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ARM: dts: am335x: Add Seeed Studio BeagleBone HDMI cape overlay

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Add devicetree overlay for the Seeed Studio BeagleBone HDMI cape, which
provides HDMI output via an ITE IT66121 HDMI bridge and audio support
through McASP.

The cape is designed for BeagleBone Green but is also compatible with
BeagleBone and BeagleBone Black due to pin compatibility.

Link: https://www.seeedstudio.com/Seeed-Studio-BeagleBoner-Green-HDMI-Cape.html
Signed-off-by: Kory Maincent (TI) <kory.maincent@bootlin.com>
Signed-off-by: Kevin Hilman (TI) <khilman@baylibre.com>
This commit is contained in:
Kory Maincent (TI) 2026-02-16 17:55:54 +01:00 committed by Kevin Hilman (TI)
parent 158ecce9c3
commit 2c4059f54f
2 changed files with 162 additions and 0 deletions
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5
arch/arm/boot/dts/ti/omap/Makefile
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@ -84,6 +84,10 @@ dtb-$(CONFIG_ARCH_OMAP4) += \
omap4-samsung-espresso10.dtb \
omap4-xyboard-mz609.dtb \
omap4-xyboard-mz617.dtb
am335x-bonegreen-hdmi-00a0-dtbs := am335x-bonegreen-eco.dtb \
am335x-bone-hdmi-00a0.dtbo
dtb-$(CONFIG_SOC_AM33XX) += \
am335x-baltos-ir2110.dtb \
am335x-baltos-ir3220.dtb \
@ -95,6 +99,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
am335x-bonegreen.dtb \
am335x-bonegreen-wireless.dtb \
am335x-bonegreen-eco.dtb \
am335x-bonegreen-hdmi-00a0.dtb \
am335x-chiliboard.dtb \
am335x-cm-t335.dtb \
am335x-evm.dtb \

157
arch/arm/boot/dts/ti/omap/am335x-bone-hdmi-00a0.dtso Normal file
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@ -0,0 +1,157 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* 2017 Copyright (c) Seeed Technology Inc. All right reserved.
* Author: Baozhu Zuo <zuobaozhu@gmail.com>
* Copyright (c) Bootlin 2026
*
* This device tree overlay is compatible with the BeagleBone Black, Green
* and their subversions.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/pinctrl/am33xx.h>
#include <dt-bindings/interrupt-controller/irq.h>
&{/} {
hdmi0: connector-hdmi {
compatible = "hdmi-connector";
label = "hdmi";
type = "a";
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&it66121_out>;
};
};
};
clk_mcasp0_fixed: clk-mcasp0-fixed {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <24576000>;
};
clk_mcasp0: clk-mcasp0 {
#clock-cells = <0>;
compatible = "gpio-gate-clock";
clocks = <&clk_mcasp0_fixed>;
enable-gpios = <&gpio1 27 0>;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "TI BeagleBone Green HDMI cape";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&sound_master>;
simple-audio-card,frame-master = <&sound_master>;
sound_master: simple-audio-card,cpu {
sound-dai = <&mcasp0>;
clocks = <&clk_mcasp0>;
};
simple-audio-card,codec {
sound-dai = <&it66121>;
};
};
};
&am33xx_pinmux {
bb_lcd_pins: pinmux-bb-lcd-pins {
pinctrl-single,pins = <
AM33XX_PADCONF(AM335X_PIN_LCD_DATA0, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA1, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA2, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA3, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA4, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA5, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA6, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA7, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA8, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA9, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA10, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA11, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA12, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA13, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA14, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_DATA15, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_VSYNC, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_HSYNC, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_PCLK, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_LCD_AC_BIAS_EN, PIN_OUTPUT, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_GPMC_ADVN_ALE, PIN_OUTPUT_PULLDOWN, MUX_MODE7)
AM33XX_PADCONF(AM335X_PIN_GPMC_OEN_REN, PIN_OUTPUT_PULLDOWN, MUX_MODE7)
AM33XX_PADCONF(AM335X_PIN_GPMC_WEN, PIN_INPUT, MUX_MODE7)
>;
};
mcasp0_pins: mcasp0-pins {
pinctrl-single,pins = <
AM33XX_PADCONF(AM335X_PIN_MCASP0_AHCLKX, PIN_INPUT_PULLUP, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_MCASP0_AHCLKR, PIN_OUTPUT_PULLDOWN, MUX_MODE2)
AM33XX_PADCONF(AM335X_PIN_MCASP0_FSX, PIN_OUTPUT_PULLUP, MUX_MODE0)
AM33XX_PADCONF(AM335X_PIN_MCASP0_ACLKX, PIN_OUTPUT_PULLDOWN, MUX_MODE0)
>;
};
};
&i2c2 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
it66121: it66121 {
compatible = "ite,it66121";
reg = <0x4d>;
pinctrl-names = "default";
pinctrl-0 = <&bb_lcd_pins>;
#sound-dai-cells = <0>;
interrupt-parent = <&gpio2>;
interrupts = <4 IRQ_TYPE_EDGE_RISING>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
it66121_in: endpoint {
bus-width = <24>;
remote-endpoint = <&lcdc_0>;
};
};
port@1 {
reg = <1>;
it66121_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
};
};
};
&lcdc {
status = "okay";
blue-and-red-wiring = "straight";
port {
lcdc_0: endpoint@0 {
remote-endpoint = <&it66121_in>;
};
};
};
&mcasp0 {
status = "okay";
#sound-dai-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&mcasp0_pins>;
op-mode = <0>;
tdm-slots = <2>;
serial-dir = < 0 0 1 0 >;
tx-num-evt = <32>;
rx-num-evt = <32>;
};