On 8/20/07, robert lazarski robertlazarski@gmail.com wrote:
On 8/20/07, Andy Fleming afleming@gmail.com wrote:
Thanks Andy, as I don't have the mpc8548cds on hand. I can't find an 85xx example that has both PCIe and PCI2. What's confusing me is that I'm seeing this mapping on the mpc8541cds:
- 0xa000_0000 0xbfff_ffff PCI2 MEM 512M
And in mpc8548cds:
- 0xa000_0000 0xbfff_ffff PCIe MEM 512M
Well, keep in mind those are the comments. You might want to look at the config files to confirm the actual mappings.
Its legal on 85xx to define the same memory area for either PCI2 or PCIe ? If so, here's my idea. I don't have RapidIO - can I do use the memory map that mpc8548cds uses:
- 0xc000_0000 0xdfff_ffff RapidIO 512M
For my board as?
- 0xc000_0000 0xdfff_ffff PCI2 MEM 512M
You can do whatever you want. :) You just need to change the config file, and make sure that you have the appropriate entries in your init.S file to set the LAWs and TLBs appropriately.
Andy