GPIOs not working anymore after update to TorizonCore 6.1.0

We are currently working with verdin imx8m-mini on a custom board and use some GPIOs that worked perfectly fine. We updated TorizonCore from 5.1.0+git.afc2df4893e6 to 6.1.0+git.349786b46e61 and since then some of the GPIOs are not controlable anymore and are set HIGH all the time.
These GPIOS are:

  • /dev/gpiochip2, line 10
  • /dev/gpiochip2, line 11
  • /dev/gpiochip2, line 12
  • /dev/gpiochip2, line 13
  • /dev/gpiochip4, line 26

The GPIOs are neighter controlable via the command line interface nor our control software (python) which was (successfully) used on TorizonCore before the update.

According to the output of gpioinfo the pins should be useable:

gpiochip2 - 32 lines:
	line   0:  "SODIMM_52"       unused   input  active-high 
	line   1:  "SODIMM_54"       unused   input  active-high 
	line   2:  "SODIMM_64"       unused   input  active-high 
	line   3:  "SODIMM_21"      "reset"  output   active-low [used]
	line   4: "SODIMM_206"       unused   input  active-high 
	line   5:  "SODIMM_76" "regulator-usdhc2" output active-high [used]
	line   6:  "SODIMM_56"       unused   input  active-high 
	line   7:  "SODIMM_58"       unused   input  active-high 
	line   8:  "SODIMM_60"       unused   input  active-high 
	line   9:  "SODIMM_62"       unused   input  active-high 
	line  10: "SODIMM_162"       unused   input  active-high 
	line  11: "SODIMM_164"       unused   input  active-high 
	line  12: "SODIMM_166"       unused   input  active-high 
	line  13: "SODIMM_168"       unused   input  active-high 
	line  14:  "SODIMM_66"       unused   input  active-high 
	line  15:  "SODIMM_17"       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17: "SODIMM_156"       unused   input  active-high 
	line  18: "SODIMM_160"       unused   input  active-high 
	line  19: "SODIMM_244"       unused  output  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:  "SODIMM_48"       unused   input  active-high 
	line  22:  "SODIMM_44"       unused   input  active-high 
	line  23:  "SODIMM_42"       unused   input  active-high 
	line  24:  "SODIMM_46"       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 

gpiochip4 - 32 lines:
	line   0: "SODIMM_131"       unused   input  active-high 
	line   1:      unnamed "CTRL_SLEEP_MOCI#" output active-high [used]
	line   2:  "SODIMM_91"       unused   input  active-high 
	line   3:  "SODIMM_16"       unused   input  active-high 
	line   4:  "SODIMM_15"       unused   input  active-high 
	line   5: "SODIMM_208"       unused   input  active-high 
	line   6: "SODIMM_137"       unused   input  active-high 
	line   7: "SODIMM_139"       unused   input  active-high 
	line   8: "SODIMM_141"       unused   input  active-high 
	line   9: "SODIMM_143"       unused   input  active-high 
	line  10: "SODIMM_196"       unused   input  active-high 
	line  11: "SODIMM_200"       unused   input  active-high 
	line  12: "SODIMM_198"       unused   input  active-high 
	line  13: "SODIMM_202"   "spi1 CS0"  output   active-low [used]
	line  14:      unnamed        "scl"  output  active-high [used open-drain]
	line  15:      unnamed        "sda"   input  active-high [used open-drain]
	line  16:  "SODIMM_55"        "scl"  output  active-high [used open-drain]
	line  17:  "SODIMM_53"        "sda"   input  active-high [used open-drain]
	line  18:  "SODIMM_95"        "scl"  output  active-high [used open-drain]
	line  19:  "SODIMM_93"        "sda"   input  active-high [used open-drain]
	line  20:  "SODIMM_14"        "scl"  output  active-high [used open-drain]
	line  21:  "SODIMM_12"        "sda"   input  active-high [used open-drain]
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed   "spi2 CS0"  output   active-low [used]
	line  26: "SODIMM_210"       unused   input  active-high 
	line  27: "SODIMM_212"       unused   input  active-high 
	line  28: "SODIMM_151"       unused   input  active-high 
	line  29: "SODIMM_153"       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 

Can anyone help me to get the GPIOs working again?

Hello @rubmay07 ,

Your issue might be related to this thread. Can you have a look at it?

Best regards,
Josep

Hello @josep.tx,
thank you for your quick reply. I checked your linked answer but unfortunately it didn’t help.
If I use gpiofind i.e., gpioset $(gpiofind "SODIMM_168")=0 nothing happens, the pin stays in high state as it is since boot time.

