Re: /usr/local/share/u-boot/u-boot-orangepi-plus-2e/README out of date ; orangepi-plus-2e and RPi2 v1.1 get "Kernel args: (null)"

From: Mark Millard via arm <arm_at_freebsd.org>
Date: Sun, 30 May 2021 22:32:38 -0700
On 2021-May-30, at 22:27, Mark Millard <marklmi at yahoo.com> wrote:

> On 2021-May-24, at 20:10, Mark Millard <marklmi at yahoo.com> wrote:
> 
>> On 2021-May-24, at 15:53, Mark Millard <marklmi at yahoo.com> wrote:
>> 
>>> On 2021-May-13, at 12:03, Mark Millard <marklmi at yahoo.com> wrote:
>>> 
>>>>>>> . . .
>>> 
>>> I do not know if the FreeBSD kernel has been depending
>>> on some U-Boot initialization for root-on-USB and the
>>> two no longer match or what.
>>> 
>>> But I've used a release/13.0.0.0 microsd card based
>>> boot to get older U-Boot materials (Quarterly as it
>>> turns out). Installing such got me back to having a
>>> root-on-USB boot of the OPi+2e (other than the
>>> mircosd card having the older U-Boot (2020.10 as it
>>> turns out). Of course there is also the matching
>>> boot.scr involved --but it also is on the USB SSD.
>>> (Similarly reverted RPi2 U-Boot, other than needing
>>> to switch boot.scr to match.)
>>> 
>>> After booting with the reverted U-Boot related
>>> material:
>>> 
>>> # mount -onoatime -tmsdosfs /dev/mmcsd1s1 /mnt
>>> # mount -onoatime /dev/mmcsd1s2a /media
>>> 
>>> # ls -Tla /mnt/
>>> total 20
>>> drwxr-xr-x   1 root  wheel  16384 Dec 31 16:00:00 1979 .
>>> drwxr-xr-x  25 root  wheel    512 Dec 31 16:00:40 2009 ..
>>> 
>>> # ls -Tla /media/
>>> total 60
>>> drwxr-xr-x   2 root  wheel    512 May 24 15:43:19 2021 .
>>> drwxr-xr-x  25 root  wheel    512 Dec 31 16:00:40 2009 ..
>>> -rwxr-xr-x   1 root  wheel  52456 Apr 24 19:48:36 2021 bootcode.bin
>>> 
>>> The media is also set up for booting an RPi2 via
>>> root-in-USB ( other than bootcode.bin ).
>>> 
>>> If FreeBSD and the more modern U-Boot were well matched
>>> for USB support, I'd expect that this sort of thing would
>>> work (no boot.scr needed).
>>> 
>>> For reference:
>>> 
>>> # ~/fbsd-based-on-what-freebsd-main.sh 
>>> FreeBSD OPiP2E_RPi2v11 14.0-CURRENT FreeBSD 14.0-CURRENT mm-src-n245445-def0058cc690 GENERIC-NODBG  arm armv7 1400005 1400005
>>> def0058cc690 (HEAD -> mm-src) mm-src snapshot for mm's patched build in git context.
>>> merge-base: 7381bbee29df959e88ec59866cf2878263e7f3b2
>>> merge-base: CommitDate: 2021-03-12 20:29:42 +0000
>>> 7381bbee29df (freebsd/main, freebsd/HEAD, pure-src, main) cam: Run all XPT_ASYNC ccbs in a dedicated thread
>>> n245444 (--first-parent --count for merge-base)
>> 
>> Looks like 2021.04 (even before 2021.04_1) also has the
>> problem for root-on-USB handling.
>> 
>> I managed to find a 2021-Apr-09 u-boot-orangepi-plus-2e
>> directory copy that was 2021.04 (and its boot.scr) but
>> before the UEFI change. When I tried it for the
>> root-on-USB context I still got the hangup after "Kernel
>> args: (null)" in:
>> 
>> . . .
>> Hit [Enter] to boot immediately, or any other key for command prompt.
>> Booting [/boot/kernel/kernel]...               
>> Using DTB provided by EFI at 0x47eea000.
>> Kernel entry at 0xb2e00200...
>> Kernel args: (null)
>> 
>> 
>> So it does not appear to be the UEFI change so much as
>> 2021.04 in general for which the FreeBSD kernel and
>> the U-Boot are apparently(?) mismatched for root-on-USB.
>> 
>> 
>> Reverting again to 2020.10 U-Boot got back the root-on-USB
>> status. For this the boot looks like:
>> 
>> . . .
>> Hit [Enter] to boot immediately, or any other key for command prompt.
>> Booting [/boot/kernel/kernel]...               
>> Using DTB provided by EFI at 0x47ef5000.
>> Kernel entry at 0xb2e00200...
>> Kernel args: (null)
>> ---<<BOOT>>---
>> KDB: debugger backends: ddb
>> KDB: current backend: ddb
>> Copyright (c) 1992-2021 The FreeBSD Project.
>> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
>>       The Regents of the University of California. All rights reserved.
>> FreeBSD is a registered trademark of The FreeBSD Foundation.
>> FreeBSD 14.0-CURRENT mm-src-n245445-def0058cc690 GENERIC-NODBG arm
>> FreeBSD clang version 11.0.1 (git_at_github.com:llvm/llvm-project.git llvmorg-11.0.1-0-g43ff75f2c3fe)
>> . . .
>> 
> 
> Well, I got a surprise in exploring: removing boot.scr
> and ubldr.bin did not prevent booting. (Noticed by the
> accident of ending up with one of them missing that I
> only later noticed.) So I recorded a boot and:
> 
> . . .
> U-Boot SPL 2020.10 (Apr 19 2021 - 18:04:31 +0000)
> DRAM: 2048 MiB
> Trying to boot from MMC1
> 
> 
> U-Boot 2020.10 (Apr 19 2021 - 18:04:31 +0000) Allwinner Technology
> 
> CPU:   Allwinner H3 (SUN8I 1680)
> Model: Xunlong Orange Pi Plus 2E
> DRAM:  2 GiB
> . . .
> Device 0: Vendor: OWC      Rev: 0    Prod: Envoy Pro mini  
>            Type: Hard Disk
>            Capacity: 228936.5 MB = 223.5 GB (468862128 x 512)
> ... is now current device
> Scanning usb 0:4...
> 30675 bytes read in 3 ms (9.8 MiB/s)
> Found EFI removable media binary efi/boot/bootarm.efi
> . . .
> Booting /efi\boot\bootarm.efi
> Consoles: EFI console  
> 
> 
> |/-\|/-\|/-\|/-\|/-\|/-\|/-\    Reading loader env vars from /efi/freebsd/loader.env
> 
> 
> Setting currdev to disk2p4:
> 
> 
> |/-\|/FreeBSD/arm EFI loader, Revision 1.1
> . . .
> 
> So I've likely been been booting via UEFI for
> some time via 2020.10 (or even before?), just
> without noticing at the time.
> 
> The other implication is likely that what disabled
> root-on-USB for my context was not the boot.scr
> removal material but some (possibly proper) subset
> of other material changed (extracted from
> ports' main 0d6e5081eb00 commit cgit display):

Nope: I forgot that I've tried 2021.04 from before
the UEFI changes referenced, and also had the
problem for that context.

Still it is interesting that I'm getting a UEFI
boot context from 2020.10 .

> . . .
> 


===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
Received on Mon May 31 2021 - 05:32:38 UTC

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