Re: pi zero

[Alan Corey <alan01346%gmail.com@localhost>]

A Zero is Arm 6, not sure how NetBSD handles them.  In Linux, cat
/proc/cpuinfo shows

processor       : 0
model name      : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS        : 697.95
Features        : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xb76
CPU revision    : 7

Hardware        : BCM2835
Revision        : 9000c1
Serial          : 0000000084b8c097

---------- whereas on a Pi the cores are Armv7 instead:

processor       : 3
model name      : ARMv7 Processor rev 4 (v7l)
BogoMIPS        : 76.80
Features        : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xd03
CPU revision    : 4

Hardware        : BCM2835
Revision        : a22082
Serial          : 0000000065283266
-----------
There's no neon on a zero among others.




On 8/2/19, Rin Okuyama <rokuyama.rk%gmail.com@localhost> wrote:
> Both 9.0_BETA and 9.99.2 boot fine for my Zero W.
>
> Can you try to copy bcm2835-rpi-zero.dtb to bcm2835-rpi-zero-w.dtb
> in the boot partition? c.f.
>
> http://mail-index.netbsd.org/port-arm/2019/07/31/msg005994.html
>
> If this resolves your problem, we need to consider a workaround to
> replace zero-w.dtb with zero.dtb for netbsd-9 at least...
>
> Thanks,
> rin
>
> On 2019/08/02 20:40, Nick Hudson wrote:
>> On 01/08/2019 13:17, Patrick Welche wrote:
>>> On Thu, Aug 01, 2019 at 01:01:44PM +0100, Patrick Welche wrote:
>>>> On Thu, Aug 01, 2019 at 12:27:28PM +0100, Patrick Welche wrote:
>>>>> Just tried 9.99.2 on a pi zero w and see a rainbow. On a /amd64 box I
>>>>>
>>>>>    sh build.sh -j20 -m evbarm -a earmv6hf -r -D /usr/export/zero
>>>>> release
>>>>>
>>>>> and dd the resulting rpi_inst.img on a card. Was there anything
>>>>> else that needs doing? (Pretty sure I hadn't done anything else
>>>>> last time, but saw green console messages with a probably 8.99.43
>>>>> vintage rpi_inst.img)
>>>>
>>>> Rainbow also dd'ing
>>>>
>>>> nyftp.netbsd.org/pub/NetBSD-daily/HEAD/201908010020Z/evbarm-earmv6hf/binary/gzimg/rpi_inst.img.gz
>>>
>>> However,
>>>
>>>
>>> http://nyftp.netbsd.org/pub/NetBSD-daily/netbsd-8/201907301550Z/evbarm-earmv6hf/binary/gzimg/rpi_inst.img.gz
>>>
>>> boots fine!
>>>
>>> So, some sort of regression in -current...
>>
>> It would be great if you could bisect to find out which change broke it.
>>
>> Thanks,
>> Nick
>>
>


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