ipq40xx: add support for FritzBox 7530

Hardware
--------
CPU:   Qualcomm IPQ4019
RAM:   256M
FLASH: 128M NAND
ETH:   QCA8075
VDSL:  Intel/Lantiq VRX518 PCIe attached
       currently not supported
DECT:  Dialog SC14448
       currently not supported
WiFi2: IPQ4019 2T2R 2SS b/g/n
WiFi5: IPQ4019 2T2R 2SS n/ac
LED:    - Power/DSL green
        - WLAN green
        - FON/DECT green
        - Connect/WPS green
        - Info green
        - Info red
BTN:    - WLAN
        - FON
        - WPS/Connect
UART:  115200n8 3.3V (located under the Dialog chip)
       VCC - RX - TX - GND (Square is VCC)

Installation
------------
1. Grab the uboot for the Device from the 'u-boot-fritz7530'
   subdirectory. Place it in the same directory as the 'eva_ramboot.py'
   script. It is located in the 'scripts/flashing' subdirectory of the
   OpenWRT tree.

2. Assign yourself the IP address 192.168.178.10/24. Connect your
   Computer to one of the boxes LAN ports.

3. Connect Power to the Box. As soon as the LAN port of your computer
   shows link, load the U-Boot to the box using following command.

   > ./eva_ramboot.py --offset 0x85000000 192.168.178.1 uboot-fritz7530.bin

4. The U-Boot will now start. Now assign yourself the IP address
   192.168.1.70/24. Copy the OpenWRT initramfs (!) image to a TFTP
   server root directory and rename it to 'FRITZ7530.bin'.

5. The Box will now boot OpenWRT from RAM. This can take up to two
   minutes.

6. Copy the U-Boot and the OpenWRT sysupgrade (!) image to the Box using
   scp. SSH into the Box and first write the Bootloader to both previous
   kernel partitions.

   > mtd write /path/to/uboot-fritz7530.bin uboot0
   > mtd write /path/to/uboot-fritz7530.bin uboot1

7. Remove the AVM filesystem partitions to make room for our kernel +
   rootfs + overlayfs.

   > ubirmvol /dev/ubi0 --name=avm_filesys_0
   > ubirmvol /dev/ubi0 --name=avm_filesys_1

8. Flash OpenWRT peristently using sysupgrade.

   > sysupgrade -n /path/to/openwrt-sysupgrade.bin

Signed-off-by: David Bauer <mail@david-bauer.net>
[removed pcie-dts range node, refreshed on top of AP120-AC/E2600AC]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

