RPi4b 8GB 13.0-Current, XHCI broken, wrong U-Boot ?

[Mark Millard]

On 2021-Jan-4, at 00:35, Mark Millard <marklmi at yahoo.com> wrote:
> 
> 
> On 2021-Jan-3, at 23:54, Mark Millard <marklmi at yahoo.com> wrote:
> 
>> On 2021-Jan-3, at 11:33, Andy McClements <ajm at ip-ether.net> wrote:
>> 
>>> On 03/01/2021 18:29, Andy McClements wrote:
>>> 
>>>> Further on this, I have just done another test by replacing only:
>>>> 
>>>> bcm2711-rpi-4-b.dtb
>>>> 
>>>> on the FreeBSD 13.0-CURRENT 20201224 img, with the one from the RPI
>>>> firmware 20201227 release.
>>>> 
>>>> This **allows booting from USB**, which fails on the stock 20201224 img.
>>>> 
>>>> So it seems to me that patch D26853 **is not required**, if the upstream
>>>> file is now working OK.
>>> 
>>> *************************
>>> * A P O L O G I E S  !  *
>>> *************************
>>> 
>>> I have just noticed that with the 20201227 firmware version of 'bcm2711-rpi-4-b.dtb', 'genet0' is missing. USB disk boot is fine, but the onboard GE is not recognised.
>>> 
>>> The only way I can get everything working on my RPi4b 8G with FreeBSD 20201224, is to use the D26853 patched version of 'bcm2711-rpi-4-b.dtb'.
>>> 
>>> The firmware version I've been referring to as 20201227, has files in it with that datestamp, and was obtained from:
>>> 
>>> https://github.com/raspberrypi/firmware/archive/master.zip
>> 
>> The Raspberry Pi folks warn against picking up firmware from
>> Master unless requested to by them. Although this is indirect
>> via referencing a tool that gets materials from master. See:
>> 
>> https://www.raspberrypi.org/documentation/raspbian/applications/rpi-update.md
>> 
>> There are also stable and next branches, next being the progression
>> toward the next stable. There are also tagged officially-identified
>> versions. (eeprom firmware is not handled the same as this and is
>> not covered here.)

Looks like I got the definition for "next" wrong. The notice
about the future move to the 5.10 linux kernel is at:

https://www.raspberrypi.org/forums/viewtopic.php?t=288234

It describes next vs. master via:

QUOTE
We will do this in a few stages. Starting now, we are updating the "next" firmware branch to the 5.10 kernel.
Assuming testing is positive, we'll update the master rpi-update firmware branch.
Eventually the 5.10 kernel will appear with "apt upgrade" and on new RPiOS images in the future.
. . .
EDIT: The next upstream LTS (Long Term Support) kernel is 5.10, and we have now switched to testing this.
EDIT: master branch of rpi-update now gets 5.10 kerne. next branch is now dormant
END QUOTE

>> It looks to me like the following are the firmware changes since
>> stable and the most recent tag:
>> 
>> 
>> 2020-Dec-01 (I'm unsure of the timing/status of this one vs. stable
>> or the most recent tag: same day)
>> 
>> firmware: Switch DA9121 PMIC to PWM mode when ARM > 600 MHz
>> 
>> 
>> 
>> 2020-Dec-8 or 9 (9 being the Hexxeh copy):
>> 
>> firmware: arm_dt: Handle parent interrupt controllers when masking
>> 
>> firmware: config: Add cm4 and pi400 config section filters
>> 
>> firmware: MMAL/IL/ISP component: Set the ISP boost frequency once on open
>> 
>> firmware: sdcard: Remove legacy NOOBS support to support booting from primary partition 4
>> 
>> firmware: arm_loader: Move 2711 RAM to PCIe address 16GB
>> 
>> firmware: video_decode: Add parameter to disable timestamp validation
>> 
>> firmware: Imx477 camera tuning fixes
>> 
>> 
>> 2020-Dec-14 or 15:
>> 
>> firmware: Use DMA40 for PWM audio
>> 
>> firmware: imx477: Replace existing 720p120 mode with a new 1332x990 120fps mode
>> 
>> firmware: arm_loader: Allow max_framebuffers=0 to disable framebuffers
>> 
>> 
>> 
>> 2020-Dec-15:
>> 
>> firmware: dmalib: Allow sdcard to borrow channel 6
>> 
>> 
>> (I omit the kernel-only update notes.)
>> 
>> 
>> So: There are things like moving the 2711 RAM PCIe address
>> and putting channel 6 to use for the sdcard and using DMA40
>> for PWM audio. But I do not claim to understand the
>> implications.
>> 
>> 
>> NOTE: The above are in branch next as well as master.
>> 
>> 
>> 
>> The most recent tag is at:
>> 
>> https://github.com/raspberrypi/firmware/commits/1.20201201
>> 
>> This is likely what is officially distributed for general
>> use.
>> 
> 
> I found another aspect of the changes that affects dts files,
> used to produce the .dtb files: the .dts files come from their
> linux source code and . . .
> 
> The 2020-Dec-15 commit switched from linux 5.4.81 to 5.10.0 .
> Recent sequencing of kernel versions in master:
> 
> 2020-Nov-23: 5.4.79
> 2020-Dec-08: 5.4.81
> 2020-Dec-14: 5.4.81 (Yep: again. Seems to have a fix.)
> 2020-Dec-15: 5.10.0
> 2020-Dec-18: 5.10.1
> 2020-Dec-23: 5.10.2
> 2020-Dec-27: 5.10.3
> 
> If I understand right, the 5.10.?? kernels are intended to
> have more in common with their linux upstream than their
> 5.4.?? kernels did, partially via contributing to upstream.
> 



===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)