From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
linux-ide@vger.kernel.org, Mark Rutland <mark.rutland@arm.com>,
Pawel Moll <pawel.moll@arm.com>, Rob Herring <robh+dt@kernel.org>,
Sascha Hauer <kernel@pengutronix.de>,
Shawn Guo <shawn.guo@freescale.com>, Tejun Heo <tj@kernel.org>
Subject: [PATCH 0/5] imx ahci DT updates + cubox-i eSATA support
Date: Wed, 16 Apr 2014 09:42:27 +0100 [thread overview]
Message-ID: <20140416084227.GD24070@n2100.arm.linux.org.uk> (raw)
The following series adds several DT properties to the iMX ahci driver,
which are necessary to configure the electrical characteristics of the
SATA interface.
The required electrical characteristics are board dependent, so the
existing solution where the parameters are hard-coded for the first
board(s) which came along is completely rediculous, and cause their
own set of problems: we have to default to these parameters when no
properties are given, and it means we have to use negative properties
to turn stuff off rather than positive properties to enable features.
Yes, I know that the required Documentation/devicetree file is missing,
I couldn't find the existing file to update for this driver with the
new properties. :)
arch/arm/boot/dts/imx6q-cubox-i.dts | 4 +
drivers/ata/ahci_imx.c | 188 ++++++++++++++++++++++++++++++++++--
2 files changed, 184 insertions(+), 8 deletions(-)
--
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
next reply other threads:[~2014-04-16 8:42 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-16 8:42 Russell King - ARM Linux [this message]
[not found] ` <20140416084227.GD24070-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2014-04-16 8:43 ` [PATCH RFC 4/5] ARM: cubox-i: add eSATA DT configuration Russell King
2014-04-16 8:43 ` [PATCH RFC 5/5] ahci_imx: add disable for spread-spectrum Russell King
2014-04-16 22:46 ` Rob Herring
2014-04-16 22:57 ` Russell King - ARM Linux
2014-04-16 23:02 ` Russell King - ARM Linux
2014-06-06 16:40 ` Russell King - ARM Linux
2014-06-06 19:50 ` Rob Herring
2014-06-17 9:47 ` Russell King - ARM Linux
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