iMX8MQ based board stopped booting the Linux kernel on zeus about meta-freescale HOT 15 CLOSED

Reverted and sent PR #332

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Fixed in #332.

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Isolated to the following commit: 54d14f1

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My build configuration,

Build Configuration:
BB_VERSION           = "1.44.0"
BUILD_SYS            = "x86_64-linux"
NATIVELSBSTRING      = "universal"
TARGET_SYS           = "aarch64-fslc-linux"
MACHINE              = "coral-dev"
DISTRO               = "fslc-xwayland"
DISTRO_VERSION       = "3.0"
TUNE_FEATURES        = "aarch64"
TARGET_FPU           = ""
meta                 
meta-poky            = "HEAD:5531ffc5668c2f24b9018a7b7174b5c77315a1cf"
meta-oe              
meta-multimedia      
meta-python          = "HEAD:9e60d30669a2ad0598e9abf0cd15ee06b523986b"
meta-freescale       = "zeus:5fdac18a1f4daed214e07af014d068b7b6196f5c"
meta-freescale-3rdparty = "HEAD:bebf0ad8a4a95f657f93e96a2bd0b1046617e990"
meta-freescale-distro = "HEAD:ca27d12e4964d1336e662bcc60184bbff526c857"
meta-clang           = "zeus:81ba160c95b12b2922f99b60bef25ab37a5e2f0e"
meta-coral-bsp       = "zeus:448c000cd3e4514a412bf789a209ffbf908c5110"

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@chrisdimich any idea?

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We tested on Nitrogen8M which is iMX8MQ based and we do not see this issue.

from meta-freescale.

@chrisdimich please help on this as this is a regression of a previously working device. Maybe there is a required change on U-Boot or Linux?

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Sure, we will look at this first thing tomorrow. Again, our validation was obviously using our own Nitrogen boards, so we did not see this issue.

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I can confirm that I was able to reproduce this on the imx8mqevk target as well.

Build configuration during this test,

Build Configuration:
BB_VERSION           = "1.44.0"
BUILD_SYS            = "x86_64-linux"
NATIVELSBSTRING      = "universal"
TARGET_SYS           = "aarch64-fslc-linux"
MACHINE              = "imx8mqevk"
DISTRO               = "fslc-xwayland"
DISTRO_VERSION       = "3.0"
TUNE_FEATURES        = "aarch64"
TARGET_FPU           = ""
meta                 
meta-poky            = "HEAD:5531ffc5668c2f24b9018a7b7174b5c77315a1cf"
meta-oe              
meta-multimedia      
meta-python          = "HEAD:9e60d30669a2ad0598e9abf0cd15ee06b523986b"
meta-freescale       = "zeus:5fdac18a1f4daed214e07af014d068b7b6196f5c"
meta-freescale-3rdparty = "HEAD:bebf0ad8a4a95f657f93e96a2bd0b1046617e990"
meta-freescale-distro = "HEAD:ca27d12e4964d1336e662bcc60184bbff526c857"

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@chrisdimich @gibsson please take a look. I wonder how your board is working, have you guys added any change?

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My suspicion is that ATF has changed his way of doing IRQs in 4.19.
Most likely @chrisdimich didn't update U-Boot from the image. If you keep the U-Boot from before, it will work.
Since U-Boot is in the fastboot partition in our case, you can flash the image without affecting U-Boot nor need to update it.
@mirzak , first can you confirm that you updated U-Boot after flashing the image on Nitrogen8M?
If so, as a test and to confirm my theory, can you flash your nitrogen8m with the following U-Boot: http://linode.boundarydevices.com/u-boot-images/u-boot.nitrogen8m
If this recipe was updated only for Nano support, either revert to previous version (and we'll remove bootloader from nano conf for now) or use v4.14.98_2.3.0 instead (the one we use right now with 4.14 kernel).

from meta-freescale.

@mirzak , first can you confirm that you updated U-Boot after flashing the image on Nitrogen8M?

I do not have a Nitrogen8M board, I have tested on imx8mqevk. I can confirm that I flash U-Boot as I am I am booting from SD card and using the wic image to flash it, e.g

zcat /tmp/core-image-base-imx8mqevk.wic.gz | sudo dd of=/dev/sda bs=8M

from meta-freescale.

Oh sorry I thought you saw that issue on Nitrogen8M at first, no problem.
So yeah it seems you can't mix 4.19 atf with older kernels, nice.
I'll let @chrisdimich decide what he wants to do for nano but I'd suggest reverting both ATF and OPTEE updates in zeus. Sorry for the inconvenience.

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@chrisdimich please send the reverts.

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Sure will do and as Gary mentioned we will just remove bootloader from nano conf for now.

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