1 files changed, 304 insertions, 0 deletions

diff --git a/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts b/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts
new file mode 100644
index 0000000000..53f83f411b
--- /dev/null
+++ b/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4019-fritzbox-7530.dts
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "qcom-ipq4019.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/soc/qcom,tcsr.h>
+
+/ {
+	model = "AVM FRITZ!Box 7530";
+	compatible = "avm,fritzbox-7530";
+
+	aliases {
+		led-boot = &power_green;
+		led-failsafe = &info_red;
+		led-running = &power_green;
+		led-upgrade = &info_green;
+	};
+
+	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 {
+			compatible = "qcom,tcsr";
+			reg = <0x194b000 0x100>;
+			qcom,usb-hsphy-mode-select = <TCSR_USB_HSPHY_HOST_MODE>;
+		};
+
+		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>;
+		};
+
+		usb3@8af8800 {
+			status = "okay";
+		};
+
+		crypto@8e3a000 {
+			status = "okay";
+		};
+
+		watchdog@b017000 {
+			status = "okay";
+		};
+
+		ess-switch@c000000 {
+			status = "okay";
+		};
+
+		edma@c080000 {
+			status = "okay";
+			qcom,num_gmac = <1>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		wlan {
+			label = "wlan";
+			gpios = <&tlmm 42 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RFKILL>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&tlmm 41 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+		};
+
+		dect {
+			label = "dect";
+			gpios = <&tlmm 43 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_PHONE>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		info_red: info_red {
+			label = "fritzbox-7530:red:info";
+			gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
+		};
+
+		info_green: info {
+			label = "fritzbox-7530:green:info";
+			gpios = <&tlmm 33 GPIO_ACTIVE_LOW>;
+		};
+
+		wlan {
+			label = "fritzbox-7530:green:wlan";
+			gpios = <&tlmm 34 GPIO_ACTIVE_LOW>;
+		};
+
+		fon {
+			label = "fritzbox-7530:green:fon";
+			gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
+		};
+
+		power_green: power {
+			label = "fritzbox-7530:green:power";
+			gpios = <&tlmm 39 GPIO_ACTIVE_LOW>;
+		};
+
+		wps {
+			label = "fritzbox-7530:green:wps";
+			gpios = <&tlmm 45 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&tlmm {
+	serial_0_pins: serial_pinmux {
+		mux {
+			pins = "gpio16", "gpio17";
+			function = "blsp_uart0";
+			bias-disable;
+		};
+	};
+
+	nand_pins: nand_pins {
+		pullups {
+			pins = "gpio53", "gpio58", "gpio59";
+			function = "qpic";
+			bias-pull-up;
+		};
+
+		pulldowns {
+			pins = "gpio54", "gpio55", "gpio56",
+				"gpio57", "gpio60", "gpio61",
+				"gpio62", "gpio63", "gpio64",
+				"gpio65", "gpio66", "gpio67",
+				"gpio68", "gpio69";
+			function = "qpic";
+			bias-pull-down;
+		};
+	};
+
+	usb-power {
+		line-name = "enable USB3 power";
+		gpios = <49 GPIO_ACTIVE_HIGH>;
+		gpio-hog;
+		output-high;
+	};
+};
+
+&nand {
+	pinctrl-0 = <&nand_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	cs-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
+
+	nand@0 {
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "SBL1";
+				reg = <0x000000 0x80000>;
+				read-only;
+			};
+
+			partition@80000 {
+				label = "MIBIB";
+				reg = <0x080000 0x80000>;
+				read-only;
+			};
+
+			partition@100000 {
+				label = "QSEE";
+				reg = <0x100000 0x80000>;
+				read-only;
+			};
+
+			partition@180000 {
+				label = "CDT";
+				reg = <0x180000 0x40000>;
+				read-only;
+			};
+
+			partition@1c0000 {
+				label = "QSEE_B";
+				reg = <0x1c0000 0x80000>;
+				read-only;
+			};
+
+			partition@240000 {
+				label = "urlader0";
+				reg = <0x240000 0x40000>;
+				read-only;
+			};
+
+			partition@280000 {
+				label = "urlader1";
+				reg = <0x280000 0x40000>;
+				read-only;
+			};
+
+			partition@2c0000 {
+				label = "nand-tffs";
+				reg = <0x2c0000 0x840000>;
+				read-only;
+			};
+
+			partition@b00000 {
+				/* 'kernel1' in AVM firmware */
+				label = "uboot0";
+				reg = <0xb00000 0x400000>;
+			};
+
+			partition@f00000 {
+				/* 'kernel2' in AVM firmware */
+				label = "uboot1";
+				reg = <0xf00000 0x400000>;
+			};
+
+			partition@1300000 {
+				label = "ubi";
+				reg = <0x1300000 0x6d00000>;
+			};
+		};
+	};
+};
+
+&cryptobam {
+	status = "okay";
+};
+
+&blsp_dma {
+	status = "okay";
+};
+
+&blsp1_uart1 {
+	pinctrl-0 = <&serial_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&usb3_ss_phy {
+	status = "okay";
+};
+
+&usb3_hs_phy {
+	status = "okay";
+};
+
+&qpic_bam {
+	status = "okay";
+};
+
+&wifi0 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "AVM-FRITZBox-7530";
+};
+
+&wifi1 {
+	status = "okay";
+	qcom,ath10k-calibration-variant = "AVM-FRITZBox-7530";
+};
+
+&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;
+
+		dsl@1,0 {
+			compatible = "intel,vrx518";
+			status = "okay";
+			reg = <0x00010000 0 0 0 0>;
+		};
+	};
+};