ipq40xx: add support for Cell C RTL30VW

Cell C RTL30VW is a LTE router with tho gigabit ethernets and integrated
QMI mPCIE modem.

This is stripped version of ASKEY RTL0030VW.

Hardware:

Specification:
-CPU: IPQ4019
-RAM: 256MB
-Flash: NAND 128MB + NOR 16MB
-WiFi: Integrated bgn/ac
-LTE: mPCIe card (Modem chipset MDM9230)
-LAN: 2 Gigabit Ports
-USB: 2x USB2.0
-Serial console: RJ-45 115200 8n1
-Unsupported VoIP

Known issues:

None so far.

Instruction install:

There are two methods: Factory web-gui and serial + tftp.

Web-gui:
1. Apply factory image via stock web-gui.

Serial + initramfs:
1. Rename OpenWrt initramfs image to "image"
2. Connect serial console (115200,8n1)
3. Set IP to different than 192.168.1.11, but 24 bit mask, eg. 192.168.1.4.

4. U-Boot commands:
sf probe && sf read 0x80000000 0x180000 0x10000
setenv serverip 192.168.1.4
set fdt_high 0x85000000
tftpboot 0x84000000 image
bootm 0x84000000

5. Install sysupgrade image via "sysupgrade -n"

Back to stock:

All is needed is swap 0x4c byte in mtd8 from 0 to 1 or 1 to 0,
do firstboot and factory reset with OFW:

1. read mtd8:
dd if=/dev/mtd8 of=/tmp/mtd8
2. go to tmp:
cd /tmp/
3. write first part of partition:
dd if=mtd8 of=mtd8.new bs=1 count=76
4. check which layout uses bootloader:
cat /proc/mtd
5a. If first are kernel_1 and rootfs_1 write 0:
echo -n -e '\x00' >> mtd8.new
5b. If first are kernel and rootfs write 1:
echo -n -e '\x01' >> mtd8.new
6. fill with rest of data:
dd if=mtd8 bs=1 skip=77 >> mtd8.new
7. CHECK IF mtd8.new HAVE CHANGED ONLY ONE BYTE! e.g with:
hexdump mtd8.new
8. write new mtd8 to flash:
mtd write mtd8.new /dev/mtd8
9. do firstboot
10.reboot
11. Do back to factory defaults in OFW GUI.

