On 6/13/17 10:46 AM, Arun Parameswaran wrote: > > Hi Richard, > > On 17-06-12 10:09 PM, Richard Cochran wrote: >> On Mon, Jun 12, 2017 at 01:26:00PM -0700, Arun Parameswaran wrote: >>> +Example: >>> + >>> +ptp_dte: ptp_dte@180af650 { >>> + compatible = "brcm,ptp-dte"; >>> + reg = <0x180af650 0x10>; >>> + status = "okay"; >>> +}; >> This patch set looks okay, as far as it goes, but how does one >> actually use the clock? >> >> How does one connect this node to an Ethernet MAC, for example? > In some of the SoC's, the DTE's NCO is synced in hardware with the Ethernet's > 1588 Shim NCO (used for time-stamping the packets). We are working on getting > all the future SoC's synced this way (for Ethernet). > So apparently you do not need any phandle based DT binding defined for the connection between the Ethernet device node and the PTP device node? > In other scenarios, we use an user-space app to perform the sync based on > time-stamps from external hardware sources like the Wi-Fi. >> Thanks, >> Richard > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html