From: Scott Wood >Hmm... that suggests that something in u-boot's setup is either >incorrect, or (more likely in this case) doesn't match the device tree.
Turns out u-boot was not setting u the inbound window size correctly. It was hardcoded to 512MB and we have a gig of ram. Set it correctly, and CPI now works fully even without fixup_pci() >Ah. Yes, I was assuming both windows would be the same size. The code >should be changed to check that, and if any conditions for setting >PCIBRx/PCIMSKx fail, check to see if the firmware-provided values work >(and if not, bail without touching anything). yup. In our case we only need one window. BTW. there is a bug in the inbound window size calculation. The mem_log2 variable sould be the shift value, not 1<< shift. and on the next line the window size mask sould be anded with 0x000f_ffff before or'ed with 0xa000_0000
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