Am 08.09.2010 02:23, schrieb Kevin O'Connor: > As an aside, I'm not sure of the value of TSC based delays if > inb(0x80) is used to time it. If the code assumes inb(0x80) is 1 > usecond, I'd think it could as easily use UDELAY_IO instead. I guess > we'll need to see if any boards need the new TSC_CALIBRATE_WITH_IO > setting. As I understand it, TSC from IO is still more reliable than UDELAY_IO as it uses a _large_ sampling of IO accesses to average out timing.
But I'm not sure how much difference that really makes. Patrick -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
