FreeBSD on Layerscape/QorIQ LX2160X

[greg at unrelenting.technology]

May 19, 2020 7:11 PM, "Dan Kotowski" <dan.kotowski at a9development.com> wrote:

>> Getting closer...
>> dmesg.boot: https://gist.github.com/agrajag9/99d26385be0f49a8a4f046f15a2c0f08
>> 
>> "iicbus0: <unknown card> at addr 0x77" nice!
>> Would be great if you could run `i2c -s` also.
> 
> Scanning I2C devices on /dev/iic0: 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 14 [..]
> 
> Hey look at that! A bunch of numbers! Hopefully they mean more to you than they do to me...

hmm, it shouldn't report all numbers as present. oh well.

>> sdhci_acpi0-slot0 seems to have hung the boot process for almost 5min waiting for various timeouts.
>> 
>> oops, so they didn't really make generic sdhci work :D
>> 
>> Well turns out we do have a Freescale ESDHC driver already.
>> It doesn't have DMA so performance won't be great (but SD/MMC is bad stuff anyway lol).
>> (interesting dev note: NetBSD gets away with just some quirks in the sdhci acpi driver:
>> SDHC_FLAG_HAVE_DVS|SDHC_FLAG_NO_PWR0|SDHC_FLAG_32BIT_ACCESS|SDHC_FLAG_ENHANCED)
> 
> No worries - once I can get a reliable install, I hope to never need to touch those again anyways.
> I mostly am hoping to get eMMC so I can flash updated firmware, assuming the errata list is correct
> and my silicon rev CAN boot from firmware on eMMC and it was a layer 8 failure.
> 
>> Trying to add ACPI support to it:
>> 
>> https://send.firefox.com/download/926c72b043182c40/#49y3TaeL7_hif_YEHUFQ2g
> 
> Latest dmesg.boot: https://gist.github.com/agrajag9/f4e8186e4cea7da1e5d8887a8d74dd7a

"mmcsd0: 32GB <SDHC SB32G 8.0 SN DD1242F8 MFG 09/2017 by 3 SD> at mmc0 43.7MHz/4bit/65535-block"
is better than before, but controller timeouts are sad. Welp.

If anyone is interested in debugging this (with the device in hand), my ACPI attachment patch is:
https://github.com/myfreeweb/freebsd/commit/4abb60611c53b6bf109e8854f60ecc697419cf1c

Once again, maybe NetBSD's way of supporting this (slight quirks in the generic ACPI SDHCI driver)
would be better than fsl_sdhci.

> I can't find the PCIe cables for my PSU right now, so the RX480 is out until I have time to dig
> through The Cable Box Of Doom. But I do have a spare LSI SAS HBA that I'll try after lunch!

Yeah, mpr/mps drivers are present, would be an okay thing to try.