Re: HiFive Unmatched support

From: <tuexen_at_freebsd.org>
Date: Fri, 13 Aug 2021 23:29:11 +0200
> On 13. Aug 2021, at 22:44, Mitchell Horne <mhorne_at_freebsd.org> wrote:
> 
> On Fri, Aug 13, 2021 at 4:47 PM <tuexen_at_freebsd.org> wrote:
>> 
>>> On 8. Aug 2021, at 22:35, Mitchell Horne <mhorne_at_FreeBSD.org> wrote:
>>> 
>>> On Sun, Aug 8, 2021 at 5:13 PM <tuexen_at_freebsd.org> wrote:
>>>> 
>>>>> On 8. Aug 2021, at 21:59, Zaphod Beeblebrox <zbeeble_at_gmail.com> wrote:
>>>>> 
>>>>> I've made install images _at_ https://nextcloud.towernet.ca/s/2XJrwRSeZRojswY
>>>> Thanks a lot.
>>>> 
>>>> Does this mean that the HiFive Unmatched can boot from USB, then install on the SSD and
>>>> then it boots from the SSD? I was assuming that you need something on the SD card (like
>>>> uboot) and configure it to boot from USB or SSD.
>>>> 
>>> 
>>> A copy of u-boot is still required, but you can just use the SD card
>>> shipped with the board for this. It has a boot preference of NVMe >
>>> USB > SD. So, you can copy the FreeBSD installer images to a USB, and
>>> go through the traditional installation to set up your SSD. Upon
>>> reboot you will be in the new system.
>>> 
>>> Eventually we will gain the ability to write a new u-boot to the SPI
>>> flash, but there is still some work ahead for this.
>>> 
>>> Since jrtc27's patches just landed, this coming Thursday's 14.0
>>> snapshot should include everything needed, likely including the
>>> aforementioned superpage fix (D31460).
>> I just installed yesterdays snapshot and it works great. However, when
>> running 'shutdown -r now', the system powers down. Is this a known issue
>> and is there a workaround?
>> 
> 
> This is a known issue, unfortunately without any workaround yet. The
> problem is a lack of any reset mechanism in the firmware stack, so the
> SBI system reset interface just performs a poweroff. So it is not a
> FreeBSD issue, and we will have to wait for a solution upstream.
Thanks for the explanation.
> 
> I found a thread on the SiFive forums discussing this:
> https://forums.sifive.com/t/reboot-command/4721
Thanks for the pointer.

So for now I have to walk to the machine to bring up a new kernel...

Best regards
Michael
> 
>> Best regards
>> Michael
>>> 
>>> Cheers,
>>> Mitchell
>>> 
>>> 
>>>> Best regards
>>>> Michael
>>>>> 
>>>>> These don't include the most recent bug I found in superpages which jrtc27 fixed --- but turn off superpages in loader.conf and you'll be good...
>>>>> 
>>>>> vm.pmap.superpages_enabled=0 in loader.conf will fix this.
>>>>> 
>>>>> On 2021-08-08 14:58, tuexen_at_freebsd.org wrote:
>>>>>> Dear all,
>>>>>> 
>>>>>> according to https://wiki.freebsd.org/riscv/HiFiveUnmatched support for the
>>>>>> HiFive Unmatched is now support by FreeBSD. This is great!
>>>>>> 
>>>>>> Are there any instructions available how to install FreeBSD on an SSD such
>>>>>> that it runs from that SSD? Any hints welcome.
>>>>>> 
>>>>>> Best regards
>>>>>> Michael
>>>>>> 
>>>> 
>>>> 
>> 
Received on Fri Aug 13 2021 - 21:29:11 UTC

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