Hi Vivek, On Wednesday 20 November 2013 09:14 PM, Kishon Vijay Abraham I wrote: > Hi, > > On Wednesday 20 November 2013 03:02 PM, Vivek Gautam wrote: >> On Wed, Nov 20, 2013 at 2:34 PM, Kishon Vijay Abraham I <kishon@xxxxxx> wrote: >>> On Wednesday 20 November 2013 02:27 PM, Vivek Gautam wrote: >>>> Hi Kishon, >>>> >>>> >>>> On Mon, Nov 11, 2013 at 4:41 PM, Kishon Vijay Abraham I <kishon@xxxxxx> wrote: >>>>> Hi, >>>> sorry for the delayed response. >>>> >>>>> >>>>> On Wednesday 06 November 2013 05:37 AM, Jingoo Han wrote: >>>>>> On Wednesday, November 06, 2013 2:58 AM, Vivek Gautam wrote: >>>>>>> On Tue, Nov 5, 2013 at 5:33 PM, Jingoo Han <jg1.han@xxxxxxxxxxx> wrote: >>>>>> >>>>>> [.....] >>>>>> >>>>>>>> USB3.0 PHY consists of two blocks such as 3.0 block and 2.0 block. >>>>>>>> This USB3.0 PHY can support UTMI+ and PIPE3 interface for 3.0 block >>>>>>>> and 2.0 block, respectively. >>>>>>>> >>>>>>>> Conclusion: >>>>>>>> >>>>>>>> 1) USB2.0 PHY: USB2.0 HOST, USB2.0 Device >>>>>>>> Base address: 0x1213 0000 >>>>>>>> >>>>>>>> 2) USB3.0 PHY: USB3.0 DRD (3.0 HOST & 3.0 Device) >>>>>>>> Base address: 0x1210 0000 >>>>>>>> 2.0 block(UTMI+) & 3.0 block(PIPE3) >>>>>>> >>>>>>> And this is of course the PHY used by DWC3 controller, which works at >>>>>>> both High speed as well as Super Speed. >>>>>>> Right ? >>>>>> >>>>>> Right. >>>>>> >>>>>> While 3.0 block(PIPE3) can be used for Super Speed, 2.0 block(UTMI+) >>>>>> can be used for High speed. >>>>> >>>>> It should then come under *single IP muliple PHY* category similar to what >>>>> Sylwester has done. >>>> >>>> Do you mean that i should be including PHY IDs for UTMI+ phy and PIPE3 >>>> phy present in this PHY block ? >>>> AFAICS the two phys (UTMI+ and PIPE3) do not really have separate >>>> registers to program, and that's the reason >>>> we program the entire PHY in a shot. >>> >>> you mean you program the same set of bits for UTMI+ and PIPE3? >> >> No, looking closely into PHY datasheet as well as Exynos5250 manual, i >> can see that UTMI+ and PIPE3 >> phys have separate bit settings. So i think we should be able to >> segregate the two PHYs (UTMI+ and PIPE3). >> Pardon me for my earlier observations. > > no problem.. >> Let me clarify more with our h/w team also on this and then i will >> confirm with this. Did you get more information on this? Thanks Kishon -- 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
