On Wed, Oct 25 at 05:53 PM sinkin wrote: > > > > The PCMCIA bus. > > > Yes, I agreed with you early on. But when i change the value of > SOC_PCMCIA_IO_ACCESS from 165 to 10(I think the CF card work under io > mode when using idecs driver), the high speed CF card's write speed > can reach to 6MB/s.
If it works, that's great. You are no longer conforming to PCMCIA bus timing parameters. Most discrete bridge chips don't support tweaking the bus timings to that extent, and/or are limited by the maximum polled IO rate for the host CPU. It looks like the constraints are different for your board. -- Dave _______________________________________________ Linux PCMCIA reimplementation list http://lists.infradead.org/mailman/listinfo/linux-pcmcia
