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Date: Thu, 17 Sep 2009 16:13:31 +0200
From: Wolfram Sang <w.sang@pengutronix.de>
To: Dragos Carp <dragos.carp@toptica.com>
Subject: Re: [spi-devel-general] [PATCH] mpc52xx_psc_spi: enlarge clock range
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> I wasn't aware that MPC5200 differ from MPC5200B in this regard. I also
> couldn't find any MPC5200 user manual on Freescale's webpage.

Hmm, it was the first hit using a web search engine :)

http://www.freescale.com/files/microcontrollers/doc/user_guide/MPC5200UM.pd=
f?WT_TYPE=3DUsers%20Guides&WT_VENDOR=3DFREESCALE&WT_FILE_FORMAT=3Dpdf&WT_AS=
SET=3DDocumentation

> Is there a #define that I can use to distinguish between the two
> processor variants? Querying the PVR register is not a nice solution

I think you should have two different functions for calculation, one for 52=
00
and one for 5200B. During init query the device tree for 'fsl,mpc5200-psc-s=
pi'
or 'fsl,mpc5200b-psc-spi' and make the driver use the proper function.

(BTW I haven't checked for further differences between 5200 and 5200B; there
may be more)

Regards,

   Wolfram

--=20
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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