Initial port to i.MX6UL for SBC-EC9100
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Authored by shurd on Jul 26 2023, 9:10 PM.

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Reviewers

andrew
manu

Group Reviewers

ARM

Summary

This adds support for the i.MX6UL SoC as used on the EMTOP-TECH
(formerly Embest) SBC-EC9100 board, currently $20 on Amazon
here: https://www.amazon.com/SBCSoM-Computer-Cortex-A7-Interface-SBC-IMX6UL/dp/B0BHQMZGS2/

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Repository

rG FreeBSD src repository

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Build Status

Buildable 52860
Build 49751: arc lint + arc unit

Event Timeline

shurd created this revision.Jul 26 2023, 9:10 PM

Herald added a subscriber: imp. · View Herald TranscriptJul 26 2023, 9:10 PM

shurd requested review of this revision.Jul 26 2023, 9:10 PM

Harbormaster completed remote builds in B52857: Diff 125209.Jul 26 2023, 9:10 PM

I understand this will need to be split up, just wanted to get initial feedback in case I'm heading in terrible directions.

Add SOC_IMX6 to GENERIC since it's used in if_ffec.c now

Harbormaster completed remote builds in B52860: Diff 125214.Jul 26 2023, 11:16 PM

Yeah splitting would be easier.
I don't think that we should add new kernel configs, just make sure that it's working with GENERIC and if you want a specific kernel config for this board just keep it in your tree :)
For the DTS it's not in upstream linux either and so shouldn't be in the sys/contrib directory.

sys/arm/freescale/fsl_ocotp.c
166	You should switch that to a table and use ofw_bus_search_compatible instead.
sys/arm/freescale/imx/imx6_ccm.c
239	Convert to ofw_bus_search_compatible
sys/arm/freescale/vybrid/vf_adc.c
135	Swtich to ofw_bus_search_compatible
sys/dev/cpufreq/cpufreq_dt.c
503	Probably need a comment that this is imx6 specific and that there is no Binding docs for this regulator. Is it enough though ? They seems to have arm-supply and soc-supply regulators.