kernel versions

kernel versions

[Tobin C. Harding]

Recently the kernel version on the github
repository did not match up with the master branch of

https://kernel.googlesource.com/pub/scm/linux/kernel/git/powerpc/linux

Specifically, github was hosting v4.10-rc5 while master had
v4.10-rc8. All the while Linus' mainline was at v4.11-rc1.

Was this an anomaly or is there a technical reason please? While
writing this I see that perhaps I should have checked the other
branches (fixes, next, test).

thanks,
Tobin.

Re: kernel versions

[Daniel Axtens]

Hi Tobin,

> Recently the kernel version on the github
> repository did not match up with the master branch of
>
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/powerpc/linux
>
> Specifically, github was hosting v4.10-rc5 while master had
> v4.10-rc8. All the while Linus' mainline was at v4.11-rc1.
>
> Was this an anomaly or is there a technical reason please? While
> writing this I see that perhaps I should have checked the other
> branches (fixes, next, test).

These are all managed by different people, and none of them are managed
by any of the linuxppc-dev folk.

Sorry I can't be more helpful.

Regards,
Daniel

>
> thanks,
> Tobin.

Kernel versions

[linuxppc]

Is there a linuxppc-2.6 kernel tree or are they still using the linuxppc-2.5
tree?

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Re: Kernel versions

[Giuliano Pochini]

On Fri, 2 Jul 2004, linuxppc wrote:

> Is there a linuxppc-2.6 kernel tree or are they still using the
> linuxppc-2.5 tree?

The official 2.6.7 kernel works just fine on ppc machines.


--
Giuliano.

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Re: Kernel versions

[Wolfgang Denk]

In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
>
> The official 2.6.7 kernel works just fine on ppc machines.

Please define "ppc machines". It doesn't work on most of the  systems
we have in the lab (like MPC8xx or MPC5200 etc.)

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
It is easier to write an incorrect program than understand a  correct
one.

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Re: Kernel versions

[Giuliano Pochini]

On Fri, 2 Jul 2004, Wolfgang Denk wrote:

> > The official 2.6.7 kernel works just fine on ppc machines.
>
> Please define "ppc machines". It doesn't work on most of the  systems
> we have in the lab (like MPC8xx or MPC5200 etc.)

The question was: "Is there a linuxppc-2.6 kernel tree or are they
still using the linuxppc-2.5 tree?".  "They" isn't a good definition
of what machines (or people ?) he was referring to.  I guessed he
meant the majority of ppc machines.


--
Giuliano.

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Re: Kernel versions

[Gary Thomas]

On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> >
> > The official 2.6.7 kernel works just fine on ppc machines.
>
> Please define "ppc machines". It doesn't work on most of the  systems
> we have in the lab (like MPC8xx or MPC5200 etc.)

Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
Macs do use the PowerPC CPU.  Too many folks simply equate the two...

--
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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Re: Kernel versions

[Benjamin Herrenschmidt]

On Fri, 2004-07-02 at 10:56, Gary Thomas wrote:
> On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> > In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> > >
> > > The official 2.6.7 kernel works just fine on ppc machines.
> >
> > Please define "ppc machines". It doesn't work on most of the  systems
> > we have in the lab (like MPC8xx or MPC5200 etc.)
>
> Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
> Macs do use the PowerPC CPU.  Too many folks simply equate the two...

Then send patches upstream. It's plain wrong to reproduce what we
had in 2.4 letting all sort of stuffs pile up in the "ppc" trees
that never get sent upstream.

I tend to think that pretty much everything including fancy board
support should be sent to lkml for comment & proposed upstream right
away.

Ben.


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Re: Kernel versions

[David Woodhouse]

On Tue, 2004-07-06 at 10:08 -0500, Benjamin Herrenschmidt wrote:
> On Fri, 2004-07-02 at 10:56, Gary Thomas wrote:
> > On Fri, 2004-07-02 at 08:54, Wolfgang Denk wrote:
> > > In message <Pine.LNX.4.58.0407021623360.22661@denise.shiny.it> you wrote:
> > > >
> > > > The official 2.6.7 kernel works just fine on ppc machines.
> > >
> > > Please define "ppc machines". It doesn't work on most of the  systems
> > > we have in the lab (like MPC8xx or MPC5200 etc.)

There was a fair amount of MPC5200 code merged recently. MPC8xx
apparently isn't far off working either.

> > Indeed.  Not all "PPC machines" are Apple MacIntosh systems, although
> > Macs do use the PowerPC CPU.  Too many folks simply equate the two...

Amongst the "PPC machines" on which I have 2.6 running are mpc8265,
mpc8560 and a dual 745x machine with MV64360 chipset -- although the
latter isn't merged into Linus' tree yet.

It's not _just_ working on macs.

> I tend to think that pretty much everything including fancy board
> support should be sent to lkml for comment & proposed upstream right
> away.

Works for me.

--
dwmw2


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Re: Queston about Walnut

[Wolfgang Denk]

In message <000e01c388dc$eb525510$0202a8c0@homevl9biy3v7e> you wrote:
>
> > Who gave you such (obviously wrong) instructions?
>
>         I take the example of u-boot to create the "uImage" and download it
> to the board.

Please show me which U-Boot document uses 0x00400000 as load or entry
point address so I can fix this immediately. It is WRONG  and  CANNOT
work.

> > For PowerPC systems, both  Load  Address  and  Entry  Point  must  be
> > specified as 0.
>
>         I have tried 0 before. But I get an exception in return. Could you
> kindly give me some instructions how to run a kernel on this board?

Please start by giving a precise description of  what  you  did.  and
which error messages you got.

