partition@a400000 {
+				label = "stock_fw_env";
+				reg = <0xa400000 0x0100000>;
+			};
+			stock_partition@a500000 {
+				label = "stock_config";
+				reg = <0xa500000 0x0800000>;
+			};
+			stock_partition@ad00000 {
+				label = "stock_PKI";
+				reg = <0xad00000 0x0200000>;
+			};
+			stock_partition@af00000 {
+				label = "stock_scfgmgr";
+				reg = <0xaf00000 0x0100000>;
+			};
+
+			partition@6400000 {
+				label = "fw_env";
+				reg = <0x6400000 0x0100000>;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				macaddr_fw_env_0: macaddr@0 {
+					reg = <0x00 0x6>;
+				};
+				macaddr_fw_env_6: macaddr@6 {
+					reg = <0x06 0x6>;
+				};
+				macaddr_fw_env_c: macaddr@c {
+					reg = <0x0c 0x6>;
+				};
+				macaddr_fw_env_12: macaddr@12 {
+					reg = <0x12 0x6>;
+				};
+				macaddr_fw_env_18: macaddr@18 {
+					reg = <0x18 0x6>;
+				};
+			};
+			partition@6500000 {
+				label = "ubi";
+				reg = <0x6500000 0x9b00000>;
+			};
+			partition@1340000 {
+				label = "extra";
+				reg = <0x1340000 0x4000000>;
+			};
+		};
+	};
+};
+
+&mdio0 {
+	status = "okay";
+
+	pinctrl-0 = <&mdio0_pins>;
+	pinctrl-names = "default";
+
+	ethernet-phy@0 {
+		reg = <0x0>;
+		qca,ar8327-initvals = <
+			0x00004 0x7600000   /* PAD0_MODE */
+			0x00008 0x1000000   /* PAD5_MODE */
+			0x0000c 0x80        /* PAD6_MODE */
+			0x000e4 0xaa545     /* MAC_POWER_SEL */
+			0x000e0 0xc74164de  /* SGMII_CTRL */
+			0x0007c 0x4e        /* PORT0_STATUS */
+			0x00094 0x4e        /* PORT6_STATUS */
+			>;
+	};
+
+	phy7: ethernet-phy@7 {
+		reg = <7>;
+	};
+};
+
+&gmac0 {
+	status = "okay";
+	phy-mode = "rgmii";
+	qcom,id = <0>;
+
+	nvmem-cells = <&macaddr_fw_env_18>;
+	nvmem-cell-names = "mac-address";
+
+	pinctrl-0 = <&rgmii2_pins>;
+	pinctrl-names = "default";
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&gmac1 {
+	status = "okay";
+	phy-mode = "sgmii";
+	qcom,id = <1>;
+
+	nvmem-cells = <&macaddr_fw_env_0>;
+	nvmem-cell-names = "mac-address";
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&gmac3 {
+	status = "okay";
+	phy-mode = "sgmii";
+	qcom,id = <3>;
+	phy-handle = <&phy7>;
+
+	nvmem-cells = <&macaddr_fw_env_6>;
+	nvmem-cell-names = "mac-address";
+};
+
+&adm_dma {
+	status = "okay";
+};
+
+&usb3_1 {
+	status = "okay";
+};
+
+&pcie0 {
+	status = "okay";
+	reset-gpio = <&qcom_pinmux 3 GPIO_ACTIVE_HIGH>;
+	pinctrl-0 = <&pcie0_pins>;
+	pinctrl-names = "default";
+
+	bridge@0,0 {
+		reg = <0x00000000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi0: wifi@1,0 {
+			compatible = "pci168c,0046";
+			reg = <0x00010000 0 0 0 0>;
+
+			nvmem-cells = <&precal_ART_1000>, <&macaddr_fw_env_12>;
+			nvmem-cell-names = "pre-calibration", "mac-address";
+		};
+	};
+};
+
+&pcie1 {
+	status = "okay";
+	reset-gpio = <&qcom_pinmux 48 GPIO_ACTIVE_HIGH>;
+	pinctrl-0 = <&pcie1_pins>;
+	pinctrl-names = "default";
+	max-link-speed = <1>;
+
+	bridge@0,0 {
+		reg = <0x00000000 0 0 0 0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		ranges;
+
+		wifi1: wifi@1,0 {
+			compatible = "pci168c,0040";
+			reg = <0x00010000 0 0 0 0>;
+
+			nvmem-cells = <&precal_ART_5000>, <&macaddr_fw_env_c>;
+			nvmem-cell-names = "pre-calibration", "mac-address";
+		};
+	};
+};