linux-kernel - Re: [PATCH V2 RESEND] clk: mxs: Fix invalid 32-bit access to frac registers

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Message-ID: <462270270.419156.1423603473431.JavaMail.open-xchange@oxbaltgw02.schlund.de>
Date:	Tue, 10 Feb 2015 22:24:33 +0100 (CET)
From:	Stefan Wahren <stefan.wahren@...e.com>
To:	Fabio Estevam <festevam@...il.com>
Cc:	Sascha Hauer <kernel@...gutronix.de>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Mike Turquette <mturquette@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Marek Vasut <marex@...x.de>, Zhi Li <lznuaa@...il.com>
Subject: Re: [PATCH V2 RESEND] clk: mxs: Fix invalid 32-bit access to frac
 registers

Hi Fabio,

> Fabio Estevam <festevam@...il.com> hat am 10. Februar 2015 um 16:06
> geschrieben:
>
>
> Hi Stefan,
>
> On Tue, Feb 10, 2015 at 11:55 AM, Stefan Wahren <stefan.wahren@...e.com>
> wrote:
>
> > Could you apply only the clk-imx28.c part of my patch and see what happens?
>
> If I apply only the clk-imx28.c part of your patch I can successfully
> probe the SPI NOR.

thanks this is very helpful. I built the linux-next for my Duckbill and add the
SSP2 section from imx28-evk.dts into imx28-duckbill.dts.

Without my patch i get the following for HW_CLKCTRL_FRAC0:

./memwatch -a 0x800401B0

0x800401b0: 0x5e5b5513

With my patch i get:

./memwatch -a 0x800401B0

0x800401b0: 0x5e1b5513

So it looks like a problem in my patch.

I orded such a flash chip, but it will take some time until i can use it with my
hardware.

Stefan

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