From: "Karl Chan" <[email protected]>
The Xiaomi Mibox 3 is a TV box based on the Amlogic S905X chipset.
There are two variants:
- 2 GiB/8GIB
- 1 GiB/4GIB
Both variants come with:
- 802.11a/b/g/n/ac wifi (BCM4345)
- HDMI , AV (CVBS) and S/PDIF optical output
- 1x USB (utilizing both USB ports provided by the SoC)
Signed-off-by: Karl Chan <[email protected]>
---
arch/arm64/boot/dts/amlogic/Makefile | 1 +
.../amlogic/meson-gxl-s905x-xiaomi-mibox3.dts | 142 ++++++++++++++++++
2 files changed, 143 insertions(+)
create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxl-s905x-xiaomi-mibox3.dts
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index ccf1ba57fa87..774e7c3638bb 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -48,6 +48,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-libretech-cc-v2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-libretech-cc.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-nexbox-a95x.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-p212.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-xiaomi-mibox3.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-gt1-ultimate.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-khadas-vim2.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-gxm-mecool-kiii-pro.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-xiaomi-mibox3.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-xiaomi-mibox3.dts
new file mode 100644
index 000000000000..2674c3a38502
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-xiaomi-mibox3.dts
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2016 Endless Computers, Inc.
+ * Author: Carlo Caione <[email protected]>
+ * Copyright (c) 2023 Karl Chan <[email protected]>
+ */
+
+/dts-v1/;
+
+#include "meson-gxl-s905x-p212.dtsi"
+#include <dt-bindings/sound/meson-aiu.h>
+
+/ {
+ compatible = "xiaomi,mibox3", "amlogic,s905x", "amlogic,meson-gxl";
+ model = "Xiaomi Mi Box 3";
+
+ dio2133: analog-amplifier {
+ compatible = "simple-audio-amplifier";
+ sound-name-prefix = "AU2";
+ VCC-supply = <&hdmi_5v>;
+ enable-gpios = <&gpio GPIOH_5 GPIO_ACTIVE_HIGH>;
+ };
+
+ cvbs-connector {
+ compatible = "composite-video-connector";
+
+ port {
+ cvbs_connector_in: endpoint {
+ remote-endpoint = <&cvbs_vdac_out>;
+ };
+ };
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_connector_in: endpoint {
+ remote-endpoint = <&hdmi_tx_tmds_out>;
+ };
+ };
+ };
+
+ sound {
+ compatible = "amlogic,gx-sound-card";
+ model = "XIAOMI-MIBOX3";
+ audio-aux-devs = <&dio2133>;
+ audio-widgets = "Line", "Lineout";
+ audio-routing = "Lineout", "AU2 OUTL",
+ "Lineout", "AU2 OUTR";
+ assigned-clocks = <&clkc CLKID_MPLL0>,
+ <&clkc CLKID_MPLL1>,
+ <&clkc CLKID_MPLL2>;
+ assigned-clock-parents = <0>, <0>, <0>;
+ assigned-clock-rates = <294912000>,
+ <270950400>,
+ <393216000>;
+ dai-link-0 {
+ sound-dai = <&aiu AIU_CPU CPU_I2S_FIFO>;
+ };
+
+ dai-link-1 {
+ sound-dai = <&aiu AIU_CPU CPU_I2S_ENCODER>;
+ dai-format = "i2s";
+ mclk-fs = <256>;
+
+ codec-0 {
+ sound-dai = <&aiu AIU_HDMI CTRL_I2S>;
+ };
+
+ codec-1 {
+ sound-dai = <&aiu AIU_ACODEC CTRL_I2S>;
+ };
+ };
+
+ dai-link-2 {
+ sound-dai = <&aiu AIU_HDMI CTRL_OUT>;
+
+ codec-0 {
+ sound-dai = <&hdmi_tx>;
+ };
+ };
+
+ dai-link-3 {
+ sound-dai = <&aiu AIU_ACODEC CTRL_OUT>;
+
+ codec-0 {
+ sound-dai = <&acodec>;
+ };
+ };
+ };
+};
+
+&acodec {
+ AVDD-supply = <&vddio_ao18>;
+ status = "okay";
+};
+
+&aiu {
+ status = "okay";
+};
+
+&cec_AO {
+ status = "okay";
+ pinctrl-0 = <&ao_cec_pins>;
+ pinctrl-names = "default";
+ hdmi-phandle = <&hdmi_tx>;
+};
+
+&cvbs_vdac_port {
+ cvbs_vdac_out: endpoint {
+ remote-endpoint = <&cvbs_connector_in>;
+ };
+};
+
+ðmac {
+ status = "disabled";
+};
+
+&hdmi_tx {
+ status = "okay";
+ pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>;
+ pinctrl-names = "default";
+ hdmi-supply = <&hdmi_5v>;
+};
+
+&hdmi_tx_tmds_port {
+ hdmi_tx_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_connector_in>;
+ };
+};
+
+/* This UART is brought out to the uart pad on the pcb*/
+&uart_AO {
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+ dr_mode = "host";
+};
--
2.40.0
Hello Karl,
On Mon, Apr 10, 2023 at 9:31 PM Karl Chan <[email protected]> wrote:
>
> From: "Karl Chan" <[email protected]>
>
> The Xiaomi Mibox 3 is a TV box based on the Amlogic S905X chipset.
I found various websites referring to this device as "Mi Box 3" (so
space between Mi and Box).
Do you know the official name that Xiaomi used?
> There are two variants:
> - 2 GiB/8GIB
> - 1 GiB/4GIB
>
> Both variants come with:
> - 802.11a/b/g/n/ac wifi (BCM4345)
> - HDMI , AV (CVBS) and S/PDIF optical output
nit-pick: no space before the comma
> - 1x USB (utilizing both USB ports provided by the SoC)
Can you please explain this in a bit more detail?
My understanding is that this board has one USB 2.0 type A port. What
do you mean by "utilizing both USB ports"?
Also I'm curious: does the board come with eMMC or (raw/parallel) NAND
flash? P212 typically means eMMC.
[...]
> +/* This UART is brought out to the uart pad on the pcb*/
nit-pick: missing space after "pcb"
Are the UART pads obvious on the board (for example since they are
labelled)? If not: maybe add a hint where to find it
[...]
> +&usb {
> + status = "okay";
> + dr_mode = "host";
> +};
This is already inherited from meson-gxl-s905x-p212.dtsi so removing
it should result in the same .dtb
Best regards,
Martin