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From: Carlos Eduardo de Paula <me@carlosedp.com>
To: linux-riscv@lists.infradead.org
Subject: Changing SiFive Unleashed core clock rate on 5.x kernel
Date: Mon, 12 Aug 2019 17:32:30 -0300	[thread overview]
Message-ID: <CADnnUqcp_7yN4WK2uXberCV_uwjPSj0PxpiXg6kp71--QGPJaA@mail.gmail.com> (raw)

Back in 4.x kernel, we could set the board clock rate by echoing like:

echo 1450000000 > /sys/devices/platform/soc/10000000.prci/rate

Now with Kernel 5.x and with the board DTB, what's the correct way to
set this clock rate? I tried changing RTCCLK_FREQ from 1000000 to
1450000 but I got some clock skew during use.

Is there anywhere else this need to be set?

Thanks


-- 
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             reply	other threads:[~2019-08-12 20:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-12 20:32 Carlos Eduardo de Paula [this message]
2019-08-13 21:22 ` Changing SiFive Unleashed core clock rate on 5.x kernel Paul Walmsley
2019-08-14  2:09   ` Paul Walmsley
2019-08-16 18:59     ` Carlos Eduardo de Paula
2019-08-16 19:50       ` Paul Walmsley
2019-08-16 20:50         ` Carlos Eduardo de Paula
2019-08-16 20:57           ` Paul Walmsley
2019-08-16 21:17             ` Carlos Eduardo de Paula
2019-08-16 21:44               ` Carlos Eduardo de Paula

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