ipq40xx: add support for ZyXEL WRE6606

Specifications:
SOC:	Qualcomm IPQ4018 (DAKOTA) ARM Quad-Core
RAM:	128 MB Nanya NT5CC64M16GP-DI
FLASH:	16 MiB Macronix MX25L12845EMI-12G
ETH:	Qualcomm QCA8072
WLAN1:  Qualcomm Atheros QCA4018 2.4GHz 802.11b/g/n 2x2
WLAN2:  Qualcomm Atheros QCA4018 5GHz 802.11n/ac W2 2x2
INPUT:  WPS, Mode-toggle-switch
LED:	Power, WLAN 2.4GHz, WLAN 5GHz, LAN, WPS
        (LAN not controllable by software)
        (WLAN each green / red)
SERIAL:	Header next to eth-phy.
        VCC, TX, GND, RX (Square hole is VCC)
        The Serial setting is 115200-8-N-1.

Tested and working:
 - Ethernet (Correct MAC-address)
 - 2.4 GHz WiFi (Correct MAC-address)
 - 5 GHz WiFi (Correct MAC-address)
 - Factory installation from tftp
 - OpenWRT sysupgrade
 - LEDs
 - WPS Button

Not Working:
 - Mode-toggle-switch

Install via TFTP:

Connect to the devices serial. Hit Enter-Key in bootloader to stop
autobooting. Command `tftpboot` will pull an initramfs image named
`C0A86302.img` from a tftp server at `192.168.99.08/24`.
After successfull transfer, boot the image with `bootm`.

To persistently write the firmware, flash an openwrt sysupgrade image
from inside the initramfs, for example transfer
via `scp <sysupgrade> root@192.168.1.1:/tmp` and flash on the device
with `sysupgrade -n /tmp/<sysupgrade>`.

append-cmdline patch taken from chunkeeys work on the NBG6617.

Signed-off-by: Magnus Frühling <skorpy@frankfurt.ccc.de>
Co-authored-by: David Bauer <mail@david-bauer.net>
Co-authored-by: Christian Lamparter <chunkeey@googlemail.com>
(cherry picked from commit 4b280ad91a6b155ac71c417aaa7bb5f4e328712f)

1 files changed, 261 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4018-wre6606.dts b/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4018-wre6606.dts
new file mode 100644
index 0000000000..89315365e7
--- /dev/null
+++ b/target/linux/ipq40xx/files-4.14/arch/arm/boot/dts/qcom-ipq4018-wre6606.dts
@@ -0,0 +1,261 @@
+/* Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2018, David Bauer <mail@david-bauer.net>
+ *
+ * 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 = "ZyXEL WRE6606";
+	compatible = "zyxel,wre6606", "qcom,ipq4019";
+
+	aliases {
+		led-boot = &power;
+		led-failsafe = &power;
+		led-running = &power;
+		led-upgrade = &power;
+	};
+
+	chosen {
+		bootargs-append = " mtdparts=";
+	};
+
+	soc {
+		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>;
+		};
+
+		serial@78af000 {
+			pinctrl-0 = <&serial_pins>;
+			pinctrl-names = "default";
+			status = "okay";
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+			qcom,num_gmac = <1>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		wps {
+			label = "wre6606:green:wps";
+			gpios = <&tlmm 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan5g_green {
+			label = "wre6606:green:wlan5g";
+			gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
+		};
+
+		power: power {
+			label = "wre6606:green:power";
+			gpios = <&tlmm 4 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan5g_red {
+			label = "wre6606:red:wlan5g";
+			gpios = <&tlmm 5 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan2g_red {
+			label = "wre6606:red:wlan2g";
+			gpios = <&tlmm 58 GPIO_ACTIVE_HIGH>;
+		};
+
+		wlan2g_green {
+			label = "wre6606:green:wlan2g";
+			gpios = <&tlmm 59 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "wps";
+			gpios = <&tlmm 63 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+	};
+};
+
+&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;
+		};
+	};
+};
+
+&spi_0 {
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+
+	mx25l12805d@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;
+			};
+
+			partition8@180000 {
+				label = "firmware";
+				reg = <0x00180000 0x00ce0000>;
+			};
+
+			partition9@e60000 {
+				label = "manufacture";
+				reg = <0x00e60000 0x00050000>;
+				read-only;
+			};
+
+			partition10@eb0000 {
+				label = "storage";
+				reg = <0x00eb0000 0x00150000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ZyXEL-WRE6606";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "ZyXEL-WRE6606";
+};