On Monday 09 June 2008 01:28, Grant Likely wrote: > On Sun, Jun 8, 2008 at 1:08 PM, Jon Smirl <[EMAIL PROTECTED]> wrote: > > Why not a compatible field in the top of the tree? Then you wouldn't > > need to list the boards in mpc5200_simple.c. > > compatible = "phytec,pcm030","simple-mpc5200"; > > Here's the problem; what does compatible really mean at the board > level? Does it mean the board has 100% of the same capabilities? > Does it mean that it uses the same chip? Does it mean that the chip > is configured in a particular way? It is really hard to define what a > compatible value means at the board level. The meaning of compatible > at the device level is very well defined, but that meaning does not > extend well to the board level. > > Therefore, it is best to be conservative here and require a specific > list of supported boards in platform code. > > Besides, it is really a Linux specific thing that is trying to be > described. In Linux, we've decided to support as many 5200 boards as > possible using the same platform code, but that may not be true, or it > may be a different set of boards, when a different OS is used. To > attempt to encode those decisions is overreaching the intent of using > the device tree. > > > Device tree has an entry for AC97 on PSC1. I don't think the Phytec > > module or carrier board has AC97 hardware. > > Might be a bug
NACK. The baseboard for the pcm030 CPU board has AC97 hardware connected to PSC1. And it plays audio... > > The RTC chip says pcf8563, phytec doc says it is a pcf8564. > > Sounds like a bug These devices are mostly the same. You can use the pcf8563 driver for the pcf8564. > > There should be an i2c entry for the eeprom but I don't know the part > > number for it. > > Yes, i2c devices should be described. Its a 24C32. I believe Wolfram has a newer OFtree for the pcm030 so I add him as CC. Regards, Juergen -- Dipl.-Ing. Juergen Beisert | http://www.pengutronix.de Pengutronix - Linux Solutions for Science and Industry Handelsregister: Amtsgericht Hildesheim, HRA 2686 Vertretung Sued/Muenchen, Germany Phone: +49-8766-939 228 | Fax: +49-5121-206917-9 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