Were you using a custom device tree or overlay for these pins in TorizonCore 5? The device tree used in TorizonCore 5 does not have SODIMM 168 configured as a GPIO, so I’m curious how you were able to use this as a GPIO before.

Best Regards,
Jeremias

No, we use no special device tree or overlay, just TorizonCore installed via EasyInstaller. All used GPIOs work flawlessly on TorizonCore5 but stopped working now with Version 6.

Hello @rubmay07
Would it be possible for you to send us the schematics of your custom carrier board ( or at least the GPIO section) to support@toradex.com mentioning this topic? That would help us to better understand your problem.

Best regards,
Josep

Hello @rubmay07 ,
Were you able to sole your issue? Do you need more help on our side?

Best regards,
Josep

Dear @josep.tx,
I just sent you the board design via email as requested.

Best regards,
Martin

Hello @rubmay07 ,
Thanks, we confirm that we have received it.

Best regards,
Josep

Hello @rubmay07 ,
Unfortunately we are not able to reproduce your issue.
Could you please send us the boot log of the module and the gpioinfo output for both TorizonCore versions that you are using?
5.1.0+git.afc2df4893e6
6.1.0+git.349786b46e61

Best regards,
Josep

Hello @josep.tx,
here is the output of gpioinfo:

  • already using the next version of TorizonCore: 6.2.0+git.aa0ff7e3554e (but same problem)
root@0e04d51a9674:/# gpioinfo
gpiochip0 - 32 lines:
	line   0: "SODIMM_216"       unused   input  active-high 
	line   1:  "SODIMM_19"        "hpd"   input  active-high [used]
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed  "interrupt"   input  active-high [used]
	line   4:      unnamed    "sd-vsel"  output  active-high [used]
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8: "SODIMM_220" "eos-gpio-controller" input active-high [used]
	line   9: "SODIMM_222" "eos-gpio-controller" input active-high [used]
	line  10:      unnamed  "interrupt"   input  active-high [used]
	line  11: "SODIMM_218" "eos-gpio-controller" output active-high [used]
	line  12: "SODIMM_155" "regulator-usb-otg1" output active-high [used]
	line  13: "SODIMM_157"       unused   input  active-high 
	line  14: "SODIMM_185" "regulator-usb-otg2" output active-high [used]
	line  15: "SODIMM_187"       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip1 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused  output  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:  "SODIMM_84"         "cd"   input   active-low [used]
	line  13:  "SODIMM_78"       unused   input  active-high 
	line  14:  "SODIMM_74"       unused   input  active-high 
	line  15:  "SODIMM_80"       unused   input  active-high 
	line  16:  "SODIMM_82"       unused   input  active-high 
	line  17:  "SODIMM_70"       unused   input  active-high 
	line  18:  "SODIMM_72"       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed "regulator-ethphy" output active-high [used]
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip2 - 32 lines:
	line   0:  "SODIMM_52"       unused   input  active-high 
	line   1:  "SODIMM_54"       unused   input  active-high 
	line   2:  "SODIMM_64"       unused   input  active-high 
	line   3:  "SODIMM_21"      "reset"  output   active-low [used]
	line   4: "SODIMM_206" "eos-gpio-controller" output active-high [used]
	line   5:  "SODIMM_76" "regulator-usdhc2" output active-high [used]
	line   6:  "SODIMM_56"       unused   input  active-high 
	line   7:  "SODIMM_58"       unused   input  active-high 
	line   8:  "SODIMM_60"       unused   input  active-high 
	line   9:  "SODIMM_62"       unused   input  active-high 
	line  10: "SODIMM_162" "eos-gpio-controller" output active-high [used]
	line  11: "SODIMM_164" "eos-gpio-controller" output active-high [used]
	line  12: "SODIMM_166" "eos-gpio-controller" output active-high [used]
	line  13: "SODIMM_168" "eos-gpio-controller" output active-high [used]
	line  14:  "SODIMM_66"       unused   input  active-high 
	line  15:  "SODIMM_17"       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17: "SODIMM_156"       unused   input  active-high 
	line  18: "SODIMM_160"       unused   input  active-high 
	line  19: "SODIMM_244"       unused  output  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:  "SODIMM_48"       unused   input  active-high 
