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From: eric@eukrea.com (Eric Bénard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] arm: mvebu: Enable USB controllers on Armada 370/XP boards
Date: Wed, 23 Jan 2013 22:14:58 +0100	[thread overview]
Message-ID: <20130123221458.6237568b@e6520eb> (raw)
In-Reply-To: <20130123190352.2d001218@skate>

Hi Thomas,

Le Wed, 23 Jan 2013 19:03:52 +0100,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> a ?crit :
> On Wed, 23 Jan 2013 14:04:42 -0300, Ezequiel Garcia wrote:
> 
> > from the OpenBlocks AX3-4 board dts file, since you mentioned this
> > board uses that USB
> > port for a PCIe connector -- if I understood correctly.
> 
> No. The OpenBlocks has a different USB controller that sits on the PCIe
> bus. There is nothing like a PCIe port that uses a USB port, that
> doesn't make sense.
> 
I don't have a AX3-4 but it seems to have a MiniPCIe socket and
not a PCIe one.
MiniPCIe specification includes both PCIe _and_ USB2.0 signals (on pins
36&38) (and also SMBus, SIM and LEDs drivers check the following table
for details http://pinoutsguide.com/Slots/mini_pcie_pinout.shtml ) so
the possibility to have a USB port connected to the MiniPCIe on the
AX3-4 makes sense.

For example most 3G MiniPCIe boards are using the USB2.0 signals and
not the PCIe ones.

Eric

WARNING: multiple messages have this Message-ID (diff)
From: "Eric Bénard" <eric@eukrea.com>
To: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Lior Amsalem <alior@marvell.com>, Andrew Lunn <andrew@lunn.ch>,
	Ezequiel Garcia <elezegarcia@gmail.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Nobuhiro Iwamatsu <iwamatsu@nigauri.org>,
	Michael Opdenacker <michael.opdenacker@free-electrons.com>,
	devicetree-discuss@lists.ozlabs.org, linux-usb@vger.kernel.org,
	Yehuda Yitschak <yehuday@marvell.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
	Gregory CLEMENT <gregory.clement@free-electrons.com>,
	Florian Fainelli <florian@openwrt.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 2/3] arm: mvebu: Enable USB controllers on Armada 370/XP boards
Date: Wed, 23 Jan 2013 22:14:58 +0100	[thread overview]
Message-ID: <20130123221458.6237568b@e6520eb> (raw)
In-Reply-To: <20130123190352.2d001218@skate>

Hi Thomas,

Le Wed, 23 Jan 2013 19:03:52 +0100,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> a écrit :
> On Wed, 23 Jan 2013 14:04:42 -0300, Ezequiel Garcia wrote:
> 
> > from the OpenBlocks AX3-4 board dts file, since you mentioned this
> > board uses that USB
> > port for a PCIe connector -- if I understood correctly.
> 
> No. The OpenBlocks has a different USB controller that sits on the PCIe
> bus. There is nothing like a PCIe port that uses a USB port, that
> doesn't make sense.
> 
I don't have a AX3-4 but it seems to have a MiniPCIe socket and
not a PCIe one.
MiniPCIe specification includes both PCIe _and_ USB2.0 signals (on pins
36&38) (and also SMBus, SIM and LEDs drivers check the following table
for details http://pinoutsguide.com/Slots/mini_pcie_pinout.shtml ) so
the possibility to have a USB port connected to the MiniPCIe on the
AX3-4 makes sense.

For example most 3G MiniPCIe boards are using the USB2.0 signals and
not the PCIe ones.

Eric

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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2013-01-23 21:14 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-23 15:26 [PATCH v2 1/3] arm: mvebu: Add support for USB host controllers in Armada 370/XP Ezequiel Garcia
2013-01-23 15:26 ` Ezequiel Garcia
2013-01-23 15:26 ` [PATCH v2 2/3] arm: mvebu: Enable USB controllers on Armada 370/XP boards Ezequiel Garcia
2013-01-23 15:26   ` Ezequiel Garcia
2013-01-23 17:04   ` Ezequiel Garcia
2013-01-23 17:04     ` Ezequiel Garcia
2013-01-23 18:03     ` Thomas Petazzoni
2013-01-23 18:03       ` Thomas Petazzoni
2013-01-23 18:08       ` Ezequiel Garcia
2013-01-23 18:08         ` Ezequiel Garcia
2013-01-23 21:14       ` Eric Bénard [this message]
2013-01-23 21:14         ` Eric Bénard
2013-02-15 21:28   ` Jason Cooper
2013-02-15 21:28     ` Jason Cooper
2013-01-23 15:26 ` [PATCH v2 3/3] arm: mvebu: Update defconfig to select USB support Ezequiel Garcia
2013-01-23 15:26   ` Ezequiel Garcia
2013-02-15 21:26   ` Jason Cooper
2013-02-15 21:26     ` Jason Cooper
2013-01-23 17:06 ` [PATCH v2 1/3] arm: mvebu: Add support for USB host controllers in Armada 370/XP Ezequiel Garcia
2013-01-23 17:06   ` Ezequiel Garcia
2013-01-23 17:40   ` Jason Cooper
2013-01-23 17:40     ` Jason Cooper
2013-01-29 18:56     ` Ezequiel Garcia
2013-01-29 18:56       ` Ezequiel Garcia
2013-01-29 19:03       ` Jason Cooper
2013-01-29 19:03         ` Jason Cooper
2013-01-31  1:19       ` Nobuhiro Iwamatsu
2013-01-31  1:19         ` Nobuhiro Iwamatsu
2013-02-15 21:28 ` Jason Cooper
2013-02-15 21:28   ` Jason Cooper

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