Re: When will FreeBSD support RPI5?

On 13 Jan 2024, at 12:32, Mark Millard wrote:

> On Jan 13, 2024, at 07:38, Doug Rabson <dfr@rabson.org> wrote:
>
>> Getting back to the RPI 5, with a tweak to arm/broadcom/bcm2835bcm2835_vcbus.c to treat the memory config the same as RPI 4 and to dev/sdhci/sdhci_fdt.c to treat the RPI 5 sdhci controllers as generic, I can boot to multiuser mode using the EDK2 firmware from https://github.com/worproject/rpi5-uefi with ACPI/Device Tree mode set to Both.
>
> What does FreeBSD do with "Both"? Does it actually use some ACPI
> and some Device Tree? Or does it just use ACPI? Does your
> combination do anything different than just using ACPI?
>
>> This does not have working PCIe or ethernet yet - I think ethernet ought to work since we seem to have a matching driver in the tree in dev/cadence.
>
> Sounds like the same status as booting just ACPI with no such
> adjustments too bcm2835bcm2835_vcbus.c or sdhci_fdt.c ?
>
> I think Mike Karels plans on investigating getting Ethernet
> going based on cgem . I've no clue if this is ACPI, DeviceTree,
> or both.

The cadence/cgem driver uses FDT.  I haven't looked at details yet.  The addition
might be as simple as adding a compat string.  Hopefully it doesn't require major
surgery.  I just ordered an RPi 5 (8 GB); it will take a while to be delivered.

		Mike
>
> My usage has been pure ACPI, no software adjustments specific
> to getting the RPi5 operational. Use of a USB3 Ethernet dongle.
>
> ===
> Mark Millard
> marklmi at yahoo.com