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AM6548: DP display support

Genius 17000 points

Replies: 3

Views: 71

Part Number: AM6548

there is a DP convert board along with the EVM, how to output display on this port?

root@am65xx-evm:~#
weston-simple-egl
weston-simple-egl: ../weston-2.0.0/clients/simple-egl.c:890: main: Assertion `display.display' failed.
Aborted (core dumped)
root@am65xx-evm:~# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
no device found

Regards. Tony Tang
  • Hi Tony,

    Could you please share which PSDK you are using?

    Regards,
    Krunal

  • In reply to Krunal Bhargav34:

    Krunal,

    The U-boot is U-Boot 2019.01-g8b90adfb16 (Jul 07 2019 - 05:09:06 +0000)

    Linux Kernel: Linux version 4.19.38-rt19-g1224cd679e

    it should be PSDK 6.x

    Regards. Tony Tang
  • In reply to Tony Tang:

    Hello Tony,

    I apologize for the delayed response but by default the "k3-am654-evm-tc358876.dtbo" is not appended to the device tree. For my experiment, I halted the boot process in the Uboot prompt and added the following lines of code:

    => env set findfdt 'setenv name_fdt k3-am654-base-board.dtb;setenv fdtfile ${name_fdt};setenv overlay_files ${name_overlays} k3-am654-evm-tc358876.dtbo'
    => saveenv

    After adding the above lines of code in Uboot, I was able to see the matrix gui on the monitor.

    Regards,
    Krunal