Dear Peter Chen, > On Sat, Oct 12, 2013 at 11:38:16AM +0200, Marek Vasut wrote: > > Hi, > > > > > After adding IC fixes bits, some PHY bugs are fixed by > > > IC logic. > > > > Can you please elaborate what those bits do exactly ? They seem like a > > magic stuff to me thus far, which is not exactly helpful . I can't find > > them in the datasheet either. > > Yes, these bits are added at late TO verion for i.mx 6, and these TO > versions will be for mass production, unfortunately, the related doc > update may be forgotten. > > These two bits are related to two PHY bugs, two PHY bugs are still existed > at mx28 and mx23, one bug is fixed at mx6dq and mx6dl, and both of two > bugs are fixed at later mx6 (like mx6sololite and later SoCs), but the IC > fixes are not enabled by default, it needs software opens it. Sure, I get it. But what exactly does that bit do? Can you add a proper (and likely beefy) comment into the code to supplement the missing parts in the datasheet? Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html