Hi, "Marco Braga" <marco.braga@xxxxxxxxx> wrote: >Hello! > >2007/3/20, Takeyoshi Kikuchi <kikuchi@xxxxxxxxxxxxxxxx>: > >Our Au1500 board works fine with Ricoh CardBus Bridge and NEC USB >> controller. >> However, the board does not work stably with TI PCI1520 controller. > > >As you have seen, we've experienced the same problem with the PCI1510. Can >you please give me the exact product number of both the controllers you use >(USB / Cardbus)? In particular your cardbus experience is interesting >because from the informations I've received until now I tought that no >cardbus controller could work on Au1500's PCI. > >Thanks! The controllers are as follows: Cardbus Bridge: Ricoh R5C486 (Vendor/Device 1180:0476) USB Controller: NEC uPD720101 (CardBus) (Vendor/Device 1033:00e0) Ali IEEE1394/USB Combo (Vendor/Device 10b9:5239) also works. The combination of Au1500(MIPS32) and EHCI code has a problem: ll/sc always get locked when it manipulates an atomic variable in the EHCI descriptor (qh_get() in ehci-mem.c). We applied a patch that adds a function to lib/kref.c so that it doesn't use ll/sc. Linux 2.6.20 has a problem in ioremap, so we replaced the code with one in 2.6.19. --------------------------------- Takeyoshi Kikuchi