	line  22:  "SODIMM_44"       unused   input  active-high 
	line  23:  "SODIMM_42"       unused   input  active-high 
	line  24:  "SODIMM_46"       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip3 - 32 lines:
	line   0: "SODIMM_102"       unused   input  active-high 
	line   1:  "SODIMM_90" "eos-gpio-controller" input active-high [used]
	line   2:  "SODIMM_92" "eos-gpio-controller" input active-high [used]
	line   3:  "SODIMM_94" "eos-gpio-controller" output active-high [used]
	line   4:  "SODIMM_96" "eos-gpio-controller" input active-high [used]
	line   5: "SODIMM_100" "eos-gpio-controller" input active-high [used]
	line   6: "SODIMM_148" "eos-gpio-controller" input active-high [used]
	line   7: "SODIMM_152" "eos-gpio-controller" output active-high [used]
	line   8: "SODIMM_154" "eos-gpio-controller" output active-high [used]
	line   9: "SODIMM_174"       unused   input  active-high 
	line  10: "SODIMM_120" "eos-gpio-controller" input active-high [used]
	line  11: "SODIMM_104" "eos-gpio-controller" input active-high [used]
	line  12: "SODIMM_106" "eos-gpio-controller" input active-high [used]
	line  13: "SODIMM_108" "eos-gpio-controller" input active-high [used]
	line  14: "SODIMM_112" "eos-gpio-controller" input active-high [used]
	line  15: "SODIMM_114" "eos-gpio-controller" input active-high [used]
	line  16: "SODIMM_116" "eos-gpio-controller" input active-high [used]
	line  17: "SODIMM_150" "eos-gpio-controller" input active-high [used]
	line  18: "SODIMM_118" "eos-gpio-controller" input active-high [used]
	line  19:      unnamed       unused  output  active-high 
	line  20:  "SODIMM_88" "eos-gpio-controller" input active-high [used]
	line  21: "SODIMM_149"       unused   input  active-high 
	line  22: "SODIMM_147"       unused   input  active-high 
	line  23:  "SODIMM_36"       unused   input  active-high 
	line  24:  "SODIMM_32"       unused   input  active-high 
	line  25:  "SODIMM_30"       unused   input  active-high 
	line  26:  "SODIMM_34"       unused   input  active-high 
	line  27:  "SODIMM_38"       unused   input  active-high 
	line  28: "SODIMM_252"    "Wake-Up"   input   active-low [used]
	line  29: "SODIMM_133"       unused   input  active-high 
	line  30: "SODIMM_135"       unused   input  active-high 
	line  31: "SODIMM_129"       unused   input  active-high 
gpiochip4 - 32 lines:
	line   0: "SODIMM_131"       unused   input  active-high 
	line   1:      unnamed "CTRL_SLEEP_MOCI#" output active-high [used]
	line   2:  "SODIMM_91"       unused   input  active-high 
	line   3:  "SODIMM_16"       unused   input  active-high 
	line   4:  "SODIMM_15"       unused   input  active-high 
	line   5: "SODIMM_208"       unused   input  active-high 
	line   6: "SODIMM_137"       unused   input  active-high 
	line   7: "SODIMM_139"       unused   input  active-high 
	line   8: "SODIMM_141"       unused   input  active-high 
	line   9: "SODIMM_143"       unused   input  active-high 
	line  10: "SODIMM_196"       unused   input  active-high 
	line  11: "SODIMM_200"       unused   input  active-high 
	line  12: "SODIMM_198"       unused   input  active-high 
	line  13: "SODIMM_202"   "spi1 CS0"  output   active-low [used]
	line  14:      unnamed        "scl"  output  active-high [used open-drain]
	line  15:      unnamed        "sda"   input  active-high [used open-drain]
	line  16:  "SODIMM_55"        "scl"  output  active-high [used open-drain]
	line  17:  "SODIMM_53"        "sda"   input  active-high [used open-drain]
	line  18:  "SODIMM_95"        "scl"  output  active-high [used open-drain]
	line  19:  "SODIMM_93"        "sda"   input  active-high [used open-drain]
	line  20:  "SODIMM_14"        "scl"  output  active-high [used open-drain]
	line  21:  "SODIMM_12"        "sda"   input  active-high [used open-drain]
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed   "spi2 CS0"  output   active-low [used]
	line  26: "SODIMM_210" "eos-gpio-controller" output active-high [used]
	line  27: "SODIMM_212" "eos-gpio-controller" output active-high [used]
	line  28: "SODIMM_151"       unused   input  active-high 
	line  29: "SODIMM_153"       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
  • version 5.1.0+git.afc2df4893e6
root@e619438c3711:/# gpioinfo
gpiochip0 - 32 lines:
