On Apr 7, 2006, at 5:35 AM, Wolfgang Denk wrote:
Dear Kumar,
in message F74FD79C-8F46-4465-93FB-54ADA4D017BC@kernel.crashing.org you wrote:
Any update on this?
Sorry for the delay...
No problem. I figured removing a second board port for the same HW would be a good thing :)
I was looking at merging the EMDS and ADS ports for MPC834x and was wondering about a few things:
- EMDS has TEXT_BASE @ 0xFE000000, and ADS at 0xFE700000 where do
you end up programming u-boot at? (for example what is the flash command you use to reprogram a u-boot image on the board).
We use exactly this address 0xFE000000, here is a command:
protect off FE000000 +${filesize}; era FE000000 +${filesize}; cp.b 100000 FE000000 ${filesize}
Where do you have the HW Config words coming from (BCSR, FLASH, ..)? When I use TEXT_BASE @ 0xFE000000 my system doesn't boot, I'll try out the command you suggest and see what happens.
- I had to rework the BATs to be able to cover everything properly
which also meant moving a few things around. CFG_BCSR 0xF8000000 -> 0xE2400000 CFG_INIT_RAM_ADDR 0xE8000000 -> 0xFD000000
This is so we can fit everything into the 8 BATS and maintain proper WIMG settings.
If you can explain the TEXT_BASE difference and how that works out and are ok with the changing of CFG_BCSR and CFG_INIT_RAM_ADDR then I'll push some patches to merge ADS & MDS, remove ADS, and we get PCI support on EMDS out of it.
These selection of addresses was made by a customer in his initial patch. I think the customer was trying to follow the memory map which is defined in the board User's Manual. And we just didn't change that. But I think that moving things around as you suggest should be fine as well.
I'll make this change then.
- kumar