Embedded PPC (8xx/82xx) Linux kernel development: How it is done?

Embedded PPC (8xx/82xx) Linux kernel development: How it is done?

[diekema_jon]

	* Embedded PPC (8xx/82xx) Linux kernel development: How it is done?

	- What tools are used to roll in the PPC Linux kernel changes
	  into the repositories?

	      + snapshots

	        ftp://linuxppc.cs.nmt.edu/pub/linuxppc/embedded/mpc8xx-2.2.13.tgz
	        ftp://linuxppc.cs.nmt.edu/pub/linuxppc/embedded/linux-2.3.18.tgz

                There hasn't been munch activity in
	        ftp://linuxppc.cs.nmt.edu/pub/linuxppc/embedded/
		over the last couple of months.

-rw-r--r--   1 dmalek   1000        17293 Nov 10 11:41 dl-machine.h
-rw-r--r--   1 dmalek   1000         6018 Jul  8  1999 embedded_notes
-rw-r--r--   1 dmalek   1000        32876 Oct 22 17:31 fadsrom.tgz
-rw-r--r--   1 dmalek   dmalek      31153 Jan 19 09:15 fec.c
-rw-r--r--   1 dmalek   1000       166978 Nov  5 18:55 gdbserver.tgz
-rw-r--r--   1 dmalek   1000         7492 Oct 28 12:28 getting_started.rpx
-rw-r--r--   1 dmalek   1000      3446575 Nov  8 17:07 glibc-0.961212-1r.src.rpm
-rw-r--r--   1 dmalek   1000       707994 Mar  4  1999 libc-1.99-8xx.tar.gz
-rw-r--r--   1 dmalek   1000     13402725 Sep 14 19:41 linux-2.3.18.tgz
-rw-r--r--   1 dmalek   1000         6345 Jul  8  1999 mbxnotes
-rw-r--r--   1 dmalek   1000     133029168 Feb 12  1999 mbxroot.full.tgz
-rw-r--r--   1 dmalek   1000       910617 Sep 18  1998 mbxroot.min.tgz
-rw-r--r--   1 dmalek   1000     17172560 Oct 22 17:38 mpc8xx-2.2.13.tgz
-rw-r--r--   1 dmalek   1000      5335914 Jul 28  1999 xppc_tools.tgz
-rw-r--r--   1 dmalek   dmalek       2042 Nov 30 11:23 zsrec.c

 	      + RCS

	      + CVS

	        setenv CVSROOT :pserver:anonymous@cvs.on.openprojects.net:/cvs/linux
		cvs co linux

	      + SCCS

	      + Bitkeeper, http://www.bitkeeper.com/

	        In
		http://lists.linuxppc.org/cgi-bin/wilma/wilma_hiliter/linuxppc-embedded/199912/msg00106.html#hilite?line=29
		Dan Malek <dan@netx4.com> talks about "Cort's BitKeeper"

		In
		http://lists.linuxppc.org/cgi-bin/wilma/wilma_hiliter/linuxppc-embedded/200001/msg00189.html#hilite?line=71
		Dan Malek <dan@netx4.com> talks about "I work in the
		BitKeeper tree, which is supposed to be the official PPC
		tree and one step away from kernel.org."

	        What or where is the "BitKeeper tree"?

	- Where are the repositories located?

	- Are these repositories closed?  Or, can others see what changes
	  are being made?

	- How long does it take for the kernel changes from these
	  repositories to make it into the offical Linux kernel release?

	- Who are the people involved with the embedded PPC Linux kernel
	  changes?

	      + MPC860
	      + MPC8240
	      + MPC8260

	      In
	      http://lists.linuxppc.org/cgi-bin/wilma/wilma_hiliter/linuxppc-embedded/199911/msg00001.html#hilite?line=116
	      Dan Malek <dan@netx4.com> writes, " I have been working on
	      the kernel almost daily for many years now, and there are
	      few others that do the same."

	      Dan Malek <dan@netx4.com> is involved, but who are the
	      others?  What is the division of labor between Dan and the
	      rest?

	      This is what I have figure out so far:

		Dan Malek
		Seasoned PPC Kernel hacker for 8xx and 82xx
		product and software development consultant
		dan@netx4.com

		Cort Dougan
		cort@ppc.kernel.org
		http://www.ppc.kernel.org/

		Grant M. Erickson
		grant@lcse.umn.edu
		PPC Kernel hacker for 4xx

		Wolfgang Denx
		wd@denx.de
		http://www.denx.de/solutions-en.html
		DENX Software Engineering
		Products: LinuxPPC Cross Development Kit (CDK)
		          LinuxPPC for MPC8xx Systems, especially for TQM8xxL Modules

	        Graham Stoney
		greyham@research.canon.com.au
		Linux for PowerPC Embedded Systems HOWTO/FAQ

	- Is this a closed community?  Or, can others join the team?

	- If it is an open community, how does one join?  Are there any
	  posted rules?

	- I want to contribute to the process of porting Linux to
	  run on the EST SBC8260 single board computer, but I need to
	  understand how to participate.

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

Re: Embedded PPC (8xx/82xx) Linux kernel development: How it is done?

[Graham Stoney]

Hi there,

Welcome to the team! I'll answer the bits I know about ...

diekema_jon writes:
> What is the division of labor between Dan and the rest?

Generally, Dan solves the problem before the rest of us get around to asking
about it. :-). Seriously though, there are lots of other contributing. I found
almost everything I hoped to contribute so far was already done, so I wrote a
HOWTO instead.

> 	- Is this a closed community?  Or, can others join the team?
> 	- If it is an open community, how does one join?  Are there any
> 	  posted rules?

No, Yes, You just did, and Maybe.

> 	- I want to contribute to the process of porting Linux to
> 	  run on the EST SBC8260 single board computer, but I need to
> 	  understand how to participate.

Start by searching the mailing list archives at:
    http://lists.linuxppc.org/lists/linuxppc-embedded

Then, ask on the list if anyone else has already done it, or is interested in
doing it, and see what response you get. If it hasn't been done yet, try all
the links in the HOWTO to see if it's been ported to a similar board.

Regards,
Graham

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