KokHow Teh writes:
Teh> I am having trouble with my PQ2FADS-ZU board with a PQ2 8280 Teh> processor that when the localbus is put into PCI mode with LBPC Teh> = 01, all accesses to 60x bus SDRAM fails. Uboot failed in Teh> get_ram_size() routine. The selection of localbus operation Teh> mode is done by SW9. Switch the jumper back to localbus SDRAM Teh> mode, U-boot boots to the prompt and access to 60x SDRAM is Teh> fine. Does anybody have similar experience? Any insight is Teh> appreciated.
Such a configuration works OK for me. There are some things to check. You don't write what HRCW you use: from BCSR or from flash. If the latter, you have to change pin assignment bits and MODCKH accordingly. Also, clocks are calculated differently in PCI and local bus modes. Check the MODCK/MODCKH values (SW6). Valid local bus mode values can be invalid in PCI mode.