Hello,
we're using a PicoCore MX8MP-V2-LIN HW-Rev. 1.0 which works with our software + hardware.
We replaced it with Rev. 1.1 and use the same Hardware + Software. Now the LVDS-Display isn't working anymore.
Old U-Boot output:
U-Boot SPL 2020.04 (Jul 20 2021 - 08:40:33 +0000)
DDRInfo: RAM initialization success.
Using fixed config: 0x3b
Normal Boot
Trying to boot from BOOTROM
image offset 0x0, pagesize 0x200, ivt offset 0x0
NOTICE: BL31: v2.2(release):rel_imx_5.4.70_2.3.2_rc1-0-g2a2678646-dirty
NOTICE: BL31: Built : 18:46:16, Jul 19 2021
U-Boot 2020.04 (Jul 20 2021 - 08:40:33 +0000) for F&S
CPU: i.MX8MP[8] rev1.0 1800 MHz (running at 1200 MHz)
CPU: Commercial temperature grade (0C to 95C) at 39C
Reset cause: POR
Model: F&S PicoCoreMX8MP
Board: PicoCoreMX8MP Rev 1.00 (2x LAN, eMMC, 1x DRAM)
DRAM: 1 GiB
tcpc_init: Can't find device id=0x52
setup_typec: tcpc port init failed, err=-19
MMC: FSL_SDHC: 0, FSL_SDHC: 2
Loading Environment from MMC... OK
In: serial
Out: serial
Err: serial
BuildInfo:
- ATF 2a26786
- U-Boot 2020.04
flash target is MMC:2
Net: eth0: ethernet@30be0000 [PRIME], eth1: ethernet@30bf0000
Fastboot: Normal
Normal Boot
New output on Rev 1.1 looks like this:
The CPU-Name changed.
Probably because of the updated U-Boot version?
The error we get in the systemlog with Rev 1.1 are:
Mar 21 17:02:43 fsimx8mp kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Mar 21 17:02:43 fsimx8mp kernel: [drm] No driver support for vblank timestamp query.
Mar 21 17:02:43 fsimx8mp kernel: imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops)
Mar 21 17:02:43 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: version number is 0x1060200
Mar 21 17:02:43 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: Failed to attach bridge: 32e60000.mipi_dsi
Mar 21 17:02:43 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: failed to bind sec dsim bridge: -19
Mar 21 17:02:43 fsimx8mp kernel: imx-drm display-subsystem: bound 32e60000.mipi_dsi (ops imx_sec_dsim_ops)
Mar 21 17:02:43 fsimx8mp kernel: [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0
...
Mar 21 17:02:44 fsimx8mp systemd[1]: Started Start Psplash Boot Screen.
Mar 21 17:02:44 fsimx8mp psplash[288]: Error opening /dev/fb0
Mar 21 17:02:44 fsimx8mp systemd[1]: Started Load/Save Random Seed.
Mar 21 17:02:44 fsimx8mp systemd[1]: psplash-start.service: Main process exited, code=exited, status=255/EXCEPTION
Mar 21 17:02:44 fsimx8mp systemd[1]: psplash-start.service: Failed with result 'exit-code'.
...
Mar 21 17:02:44 fsimx8mp systemd[1]: Started Start Psplash Boot Screen.
Mar 21 17:02:44 fsimx8mp psplash[323]: Error opening /dev/fb0
Mar 21 17:02:44 fsimx8mp systemd[1]: psplash-start.service: Main process exited, code=exited, status=255/EXCEPTION
Mar 21 17:02:44 fsimx8mp systemd[1]: psplash-start.service: Failed with result 'exit-code'.
...
Mar 21 17:02:45 fsimx8mp kernel[329]: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Mar 21 17:02:45 fsimx8mp kernel[329]: [drm] No driver support for vblank timestamp query.
Mar 21 17:02:45 fsimx8mp kernel[329]: imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops)
Mar 21 17:02:45 fsimx8mp kernel[329]: imx_sec_dsim_drv 32e60000.mipi_dsi: version number is 0x1060200
Mar 21 17:02:45 fsimx8mp kernel[329]: imx_sec_dsim_drv 32e60000.mipi_dsi: Failed to attach bridge: 32e60000.mipi_dsi
Mar 21 17:02:45 fsimx8mp kernel[329]: imx_sec_dsim_drv 32e60000.mipi_dsi: failed to bind sec dsim bridge: -19
Mar 21 17:02:45 fsimx8mp kernel[329]: imx-drm display-subsystem: bound 32e60000.mipi_dsi (ops imx_sec_dsim_ops)
Mar 21 17:02:45 fsimx8mp kernel[329]: [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 0
...
Mar 21 17:02:47 fsimx8mp startApplication.sh[418]: Failed to create wl_display (No such file or directory)
Mar 21 17:02:47 fsimx8mp startApplication.sh[418]: qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
Mar 21 17:02:47 fsimx8mp startApplication.sh[418]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Mar 21 17:02:47 fsimx8mp startApplication.sh[418]: Available platform plugins are: eglfs, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland.
Mar 21 17:02:47 fsimx8mp audit[422]: ANOM_ABEND auid=4294967295 uid=0 gid=0 ses=4294967295 pid=422 comm="APP" exe="/opt/APP" sig=6 res=1
Mar 21 17:02:47 fsimx8mp startApplication.sh[418]: /opt/startApplication.sh: line 15: 422 Aborted /opt/APP
Mar 21 17:02:47 fsimx8mp systemd[1]: app.service: Main process exited, code=exited, status=134/n/a
Mar 21 17:02:47 fsimx8mp systemd[1]: app.service: Failed with result 'exit-code'.
Mar 21 17:02:47 fsimx8mp kernel: audit: type=1701 audit(1679414567.020:5): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=422 comm="APP" exe=/opt/APP" sig=6 res=1
Mar 21 17:02:47 fsimx8mp kernel[329]: audit: type=1701 audit(1679414567.020:5): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=422 comm="APP" exe="/opt/APP" sig=6 res=1
For the old Version we get this additional log and have a working frame buffer:
Nov 20 11:21:20 fsimx8mp kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Nov 20 11:21:20 fsimx8mp kernel: [drm] No driver support for vblank timestamp query.
Nov 20 11:21:20 fsimx8mp kernel: imx-drm display-subsystem: bound imx-lcdifv3-crtc.0 (ops lcdifv3_crtc_ops)
Nov 20 11:21:20 fsimx8mp kernel: imx-drm display-subsystem: bound imx-lcdifv3-crtc.1 (ops lcdifv3_crtc_ops)
Nov 20 11:21:20 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: version number is 0x1060200
Nov 20 11:21:20 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: Failed to attach bridge: 32e60000.mipi_dsi
Nov 20 11:21:20 fsimx8mp kernel: imx_sec_dsim_drv 32e60000.mipi_dsi: failed to bind sec dsim bridge: -19
Nov 20 11:21:20 fsimx8mp kernel: imx-drm display-subsystem: bound 32e60000.mipi_dsi (ops imx_sec_dsim_ops)
Nov 20 11:21:20 fsimx8mp kernel: imx-drm display-subsystem: bound 32c00000.bus:ldb@32ec005c (ops imx8mp_ldb_ops)
Nov 20 11:21:20 fsimx8mp kernel: [drm] Initialized imx-drm 1.0.0 20120507 for display-subsystem on minor 1
Nov 20 11:21:20 fsimx8mp kernel: Console: switching to colour frame buffer device 160x50
