RE: 2.6 kernel ppc tree

RE: 2.6 kernel ppc tree

[Rod Boyce]

I downloaded the the 2.6.1 Linux kernel and compiled it for the RPX-Lite board.  I discovered that the UART driver in arch/ppc/8xx_io/ has not been ported to the 2.6 kernel otherwise I had no problems.  I have not had time to get back to the 2.6 porting effort and update the uart.c file.  If ther eis another one out there I could try it out but that is where I left my effort.  Otherwise I would guess you may not have too many more problems but I have not been able to spend much time on this.

Regards,
Rod Boyce

-----Original Message-----
From: owner-linuxppc-embedded@lists.linuxppc.org
[mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf Of Lokesh
Kumar
Sent: Wednesday, February 18, 2004 10:22 AM
To: linuxppc-embedded@lists.linuxppc.org
Subject: 2.6 kernel ppc tree



Is there a tree for ppc for 2.6 kernel, which I can download and compile for
mpc8xx based boards? Any help is welcome.

Lokesh Kumar
Wireless Matrix USA Inc.
703-262-4032


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: 2.6 kernel ppc tree

[Mike Welliington]

Rod -
   Can I ask *where* you got your 2.6.1 kernel?  I do not see it
in the Monta Vista archives, or in the archives from www.penguinppc.org.

-mike wellington
 wellington@lucent.com


Rod Boyce wrote:

>I downloaded the the 2.6.1 Linux kernel and compiled it for the RPX-Lite board.  I discovered that the UART driver in arch/ppc/8xx_io/ has not been ported to the 2.6 kernel otherwise I had no problems.  I have not had time to get back to the 2.6 porting effort and update the uart.c file.  If ther eis another one out there I could try it out but that is where I left my effort.  Otherwise I would guess you may not have too many more problems but I have not been able to spend much time on this.
>
>Regards,
>Rod Boyce
>
>-----Original Message-----
>From: owner-linuxppc-embedded@lists.linuxppc.org
>[mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf Of Lokesh
>Kumar
>Sent: Wednesday, February 18, 2004 10:22 AM
>To: linuxppc-embedded@lists.linuxppc.org
>Subject: 2.6 kernel ppc tree
>
>
>
>Is there a tree for ppc for 2.6 kernel, which I can download and compile for
>mpc8xx based boards? Any help is welcome.
>
>Lokesh Kumar
>Wireless Matrix USA Inc.
>703-262-4032
>
>
>
>


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Re: 2.6 kernel ppc tree

[Tom Rini]

On Wed, Feb 18, 2004 at 10:30:41AM +1300, Rod Boyce wrote:

> I downloaded the the 2.6.1 Linux kernel and compiled it for the RPX-Lite board.  I discovered that the UART driver in arch/ppc/8xx_io/ has not been ported to the 2.6 kernel otherwise I had no problems.  I have not had time to get back to the 2.6 porting effort and update the uart.c file.  If ther eis another one out there I could try it out but that is where I left my effort.  Otherwise I would guess you may not have too many more problems but I have not been able to spend much time on this.

The linuxppc-2.5 tree already has most of this done (as it did as of
2.6.1 or 2.6.2, I haven't re-checked the drivers).  However, head_8xx.S
still needs some updates for VM/exception changes.

--
Tom Rini
http://gate.crashing.org/~trini/

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Re: 2.6 kernel ppc tree

[Marcus Overhagen]

"Tom Rini" <trini@kernel.crashing.org> wrote:

> The linuxppc-2.5 tree already has most of this done (as it did as of
> 2.6.1 or 2.6.2, I haven't re-checked the drivers).  However, head_8xx.S
> still needs some updates for VM/exception changes.

I tried compiling 2.6.3 for a MPC850 based board today, and got the same problem
with uart.c (as well as a few other minor errors). However, I have trouble getting
the 2.5 uart.c file by bitkeeper, can somebody please send it to me by (private) email?

I also noticed that the Kconfig file, as well as the uart.c file has very few options
to support custom pin assigments, for example I couldn't configure SCC2 as
Ethernet and at the same time SCC3 as serial. Is someone working on this, or
must I do this myself?
And what about hardware handshake signals, like RTS/CTS, does anyone
have that working?

regards
Marcus


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Re: 2.6 kernel ppc tree

[Dan Malek]

Marcus Overhagen wrote:

> I tried compiling 2.6.3 for a MPC850 based board today,

OK, everyone, just wait a day or so.......

