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authorGrant Likely <grant.likely@secretlab.ca>2009-01-29 17:08:41 -0700
committerGrant Likely <grant.likely@secretlab.ca>2009-01-29 17:08:41 -0700
commite489a44e2473981474fe17f17418828ba341661a (patch)
treeab28f44fbc8febc5827db61439d7b4d2c9811efa /Documentation
parentd35ec494a68218d646f31d8b4f03ddd39b262a3e (diff)
powerpc/5200: Bugfix for PCI mapping of memory and IMMR
This patch ensures that memory gets properly mapped into the PCI address space. Without this patch, the memory window BAR is left at whatever value happened to be loaded into the BAR when Linux was booted. Without this patch, memory could end up getting mapped at any of the 1G address boundaries instead of at '0' where Linux expects it. Similarly, this patch also ensures that the internally memory mapped registers (IMMR) are mapped to the correct PCI address range. Without this patch, PCI appears to work correctly until a PCI device is inserted which DMAs into memory. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
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