Re: Raspbery Pi support (release notes/wiki page) update?

Hi Mark,

I just noticed an RPI5 with 16GB RAM became available [1]. Which triggers my interest in an upgrade of my current RPI4/8GB used to build aarch64 ports.

I see that you have quite some experience in setting up the RPI5 with knowledge expressed in several emails.
Would you mind to setup a https://wiki.freebsd.org/arm/RPI5 page and collect your knowledge/experience there?

When RPI5 works well in the future we can then merge the information into https://wiki.freebsd.org/arm/Raspberry%20Pi.

Regards,
Ronald.

[1] https://www.raspberrypi.com/news/16gb-raspberry-pi-5-on-sale-now-at-120/
 
Van: Mark Millard <marklmi@yahoo.com>
Datum: maandag, 2 december 2024 22:43
Aan: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>
CC: freebsd-arm@freebsd.org
Onderwerp: Re: Raspbery Pi support (release notes/wiki page) update?
> 
> On Dec 2, 2024, at 12:43, Bjoern A. Zeeb <bzeeb-lists@lists.zabbadoz.net> wrote:
> 
> > On Wed, 27 Nov 2024, Mark Millard wrote:
> >
> > I assume that all also means there's no way on FreeBSD to update the
> > eeprom contents on the RPi4/5[1] (contents replaced the bootcode.bin on
> > older PIs.)
> 
> I update the EEPROM's via booting a standard RaspiOS64 (my abbreviation).
> That includes updating some defaults/definitions that can be stored in
> the EEPROM. (For example, I enable more debug output than is the
> default. That includes enabling BOOT_UART .)
> 
> There are commands like: sudo -E rpi-eeprom-config --edit
> 
> I'm  not aware of FreeBSD having any such software, even via the ports
> tree.
> 
> However, the description of the command is:
> 
> QUOTE
> Editing the current bootloader configuration
> The following command loads the current bootloader configuration into a text editor. When the editor is closed, rpi-eeprom-configapplies the updated configuration to latest available bootloader release and uses rpi-eeprom-update to schedule an update when the system is rebooted:
> END QUOTE
> 
> In essence doing a (after the edit): sudo rpi-eeprom-update -a
> 
> I do not have the references handy, but as I remember, this puts a
> file in the msdosfs that, if found at (re)boot, is automatically
> used to do the EEPROM update, well before U-boot is involved.
> 
> So: putting a correctly formed file in the right place with the
> right name for a reboot to pick up is basic to the EEPROM update
> operation.
> 
> The EEPROM contains the bootloader. The RPi5B has less that goes
> in the msdosfs (on the microsd card I use to boot the RPi5 via
> a separate USB3 drive):
> 
> # find /RPi5-edk2/ -print
> /RPi5-edk2/
> /RPi5-edk2/RPI_EFI.fd
> /RPi5-edk2/config.txt
> /RPi5-edk2/bcm2712-rpi-5-b.dtb
> 
> Nothing analogous to start4*.elf or fixup4*.dat is involved.
> 
> # more /RPi5-edk2/config.txt
> armstub=RPI_EFI.fd
> device_tree_address=0x1f0000
> device_tree_end=0x210000
> 
> # Force 32 bpp framebuffer allocation.
> framebuffer_depth=32
> 
> # Disable compensation for displays with overscan.
> disable_overscan=1
> 
> # Force maximum USB power regardless of the power supply.
> usb_max_current_enable=1
> 
> # Force maximum CPU speed.
> force_turbo=1
> 
> #
> # Local additions:
> enable_uart=1
> uart_2ndstage=1
> dtdebug=1
> disable_commandline_tags=1
> #
> [pi5]
> over_voltage_delta=100000
> arm_freq=2600
> [all]
> 
> > /bz
> >
> >
> > [1] https://github.com/raspberrypi/rpi-eeprom/tree/master/
> 
> Releases: https://github.com/raspberrypi/rpi-eeprom/releases
> 
> Tagged: https://github.com/raspberrypi/rpi-eeprom/tags
> 
> (More is tagged than is eventually declared to also be a
> release.)
> 
> ===
> Mark Millard
> marklmi at yahoo.com
> 
>  
> 
> 
>