The 8xx stuff hasn't worked at all for a long time......if ever.
Tom fixed up the drivers for me, I'm working on the VM updates.

Stop trying to compile it and complaining about it because it
is known to not work properly :-)

I'll post a message when I get this stuff done.

Thanks.


	-- Dan


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Re: 2.6 kernel ppc tree

[Marcus Overhagen]

"Dan Malek" <dan@embeddededge.com> wrote:

> Marcus Overhagen wrote:
>
> > I tried compiling 2.6.3 for a MPC850 based board today,
>
> OK, everyone, just wait a day or so.......

Ok, you convinced me. I'll wait until VM updates are done :)
Thanks to Rod Boyce, who sent me the 2.5 uart.c I tried compiling.
I also noticed that some defines for enet.c were missing from commproc.h
and these errors:
| arch/ppc/kernel/entry.S(__ksymtab+0x3e0): undefined reference to `request_8xxirq'
| arch/ppc/syslib/built-in.o: In function `m8xx_calibrate_decr':
| arch/ppc/syslib/built-in.o(.init.text+0x124): undefined reference to `request_8xxirq'
| arch/ppc/syslib/built-in.o(.init.text+0x124): relocation truncated to fit: R_PPC_REL24 request_8xxirq

> The 8xx stuff hasn't worked at all for a long time......if ever.
Well, it was working in 2.4.4 as publish in ELDK 2.1 at www.denx.de
However, the uart.c driver in that package has some enhancements,
compared to the mainline 2.4.25 kernel (or it was removed for 2.4.25)
Especially the ability to configure a wide variety of different pins, and
hardware handshake.
Unfortunately, RTS handshake as implemented in 2.4.4 is not working
with the MPC850, since the MPC850 doesn't do a correct UART like
RTS signal, instead it activates /RTS only during transmit. I need to fix
that, and will wait with 2.6 until you are finished.
Luckily, MPC850 can do at least a correct /CTS handshake when bit FLC
in registert PSMR is set, and you can control /RTS in UART like fashion
by programming it as general IO pin.

> Tom fixed up the drivers for me, I'm working on the VM updates.
Thats great.

> Stop trying to compile it and complaining about it because it
> is known to not work properly :-)
Yeah, now I know :) BTW, this is not a complaint!

Marcus


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Re: 2.6 kernel ppc tree

[Dan Malek]

Marcus Overhagen wrote:

>>The 8xx stuff hasn't worked at all for a long time......if ever.
>
> Well, it was working in 2.4.4 ...


I meant in 2.6.x, as we have been discussing.  It works fine in
all 2.4 and prior releases.


	-- Dan


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RE: 2.6 kernel ppc tree

[Rod Boyce]

Tom,

You are correct I'm sure I have no time on this and I'm trying to get a image to build so I can see what is missing and then start debugging the image.  I have to start somewhere and this is where I started.  I also see there is a newer version so I will make another attempt in the next few day with that.

Rod Boyce

-----Original Message-----
From: Tom Rini [mailto:trini@kernel.crashing.org]
Sent: Thursday, February 19, 2004 8:03 AM
To: Rod Boyce
Cc: Lokesh Kumar; linuxppc-embedded@lists.linuxppc.org
Subject: Re: 2.6 kernel ppc tree


That issue in particular has been fixed in later versions.  But
commenting out the ret_from_interrupt lines isn't quite enough to get
the platform booting :)

--
Tom Rini
http://gate.crashing.org/~trini/

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: 2.6 kernel ppc tree

[Rod Boyce]

Wow that was great I got a lot further once I copied the 2.5 kernel uart.c file across.

I had to comment out both referances to ret_from_intercept in the head_8xx.S file I cannot see what is going on there.  I then got to this:
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/ppc/kernel/built-in.o: In function `DoSyscall':
arch/ppc/kernel/entry.S(.data+0x350): undefined reference to `sys_pciconfig_iobase'
make: *** [.tmp_vmlinux1] Error 1

I have not more time to spend on this and track down the PCI issues.
I am using a miniumal config file I will be happy to send to any body who is interested.

