ipq40xx: add support for Plasma Cloud PA1200

Device specifications:

* QCA IPQ4018
* 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=16,variant=PlasmaCloud-PA1200
* 2T2R 5 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=17,variant=PlasmaCloud-PA1200
* 3x GPIO-LEDs for status (cyan, purple, yellow)
* 1x GPIO-button (reset)
* 1x USB (xHCI)
* TTL pins are on board (arrow points to VCC, then follows: GND, TX, RX)
* 2x gigabit ethernet
  - phy@mdio4:
    + Label: Ethernet 1
    + gmac0 (ethaddr) in original firmware
    + used as LAN interface
  - phy@mdio3:
    + Label: Ethernet 2
    + gmac1 (eth1addr) in original firmware
    + 802.3af/at POE(+)
    + used as WAN interface
* 12V/24V 1A 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>

7 files changed, 222 insertions, 3 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 86787eeffd..b9e79c3b68 100755
--- a/target/linux/ipq40xx/base-files/etc/board.d/02_network
+++ b/target/linux/ipq40xx/base-files/etc/board.d/02_network
@@ -17,7 +17,8 @@ ipq40xx_setup_interfaces()
 	alfa-network,ap120c-ac|\
 	engenius,emr3500|\
 	engenius,ens620ext|\
-	luma,wrtq-329acn)
+	luma,wrtq-329acn|\
+	plasmacloud,pa1200)
 		ucidef_set_interfaces_lan_wan "eth0" "eth1"
 		;;
 	aruba,ap-303|\
diff --git a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index f33d3f331c..ade0d74341 100644
--- a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -101,6 +101,7 @@ case "$FIRMWARE" in
 	luma,wrtq-329acn|\
 	openmesh,a42 |\
 	openmesh,a62 |\
+	plasmacloud,pa1200 |\
 	qxwlan,e2600ac-c1 |\
 	qxwlan,e2600ac-c2 |\
 	unielec,u4019-32m)
@@ -198,6 +199,7 @@ case "$FIRMWARE" in
 	luma,wrtq-329acn|\
 	openmesh,a42 |\
 	openmesh,a62 |\
+	plasmacloud,pa1200 |\
 	qxwlan,e2600ac-c1 |\
 	qxwlan,e2600ac-c2 |\
 	unielec,u4019-32m)
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/dualboot_datachk.sh b/target/linux/ipq40xx/base-files/lib/upgrade/dualboot_datachk.sh
index 807a85d43c..60886071c9 100644
--- a/target/linux/ipq40xx/base-files/lib/upgrade/dualboot_datachk.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/dualboot_datachk.sh
@@ -44,6 +44,7 @@ platform_do_upgrade_dualboot_datachk() {
 	# boot anymore to Linux until it was reflashed with ap51-flash.
 	local next_boot_part="1"
 	case "$(board_name)" in
+	plasmacloud,pa1200|\
 	openmesh,a42)
 		primary_kernel_mtd=8
 		;;
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
index 0fbce92f3b..22e9ffe114 100644
--- a/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ipq40xx/base-files/lib/upgrade/platform.sh
@@ -111,7 +111,8 @@ platform_do_upgrade() {
 		nand_do_upgrade "$1"
 		;;
 	openmesh,a42 |\
-	openmesh,a62)
+	openmesh,a62 |\
+	plasmacloud,pa1200)
 		PART_NAME="inactive"
 		platform_do_upgrade_dualboot_datachk "$1"
 		;;
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-pa1200.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-pa1200.dts
new file mode 100644
index 0000000000..bcb9552ce7
--- /dev/null
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4018-pa1200.dts
@@ -0,0 +1,197 @@
+// 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 PA1200";
+	compatible = "plasmacloud,pa1200";
+
+	soc {
+		rng@22000 {
+			status = "okay";
+		};
+
+		mdio@90000 {
+			status = "okay";
+		};
+
+		ess-psgmii@98000 {
+			status = "okay";
+		};
+
+		tcsr@194b000 {
+			/* select hostmode */
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+			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>;
+		};
+
+		usb2: usb2@60f8800 {
+			status = "okay";
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 59 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	aliases {
+		led-boot = &led_status_purple;
+		led-failsafe = &led_status_yellow;
+		led-running = &led_status_cyan;
+		led-upgrade = &led_status_yellow;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_cyan: status_cyan {
+			label = "cyan:status";
+			gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_status_purple: status_purple {
+			label = "purple:status";
+			gpios = <&tlmm 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		led_status_yellow: status_yellow {
+			label = "yellow:status";
+			gpios = <&tlmm 2 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+};
+
+&tlmm {
+	serial_pins: serial_pinmux {
+		mux {
+			pins = "gpio60", "gpio61";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	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 {
+		#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 = <4>;
+	qcom,poll_required = <1>;
+	qcom,forced_speed = <1000>;
+	qcom,forced_duplex = <1>;
+	vlan_tag = <2 0x20>;
+};
+
+&gmac1 {
+	qcom,phy_mdio_addr = <3>;
+	qcom,poll_required = <1>;
+	qcom,forced_speed = <1000>;
+	qcom,forced_duplex = <1>;
+	vlan_tag = <1 0x10>;
+};
+
+&usb2_hs_phy {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "PlasmaCloud-PA1200";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "PlasmaCloud-PA1200";
+};
diff --git a/target/linux/ipq40xx/image/Makefile b/target/linux/ipq40xx/image/Makefile
index b3f2d1f755..b0fde22813 100644
--- a/target/linux/ipq40xx/image/Makefile
+++ b/target/linux/ipq40xx/image/Makefile
@@ -648,6 +648,22 @@ define Device/openmesh_a62
 endef
 TARGET_DEVICES += openmesh_a62
 
