Genio 510/700-EVK

This page provides board-specific information on the display interfaces of the Genio 700-EVK. For common display and compositor information, please visit the Display page.

Important

All the bash commands shown here are based on Genio 700-EVK. For Genio 510-EVK, users can follow the same step to do the whole setup with changing the naming term from 700 to 510.

Display Interfaces on Genio 510/700-EVK

IoT Yocto supports four display interfaces on Genio 510/700-EVK:

• DSI0 with DSI Panel STARTEK KD070FHFID015 on Genio 700-EVK and DSI Panel STARTEK KD070FHFID078 on Genio 510-EVK

• HDMI

• DisplayPort(DP) through USB Type-C port

• Embedded Display Port(eDP) with eDP Panel AUO G156han03

• DSI0 to LVDS with LVDS Panel KOE TX18D204VM0BAA

The display system has two different pipelines - VDOSYS0 and VDOSYS1 - that can be used for any of the dual display combinations. These pipelines are abstracted as different crtc in the DRM framework.

VDOSYS0 provides 3840x2160, 30Hz refresh rate, and VDOSYS1 provides 3840x2160, 60Hz refresh rate.

Default rity-demo-image enables dual display DSI and HDMI. Other display combinations can be enabled by loading the device tree overlay during the flash programming process.

G510/G700 EVK Display Ports

top view without DSI panel installed (showing eDP, HDMI, DPoC)	top view with DSI panel installed	bottom view with DSI panel installed (showing DSI0, DSI1)

Note

• DSI1 port (LCM2) is still not supported on IoT Yocto in v23.2.

• The LVDS connector shares the same data lanes with the DSI0 connector, so only one of them can be used at the same time.

Lists of Display Device Tree Overlay

Here are lists of all available display combination device tree overlays and description link of each one:

Default Display

dtbo	Description
No need dtbo	DSI0 + HDMI

Headless Device Tree Overlay

dtbo	Description
display-headless.dtbo	Headless

Single Display Device Tree Overlays

dtbo	Description
display-dsi.dtbo	DSI0
display-dsi2lvds.dtbo	DSI0 to LVDS
display-edp.dtbo	eDP
display-hdmi.dtbo	HDMI
display-dp.dtbo	DP

Dual Display Device Tree Overlays

dtbo	Description
display-dsiedp.dtbo	DSI0 + eDP
display-dsidp.dtbo	DSI0 + DP
display-lvdsedp.dtbo	LVDS + eDP
display-lvdshdmi.dtbo	LVDS + HDMI
display-lvdsdp.dtbo	LVDS + DP
display-edphdmi.dtbo	eDP + HDMI
display-edpdp.dtbo	eDP + DP
display-hdmidp.dtbo	HDMI + DP

DSI0 + HDMI

DSI0 + HDMI are the default dual display interfaces for the prebuilt rity-demo-image. A DSI panel is pre-connected to G510/G700 EVK.

To restore the device tree setting back to the default device tree of the Genio 510/700-EVK board, flash the board with:

genio-flash -i rity-demo-image

Note

• gpu-mali.dtbo is needed for showing Weston Desktop. If gpu-mali.dtbo is not loaded, a text-based user interface would be seen.

• In v23.2 gpu-mali.dtbo and video.dtbo are be default loaded when flashing with genio-flash. No extra --load-dtbo needed for gpu-mali.dtbo.

After boot into the console you can use modeprint mediatek command to check if both DSI0 and HDMI ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 95x151 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1200x1920" 1200x1920 60
Connector: HDMI-A-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for DSI0, and 4K(3840 x 2160) with 60Hz refresh rate for HDMI.

Headless

Headless means that Yocto works without enabling any physical display connector. There is a virtual display at /dev/dri/renderD128 prepared for offline rendering.

To enable Headless, load the overlay file display-headless.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-headless.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-headless.dtbo kernel mmc0boot1

After boot into the console you will see the following error log which is because there is no physical display for Weston desktop rendering

[FAILED] Failed to start Weston, a compositor, as a system service.
See 'systemctl status weston.service' for details.

You can use modeprint mediatek command to check if headless has been properly configured by checking if connector count equals 0:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 0
count_encoders   : 0

DSI0

To enable DSI0 as the only display connector, load the overlay file display-dsi.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-dsi.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-dsi.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if DSI0 port have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 1
count_encoders   : 1
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 95x151 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1200x1920" 1200x1920 60

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for DSI0.

