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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Lior Amsalem <alior@marvell.com>,
	barebox@lists.infradead.org,
	Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
	Willy Tarreau <w@1wt.eu>
Subject: Re: [PATCH 4/7] arm: initial support for Marvell Armada 370/XP SoCs
Date: Mon, 6 May 2013 16:48:45 +0200	[thread overview]
Message-ID: <20130506164845.6bcbc02e@skate> (raw)
In-Reply-To: <20130506144634.GH32299@pengutronix.de>

Dear Sascha Hauer,

On Mon, 6 May 2013 16:46:34 +0200, Sascha Hauer wrote:

> > > We use the MMU, but we use a 1:1 mapping. The SDRAM is mapped cached and
> > > the rest is mapped uncached. This means you can simply access all
> > > registers without mapping them
> > 
> > Ok, thanks. So you're not overly chocked by those readl() poking
> > directly at physical addresses, if I understand correctly.
> 
> Not at all, we do this everywhere. There is a tendency to turn units
> into proper drivers though as drivers show up in the 'iomem' command and
> with drivers it's generally easier to abstract between different SoCs.

Ok. The code in this patch is really an initial support, and I expect
the clock and DRAM stuff to evolve as support for other Marvell SOCs
will be added, or for additional devices.

Thanks,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

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  reply	other threads:[~2013-05-06 14:49 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-03 16:51 [PATCH 0/7] Basic support for Marvell Armada 370/XP SoC Thomas Petazzoni
2013-05-03 16:51 ` [PATCH 1/7] scripts: allow lines longer than 80 cols with printf() in checkpatch Thomas Petazzoni
2013-05-06  7:23   ` Sascha Hauer
2013-05-06  7:27     ` Thomas Petazzoni
2013-05-03 16:51 ` [PATCH 2/7] scripts: new kwbimage manipulation tool for Marvell SoC boot images Thomas Petazzoni
2013-05-04 19:51   ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-04 20:32     ` Jason Cooper
2013-05-05  6:40       ` Sascha Hauer
2013-05-05 11:19       ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-05 11:40         ` Willy Tarreau
2013-05-06 13:53         ` Thomas Petazzoni
2013-05-06 13:54           ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 14:06             ` Thomas Petazzoni
2013-05-06 14:04               ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 14:13                 ` Thomas Petazzoni
2013-05-06 14:14                   ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 14:31                     ` Willy Tarreau
2013-05-06 19:34                       ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 19:53                         ` Willy Tarreau
2013-05-06 20:21                           ` Thomas Petazzoni
2013-05-06 20:35                             ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 20:44                               ` Thomas Petazzoni
2013-05-06 20:56                                 ` Sascha Hauer
2013-05-06 21:03                                   ` Thomas Petazzoni
2013-05-07  6:31                                     ` Sascha Hauer
2013-05-07  9:33                                     ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-07  9:46                                       ` Willy Tarreau
2013-05-07  9:47                                       ` Sascha Hauer
2013-05-07  9:57                                         ` Thomas Petazzoni
2013-05-06 20:48                               ` Sascha Hauer
2013-05-06 14:21                 ` Jason Cooper
2013-05-06 19:39                   ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-07  6:44         ` Sascha Hauer
2013-05-06 19:41     ` Sascha Hauer
2013-05-06 19:16   ` Sascha Hauer
2013-05-06 20:22     ` Thomas Petazzoni
2013-05-07 23:30   ` Gregory CLEMENT
2013-05-03 16:51 ` [PATCH 3/7] scripts: add kwboot tool Thomas Petazzoni
2013-05-03 16:51 ` [PATCH 4/7] arm: initial support for Marvell Armada 370/XP SoCs Thomas Petazzoni
2013-05-06 14:09   ` Thomas Petazzoni
2013-05-06 14:07     ` Jean-Christophe PLAGNIOL-VILLARD
2013-05-06 14:30     ` Sascha Hauer
2013-05-06 14:34       ` Thomas Petazzoni
2013-05-06 14:46         ` Sascha Hauer
2013-05-06 14:48           ` Thomas Petazzoni [this message]
2013-05-03 16:51 ` [PATCH 5/7] arm: add basic support for Armada XP OpenBlocks AX3 platform Thomas Petazzoni
2013-05-05  6:59   ` Sascha Hauer
2013-05-03 16:51 ` [PATCH 6/7] arm: add basic support for the Armada 370 Mirabox platform Thomas Petazzoni
2013-05-03 16:51 ` [PATCH 7/7] arm: add basic support for the Armada XP GP platform Thomas Petazzoni
2013-05-04 17:15 ` [PATCH 0/7] Basic support for Marvell Armada 370/XP SoC Jason Cooper
2013-05-04 17:23   ` Re[2]: " Alexander Shiyan
2013-05-04 17:49     ` Thomas Petazzoni
2013-05-04 17:52       ` Re[2]: " Alexander Shiyan
2013-05-04 17:52   ` Thomas Petazzoni
2013-05-04 18:34     ` Jason Cooper
2013-05-05  6:33     ` Sascha Hauer
2013-05-06 13:54       ` Thomas Petazzoni
2013-05-06 19:28 ` Sascha Hauer
2013-05-06 20:32   ` Thomas Petazzoni
2013-05-07 23:28 ` Gregory CLEMENT
2013-05-07 23:46   ` Gregory CLEMENT
2013-05-08 10:46   ` Thomas Petazzoni
2013-05-08 21:02     ` Gregory CLEMENT

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