On Fri, 2014-11-07 at 03:38 -0600, Emil Medve wrote: > Hello Scott, > > > On 11/07/2014 02:19 AM, Scott Wood wrote: > > On Fri, 2014-11-07 at 02:14 -0600, Emil Medve wrote: > >> Hello Scott, > >> > >> > >> On 11/07/2014 01:34 AM, Scott Wood wrote: > >>> On Fri, 2014-11-07 at 01:31 -0600, Emil Medve wrote: > >>>> Hello Scott, > >>>> > >>>> > >>>> On 11/06/2014 03:49 PM, Scott Wood wrote: > >>>>> On Wed, 2014-11-05 at 09:18 -0600, Emil Medve wrote: > >>>>>> +Devices connected to a BMan instance via Direct Connect Portals (DCP) must link > >>>>>> +to the respective BMan instance > >>>>>> + > >>>>>> +- fsl,bman > >>>>>> + Usage: Required > >>>>>> + Value type: <prop-encoded-array> > >>>>>> + Description: List of phandle and DCP index pairs, to the BMan instance > >>>>>> + to which this device is connected via the DCP > >>>>> > >>>>> Does software need the DCP index (though for QMan there do seem to be a > >>>>> few registers associated with each DCP)? Where can I find that info in > >>>>> the manual? > >>>> > >>>> The DCP index helps describe the topology of the devices connected to > >>>> the B/QMan. One might be tempted to use some address to reference said > >>>> DCP, unfortunately the pertinent registers/bits for said DCP(s) are not > >>>> into a compact region. Look at the CCSR memory map for B/QMan > >>>> > >>>> In the QMan case things are marginally better. For each hardware portal > >>>> there are a handful of (vaguely named *DCx*, *DCPx* or *DCP*) registers > >>>> (configuration, performance monitoring and debugging). However, still > >>>> registers and bits spread here and there > >>>> > >>>> In the BMan case things are a bit worse as the registers names are less > >>>> friendly and still spread around > >>>> > >>>> Do you need specific names/offsets? > >>> > >>> My question about the manual wasn't rhetorical -- I tried to find this > >>> information and couldn't. > >> > >> I get that. As I said, the registers/bits are spread around in the CCSR > >> space of each block and not named excessively friendly. As such I hinted > >> for some search patterns to make it easier to find them. In order to > >> progress the review I'm willing to prepare a list. Just let me know > > > > Could you point me to the section of the manual where this information > > is -- friendly or otherwise? I saw the QMan direct connect portal > > registers. I didn't see how to tell which <i> in DCPi_xxx goes with > > which device. > > For QMan look into section '6.3.10 Direct Connect Portals (DCPs)'. The > BMan DCP assignment is the same Thanks, I'm not sure how I missed that. -Scott -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
