Re: [spi-devel-general] [PATCH] mpc52xx_psc_spi: enlarge clock range

[Wolfram Sang <w.sang@pengutronix.de>]

[-- Attachment #1: Type: text/plain, Size: 1017 bytes --]

> 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.pdf?WT_TYPE=Users%20Guides&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation

> 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 5200
and one for 5200B. During init query the device tree for 'fsl,mpc5200-psc-spi'
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

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

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]