ARM: dts: amlogic: Add TCU Fernsehfee 3.0

Fernsehfee[1] ("TV fairy") 3.0 is a set-top box with HDMI input and
output ports. It originally ran Android 4.4 and a Linux 3.10 kernel.

The following features are tested and known to work:

- Ethernet
- Power LED (switching between green and red)
- Power button
- eMMC
- SD Card
- USB
- Wifi

The following features are untested or not working:

- HDMI input and output
- Infrared remote control input and output

[1]: https://fernsehfee.de/ (German), https://telefairy.com/ (English)

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20250428-fernsehfee-v2-3-293b98a43a91@posteo.net
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm/boot/dts/amlogic/Makefile b/arch/arm/boot/dts/amlogic/Makefile
index 504c533b1173298ec7f45099888d88b2fb74b978..3c8a1e88b386cd7fb9b5f41f47d7ff78fe7eeacc 100644 (file)
--- a/arch/arm/boot/dts/amlogic/Makefile
+++ b/arch/arm/boot/dts/amlogic/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_MACH_MESON8) += \
        meson8-minix-neo-x8.dtb \
+       meson8-fernsehfee3.dtb \
        meson8b-ec100.dtb \
        meson8b-mxq.dtb \
        meson8b-odroidc1.dtb \

diff --git a/arch/arm/boot/dts/amlogic/meson8-fernsehfee3.dts b/arch/arm/boot/dts/amlogic/meson8-fernsehfee3.dts
new file mode 100644 (file)
index 0000000..3f9e2e5
--- /dev/null
+++ b/arch/arm/boot/dts/amlogic/meson8-fernsehfee3.dts
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+// Copyright (C) 2025 J. Neuschäfer <j.ne@posteo.net>
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/leds/common.h>
+
+#include "meson8.dtsi"
+
+/ {
+       model = "Fernsehfee 3.0";
+       compatible = "tcu,fernsehfee3", "amlogic,meson8";
+
+       aliases {
+               serial0 = &uart_AO;
+               gpiochip0 = &gpio;
+               gpiochip1 = &gpio_ao;
+               i2c0 = &i2c_AO;
+               i2c1 = &i2c_B;
+               mmc0 = &sdhc;
+               mmc1 = &sdio;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x40000000>;  /* 1 GiB */
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys-polled";
+               poll-interval = <100>;
+
+               power-button {
+                       label = "Power button";
+                       linux,code = <KEY_POWER>;
+                       gpios = <&gpio_ao GPIOAO_3 GPIO_ACTIVE_LOW>;
+               };
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               led-0 {
+                       /*
+                        * The power LED can be turned red, otherwise it is green.
+                        */
+                       gpios = <&gpio_ao GPIO_TEST_N GPIO_ACTIVE_LOW>;
+                       function = LED_FUNCTION_POWER;
+                       color = <LED_COLOR_ID_RED>;
+               };
+       };
+
+       vcc_5v: regulator-5v {
+               /* 5V rail, always on as long as the system is running */
+               compatible = "regulator-fixed";
+               regulator-name = "5V";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+       };
+
+       vcc_3v3: regulator-3v3 {
+               /* Chipown AP2420 step-down converter */
+               compatible = "regulator-fixed";
+               regulator-name = "3.3V";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vcc_5v>;
+       };
+
+       wifi_3v3: regulator-wifi {
+               compatible = "regulator-fixed";
+               regulator-name = "3.3V-WIFI";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&vcc_3v3>;
+               gpio = <&gpio GPIOX_11 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+};
+
+&ethmac {
+       status = "okay";
+       pinctrl-0 = <&eth_pins>;
+       pinctrl-names = "default";
+       phy-handle = <&eth_phy0>;
+       phy-mode = "rmii";
+
+       mdio {
+               compatible = "snps,dwmac-mdio";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               eth_phy0: ethernet-phy@0 {
+                       /* IC Plus IP101A (0x02430c54) */
+                       reg = <0>;
+
+                       reset-assert-us = <10000>;
+                       reset-deassert-us = <10000>;
+                       reset-gpios = <&gpio GPIOH_4 GPIO_ACTIVE_LOW>;
+               };
+       };
+};
+
+&i2c_AO {
+       status = "okay";
+       pinctrl-0 = <&i2c_ao_pins>;
+       pinctrl-names = "default";
+
+       pmic@32 {
+               compatible = "ricoh,rn5t618";
+               reg = <0x32>;
+               system-power-controller;
+       };
+
+       eeprom@50 {
+               /* Fairchild FM24C08A */
+               compatible = "atmel,24c08";
+               reg = <0x50>;
+               pagesize = <16>;
+               wp-gpios = <&gpio GPIOH_3 GPIO_ACTIVE_HIGH>;
+               num-addresses = <4>;
+       };
+};
+
+&i2c_B {
+       status = "okay";
+       pinctrl-0 = <&i2c_b_pins>;
+       pinctrl-names = "default";
+
+       /* TODO: SiI9293 HDMI receiver @ 0x39 */
+};
+
+&sdhc {
+       status = "okay";
+       pinctrl-0 = <&sdxc_c_pins>;
+       pinctrl-names = "default";
+
+       /* eMMC */
+       bus-width = <8>;
+       max-frequency = <100000000>;
+
+       disable-wp;
+       cap-mmc-highspeed;
+       mmc-hs200-1_8v;
+       no-sdio;
+
+       vmmc-supply = <&vcc_3v3>;
+       vqmmc-supply = <&vcc_3v3>;
+};
+
+&sdio {
+       status = "okay";
+       pinctrl-0 = <&sd_b_pins>;
+
+       /* SD card */
+       slot@1 {
+               compatible = "mmc-slot";
+               reg = <1>;
+               status = "okay";
+
+               bus-width = <4>;
+               cap-mmc-highspeed;
+               cap-sd-highspeed;
+               disable-wp;
+
+               cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_LOW>;
+
+               vmmc-supply = <&vcc_3v3>;
+       };
+};
+
+&uart_AO {
+       status = "okay";
+       pinctrl-0 = <&uart_ao_a_pins>;
+       pinctrl-names = "default";
+};
+
+&usb0 {
+       status = "okay";
+};
+
+&usb0_phy {
+       status = "okay";
+};
+
+&usb1 {
+       status = "okay";
+       dr_mode = "host";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       wifi: wifi@1 {
+               /* Realtek RTL8188 2.4GHz WiFi module */
+               compatible = "usbbda,179";
+               reg = <1>;
+               vdd-supply = <&wifi_3v3>;
+       };
+};
+
+&usb1_phy {
+       status = "okay";
+};
+
+&ir_receiver {
+       status = "okay";
+       pinctrl-0 = <&ir_recv_pins>;
+       pinctrl-names = "default";
+};

