From: Marcel Ziswiler <marcel-mitwqZ+T+m9Wk0Htik3J/w@public.gmane.org>
To: swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org
Cc: thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
stefan-XLVq0VzYD2Y@public.gmane.org
Subject: Re: [PATCH] ARM: tegra: colibri t30: fix on-module ethernet
Date: Fri, 21 Nov 2014 12:57:52 +0100 [thread overview]
Message-ID: <1416571072.2744.4.camel@localhost.localdomain> (raw)
In-Reply-To: <b1cdc96ce8bb15059d7eea282f6586a826bee124.1416566157.git.marcel-mitwqZ+T+m9Wk0Htik3J/w@public.gmane.org>
On Fri, 2014-11-21 at 11:41 +0100, Marcel Ziswiler wrote:
> Looks like Ethernet only ever worked if U-Boot properly brought it up
> as both the reset as well as the VBUS lines were not actively handled
> in-kernel.
> This patch fixes this by just pulling up the reset GPIO
Doing automatic power-cycle tests revealed that this is still not enough
and a proper reset-cycle might be required. However I don't know as of
yet how one can easily do that in mainline with a USB device otherwise
not mentioned anywhere in the device tree. Any ideas?
> and properly
> enabling VBUS via a GPIO enabled fixed regulator VBUS supply.
>
> Signed-off-by: Marcel Ziswiler <marcel-mitwqZ+T+m9Wk0Htik3J/w@public.gmane.org>
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WARNING: multiple messages have this Message-ID (diff)
From: marcel@ziswiler.com (Marcel Ziswiler)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: tegra: colibri t30: fix on-module ethernet
Date: Fri, 21 Nov 2014 12:57:52 +0100 [thread overview]
Message-ID: <1416571072.2744.4.camel@localhost.localdomain> (raw)
In-Reply-To: <b1cdc96ce8bb15059d7eea282f6586a826bee124.1416566157.git.marcel@ziswiler.com>
On Fri, 2014-11-21 at 11:41 +0100, Marcel Ziswiler wrote:
> Looks like Ethernet only ever worked if U-Boot properly brought it up
> as both the reset as well as the VBUS lines were not actively handled
> in-kernel.
> This patch fixes this by just pulling up the reset GPIO
Doing automatic power-cycle tests revealed that this is still not enough
and a proper reset-cycle might be required. However I don't know as of
yet how one can easily do that in mainline with a USB device otherwise
not mentioned anywhere in the device tree. Any ideas?
> and properly
> enabling VBUS via a GPIO enabled fixed regulator VBUS supply.
>
> Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
WARNING: multiple messages have this Message-ID (diff)
From: Marcel Ziswiler <marcel@ziswiler.com>
To: swarren@wwwdotorg.org
Cc: thierry.reding@gmail.com, linux@arm.linux.org.uk,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org,
stefan@agner.ch
Subject: Re: [PATCH] ARM: tegra: colibri t30: fix on-module ethernet
Date: Fri, 21 Nov 2014 12:57:52 +0100 [thread overview]
Message-ID: <1416571072.2744.4.camel@localhost.localdomain> (raw)
In-Reply-To: <b1cdc96ce8bb15059d7eea282f6586a826bee124.1416566157.git.marcel@ziswiler.com>
On Fri, 2014-11-21 at 11:41 +0100, Marcel Ziswiler wrote:
> Looks like Ethernet only ever worked if U-Boot properly brought it up
> as both the reset as well as the VBUS lines were not actively handled
> in-kernel.
> This patch fixes this by just pulling up the reset GPIO
Doing automatic power-cycle tests revealed that this is still not enough
and a proper reset-cycle might be required. However I don't know as of
yet how one can easily do that in mainline with a USB device otherwise
not mentioned anywhere in the device tree. Any ideas?
> and properly
> enabling VBUS via a GPIO enabled fixed regulator VBUS supply.
>
> Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
next prev parent reply other threads:[~2014-11-21 11:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-21 10:41 [PATCH] ARM: tegra: colibri t30: fix on-module ethernet Marcel Ziswiler
2014-11-21 10:41 ` Marcel Ziswiler
2014-11-21 10:41 ` Marcel Ziswiler
[not found] ` <b1cdc96ce8bb15059d7eea282f6586a826bee124.1416566157.git.marcel-mitwqZ+T+m9Wk0Htik3J/w@public.gmane.org>
2014-11-21 11:57 ` Marcel Ziswiler [this message]
2014-11-21 11:57 ` Marcel Ziswiler
2014-11-21 11:57 ` Marcel Ziswiler
2014-11-21 13:30 ` Marcel Ziswiler
2014-11-21 13:30 ` Marcel Ziswiler
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