IMX8mp uboot splash on generic native LVDS panel on LVDS1 - again

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IMX8mp uboot splash on generic native LVDS panel on LVDS1 - again

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ufnguru
Contributor I

I need to support Uboot splash screen on a native LVDS panel connected to LVDS1 on the EVK.

I applied the patches in: https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Add-i-MX8MP-LVDS-driver-in-uboot/ta-p/14...

Those appear to be for a panel connected via the bridge, will this work for a NATIVE LVDS panel with no bridge?

Our panel WORKS under Linux with the following device tree source:

#include "imx8mp-evk.dts"

/ {
lvds1_panel {
compatible = "panel-lvds";
status = "okay";
backlight = <&lvds_backlight>;
data-mapping = "vesa-24";
width-mm = <216>;
height-mm = <135>;
panel-timing {
clock-frequency = <72400000>;
hactive = <1280>;
vactive = <800>;
hback-porch = <80>;
hfront-porch = <48>;
vback-porch = <3>;
vfront-porch = <29>;
hsync-len = <1>;
vsync-len = <6>;
};

port {
panel1_lvds_in: endpoint {
remote-endpoint = <&lvds1_out>;
};
};
};
};

&ldb {
status = "okay";

lvds-channel@1 {
fsl,data-mapping = "spwg";
fsl,data-width = <24>;
status = "okay";

port@1 {
reg = <1>;

lvds1_out: endpoint {
remote-endpoint = <&panel1_lvds_in>;
};
};
};
};

What should my Uboot device tree source look like to support displaying a splash image on our native LVDS panel on LVDS1?

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425 Views
ufnguru
Contributor I

Which Env variable?

What should my Uboot device tree source look like to support displaying a splash image on our native LVDS panel on LVDS1? Should I change "compatible" to "simple-panel"?

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432 Views
Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hello,

You must activate with the Env variable in uboot.

Regards

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