NetBSD on ARM2 and ARM3 based machines (NetBSD/arm26)

Peter Teichmann | 8 Feb 2005 23:55

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boot26 on R260

Hi,

recently I got a R260 with 26 MHz ARM3, 16MB RAM, Ether1, Acorn SCSI+200MB 
(not supported, I know), and a Colour Card from Ebay. As the original Risc IX 
is not installed anymore (anyone knows a source?) I thought I should give 
NetBSD a try.

A tried the boot26 from the 2.0 directory, and the install kernel. Quite often 
I get complaints about page XXX not free, but sometimes not. But it does not 
help, it does not boot the kernel but just resets the machine. What am I 
doing wrong?

Thank you for your help,
Peter Teichmann

JUSTIN STRINGFELLOW | 12 Feb 2005 13:24

Re: boot26 on R260

> Ebay. As the original Risc IX 
> is not installed anymore (anyone knows a source?) I

Yes.

I've been meaning to get my R260 down from the loft
for a while - it's got Risc IX 1.21 on it, and I've
sucecssfully duplicated the OS onto a spare disk. If
it still boots, I can dd the disk off to an image, if
you want.

Michael | 9 Feb 2005 00:34

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Re: boot26 on R260


Hello,

> recently I got a R260 with 26 MHz ARM3, 16MB RAM, Ether1, Acorn 
> SCSI+200MB
> (not supported, I know), and a Colour Card from Ebay. As the original 
> Risc IX
> is not installed anymore (anyone knows a source?) I thought I should 
> give
> NetBSD a try.
>
> A tried the boot26 from the 2.0 directory, and the install kernel. 
> Quite often
> I get complaints about page XXX not free, but sometimes not. But it 
> does not
> help, it does not boot the kernel but just resets the machine. What am 
> I
> doing wrong?

Nothing. To get rid of the page XXX not free messages you'll have to 
*unplug any modules you don't really need, maybe *rmtidy helps too ( on 
my A5000 with 8MB I never got there )
Did you try BBBB?

good luck
Michael

Peter Teichmann | 9 Feb 2005 01:52

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Re: boot26 on R260

> Nothing. To get rid of the page XXX not free messages you'll have to
> *unplug any modules you don't really need, maybe *rmtidy helps too ( on
> my A5000 with 8MB I never got there )
> Did you try BBBB?

No, but I got a clue from reading a BBBB documentation. I got to supervisor 
mode by pressing shift and keypad-*, and switched to a 256 colour mode before 
starting boot26. That helped. Unfortunately I get now infinite messages with 
the 2.0 installation kernel:

Stray IRQ, status=0xf1f1, spl=0, mask=0x0

The 1.62 installation kernel does not show these messages, but seems not to 
recognise the Ether1 card. Utility menu/Configure network does not let me 
configure a network card, it does not find one.

During kernel startup, it says:

podule <0000>:<0000> at podulebus0 slot 0 not configured

This is the Ether1. I thought it is supported?

Peter Teichmann

Ben Harris | 9 Feb 2005 11:49

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Re: boot26 on R260

On Wed, 9 Feb 2005, Peter Teichmann wrote:

>> Nothing. To get rid of the page XXX not free messages you'll have to
>> *unplug any modules you don't really need, maybe *rmtidy helps too ( on
>> my A5000 with 8MB I never got there )
>> Did you try BBBB?
>
> No, but I got a clue from reading a BBBB documentation. I got to supervisor
> mode by pressing shift and keypad-*, and switched to a 256 colour mode before
> starting boot26. That helped. Unfortunately I get now infinite messages with
> the 2.0 installation kernel:
>
> Stray IRQ, status=0xf1f1, spl=0, mask=0x0

Odd.  I must actually get a working acorn26 machine again so I can test 
this...

> The 1.62 installation kernel does not show these messages, but seems not to
> recognise the Ether1 card. Utility menu/Configure network does not let me
> configure a network card, it does not find one.
>
> During kernel startup, it says:
>
> podule <0000>:<0000> at podulebus0 slot 0 not configured
>
> This is the Ether1. I thought it is supported?

The Ether1 is supported in general, but your one is apparently identifying 
itself as a TUBE host interface.  This suggests that its PROM is dead. 
Does it work under RISC OS?

(Continue reading)

Peter Teichmann | 9 Feb 2005 20:44

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Re: boot26 on R260

Am Mittwoch, 9. Februar 2005 11:49 schrieb Ben Harris:
> On Wed, 9 Feb 2005, Peter Teichmann wrote:
> > The 1.62 installation kernel does not show these messages, but seems not
> > to recognise the Ether1 card. Utility menu/Configure network does not let
> > me configure a network card, it does not find one.
> >
> > During kernel startup, it says:
> >
> > podule <0000>:<0000> at podulebus0 slot 0 not configured
> >
> > This is the Ether1. I thought it is supported?
>
> The Ether1 is supported in general, but your one is apparently identifying
> itself as a TUBE host interface.  This suggests that its PROM is dead.
> Does it work under RISC OS?

