FreeBSD on AmigaOne X5000

[Al Zick]

Hi Justin,

This is amazing that you were able to get the built in ethernet working.

I just built the world and I am working on getting the kernel built.

Kind Regards,
Al




On Jan 21, 2018, at 11:39 PM, Justin Hibbits wrote:

> Hi Al,
>
> With the device tree addition of the PHY information, on the Linux
> cyrus device tree, Ethernet works just fine on FreeBSD, so there's no
> problem when using my modified tree.
>
> I also tested today loading the radeonkms driver, and it loaded just
> fine, so maybe the crash was a fluke.  It of course needs more
> testing.
>
> - Justin
>
> On Thu, Jan 18, 2018 at 8:02 PM, Al Zick  
> <al at familysafeinternet.com> wrote:
>> Hi Justin,
>>
>> I don't know if this helps, but there is work being done to get  
>> the X5000
>> built in network ports working in both AmigaOS and Linux. I know  
>> the issue
>> he had/has with the PHY hookups. Honestly, I am not sure which one  
>> of you
>> are further along, so I don't know if that helps.
>>
>> I will be installing FreeBSD on my X5000. I will let you know when  
>> I get it
>> installed and then I will start testing.
>>
>> Kind Regards,
>> Al
>>
>>
>>
>>
>>
>> On Jan 18, 2018, at 12:11 PM, Justin Hibbits wrote:
>>
>>> Hi Al,
>>>
>>> FreeBSD runs pretty well on the AmigaOne X5000, but there are some
>>> gotchas right now.  It needs a minor change to the dts in order  
>>> to use
>>> the ethernet controller, and you currently have to make an
>>> execute-in-place uImage, for 64-bit kernels anyway.
>>>
>>> The former is impossible to work around, because the device tree is
>>> just incorrect with regard to the PHY hookups (it lists TBI
>>> connections, but the AmigaOne X5000 uses rgmii, which puts all
>>> connections through dtsec0's mdio).  You can find my working device
>>> tree at https://people.freebsd.org/~jhibbits/ 
>>> cyrus_p5020_amiga2.dtb .
>>>
>>> The latter I'm currently working on, and plan to have ubldr loading
>>> 64-bit kernels in the next couple weeks, so we won't need to build
>>> uImages.  But, for now, the way I do it is:
>>>
>>> buildkernel with KERNCONF=QORIQ64
>>>
>>> Using NetBSD's 'mkubootimage' (easy enough to build on FreeBSD with
>>> some minor tweaks to the source), run:
>>>
>>> mkubootimage -A powerpc -C none -T kernel -O linux -a 0x3ffffc0 -e
>>> <entrypoint from readelf -h> -N "FreeBSD AmigaOne X5000"
>>> amiga64.uImage /path/to/built/kernel
>>>
>>> Then I can boot that image via either dhcp or sata (Be sure to  
>>> load it
>>> to 0x3ffffc0, for some reason uboot doesn't copy the image when  
>>> loaded
>>> to the default loadaddr of 0x01000000).
>>>
>>> Booting from SATA you need to create an MBR partition scheme, and  
>>> the
>>> first partition must be FAT, since uboot doesn't know how to read
>>> FreeBSD disklabels and UFS.  I made two partitions: 128MB FAT to put
>>> the kernel, ubldr, and dtb; and the rest of my disk is a BSD  
>>> disklabel
>>> volume, partitioned like a normal FreeBSD system.  You would put the
>>> dtb and uImage in the FAT partition, and set the uboot bootargs
>>> environment variable to 'vfs.root.mountfrom=ufs:/dev/ada0s2a'
>>> (assuming /dev/ada0s2a is the root you create, as my example is)
>>>
>>>
>>> As for what you can do to help, that depends on your skill set.
>>>
>>> If you're happy in the kernel:
>>> * I have some patches to drm2 so it can load the radeonkms  
>>> driver, but
>>> it crashes due to TLB synchronization issues between the two cores,
>>> that might be interesting to look at.
>>> * Performance improvements:  CPU0 is seeing a very high decrementer
>>> interrupt count, measured with vmstat -i.  I think this might be  
>>> uboot
>>> messing up the clock frequency information populating, but I'm not
>>> sure.  Maybe test that.
>>> * There are still device drivers missing for things like the XMOS  
>>> and
>>> CPLD.
>>>
>>> If you'd prefer userspace, once you have FreeBSD installed, and able
>>> to use the network:
>>> * Build a kernel with ZFS (just add "options ZFS" to the QORIQ  
>>> config,
>>> or create your own), and test building everything with poudriere.
>>> Report any bugs and panics you see.  Just hammer away.
>>> * It's pretty boringly stable up in userspace, so it's hard for  
>>> me to
>>> think of anything more.
>>>
>>> Let me know what you're interested in, and I can point you to
>>> somewhere you can help.
>>>
>>> Glad to see interest in this!
>>>
>>> - Justin
>>>
>>> On Wed, Jan 17, 2018 at 5:20 PM, Al Zick <al at familysafeinternet.com>
>>> wrote:
>>>>
>>>> Hi,
>>>>
>>>> Would it be possible to find out about how much progress has  
>>>> been made on
>>>> the FreeBSD port to the AmigaOne X5000 in the last few months  
>>>> and if
>>>> there
>>>> is anything that I can do to help?
>>>>
>>>> Kind Regards,
>>>> Al
>>>>
>>>>
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>>
>>