+define Device/plasmacloud_pa1200
+	$(call Device/FitImageLzma)
+	DEVICE_VENDOR := Plasma Cloud
+	DEVICE_MODEL := PA1200
+	SOC := qcom-ipq4018
+	DEVICE_DTS_CONFIG := config@pc.pa1200
+	BLOCKSIZE := 64k
+	KERNEL = kernel-bin | lzma | fit lzma $$(DTS_DIR)/$$(DEVICE_DTS).dtb | pad-to $$(BLOCKSIZE)
+	IMAGE_SIZE := 15616k
+	IMAGES += factory.bin
+	IMAGE/factory.bin := append-rootfs | pad-rootfs | openmesh-image ce_type=PA1200
+	IMAGE/sysupgrade.bin/squashfs := append-rootfs | pad-rootfs | sysupgrade-tar rootfs=$$$$@ | append-metadata
+	DEVICE_PACKAGES := uboot-envtools ipq-wifi-plasmacloud-pa1200
+endef
+TARGET_DEVICES += plasmacloud_pa1200
+
 define Device/qcom_ap-dk01.1-c1
 	DEVICE_VENDOR := Qualcomm Atheros
 	DEVICE_MODEL := AP-DK01.1
diff --git a/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch b/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
index 06dd135a59..8d725ebf9e 100644
--- a/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
+++ b/target/linux/ipq40xx/patches-5.4/901-arm-boot-add-dts-files.patch
@@ -10,7 +10,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 
 --- a/arch/arm/boot/dts/Makefile
 +++ b/arch/arm/boot/dts/Makefile
-@@ -837,11 +837,54 @@ dtb-$(CONFIG_ARCH_QCOM) += \
+@@ -837,11 +837,55 @@ dtb-$(CONFIG_ARCH_QCOM) += \
  	qcom-apq8074-dragonboard.dtb \
  	qcom-apq8084-ifc6540.dtb \
  	qcom-apq8084-mtp.dtb \
@@ -31,6 +31,7 @@ Signed-off-by: John Crispin <john@phrozen.org>
 +	qcom-ipq4018-meshpoint-one.dtb \
 +	qcom-ipq4018-nbg6617.dtb \
 +	qcom-ipq4019-oap100.dtb \
++	qcom-ipq4018-pa1200.dtb \
 +	qcom-ipq4018-rt-ac58u.dtb \
 +	qcom-ipq4018-wre6606.dtb \
 +	qcom-ipq4018-wrtq-329acn.dtb \