Regards,
Rod Boyce

-----Original Message-----
From: Tom Rini [mailto:trini@kernel.crashing.org]
Sent: Wednesday, February 18, 2004 11:20 AM
To: Rod Boyce
Cc: Lokesh Kumar; linuxppc-embedded@lists.linuxppc.org
Subject: Re: 2.6 kernel ppc tree


On Wed, Feb 18, 2004 at 10:30:41AM +1300, Rod Boyce wrote:

> I downloaded the the 2.6.1 Linux kernel and compiled it for the RPX-Lite board.  I discovered that the UART driver in arch/ppc/8xx_io/ has not been ported to the 2.6 kernel otherwise I had no problems.  I have not had time to get back to the 2.6 porting effort and update the uart.c file.  If ther eis another one out there I could try it out but that is where I left my effort.  Otherwise I would guess you may not have too many more problems but I have not been able to spend much time on this.

The linuxppc-2.5 tree already has most of this done (as it did as of
2.6.1 or 2.6.2, I haven't re-checked the drivers).  However, head_8xx.S
still needs some updates for VM/exception changes.

--
Tom Rini
http://gate.crashing.org/~trini/

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: 2.6 kernel ppc tree

[Tom Rini]

On Wed, Feb 18, 2004 at 02:13:21PM +1300, Rod Boyce wrote:

> Wow that was great I got a lot further once I copied the 2.5 kernel uart.c file across.
>
> I had to comment out both referances to ret_from_intercept in the head_8xx.S file I cannot see what is going on there.  I then got to this:
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> arch/ppc/kernel/built-in.o: In function `DoSyscall':
> arch/ppc/kernel/entry.S(.data+0x350): undefined reference to `sys_pciconfig_iobase'
> make: *** [.tmp_vmlinux1] Error 1
>
> I have not more time to spend on this and track down the PCI issues.

That issue in particular has been fixed in later versions.  But
commenting out the ret_from_interrupt lines isn't quite enough to get
the platform booting :)

--
Tom Rini
http://gate.crashing.org/~trini/

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

RE: 2.6 kernel ppc tree

[Rod Boyce]

I downloaded it from www.kernel.org I was very surprised how far I got but there you go.

Regards,
Rod Boyce

-----Original Message-----
From: Mike Welliington [mailto:wellington@lucent.com]
Sent: Wednesday, February 18, 2004 10:47 AM
To: Rod Boyce
Cc: Lokesh Kumar; linuxppc-embedded@lists.linuxppc.org
Subject: Re: 2.6 kernel ppc tree


Rod -
   Can I ask *where* you got your 2.6.1 kernel?  I do not see it
in the Monta Vista archives, or in the archives from www.penguinppc.org.

-mike wellington
 wellington@lucent.com


Rod Boyce wrote:

>I downloaded the the 2.6.1 Linux kernel and compiled it for the RPX-Lite board.  I discovered that the UART driver in arch/ppc/8xx_io/ has not been ported to the 2.6 kernel otherwise I had no problems.  I have not had time to get back to the 2.6 porting effort and update the uart.c file.  If ther eis another one out there I could try it out but that is where I left my effort.  Otherwise I would guess you may not have too many more problems but I have not been able to spend much time on this.
>
>Regards,
>Rod Boyce
>
>-----Original Message-----
>From: owner-linuxppc-embedded@lists.linuxppc.org
>[mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf Of Lokesh
>Kumar
>Sent: Wednesday, February 18, 2004 10:22 AM
>To: linuxppc-embedded@lists.linuxppc.org
>Subject: 2.6 kernel ppc tree
>
>
>
>Is there a tree for ppc for 2.6 kernel, which I can download and compile for
>mpc8xx based boards? Any help is welcome.
>
>Lokesh Kumar
>Wireless Matrix USA Inc.
>703-262-4032
>
>
>
>


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

2.6 kernel ppc tree

[Lokesh Kumar]

Is there a tree for ppc for 2.6 kernel, which I can download and compile for
mpc8xx based boards? Any help is welcome.

Lokesh Kumar
Wireless Matrix USA Inc.
703-262-4032


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/