From: Mark Brown <broonie@kernel.org>
To: Stefan Roese <sr@denx.de>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Andrew Lunn <andrew@lunn.ch>, Arnd Bergmann <arnd@arndb.de>,
linux-spi@vger.kernel.org, Nadav Haklai <nadavh@marvell.com>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Gregory CLEMENT <gregory.clement@free-electrons.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] spi: orion.c: Add direct access mode
Date: Thu, 24 Mar 2016 11:23:08 +0000 [thread overview]
Message-ID: <20160324112308.GY2566@sirena.org.uk> (raw)
In-Reply-To: <56F37EFF.2090605@denx.de>
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On Thu, Mar 24, 2016 at 06:45:35AM +0100, Stefan Roese wrote:
> Right. It is of course possible to use this direct mode to access
> SPI flash. Its just not the way how the SPI MTD driver uses the
> SPI controller. All information that is written to the SPI flash
> (e.g. commands, addresses) are passed as plain tx-data in the SPI
> message to the SPI controller. And it would be not easy to detect
> commands / addresses vs. "real data" in this orion SPI driver
> to put these values into the specific registers.
We now have extensions for passing commands through directly (see
spi_flash_read()).
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next prev parent reply other threads:[~2016-03-24 11:23 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-22 16:24 [PATCH v2] spi: orion.c: Add direct access mode Stefan Roese
[not found] ` <1458663893-13766-1-git-send-email-sr-ynQEQJNshbs@public.gmane.org>
2016-03-22 16:35 ` Thomas Petazzoni
2016-03-22 16:44 ` Stefan Roese
[not found] ` <56F17684.2010307-ynQEQJNshbs@public.gmane.org>
2016-03-23 11:33 ` Mark Brown
[not found] ` <20160323113316.GH2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-23 11:59 ` Stefan Roese
[not found] ` <56F2852C.5010006-ynQEQJNshbs@public.gmane.org>
2016-03-23 12:54 ` Mark Brown
[not found] ` <20160323125448.GM2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-23 13:10 ` Stefan Roese
[not found] ` <56F295E1.4030505-ynQEQJNshbs@public.gmane.org>
2016-03-23 13:26 ` Andrew Lunn
[not found] ` <20160323132637.GC19953-g2DYL2Zd6BY@public.gmane.org>
2016-03-23 13:36 ` Mark Brown
[not found] ` <20160323133612.GO2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-23 13:56 ` Andrew Lunn
[not found] ` <20160323135606.GE19953-g2DYL2Zd6BY@public.gmane.org>
2016-03-23 19:51 ` Arnd Bergmann
2016-03-24 7:22 ` Stefan Roese
[not found] ` <56F395BC.6070108-ynQEQJNshbs@public.gmane.org>
2016-03-24 12:42 ` Arnd Bergmann
2016-03-24 16:15 ` Stefan Roese
[not found] ` <56F412B5.2080200-ynQEQJNshbs@public.gmane.org>
2016-03-24 16:42 ` Arnd Bergmann
2016-03-24 17:30 ` Stefan Roese
2016-03-24 16:48 ` Arnd Bergmann
2016-03-24 17:51 ` Stefan Roese
[not found] ` <56F42939.4020803-ynQEQJNshbs@public.gmane.org>
2016-03-24 20:07 ` Arnd Bergmann
2016-03-25 10:32 ` Mark Brown
[not found] ` <20160325103253.GA2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-25 15:11 ` Arnd Bergmann
2016-03-25 15:50 ` Mark Brown
[not found] ` <20160325155032.GH2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-25 20:58 ` Arnd Bergmann
2016-03-25 22:39 ` Mark Brown
[not found] ` <20160325223922.GG5028-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-29 12:39 ` Arnd Bergmann
2016-03-29 16:47 ` Mark Brown
[not found] ` <20160329164758.GQ2350-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-29 19:49 ` Arnd Bergmann
2016-03-29 19:52 ` Mark Brown
2016-03-29 20:04 ` Arnd Bergmann
2016-03-29 21:00 ` Mark Brown
[not found] ` <20160329210018.GL2350-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-29 21:08 ` Arnd Bergmann
2016-03-29 21:28 ` Mark Brown
[not found] ` <20160329212842.GN2350-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-29 22:04 ` Arnd Bergmann
2016-04-05 7:11 ` Stefan Roese
[not found] ` <5703651F.4040901-ynQEQJNshbs@public.gmane.org>
2016-04-05 13:15 ` Andrew Lunn
[not found] ` <20160405131529.GA30881-g2DYL2Zd6BY@public.gmane.org>
2016-04-05 13:20 ` Stefan Roese
[not found] ` <5703BB82.4090204-ynQEQJNshbs@public.gmane.org>
2016-04-05 13:31 ` Andrew Lunn
2016-03-23 13:27 ` Mark Brown
[not found] ` <20160323132732.GN2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-23 17:25 ` Stefan Roese
[not found] ` <56F2D19A.7020604-ynQEQJNshbs@public.gmane.org>
2016-03-23 18:29 ` Mark Brown
2016-03-23 18:39 ` Andrew Lunn
[not found] ` <20160323183952.GK5250-g2DYL2Zd6BY@public.gmane.org>
2016-03-24 5:45 ` Stefan Roese
2016-03-24 11:23 ` Mark Brown [this message]
[not found] ` <20160324112308.GY2566-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2016-03-24 12:05 ` Stefan Roese
[not found] ` <20160322173546.40d24cc2-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2016-03-22 17:39 ` Mark Brown
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