ipq40xx: add support for Compex WPJ428

* QCA IPQ4028
* 256 MB of RAM
* 32 MB of SPI NOR flash (mx25l25635e)
* 128 MB of SPI NAND flash (gd5f1gq4ucy1g)
* 2T2R 2.4 GHz
  - QCA4019 hw1.0 (SoC)
  - uses AP-DK03 BDF from QCA4019/hw1.0/board-2.bin
* 2T2R 5 GHz
  - QCA4019 hw1.0 (SoC)
  - uses AP-DK03 BDF from QCA4019/hw1.0/board-2.bin
* 2 fully software controllable GPIO-LEDs
* 2 additional GPIO-LEDs which also affect the SIM card detection
* 1x button (reset)
* 1x GPIO buzzer
* 1x USB (xHCI)
* 1x NGFF (USB-only with Dual-SIM support, untested)
* TTL pins are on board (R124 is next to GND, then follows: RX, TX, VCC)
* 2x gigabit ethernet
  - phy@mdio4:
    + Manual: Ethernet port 0
    + gmac0 (ethaddr) in original firmware
    + 802.3af POE (HV version)
    + 24v passive POE (LV version)
  - phy@mdio3:
    + Manual: Ethernet port 1
    + gmac1 (eth1addr) in original firmware
* DC Jack connector
  + 24-56V (HV version)
  + 12-24V (LV version)

The SPI NAND flash isn't supported at the moment.

The bootloader has to be updated before OpenWrt is installed to fix a
reboot problem. The nor-ipq40xx-single.img from
https://downloads.compex.com.sg/?dir=uploads/QSDK/QCA-Reference/WPJ428/b170123-IPQ40xx-Reference-Firmware
has to be downloaded and the transfered in u-boot via TFTP

  set ipaddr 192.168.1.11
  set serverip 192.168.1.10
  ping ${serverip}
  tftpboot 0x84000000 nor-ipq40xx-single.img
  imgaddr=0x84000000 && source $imgaddr:script

The sysupgrade image can be installed directly on flash using u-boot:

  sf probe
  tftpboot 0x84000000 openwrt-ipq40xx-compex_wpj428-squashfs-sysupgrade.bin
  sf erase 0x00180000 +$filesize
  sf write 0x84000000 0x00180000 $filesize
  bootipq

The initramfs image can be started using

  tftpboot 0x82000000 openwrt-ipq40xx-compex_wpj428-initramfs-fit-uImage.itb
  set fdt_high 0x83000000
  bootm 0x82000000

The used SIM card slot can be changed using

  # slot 1 (also enables orange LED)
  echo 1 > /sys/class/gpio/gpio3/value
  # slot 2
  echo 0 > /sys/class/gpio/gpio3/value

It can be checked whether a SIM card is inserted in the current slot and
the red LED is subsequently on via:

  echo 2 > /sys/class/gpio/export
  cat /sys/class/gpio/gpio2/value

Signed-off-by: Sven Eckelmann <sven@narfation.org>

1 files changed, 270 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4028-wpj428.dts b/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4028-wpj428.dts
new file mode 100644
index 0000000000..746b289e3b
--- /dev/null
+++ b/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4028-wpj428.dts
@@ -0,0 +1,270 @@
+/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017, Christian Mehlis <christian@m3hlis.de>
+ * Copyright (c) 2017-2018, Sven Eckelmann <sven.eckelmann@openmesh.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "qcom-ipq4019.dtsi"
+#include "qcom-ipq4019-bus.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "Compex WPJ428";
+	compatible = "compex,wpj428", "qcom,ipq4019";
+
+	soc {
+		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";
+		};
+
+		serial@78af000 {
+			pinctrl-0 = <&serial_pins>;
+			pinctrl-names = "default";
+			status = "okay";
+		};
+
+		usb3: usb3@8af8800 {
+			status = "okay";
+		};
+
+		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";
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "reset";
+			gpios = <&tlmm 63 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+		};
+	};
+
+	aliases {
+		led-boot = &status;
+		led-failsafe = &status;
+		led-upgrade = &status;
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		status: rss4 {
+			label = "wpj428:green:rss4";
+			gpios = <&tlmm 5 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		rss3 {
+			label = "wpj428:green:rss3";
+			gpios = <&tlmm 4 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+
+	beeper: beeper {
+		compatible = "gpio-beeper";
+		gpios = <&tlmm 58 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";
+};
+
+&spi_0 {
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	cs-gpios = <&tlmm 54 0>;
+
+	m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <24000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition0@0 {
+				label = "0:SBL1";
+				reg = <0x00000000 0x00040000>;
+				read-only;
+			};
+			partition1@40000 {
+				label = "0:MIBIB";
+				reg = <0x00040000 0x00020000>;
+				read-only;
+			};
+			partition2@60000 {
+				label = "0:QSEE";
+				reg = <0x00060000 0x00060000>;
+				read-only;
+			};
+			partition3@c0000 {
+				label = "0:CDT";
+				reg = <0x000c0000 0x00010000>;
+				read-only;
+			};
+			partition4@d0000 {
+				label = "0:DDRPARAMS";
+				reg = <0x000d0000 0x00010000>;
+				read-only;
+			};
+			partition5@e0000 {
+				label = "0:APPSBLENV"; /* uboot env*/
+				reg = <0x000e0000 0x00010000>;
+				read-only;
+			};
+			partition5@f0000 {
+				label = "0:APPSBL"; /* uboot */
+				reg = <0x000f0000 0x00080000>;
+				read-only;
+			};
+			partition5@170000 {
+				label = "0:ART";
+				reg = <0x00170000 0x00010000>;
+				read-only;
+			};
+			partition6@180000 {
+				label = "firmware";
+				reg = <0x00180000 0x01e80000>;
+			};
+		};
+	};
+};
+
+&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>;
+};
+
+&usb3_ss_phy {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&usb2_hs_phy {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+};
+
+&wifi1 {
+	status = "okay";
+};