linux-kernel - Re: [PATCHv3 1/4] ARM: tegra: Add AHB driver

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Message-ID: <4F99A740.3080407@wwwdotorg.org>
Date:	Thu, 26 Apr 2012 13:51:28 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Hiroshi DOYU <hdoyu@...dia.com>
CC:	swarren@...dia.com, linux-tegra@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, Felipe Balbi <balbi@...com>,
	Arnd Bergmann <arnd@...db.de>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org
Subject: Re: [PATCHv3 1/4] ARM: tegra: Add AHB driver

On 04/25/2012 05:07 AM, Hiroshi DOYU wrote:
> The AHB Bus conforms to the AMBA Specification (Rev 2.0) Advanced
> High-performance Bus (AHB) architecture.
> 
> The AHB Arbiter controls AHB bus master arbitration. This effectively
> forms a second level of arbitration for access to the memory
> controller through the AHB Slave Memory device. The AHB pre-fetch
> logic can be configured to enhance performance for devices doing
> sequential access. Each AHB master is assigned to either the high or
> low priority bin. Both Tegra20/30 have this AHB bus.
> 
> Some of configuration param could be passed from DT too.

I think this code looks reasonable. I'd like to see an ack from Russell,
Arnd, and Olof on the final location of the files though.

I note that MAINTAINERS doesn't have an entry for drivers/platform/
(except x86/ sub-dir) or drivers/platform/arm/.
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