imx: imx8mm: imx8mm-kontron-n801x-s: does not start work

11 Jan 2022


      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 already disabled BINMAN_FDT an the u-boot start but when printing
the fdt node I do not see the binman node:
---- >8 ----
=> fdt addr $fdtcontroladdr
=> fdt list
/ {
interrupt-parent = <0x00000001>;
#address-cells = <0x00000002>;
#size-cells = <0x00000002>;
model = "Kontron i.MX8MM N801X S LVDS";
compatible = "kontron,imx8mm-n801x-s-lvds", "fsl,imx8mm";
fit-images {
};
aliases {
};
cpus {
};
opp-table {
};
clock-osc-32k {
};
clock-osc-24m {
};
clock-ext1 {
};
clock-ext2 {
};
clock-ext3 {
};
clock-ext4 {
};
psci {
};
pmu {
};
timer {
};
thermal-zones {
};
usbphynop1 {
};
usbphynop2 {
};
soc@0 {
};
memory@40000000 {
};
chosen {
};
clock-osc-can {
};
leds {
};
pwm-beeper {
};
regulator-rst-eth2 {
};
regulator-5v {
};
backlight {
};
regpanel-pwr {
};
regpanel-rst {
};
regpanel-stby {
};
regpanel-hinv {
};
regpanel-vinv {
};
regulator-24v {
};
};
=>
---- >8 ----
Thanks
-- 
Heiko

imx: imx8mm: imx8mm-kontron-n801x-s: does not start work

Heiko Thiery