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 Cheers, _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