DSI0 to LVDS

To enable DSI0 to LVDS as the only display connector, load the overlay file display-dsi2lvds.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-dsi2lvds.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-dsi2lvds.dtbo kernel mmc0boot1

Note

• Since LVDS shares the same data lanes with DSI0, the connector seen in modeprint is DSI-1.

• For other LVDS usage in multi display device tree overlays, e.g. LVDS + eDP, the file name of dtbo should look like display-dsi2lvdsedp.dtbo, but to keep it short, we strip dsi2 from the file name, thus it becomes display-lvdsedp.dtbo. The same rule applies to other device tree overlay files supporting multi-display.

After boot into the console you can use modeprint mediatek command to check if LVDS (in DSI-1) port have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 1
count_encoders   : 1
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 87x155 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60

The associated display data pipeline can process up to FHD(1920 x 1080) with 60Hz refresh rate for LVDS.

eDP

To enable eDP as the only display connector, load the overlay file display-edp.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-edp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-edp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if eDP port have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 1
count_encoders   : 1
count_crtcs      : 2
count_fbs        : 0

Connector: eDP-1
    id             : 32
    encoder id     : 31
    conn           : connected
    size           : 340x190 (mm)
    count_modes    : 1
    count_props    : 5
    props          : 1 2 5 6 4
    count_encoders : 1
    encoders       : 31
Mode: "1920x1080" 1920x1080 60

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for eDP.

HDMI

To enable HDMI as the only display connector, load the overlay file display-hdmi.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-hdmi.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-hdmi.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if HDMI port have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 1
count_encoders   : 1
count_crtcs      : 2
count_fbs        : 0

Connector: HDMI-A-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 700x390 (mm)
        count_modes    : 39
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 4K(3840 x 2160) with 60Hz refresh rate for HDMI.

DP

To enable DP as the only display connector, load the overlay file display-dp.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-dp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-dp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if DP port have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 1
count_encoders   : 1
count_crtcs      : 2
count_fbs        : 0

Connector: DP-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 700x390 (mm)
        count_modes    : 27
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 30
...

The associated display data pipeline can process up to 4K(3840 x 2160) with 60Hz refresh rate for DP.

DSI0 + eDP

You can configure the DSI0 + eDP combination with:

genio-flash -i rity-demo-image --load-dtbo display-dsiedp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-dsiedp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both DSI0 and eDP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 95x151 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1200x1920" 1200x1920 60
Connector: eDP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 340x190 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "1920x1080" 1920x1080 60

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for DSI0, and 2.5K(2560 x 1600) with 60Hz refresh rate for eDP.

DSI0 + DP

To enable DSI0 + DP, load the dtbo file display-dsidp.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-dsidp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-dsidp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both DSI0 and DP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 95x151 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1200x1920" 1200x1920 60
Connector: DP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for DSI0, and 4K(3840 x 2160) with 60Hz refresh rate for DP.

LVDS + eDP

You can configure the LVDS + eDP combination with:

genio-flash -i rity-demo-image --load-dtbo display-lvdsedp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-lvdsedp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both LVDS (in DSI-1) and eDP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 87x155 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60
Connector: eDP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 340x190 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "1920x1080" 1920x1080 60

The associated display data pipeline can process up to FHD(1920 x 1080) with 60Hz refresh rate for LVDS, and 2.5K(2560 x 1600) with 60Hz refresh rate for eDP.

LVDS + HDMI

To enable LVDS + HDMI, load the dtbo file display-lvdshdmi.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-lvdshdmi.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-lvdshdmi.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both LVDS (in DSI-1) and HDMI ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 87x155 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60
Connector: HDMI-A-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 700x390 (mm)
        count_modes    : 39
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for LVDS, and 4K(3840 x 2160) with 60Hz refresh rate for HDMI.

