linux-kernel - Re: [PATCH] ARM: mach-moxart: platform port for MOXA ART SoC

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Date:	Mon, 18 Mar 2013 15:03:49 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Jonas Jensen <jonas.jensen@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Daniel Mack <zonque@...il.com>, linux@....linux.org.uk,
	linux-mmc@...r.kernel.org, jirislaby@...il.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: mach-moxart: platform port for MOXA ART SoC

On Sunday 17 March 2013, Jonas Jensen wrote:
> Thank you for the feedback.
> 
> Some of the changes are sure to be a challenge for me, but I want to
> move this forward, and having a list helps.
> 
> 3.2.40 is as far as it'll go right now, nothing prints to UART
> starting with 3.3.8 (last tested, it's somewhere around there).
> 
> I have been advised to enable early_printk (by landley on freenode IRC #edev).

Yes, that is a good idea. I would also suggest that you don't try to port
all the code at once a few kernel versions at a time, but that you instead
move straight to the latest kernel, and basically start a new port one driver
at a time. Take one of the newer ports (highbank, virt, bcm, ...) as examples.

Since most of the code is now in drivers/ directories rather than arch/arm,
you can actually start getting stuff upstream before you have completed all
of it. If you have questions, I recommend asking on the #armlinux channel
on freenode, or here on the mailing list.

	Arnd
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