	line   0: "SODIMM_216"       unused   input  active-high 
	line   1:  "SODIMM_19"       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed  "interrupt"   input  active-high [used]
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed    "spi_imx"   input  active-high [used]
	line   6:      unnamed  "interrupt"   input  active-high [used]
	line   7:      unnamed       unused   input  active-high 
	line   8: "SODIMM_220"       unused   input  active-high 
	line   9: "SODIMM_222"       unused   input  active-high 
	line  10:      unnamed  "interrupt"   input  active-high [used]
	line  11: "SODIMM_218" "eos-gpio-controller" output active-high [used]
	line  12: "SODIMM_155" "regulator-usb-otg1" output active-high [used]
	line  13: "SODIMM_157"       unused   input  active-high 
	line  14: "SODIMM_185" "regulator-usb-otg2" output active-high [used]
	line  15: "SODIMM_187"       unused   input  active-high 
	line  16:      unnamed       unused   input  active-high 
	line  17:      unnamed       unused   input  active-high 
	line  18:      unnamed       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed       unused   input  active-high 
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip1 - 32 lines:
	line   0:      unnamed       unused   input  active-high 
	line   1:      unnamed       unused   input  active-high 
	line   2:      unnamed       unused   input  active-high 
	line   3:      unnamed       unused   input  active-high 
	line   4:      unnamed       unused   input  active-high 
	line   5:      unnamed       unused   input  active-high 
	line   6:      unnamed       unused   input  active-high 
	line   7:      unnamed       unused   input  active-high 
	line   8:      unnamed       unused   input  active-high 
	line   9:      unnamed       unused   input  active-high 
	line  10:      unnamed       unused  output  active-high 
	line  11:      unnamed       unused   input  active-high 
	line  12:  "SODIMM_84"         "cd"   input   active-low [used]
	line  13:  "SODIMM_78"       unused   input  active-high 
	line  14:  "SODIMM_74"       unused   input  active-high 
	line  15:  "SODIMM_80"       unused   input  active-high 
	line  16:  "SODIMM_82"       unused   input  active-high 
	line  17:  "SODIMM_70"       unused   input  active-high 
	line  18:  "SODIMM_72"       unused   input  active-high 
	line  19:      unnamed       unused   input  active-high 
	line  20:      unnamed "regulator-ethphy" output active-high [used]
	line  21:      unnamed       unused   input  active-high 
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip2 - 32 lines:
	line   0:  "SODIMM_52"       unused   input  active-high 
	line   1:  "SODIMM_54"       unused   input  active-high 
	line   2:  "SODIMM_64"       unused   input  active-high 
	line   3:  "SODIMM_21"       unused   input  active-high 
	line   4: "SODIMM_206" "eos-gpio-controller" output active-high [used]
	line   5:  "SODIMM_76" "regulator-usdhc2" output active-high [used]
	line   6:  "SODIMM_56"       unused   input  active-high 
	line   7:  "SODIMM_58"       unused   input  active-high 
	line   8:  "SODIMM_60"       unused   input  active-high 
	line   9:  "SODIMM_62"       unused   input  active-high 
	line  10: "SODIMM_162"       unused   input  active-high 
	line  11: "SODIMM_164"       unused   input  active-high 
	line  12: "SODIMM_166"       unused   input  active-high 
	line  13: "SODIMM_168"       unused   input  active-high 
	line  14:  "SODIMM_66"       unused   input  active-high 
	line  15:  "SODIMM_17"        "hpd"   input  active-high [used]
	line  16:      unnamed       unused   input  active-high 
	line  17: "SODIMM_156"       unused   input  active-high 
	line  18: "SODIMM_160"       unused   input  active-high 
	line  19: "SODIMM_244"       unused  output  active-high 
	line  20: "SODIMM_250"       unused   input  active-high 
	line  21:  "SODIMM_48"       unused   input  active-high 
	line  22:  "SODIMM_44"       unused   input  active-high 
	line  23:  "SODIMM_42"       unused   input  active-high 
	line  24:  "SODIMM_46"       unused   input  active-high 
	line  25:      unnamed       unused   input  active-high 
	line  26:      unnamed       unused   input  active-high 
	line  27:      unnamed       unused   input  active-high 
	line  28:      unnamed       unused   input  active-high 
