ipq40xx: add support for Plasma Cloud PA2200

Device specifications:

* QCA IPQ4019
* 256 MB of RAM
* 32 MB of SPI NOR flash (w25q256)
  - 2x 15 MB available; but one of the 15 MB regions is the recovery image
* 2T2R 2.4 GHz
  - QCA4019 hw1.0 (SoC)
  - requires special BDF in QCA4019/hw1.0/board-2.bin with
    bus=ahb,bmi-chip-id=0,bmi-board-id=20,variant=PlasmaCloud-PA2200
* 2T2R 5 GHz (channel 36-64)
  - QCA9888 hw2.0 (PCI)
  - requires special BDF in QCA9888/hw2.0/board-2.bin
    bus=pci,bmi-chip-id=0,bmi-board-id=16,variant=PlasmaCloud-PA2200
* 2T2R 5 GHz (channel 100-165)
  - QCA4019 hw1.0 (SoC)
  - requires special BDF in QCA4019/hw1.0/board-2.bin with
    bus=ahb,bmi-chip-id=0,bmi-board-id=21,variant=PlasmaCloud-PA2200
* GPIO-LEDs for 2.4GHz, 5GHz-SoC and 5GHz-PCIE
* GPIO-LEDs for power (orange) and status (blue)
* 1x GPIO-button (reset)
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* 2x gigabit ethernet
  - phy@mdio3:
    + Label: Ethernet 1
    + gmac0 (ethaddr) in original firmware
    + used as LAN interface
  - phy@mdio4:
    + Label: Ethernet 2
    + gmac1 (eth1addr) in original firmware
    + 802.3at POE+
    + used as WAN interface
* 12V 2A DC

Flashing instructions:

The tool ap51-flash (https://github.com/ap51-flash/ap51-flash) should be
used to transfer the factory image to the u-boot when the device boots up.

Signed-off-by: Marek Lindner <marek.lindner@kaiwoo.ai>
[sven@narfation.org: prepare commit message, rebase, use all LEDs, switch
to dualboot_datachk upgrade script, use eth1 as designated WAN interface]
Signed-off-by: Sven Eckelmann <sven@narfation.org>

1 files changed, 210 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts
new file mode 100644
index 0000000000..2d0655114b
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/* Copyright (c) 2017-2020, Sven Eckelmann <sven@narfation.org>
+ * Copyright (c) 2018, Marek Lindner <marek.lindner@kaiwoo.ai>
+ */
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "Plasma Cloud PA2200";
+	compatible = "plasmacloud,pa2200";
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		mdio@90000 {
+			status = "okay";
+		};
+
+		ess-psgmii@98000 {
+			status = "okay";
+		};
+
+		tcsr@1949000 {
+			compatible = "qcom,tcsr";
+			reg = <0x1949000 0x100>;
+			qcom,wifi_glb_cfg = <TCSR_WIFI_GLB_CFG>;
+		};
+
+		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 {
+			switch_lan_bmp = <0x10>;
+			switch_wan_bmp = <0x20>;
+
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 18 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART >;
+		};
+	};
+
+	aliases {
+		led-boot = &led_power_orange;
+		led-failsafe = &led_status_blue;
+		led-running = &led_power_orange;
+		led-upgrade = &led_status_blue;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_orange: power_orange {
+			label = "orange:power";
+			gpios = <&tlmm 43 GPIO_ACTIVE_LOW>;
+		};
+
+		2g_blue {
+			label = "blue:2g";
+			gpios = <&tlmm 46 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy1tpt";
+		};
+
+		2g_green {
+			label = "green:5g1";
+			gpios = <&tlmm 47 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy0tpt";
+		};
+
+		5g2_green {
+			label = "green:5g2";
+			gpios = <&tlmm 48 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "phy2tpt";
+		};
+
+		led_status_blue: status_blue {
+			label = "blue:status";
+			gpios = <&tlmm 50 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&tlmm {
+	serial_pins: serial_pinmux {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	spi_0_pins: spi_0_pinmux {
+		pin {
+			function = "blsp_spi0";
+			pins = "gpio13", "gpio14", "gpio15";
+			drive-strength = <12>;
+			bias-disable;
+		};
+		pin_cs {
+			function = "gpio";
+			pins = "gpio12";
+			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 12 GPIO_ACTIVE_HIGH>;
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <24000000>;
+		/* partitions are passed via bootloader */
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&gmac0 {
+	qcom,phy_mdio_addr = <3>;
+	qcom,poll_required = <1>;
+	qcom,forced_speed = <1000>;
+	qcom,forced_duplex = <1>;
+	vlan_tag = <1 0x10>;
+};
+
+&pcie0 {
+	status = "okay";
+	perst-gpio = <&tlmm 38 GPIO_ACTIVE_LOW>;
+	wake-gpio = <&tlmm 50 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";
+			status = "okay";
+			reg = <0x00010000 0 0 0 0>;
+			qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
+			ieee80211-freq-limit = <5170000 5350000>;
+		};
+	};
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
+	ieee80211-freq-limit = <5470000 5875000>;
+};