iMX8MQ display port firmware issue

[marekbelisko]

Hello,

I'm trying to verify display port on imx8mq custom dev board. I flashed imx-boot-imx8mq-sd.bin-flash_dp_evk and setup DP in devicetree (similar to evk). During boot I have an issue which state:

dmesg | grep dp
[ 0.095997] No USDPAA memory, no 'fsl,usdpaa-mem' in device-tree
[ 0.108521] RPC: Registered udp transport module.
[ 1.266475] fsl_dpa: FSL DPAA Ethernet driver
[ 1.556360] mxc-mipi-csi2_yav 30b60000.mipi_csi: Remote device at endpoint@0 XXX found
[ 1.765353] fsl-usdpaa: no region found
[ 2.478562] cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xc6
[ 2.491317] [drm:__cdns_dp_probe] ERROR NO dp FW running
[ 2.496853] imx-dcss 32e00000.display-controller: failed to bind 32c00000.hdmi (ops cdns_mhdp_imx_ops): -6
[ 5.172328] systemd[1]: Starting udev Coldplug all Devices...

Does it mean that I'm missing firmware for DP or it's not active somehow? Thanks.

marek

[smusserRosen]

Hello Marek,

Did you resolve this issue with the corresponding response? I am currently in a situation where the firmware is running, auxiliary communication and training is successful, yet transmission does not occur. Was this all you had to do? I set up the display port similar to evk as well in the DT, made sure uboot was using the display port signed binaries from NXP (hence successful aux), yet no data from TX to panel. Setting video_off in uboot seems to do nothing for me.

Thanks

[marekb]

Yes the issue was that I wasn't flashing proper imx-boot (with dp) in name and have above issue. After fixing that it works.

[marekbelisko]

Hi, any info about that pls? I checked and there seems to be not other FW necessary. Thanks.

[joanxie · Accepted solution]

Using L5.4.70_2.3.2 release for DP working:

• imx-boot-imx8mqevk-sd.bin-flash_dp_evk
• imx8mq-evk-dp.dtb
• setting video_off=y on u-boot