	line  29:      unnamed       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 
gpiochip3 - 32 lines:
	line   0: "SODIMM_102"       unused   input  active-high 
	line   1:  "SODIMM_90" "eos-gpio-controller" input active-high [used]
	line   2:  "SODIMM_92" "eos-gpio-controller" input active-high [used]
	line   3:  "SODIMM_94" "eos-gpio-controller" output active-high [used]
	line   4:  "SODIMM_96"       unused   input  active-high 
	line   5: "SODIMM_100"       unused   input  active-high 
	line   6: "SODIMM_148"       unused   input  active-high 
	line   7: "SODIMM_152"       unused   input  active-high 
	line   8: "SODIMM_154"       unused   input  active-high 
	line   9: "SODIMM_174"       unused   input  active-high 
	line  10: "SODIMM_120"       unused   input  active-high 
	line  11: "SODIMM_104" "eos-gpio-controller" input active-high [used]
	line  12: "SODIMM_106" "eos-gpio-controller" input active-high [used]
	line  13: "SODIMM_108" "eos-gpio-controller" input active-high [used]
	line  14: "SODIMM_112" "eos-gpio-controller" input active-high [used]
	line  15: "SODIMM_114" "eos-gpio-controller" input active-high [used]
	line  16: "SODIMM_116" "eos-gpio-controller" input active-high [used]
	line  17: "SODIMM_150"       unused   input  active-high 
	line  18: "SODIMM_118" "eos-gpio-controller" input active-high [used]
	line  19:      unnamed       unused   input  active-high 
	line  20:  "SODIMM_88" "eos-gpio-controller" input active-high [used]
	line  21: "SODIMM_149"       unused   input  active-high 
	line  22: "SODIMM_147"       unused   input  active-high 
	line  23:  "SODIMM_36"       unused   input  active-high 
	line  24:  "SODIMM_32"       unused   input  active-high 
	line  25:  "SODIMM_30"       unused   input  active-high 
	line  26:  "SODIMM_34"       unused   input  active-high 
	line  27:  "SODIMM_38"       unused   input  active-high 
	line  28: "SODIMM_252"    "Wake-Up"   input   active-low [used]
	line  29: "SODIMM_133"       unused   input  active-high 
	line  30: "SODIMM_135"       unused   input  active-high 
	line  31: "SODIMM_129"       unused   input  active-high 
gpiochip4 - 32 lines:
	line   0: "SODIMM_131"       unused   input  active-high 
	line   1:      unnamed "CTRL_SLEEP_MOCI#" output active-high [used]
	line   2:  "SODIMM_91"       unused   input  active-high 
	line   3:  "SODIMM_16"       unused   input  active-high 
	line   4:  "SODIMM_15"       unused   input  active-high 
	line   5: "SODIMM_208"      "reset"   input   active-low [used]
	line   6: "SODIMM_137"       unused   input  active-high 
	line   7: "SODIMM_139"       unused   input  active-high 
	line   8: "SODIMM_141"       unused   input  active-high 
	line   9: "SODIMM_143"       unused   input  active-high 
	line  10: "SODIMM_196"       unused   input  active-high 
	line  11: "SODIMM_200"       unused   input  active-high 
	line  12: "SODIMM_198"       unused   input  active-high 
	line  13: "SODIMM_202"    "spi_imx"  output  active-high [used]
	line  14:      unnamed        "scl"  output  active-high [used open-drain]
	line  15:      unnamed        "sda"  output  active-high [used open-drain]
	line  16:  "SODIMM_55"       unused   input  active-high 
	line  17:  "SODIMM_53"       unused   input  active-high 
	line  18:  "SODIMM_95"        "scl"  output  active-high [used open-drain]
	line  19:  "SODIMM_93"        "sda"  output  active-high [used open-drain]
	line  20:  "SODIMM_14"        "scl"  output  active-high [used open-drain]
	line  21:  "SODIMM_12"        "sda"  output  active-high [used open-drain]
	line  22:      unnamed       unused   input  active-high 
	line  23:      unnamed       unused   input  active-high 
	line  24:      unnamed       unused   input  active-high 
	line  25:      unnamed    "spi_imx"  output  active-high [used]
	line  26: "SODIMM_210" "eos-gpio-controller" output active-high [used]
	line  27: "SODIMM_212" "eos-gpio-controller" output active-high [used]
	line  28: "SODIMM_151"       unused   input  active-high 
	line  29: "SODIMM_153"       unused   input  active-high 
	line  30:      unnamed       unused   input  active-high 
	line  31:      unnamed       unused   input  active-high 

How do I retrieve the bootlog?
Thank you for your help &
best regards,
Martin