From: gmbnomis@gmail.com (Simon Baatz)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
Date: Wed, 30 Jan 2013 21:50:36 +0100 [thread overview]
Message-ID: <20130130205035.GA20203@schnuecks.de> (raw)
In-Reply-To: <1359493774-27627-1-git-send-email-jason@lakedaemon.net>
Hi Jason,
On Tue, Jan 29, 2013 at 09:09:34PM +0000, Jason Cooper wrote:
> When DT support for kirkwood was first introduced, there was no clock
> infrastructure. As a result, we had to manually pass the
> clock-frequency to the driver from the device node.
>
> Unfortunately, on kirkwood, with minimal config or all module configs,
> clock-frequency breaks booting because of_serial doesn't consume the
> gate_clk when clock-frequency is defined.
>
> The end result on kirkwood is that runit gets gated, and then the boot
> fails when the kernel tries to write to the serial port.
>
> Fix the issue by removing the clock-frequency parameter from all
> kirkwood dts files.
>
> Booted on dreamplug without earlyprintk and successfully logged in via
> ttyS0.
>
> Reported-by: Simon Baatz <gmbnomis@gmail.com>
> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
> ---
If you like, you can add my
Tested-by: Simon Baatz <gmbnomis@gmail.com>
(On IB-NAS6210 serial console, earlyprintk and successful login via
ttyS0)
- Simon
next prev parent reply other threads:[~2013-01-30 20:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-29 21:09 [PATCH] ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency Jason Cooper
2013-01-30 20:50 ` Simon Baatz [this message]
2013-02-04 1:33 ` Jason Cooper
2013-02-05 10:54 ` Simon Guinot
2013-02-05 11:13 ` Jason Cooper
2013-02-14 20:38 ` Jason Cooper
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