You "get an exception" - when? When running "mkimage"?  When  booting
the kernel? Which sort of exception? What is the exact error message?
Please include a complete log of your actions and all output.

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Totally illogical, there was no chance.
	-- Spock, "The Galileo Seven", stardate 2822.3

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Re: Queston about Walnut

[Jacky Lam]

> > > Who gave you such (obviously wrong) instructions?
> >
> >         I take the example of u-boot to create the "uImage" and download
it
> > to the board.
>
> Please show me which U-Boot document uses 0x00400000 as load or entry
> point address so I can fix this immediately. It is WRONG  and  CANNOT
> work.

    I take the "step" from u-boot's README file only. Because I got an
exception, I try to load it to other address. I use 0x00400000 because
zImage seems to be loaded at there....anyway, just a guess.

>
> Please start by giving a precise description of  what  you  did.  and
> which error messages you got.

    Here is the exact step that I have done so far:

    <Compile toolcahin by crosstools>
    <Patch 2.4.22 kernel with patch on
http://www.kernel.org/pub/linux/kernel/ports/ppc/2.4/linuxppc-2.4.22.patch.bz2>
    <Compile kernel with cross toolchain>
    powerpc-405-linux-gnu-objcopy -O binary -R .note -R .comment -S vmlinux
linux.bin
    gzip -9  linux.bin
    ./mkimage -A ppc -O linux -T kernel -C gzip -a 0x00000000 -e
0x00000000 -n "test" -d linux.bin.gz uImage
    <run ftpd on host>
    <boot up the board and enter command prompt of u-boot>

    Here is the u-boot log:

    U-Boot 0.4.0 (Sep 29 2003 - 11:44:31)

CPU:   IBM PowerPC 405GP Rev. D at 200 MHz (PLB=100, OPB=50, EBC=33 MHz)
           PCI sync clock at 33 MHz, external PCI arbiter enabled
           16 kB I-Cache 8 kB D-Cache
Board: ### No HW ID - assuming WALNUT405
I2C:   ready
DRAM:  64 MB
FLASH: 512 kB
In:    serial
Out:   serial
Err:   serial
KGDB:  kgdb ready
ready
BEDBUG:ready
Hit any key to stop autoboot:  0
=> tftpboot
ENET Speed is 100 Mbps - FULL duplex connection
TFTP from server 10.5.6.76; our IP address is 10.5.3.45
Filename 'uImage'.
Load address: 0x400000
Loading: #################################################################
         #######################################################
done
Bytes transferred = 612748 (9598c hex)
=> bootm
## Booting image at 00400000 ...
   Image Name:   test
   Created:      2003-10-03   1:08:06 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    612684 Bytes = 598.3 kB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin

<hang>


>
> You "get an exception" - when? When running "mkimage"?  When  booting
> the kernel? Which sort of exception? What is the exact error message?
> Please include a complete log of your actions and all output.

    Maybe I do something wrong before. Now, it just hangs. Thanks your
suggestion about the load address.



Best Regards,
Jacky


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Kernel versions

[Gary Thomas]

Tom,

For more than a year now, I've been working from the linuxppc_2_4_devel
tree, sending updates which have been merged in, etc.  I just looked at
the recently discussed 2.4 tree (http://ppc.bkbits.net:8080/linuxppc-2.4)
and I see none of this work present.

So my questions are:
* What is the "proper" tree to be working from (2.4, 2.6)?
* What is the merge path from the work in 2_4_devel to these other trees?

... I wouldn't want all of my efforts to just get lost.

Thanks.

--
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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Re: Kernel versions

[Tom Rini]

On Fri, Oct 03, 2003 at 05:36:11PM -0600, Gary Thomas wrote:

> Tom,
>
> For more than a year now, I've been working from the linuxppc_2_4_devel
> tree, sending updates which have been merged in, etc.  I just looked at
> the recently discussed 2.4 tree (http://ppc.bkbits.net:8080/linuxppc-2.4)
> and I see none of this work present.
>
> So my questions are:
> * What is the "proper" tree to be working from (2.4, 2.6)?
> * What is the merge path from the work in 2_4_devel to these other trees?

For 2.6, a tree based off of Linus' BK (or CVS or SVN or tarball of
that) or current 2.6 release.  For 2.4, it depends on the type of board:
8xx: Should be mostly merged into kernel.org now, but if you need
something, pull it up and out separately.
'classic' mpc10x based: All of the library type bits of code
(mpc10x_common, gen550) are in kernel.org, so it should be trivial to
pull a platform out of _devel
gt64260 (and gt64360): At OLS Paul talked to Mark about what needs to
bee done to make him happy with the code and Mark has expressed a desire
to do some (other?) cleanups as well to the 64260 code, which should
take into account the 64360 when possible.
'other' classic: Most likely needs someone with the hardware to state
that it's still working.
8260: Needs things to be pulled up and out of 2_4_devel.

And by 'pull it up and out' I mean to make another patch / ChangeSet of
just those changes (or many, if there's many difference pieces to it)
that would go in before the patch for a given board.

Now, since 2.4 (2_4_devel, even) and 2.6 are not in sync for some code
(gt64260) and not all platforms work in 2.6 (8xx, 8260 is in almost
working shape again) it might not be an equal amount of work needed to
get something into 2.4 and 2.6, but it would be appreciated if patches
come in at roughly the same time for both (or 2.6 first, even).

The linuxppc-2.4 tree contains what's gone to Marcelo already, along
with some things that are being polished up.  At the moment, I don't
think there's anything special there, but I haven't looked.

> ... I wouldn't want all of my efforts to just get lost.

It won't be.

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

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