On Dunnersdag 19 Mai 2005 06:56, Benjamin Herrenschmidt wrote:
d) the /memory node(s) Required properties:
- name : has to be "chosen"
s/chosen/memory/
c) The /chosen node
- linux,platform : This is your platform number as assigned by the architecture maintainers
Does this mean you want a new platform number for every board type? I would guess that it might be easier to extend the maple platform to support all boards with ppc970 and similar CPUs (except the pmac and pSeries ones), just like I would like to extend the BPA platform for all Cell based systems.
This is all that is currently required. However, it is strongly recommended that you expose PCI host bridges as documented in the PCI binding to open firmware, and your interrupt tree as documented in OF interrupt tree specification.
AFAICS, the pci device tree is currently required if you want to use an IOMMU or if you want PCI-X or PCIe style devices with extended PCI config space. I wouldn't be surprised if other functionality also depends on it.
Arnd <><