I thought the Ether1 does not have a PROM? I read somewhere that it can not be 
idetified by executing "podules" in RISC OS. I am not completely sure if it 
works under RISC OS. "e1info" discoveres that it is in slot 0 and has a 
hardware address of 00:00:a4:00:04:ec. "ifconfig -a" shows some stuff about 
the et0 interface. I can ping the address associated to the et0, but not 
addresses outside which is strange. It is connected to a twisted pair network 
via a transceiver at the AUI port.

Peter Teichmann

Ben Harris | 9 Feb 2005 22:05

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Re: boot26 on R260

On Wed, 9 Feb 2005, Peter Teichmann wrote:

> I thought the Ether1 does not have a PROM?

It does, but it's very small and only contains the extended expansion card 
ID, the Ethernet address and a few other bits.  In particular, it doesn't 
have a chunk directory, so there's no podule description (for *Podules) or 
driver module.

> I am not completely sure if it
> works under RISC OS. "e1info" discoveres that it is in slot 0 and has a
> hardware address of 00:00:a4:00:04:ec.

That should be enough for NetBSD's ei(4) to at least attach to it.  I'm 
not sure there's much I can do to help without reviving my building and 
testing infrastructure here, which isn't going to happen for at least a 
week or two.

--

-- 
Ben Harris                                                   <bjh21 <at> NetBSD.org>
Portmaster, NetBSD/acorn26           <URL:http://www.NetBSD.org/Ports/acorn26/>

Peter Teichmann | 9 Feb 2005 23:51

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Re: boot26 on R260

Am Mittwoch, 9. Februar 2005 22:05 schrieb Ben Harris:
> > I am not completely sure if it
> > works under RISC OS. "e1info" discoveres that it is in slot 0 and has a
> > hardware address of 00:00:a4:00:04:ec.
>
> That should be enough for NetBSD's ei(4) to at least attach to it.  I'm
> not sure there's much I can do to help without reviving my building and
> testing infrastructure here, which isn't going to happen for at least a
> week or two.

Extremely strange, but suddenly the NetBSD 1.6.2 installation kernel 
discoveres the Ether1. I changed nothing, and do not know what the difference 
is. But after configuring the interface it says "no carrier", and the card 
does not work properly in RISC OS either. I am using the AUI port with a 
10base2 transceiver. If I ping from elsewhere to the R260, I can see the 
"receive" LED on the transceiver blink (ok that does not say anything about 
that the R260's IP is known in the network). If I ping from the R260 to 
elsewhere, the "transmit" LED does not blink. Can it be that I need to tell 
the Ether1 to use the AUI port?

Peter

Ben Harris | 10 Feb 2005 12:07

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Re: boot26 on R260

On Wed, 9 Feb 2005, Peter Teichmann wrote:

> Extremely strange, but suddenly the NetBSD 1.6.2 installation kernel
> discoveres the Ether1. I changed nothing, and do not know what the difference
> is. But after configuring the interface it says "no carrier", and the card
> does not work properly in RISC OS either. I am using the AUI port with a
> 10base2 transceiver. If I ping from elsewhere to the R260, I can see the
> "receive" LED on the transceiver blink (ok that does not say anything about
> that the R260's IP is known in the network). If I ping from the R260 to
> elsewhere, the "transmit" LED does not blink. Can it be that I need to tell
> the Ether1 to use the AUI port?

If you haven't done so then yes, you do.  According to ei(4), you want to 
change LK3--LK8 and LK10 on the Ether1.  The instructions that come with 
the Ether1 give more details.

--

-- 
Ben Harris                                                   <bjh21 <at> NetBSD.org>
Portmaster, NetBSD/acorn26           <URL:http://www.NetBSD.org/Ports/acorn26/>

Richard Earnshaw | 10 Feb 2005 23:35

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Picon

Re: nfsroot install

On Thu, 10 Feb 2005 22:55:38 +0100, Peter Teichmann wrote:
> Ok, after changing the jumpers the network card works, and I can ping other 
> computers in the network and vice versa. But as the Acorn SCSI card is not 
> supported, I guess my only option is a nfsroot install.

I did once get the Acorn SCSI card working (there's a PR with a patch in 
it somewhere).  But since it's never been updated in a long time it's 
probably rather bit-rotten by now.  Sadly, I'm no longer using SCSI on 
that machine, so I've no idea what needs doing to bring it back to life.

R.

Peter Teichmann | 10 Feb 2005 22:55

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nfsroot install

Ok, after changing the jumpers the network card works, and I can ping other 
computers in the network and vice versa. But as the Acorn SCSI card is not 
supported, I guess my only option is a nfsroot install.

Is that possible? How can it be done?

