[RFC][PATCH] MPC832x_RDB: update dts to use spi, registermmc_spi stub
Joakim Tjernlund
joakim.tjernlund at transmode.se
Fri Jul 27 05:40:23 EST 2007
> -----Original Message-----
> From: Anton Vorontsov [mailto:avorontsov at ru.mvista.com]
> Sent: den 26 juli 2007 17:48
> To: Joakim Tjernlund
> Cc: linuxppc-dev at ozlabs.org
> Subject: Re: [RFC][PATCH] MPC832x_RDB: update dts to use spi,
> registermmc_spi stub
>
> On Thu, Jul 26, 2007 at 05:36:06PM +0200, Joakim Tjernlund wrote:
> [...]
> > > spi at 4c0 {
> > > device_type = "spi";
> > > + device-id = <1>;
> > > compatible = "fsl_spi";
> > > reg = <4c0 40>;
> > > interrupts = <2>;
> > > interrupt-parent = <&qeic>;
> > > - mode = "cpu";
> > > + mode = "qe";
> >
> > The driver is still using "cpu" mode. It just happens that
> the cpu mode for QE
> > enabled CPUs isn't 100% compatible with the defacto cpu
> mode used by other CPU:s.
>
> Yup, indeed.
>
> > So mode should probably be "cpu_qe" or, even better, if the
> drver could
>
> That's easy to change, thanks.
>
> > autodetect that it is running on a QE enabled CPU and
> adjust accordinly.
> > Maybe the Freescale guys have some ideas how to do that.
>
> Ok. Well, for now could we use machine_is() for kind of autodetect?
> Or it's better leave it as is, and just rename mode to cpu_qe?
Unless the DTS guys thinks otherwise, just rename to "cpu_qe".
"qe" would then be reserved for true QE mode.
Jocke
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