Based on work: Cezary Jackiewicz <cezary@eko.one.pl>

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>

1 files changed, 385 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files-5.4/arch/arm/boot/dts/qcom-ipq4019-rtl30vw.dts b/target/linux/ipq40xx/files-5.4/arch/arm/boot/dts/qcom-ipq4019-rtl30vw.dts
new file mode 100644
index 0000000000..2f17424e55
--- /dev/null
+++ b/target/linux/ipq40xx/files-5.4/arch/arm/boot/dts/qcom-ipq4019-rtl30vw.dts
@@ -0,0 +1,385 @@
+// SPDX-License-Identifier: ISC
+// Copyright (c) 2015, The Linux Foundation. All rights reserved.
+// Copyright (c) 2019, Cezary Jackiewicz <cezary@eko.one.pl>.
+// Copyright (c) 2020, Pawel Dembicki <paweldembicki@gmail.com>.
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/soc/qcom,tcsr.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Cell C RTL30VW";
+	compatible = "cellc,rtl30vw";
+
+	aliases {
+		led-boot = &led_power_blue;
+		led-failsafe = &led_power_red;
+		led-running = &led_power_blue;
+		led-upgrade = &led_power_red;
+	};
+
+	chosen {
+		bootargs-append = "ubi.mtd=ubifs root=/dev/ubiblock0_0 rootfstype=squashfs ro";
+	};
+
+	led_spi {
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		num-chipselects = <1>;
+
+		mosi-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+		cs-gpios = <&tlmm 4 GPIO_ACTIVE_LOW>;
+		sck-gpios = <&tlmm 58 GPIO_ACTIVE_LOW>;
+
+		led_gpio: led_gpio@0 {
+			compatible = "fairchild,74hc595";
+			reg = <0>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			registers-number = <2>;
+			spi-max-frequency = <1000000>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power_blue: power_blue {
+			gpios = <&led_gpio 0 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:power";
+			default-state = "on";
+		};
+
+		led_power_red: power_red {
+			gpios = <&led_gpio 1 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:red:power";
+		};
+
+		tp28 {
+			gpios = <&led_gpio 6 GPIO_ACTIVE_LOW>;
+			label = "rtl30vw:ext:tp28";
+			default-state = "keep";
+		};
+
+		tp27 {
+			gpios = <&led_gpio 7 GPIO_ACTIVE_LOW>;
+			label = "rtl30vw:ext:tp27";
+			default-state = "keep";
+		};
+
+		wlan2g {
+			gpios = <&led_gpio 8 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:wlan2g";
+			linux,default-trigger = "phy0tpt";
+		};
+
+		wlan5g {
+			gpios = <&led_gpio 9 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:wlan5g";
+			linux,default-trigger = "phy1tpt";
+		};
+
+		wps {
+			gpios = <&led_gpio 10 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:wps";
+		};
+
+		voip {
+			gpios = <&led_gpio 11 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:voip";
+		};
+
+		s1 {
+			gpios = <&led_gpio 12 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:s1";
+		};
+
+		s2 {
+			gpios = <&led_gpio 13 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:s2";
+		};
+
+		s3 {
+			gpios = <&led_gpio 14 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:s3";
+		};
+
+		s4 {
+			gpios = <&led_gpio 15 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:blue:s4";
+		};
+
+		signal {
+			gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
+			label = "rtl30vw:red:signal";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&tlmm 5 GPIO_ACTIVE_LOW>;
+		};
+
+		reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&tlmm 63 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	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>;
+		};
+
+		tcsr@194b000 {
+			/* select hostmode */
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+			status = "okay";
+		};
+
+		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@60f8800 {
+			status = "okay";
+		};
+
+		usb3@8af8800 {
+			status = "okay";
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+		};
+	};
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&blsp1_spi1 {
+	pinctrl-0 = <&spi_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>, <&tlmm 59 GPIO_ACTIVE_HIGH>;
+
+	flash@0 {
+		/*"n25q128a11" is required for proper nand recognition in u-boot. */
+		compatible = "jedec,spi-nor", "n25q128a11";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		spi-max-frequency = <24000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "0:SBL1";
+				reg = <0x0 0x40000>;
+				read-only;
+			};
+
+			partition@40000 {
+				label = "0:MIBIB";
+				reg = <0x40000 0x20000>;
+				read-only;
+			};
+
+			partition@60000 {
+				label = "0:QSEE";
+				reg = <0x60000 0x60000>;
+				read-only;
+				};
+
+			partition@c0000 {
+				label = "0:CDT";
+				reg = <0xc0000 0x10000>;
+				read-only;
+			};
+
+			partition@d0000 {
+				label = "0:DDRPARAMS";
+				reg = <0xd0000 0x10000>;
+				read-only;
+			};
+
+			partition@e0000 {
+				label = "0:APPSBLENV";
+				reg = <0xe0000 0x10000>;
+				read-only;
+			};
+
+			partition@f0000 {
+				label = "0:APPSBL";
+				reg = <0xf0000 0x80000>;
+				read-only;
+			};
+
+			partition@170000 {
+				label = "0:ART";
+				reg = <0x170000 0x10000>;
+				read-only;
+			};
+
+			partition@180000 {
+				label = "0:BOOTCONFIG";
+				reg = <0x180000 0x10000>;
+				read-only;
+			};
+		};
+	};
+
+	flash@1 {
+		/*
+		 * Factory U-boot looks in 0:BOOTCONFIG partition for active
+		 * partitions settings and mangle partition config. So kernel
+		 * /kernel_1 and rootfs/rootfs_1 pairs can be swaped.
+		 * It isn't a problem but we never can be sure where OFW put
+		 * factory images. "spinand,mt29f" value is required for proper
+		 * nand recognition in u-boot.
+		 */
+		compatible = "spi-nand","spinand,mt29f";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <1>;
+		spi-max-frequency = <24000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "kernel";
+				reg = <0x0 0x400000>;
+			};
+
+			partition@400000 {
+				label = "rootfs";
+				reg = <0x400000 0x2000000>;
+			};
+
+			partition@2400000 {
+				label = "kernel_1";
+				reg = <0x2400000 0x400000>;
+			};
+
+			partition@2800000 {
+				label = "rootfs_1";
+				reg = <0x2800000 0x2000000>;
+			};
+
+			partition@4800000 {
+				label = "ubifs";
+				reg = <0x4800000 0x3800000>;
+			};
+		};
+	};
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&tlmm {
+	serial_pins: serial_pinmux {
+		mux {
+			pins = "gpio60", "gpio61";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	spi_0_pins: spi_0_pinmux {
+		pinmux {
+			function = "blsp_spi0";
+			pins = "gpio55", "gpio56", "gpio57";
+			drive-strength = <12>;
+			bias-disable;
+		};
+
+		pinmux_cs {
+			function = "gpio";
+			pins = "gpio54", "gpio59";
+			drive-strength = <2>;
+			bias-disable;
+			output-high;
+		};
+	};
+};
+
+&usb2_hs_phy {
+	status = "okay";
+};
+
+&usb3_ss_phy {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "cellc,rtl30vw";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "cellc,rtl30vw";
+};