From: Segher Boessenkool <segher@kernel.crashing.org>
To: "Stephen Neuendorffer" <stephen.neuendorffer@xilinx.com>
Cc: John Linn <linnj@xilinx.com>,
linuxppc-dev@ozlabs.org, Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart16550.
Date: Fri, 21 Mar 2008 17:48:30 +0100 [thread overview]
Message-ID: <87477fcc1ac591dc6b76d84caa99ac59@kernel.crashing.org> (raw)
In-Reply-To: <20080321160802.7CED7196805C@mail103-sin.bigfish.com>
> I thought about this, and reconsidered it again after I finally figured
> out how to get the Power.org website to relenquish the ePAPR spec,
> which
> (FWIW) has reg-shift as an optional property of the ns16550 binding.
>
> However, I'm not enamoured of it, since I doubt it's really good to be
> doing ioremaps and memory management on unaligned blocks. It seems
> more
> logical to me to have the reg property define a range of aligned
> addresses, and in this case, it happens that the driver never touches
> some of those bytes.
Yes, and that is (part of) why "reg-offset" might be needed /
might be a good idea.
> In any event, the real point of the patch was to spark some discussion,
> which we failed to get otherwise.. :)
You succeeded :-)
Segher
next prev parent reply other threads:[~2008-03-21 16:48 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <12060242324116-git-send-email-john.linn@xilinx.com>
2008-03-20 14:43 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart 16550 John Linn
2008-03-21 0:19 ` Grant Likely
2008-03-21 9:21 ` Paul Mackerras
2008-03-21 11:39 ` Segher Boessenkool
2008-03-21 16:08 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart16550 Stephen Neuendorffer
2008-03-21 16:48 ` Segher Boessenkool [this message]
2008-03-22 14:50 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart 16550 Grant Likely
2008-03-22 16:06 ` Sergei Shtylyov
2008-03-24 14:09 ` Sergei Shtylyov
2008-03-24 14:27 ` Grant Likely
2008-03-24 16:15 ` Sergei Shtylyov
2008-03-24 16:48 ` Grant Likely
2008-03-24 17:03 ` Sergei Shtylyov
2008-03-25 22:48 ` John Linn
2008-03-21 13:00 ` Sergei Shtylyov
2008-03-21 15:37 ` Segher Boessenkool
2008-03-21 15:54 ` Sergei Shtylyov
2008-03-21 16:45 ` Segher Boessenkool
2008-03-21 16:50 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart16550 Stephen Neuendorffer
2008-03-21 17:01 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart 16550 Sergei Shtylyov
2008-03-22 15:06 ` Grant Likely
2008-03-22 16:40 ` Sergei Shtylyov
2008-03-21 16:14 ` [PATCH 2/3] [POWERPC] Xilinx: of_serial support for Xilinx uart16550 Stephen Neuendorffer
[not found] ` <1206024232655-git-send-email-john.linn@xilinx.com>
2008-03-20 14:43 ` [PATCH 3/3] [POWERPC] Xilinx: boot support for Xilinx uart 16550 John Linn
2008-03-20 14:54 ` Grant Likely
2008-03-20 16:15 ` John Linn
2008-03-20 21:18 ` Grant Likely
[not found] ` <20080320175601.5D86217C8055@mail127-sin.bigfish.com>
2008-03-20 21:07 ` Grant Likely
2008-03-20 22:04 ` Grant Likely
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