bcm63xx: add support for Technicolor TG582n Telecom Italia branded

Technicolor TG582n Telecom Italia branded a.k.a.
Telecom Italia ADSL2+ Wi-Fi N (AGTWI)
has the same PCB as the unbranded Technicolor TG582n with LEDs
connected to different GPIO PINs in active low configuration and
different LED names. It has a PCB similar to the OpenWrt's ADB P.DG A4001N1 one.

Hardware:
* Board ID: DANT-V
* SoC: Broadcom BCM6328 (rev b0) @ 320MHz, CPU BMIPS4350
* RAM DDR2: 64 Mbyte - EtronTech EM68B16CWQD-25H
* Serial flash: 16 Mbyte - Spansion FL 128SAIF00
* Ethernet: 4x Ethernet 10/100 baseT
* Wifi 2.4GHz: Broadcom Corporation BCM43227 Wireless Network Adapter (rev 30)
* LEDs: 2x Power, 1x ADSL, 2x Internet, 2x Wi-Fi, 2x Service, 4x ethernet
* Buttons: 1x Reset, 1x WPS (named WiFi/LED)
* UART: 1x TTL 115200n8, VCC GND TX RX, on J3 connector (short R62 and R63)

Installation via CFE:
* Stock CFE has to be overwritten with a generic 6328 one that can upload
  .bin images with no signature check (cfe6328_configured.bin)
* Connect a serial port to the board
* Stop the CFE boot process after power on by pressing enter
* Set static IP 192.168.2.10 and subnet mask 255.255.255.0
* Navigate to http://192.168.2.50/
* Upload the OpenWrt image file

PCB:   |GPIO:   |TG582n:          |AGTWI:

LED2R  |488(08) |red    Power     |red   Power
LED2G  |484(04) |green  Power     |green Power

LED10R |486(06) |                 |missing R85 end LED
LED13G |485(05) |green  Ethernet  |green ADSL

LED11R |494(14) |                 |red   Internet
LED14G |491(11) |green  Broadband |green Internet

LED5R  |487(07) |red    Internet  |red   Wi-Fi
LED5G  |481(01) |green  Internet  |green Wi-Fi

LED12R |498(18) |                 |red   Service
LED12G |499(19) |                 |green Service

LED6R  |482(02) |red    Wi-Fi     |missing R108 end LED
LED6G  |483(03) |green  Wi-Fi     |missing R107 end LED

LED7R  |490(10) |red    WPS       |missing R91 end LED
LED7G  |489(09) |green  WPS       |missing R92 end LED

LED4   |508(28) |ethernet port 4  |ethernet port 4
LED3   |507(27) |ethernet port 3  |ethernet port 3

LED9   |506(26) |ethernet port 2  |ethernet port 2
LED8   |505(25) |ethernet port 1  |ethernet port 1

SW3    |503(23) |key Reset        |key Reset

SW5    |504(24) |key WPS          |key Wi-Fi/LED

SW4    |495(15) |key Wi-Fi        |missing R127 end key

SW6    |493(13) |                 |missing R171 end key

SW1    |492(12) |                 |missing R1 end key

Signed-off-by: Daniele Castro <danielecastro@hotmail.it>
[DT fixes, base-files fixes and device variant]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 153 insertions, 0 deletions

diff --git a/target/linux/bcm63xx/dts/bcm6328-technicolor-tg582n-telecom-italia.dts b/target/linux/bcm63xx/dts/bcm6328-technicolor-tg582n-telecom-italia.dts
new file mode 100644
index 0000000000..0dfa38e474
--- /dev/null
+++ b/target/linux/bcm63xx/dts/bcm6328-technicolor-tg582n-telecom-italia.dts
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+#include "bcm6328.dtsi"
+
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Technicolor TG582n Telecom Italia";
+	compatible = "technicolor,tg582n-telecom-italia", "brcm,bcm6328";
+
+	aliases {
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_green;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_green;
+	};
+
+	chosen {
+		bootargs = "rootfstype=squashfs,jffs2 noinitrd console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&pinctrl 23 1>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&pinctrl 24 1>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&leds {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_leds>;
+
+	led@1 {
+		reg = <1>;
+		active-low;
+		label = "green:wifi";
+	};
+
+	led_power_green: led@4 {
+		reg = <4>;
+		active-low;
+		label = "green:power";
+		default-state = "on";
+	};
+
+	led@5 {
+		reg = <5>;
+		active-low;
+		label = "green:adsl";
+	};
+
+	led@7 {
+		reg = <7>;
+		active-low;
+		label = "red:wifi";
+	};
+
+	led@8 {
+		reg = <8>;
+		active-low;
+		label = "red:power";
+	};
+
+	led@11 {
+		reg = <11>;
+		active-low;
+		label = "green:internet";
+	};
+
+	led@14 {
+		reg = <14>;
+		active-low;
+		label = "red:internet";
+	};
+
+	led@18 {
+		reg = <18>;
+		active-low;
+		label = "red:service";
+	};
+
+	led@19 {
+		reg = <19>;
+		active-low;
+		label = "green:service";
+	};
+};
+
+&hsspi {
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <16666667>;
+		spi-tx-bus-width = <2>;
+		spi-rx-bus-width = <2>;
+		reg = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				reg = <0x000000 0x010000>;
+				label = "cfe";
+				read-only;
+			};
+
+			partition@10000 {
+				reg = <0x010000 0xff0000>;
+				label = "linux";
+				compatible = "brcm,bcm963xx-imagetag";
+			};
+		};
+	};
+};
+
+&pinctrl {
+	pinctrl_leds: leds {
+		function = "led";
+		pins = "gpio1", "gpio4",
+		       "gpio5", "gpio7",
+		       "gpio8", "gpio11",
+		       "gpio14", "gpio18",
+		       "gpio19";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};