diff --git a/arch/arm/boot/dts/amlogic/meson8.dtsi b/arch/arm/boot/dts/amlogic/meson8.dtsi
index 7fe0c7d3ee6ec19dbde18dbb69cec3c800a7c0e7..b9d9e5b3bce3ac970fc12a4ccf56f536310cc10a 100644 (file)
--- a/arch/arm/boot/dts/amlogic/meson8.dtsi
+++ b/arch/arm/boot/dts/amlogic/meson8.dtsi
@@ -481,6 +481,14 @@
                        gpio-ranges = <&pinctrl_cbus 0 0 120>;
                };
 
+               i2c_b_pins: i2c-b {
+                       mux {
+                               groups = "i2c_sda_b", "i2c_sck_b";
+                               function = "i2c_b";
+                               bias-disable;
+                       };
+               };
+
                sd_a_pins: sd-a {
                        mux {
                                groups = "sd_d0_a", "sd_d1_a", "sd_d2_a",
@@ -526,6 +534,16 @@
                        };
                };
 
+               sdxc_c_pins: sdxc-c {
+                       mux {
+                               groups = "sdxc_d0_c", "sdxc_d13_c",
+                                       "sdxc_clk_c", "sdxc_cmd_c",
+                                       "sdxc_d47_c";
+                               function = "sdxc_c";
+                               bias-pull-up;
+                       };
+               };
+
                spdif_out_pins: spdif-out {
                        mux {
                                groups = "spdif_out";