Can I use a standard installation kernel to install to a nfsroot? But how can 
I tell sysinst to install to a (possibly already mounted) nfsroot? Or can I 
just explode all the sets to the nfsroot?

Once I have installed it, how can I boot the kernel so that it uses the 
nfsroot? How do I pass arguments to boot26? Is there a boot26 documentation 
somewhere?

If nfsroot is not possible, which harddisk interface can be recommended to get 
for use with NetBSD on the R260?

Thank you for your help!
Peter Teichmann

Ben Harris | 10 Feb 2005 23:15

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Re: nfsroot install

On Thu, 10 Feb 2005, Peter Teichmann wrote:

> Can I use a standard installation kernel to install to a nfsroot? But how can
> I tell sysinst to install to a (possibly already mounted) nfsroot? Or can I
> just explode all the sets to the nfsroot?

The latter is how I've always done it.  It usually seems to work.

> Once I have installed it, how can I boot the kernel so that it uses the
> nfsroot? How do I pass arguments to boot26? Is there a boot26 documentation
> somewhere?

The kernel will probably prompt for a root device if it hasn't got one 
compiled in.  If you want to nail down the root device, you'll probably 
need to compile your own kernel.  boot26 is documented in its manual page; 
see <http://netbsd.gw.com/cgi-bin/man-cgi?boot26+.acorn26+NetBSD-1.6.2>.

--

-- 
Ben Harris                                                   <bjh21 <at> NetBSD.org>
Portmaster, NetBSD/acorn26           <URL:http://www.NetBSD.org/Ports/acorn26/>

Michael | 9 Feb 2005 03:11

Picon

Re: boot26 on R260


Hello,

>> Nothing. To get rid of the page XXX not free messages you'll have to
>> *unplug any modules you don't really need, maybe *rmtidy helps too ( 
>> on
>> my A5000 with 8MB I never got there )
>> Did you try BBBB?
>
> No, but I got a clue from reading a BBBB documentation. I got to 
> supervisor
> mode by pressing shift and keypad-*, and switched to a 256 colour mode 
> before
> starting boot26. That helped. Unfortunately I get now infinite 
> messages with
> the 2.0 installation kernel:
I switched to supervisor too, but I didn't change to 256 colours ( 
stuck to 16 to save memory ) - I'll try that too.

> Stray IRQ, status=0xf1f1, spl=0, mask=0x0
>
> The 1.62 installation kernel does not show these messages, but seems 
> not to
> recognise the Ether1 card. Utility menu/Configure network does not let 
> me
> configure a network card, it does not find one.
Hmm, last time I tried (around 1.5 or so) it didn't find my ANT Ether3 
maybe it will work now.

good luck

(Continue reading)

Ben Harris | 9 Feb 2005 11:51

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Re: boot26 on R260

On Tue, 8 Feb 2005, Michael wrote:

> I switched to supervisor too, but I didn't change to 256 colours ( stuck to 
> 16 to save memory ) - I'll try that too.

256 colours are required because last time I looked at it the NetBSD 
raster console code couldn't support little-endian framebuffers at <8bpp. 
It's possible that this is fixed now.

>> Stray IRQ, status=0xf1f1, spl=0, mask=0x0
>> 
>> The 1.62 installation kernel does not show these messages, but seems not to
>> recognise the Ether1 card. Utility menu/Configure network does not let me
>> configure a network card, it does not find one.
> Hmm, last time I tried (around 1.5 or so) it didn't find my ANT Ether3 - - 
> maybe it will work now.

If it doesn't, please submit a PR.

--

-- 
Ben Harris                                                   <bjh21 <at> NetBSD.org>
Portmaster, NetBSD/acorn26           <URL:http://www.NetBSD.org/Ports/acorn26/>

Michael | 9 Feb 2005 14:15

Picon

Re: boot26 on R260


Hello,

>> I switched to supervisor too, but I didn't change to 256 colours ( 
>> stuck to 16 to save memory ) - I'll try that too.
>
> 256 colours are required because last time I looked at it the NetBSD 
> raster console code couldn't support little-endian framebuffers at 
> <8bpp. It's possible that this is fixed now.
Maybe it is, if not I could probably do it - spent the last few months 
hacking console/framebuffer drivers on other platforms. But this 
requires getting it to boot.

>>> Stray IRQ, status=0xf1f1, spl=0, mask=0x0
>>> The 1.62 installation kernel does not show these messages, but seems 
>>> not to
>>> recognise the Ether1 card. Utility menu/Configure network does not 
>>> let me
>>> configure a network card, it does not find one.
>> Hmm, last time I tried (around 1.5 or so) it didn't find my ANT 
>> Ether3 - - maybe it will work now.
>
> If it doesn't, please submit a PR.
Last time I tried ( ages ago ) /some/ Ether3 boards were supported but 
not mine. Do these boards just share the name for some reason or is the 
hardware sufficiently similar to be supported by a single driver?

have fun
Michael

(Continue reading)

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