On Monday 25 May 2009 09:35:48 胡洪兵 wrote: > yanh 写道: [...] > > the cs5536 pata driver have some geode platform dependent codes. We can > > just ignore it, but the performance is poor(using hdparm to test it), > > which only get 22+ MB/s. we find it only use udma2. However if using > > amd74xx driver, it can set udma5, and the speed can reach to 50+ MB/s. > > > > we will test whether this driver is working well without this patch. > > > > Anyway, thanks your advice. > > > Use the driver drivers/ata/pata_cs5536.c, unfortunately it also have the > same issue. Both drivers (pata_cs5536 & cs5536) should handle UDMA5. Could you please explain the issue with platform specific code a bit more? Is it related to a cable detection by any chance? Thanks. Bart