LVDS + DP

To enable LVDS + DP, load the dtbo file display-lvdsdp.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-lvdsdp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-lvdsdp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both LVDS (in DSI-1) and DP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: DSI-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 87x155 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60
Connector: DP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 700x390 (mm)
        count_modes    : 27
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 30
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for LVDS, and 4K(3840 x 2160) with 60Hz refresh rate for DP.

eDP + HDMI

To enable Embedded DP and the AUO G156HAN03 panel, load the overlay file:

genio-flash -i rity-demo-image --load-dtbo display-edphdmi.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-edphdmi.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both eDP and HDMI ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: eDP-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 340x190 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60
Connector: HDMI-A-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for eDP, and 4K(3840 x 2160) with 60Hz refresh rate for HDMI.

eDP + DP

You can configure the eDP + DP combination with:

genio-flash -i rity-demo-image --load-dtbo display-edpdp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-edpdp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both eDP and DP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: eDP-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 340x190 (mm)
        count_modes    : 1
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "1920x1080" 1920x1080 60
Connector: DP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

The associated display data pipeline can process up to 2.5K(2560 x 1600) with 60Hz refresh rate for eDP, and 4K(3840 x 2160) with 60Hz refresh rate for DP.

HDMI + DP

To enable HDMI + DP, load the dtbo file display-hdmidp.dtbo during flashing process:

genio-flash -i rity-demo-image --load-dtbo display-hdmidp.dtbo

If you don’t want to re-flash the entire root file system, you can simply update the overlay configuration with:

genio-flash -i rity-demo-image --load-dtbo display-hdmidp.dtbo kernel mmc0boot1

After boot into the console you can use modeprint mediatek command to check if both HDMI and DP ports have been properly configured:

root@genio-700-evk:~# modeprint mediatek
Starting test
Resources

count_connectors : 2
count_encoders   : 2
count_crtcs      : 2
count_fbs        : 0

Connector: HDMI-A-1
        id             : 32
        encoder id     : 31
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 31
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

Connector: DP-1
        id             : 34
        encoder id     : 33
        conn           : connected
        size           : 600x340 (mm)
        count_modes    : 33
        count_props    : 5
        props          : 1 2 5 6 4
        count_encoders : 1
        encoders       : 33
Mode: "3840x2160" 3840x2160 60
Mode: "3840x2160" 3840x2160 60
...

Note

Due to the limitation of display data pipelines, the associated display data pipeline is limited to 4K(3840 x 2160) with 30Hz refresh rate for HDMI, while 4K(3840 x 2160) with 60Hz refresh rate for DP.

Hardware Setup for eDP

The prebuilt rity-demo-image supports AUO G156HAN03 panel with a eDP cable, as shown below:

Please always use this associated cable to connect to the panel. Connect either side to the Genio 510/700-EVK board and to the panel, as shown below:

Hardware Setup for DSI0 to LVDS

The prebuilt rity-demo-image supports DSI0 to IT6122 Converter Daughter Board to KOE TX18D204VM0BAA panel.

Note

• The IT6122 Converter Daughter Board doesn’t not come with the Genio 510/700-EVK set. Please contact MTK CPM to obtain one.

An example of the daughter board is shown below:

To install the daughter board, turn both the EVK and the daughter board to the back side, then replace the pre-connected DSI panel LCM0 and CTP0 cables with those on the daughter board.

Turn both the EVK and the daughter board to the front side, then connect the LVDS cable to the daughter board.

A complete setup example is provided below. Note that the DSI panel in the example is not connected to the EVK.

Related Kernel Source Files

• The Genio 700 EVK board dts file is located in the kernel path arch/arm64/boot/dts/mediatek/genio-700-evk.dts.

• The Genio 510 EVK board dts file is located in the kernel path arch/arm64/boot/dts/mediatek/genio-510-evk.dts.

• The driver for display data path and interfaces are located under the drivers/gpu/drm/mediatek, the same as other DRM drivers.

• The driver for PHY hardware are located under the drivers/phy/mediatek path, such as:

  • drivers/phy/mediatek/phy-mtk-dp.c

  • drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c

• The USB Type-C associated drivers:

  • IT5205 driver are located in drivers/usb/typec/mux/it5205fn.c

  • The MT6360 driver for USB Type-C are located in drivers/usb/typec/tcpm/tcpci_mt6360.c

Please note that the support for MT8370/MT8390 on IoT Yocto starts from mtk-v5.15 kernel and the Yocto kirkstone branch.

The device tree overlay files are not located in the kernel source. Instead, these overlay files are managed in the Yocto meta layer meta-mediatek-bsp’s kirkstone/recipes-kernel/dtbo/genio-700-evk directory.