On 12.01.22 08:16, Heiko Thiery wrote:
Hi Adam, Hi Frieder,
Am Di., 11. Jan. 2022 um 20:33 Uhr schrieb Adam Ford aford173@gmail.com:
On Tue, Jan 11, 2022 at 1:18 AM Heiko Thiery heiko.thiery@gmail.com wrote:
Hi all,
I wanted to test the newly introduced kontron-sl-mx8mm_defconfig but it does not work.
I already found two converted config options that are missing in that defconfig:
+CONFIG_SPL_MMC=y +CONFIG_SPL_SERIAL=y
With that the output appears but the u-boot hangs when trying to find the binman node in the dtb.
--- >8 ---- U-Boot SPL 2022.01-00323-g56915a34d1 (Jan 11 2022 - 08:11:03 +0100) Kontron SL i.MX8MM (N801X) module, 1 GB RAM detected Touch controller detected, assuming LVDS panel... Normal Boot WDT: Not starting watchdog@30280000 Trying to boot from MMC2 NOTICE: BL31: v2.4(release):v2.4 NOTICE: BL31: Built : 09:46:16, Jan 10 2022
U-Boot 2022.01-00323-g56915a34d1 (Jan 11 2022 - 08:11:03 +0100)
CPU: Freescale i.MX8MMQ rev1.0 1600 MHz (running at 1200 MHz) CPU: Industrial temperature grade (-40C to 105C) at 47C Reset cause: POR Model: Kontron i.MX8MM N801X S LVDS DRAM: 1 GiB binman_init failed:-2 initcall sequence 000000007ffcef80 failed at call 000000004021f200 (err=-2) ### ERROR ### Please RESET the board ### --- >8 ----
Does anyone have an idea what goes wrong?
I did a diff on your defconfig and compared it to the imx8mm_beacon board, and there are few items that are different, but nothing obvious. I confirmed the Beacon board does boot. You might want to compare your defconfig files with other boards to see if you see something.
One main difference is that I have only one DTB file integrated into the FIT file, but you have several. I wonder if that is causing issues.
Thank you for the hint with the second dtb. It looks like a problem with the imx8mm-kontron-n801x-s-u-boot.dtsi file. Since there is an automatic detection in the board code what dtb to select in my case the second one is selected. This is the imx8mm-kontron-n801x-s-lvds.dtb. But for this one *-u-boot.dtsi is not included. When doing a copy of the "base" -u-boot.dtsi file that matches to the imx8mm-kontron-n801x-s-lvds.dtb name it works. Still the question why this worked before. We have to figure out what the difference is here compared to the version that was developed and worked on 2021.10.
Thanks for investigating this issue!
I can't really tell what went wrong at the moment. Either something has changed recently or I missed that the second dtb is not working as I was mostly testing with the first one!?
Adding a imx8mm-kontron-n801x-s-lvds-u-boot.dtsi with an include to imx8mm-kontron-n801x-s-u-boot.dtsi seems like a proper fix to me.
In the long run it would probably be better to use only one dtb and apply overlays as needed, anyway. But I haven't looked into that yet.