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Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte based ptp clock

From Arun Parameswaran <arun.parameswaran@broadcom.com>
Newsgroups linux.kernel
Subject Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte based ptp clock
Date 2017-06-13 19:50 +0200
Message-ID <tRY70-2tP-21@gated-at.bofh.it> (permalink)
References <tRE8h-6Wq-7@gated-at.bofh.it> <tRE8i-6Wq-13@gated-at.bofh.it> <tRMpb-3Pk-17@gated-at.bofh.it>
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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).

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

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Thread

[PATCH v1 0/2] Add support for Broadcom DTE based PTP clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-12 22:30 +0200
  [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte based ptp clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-12 22:30 +0200
    Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Richard Cochran <richardcochran@gmail.com> - 2017-06-13 07:20 +0200
      Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-13 19:50 +0200
        Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Ray Jui <ray.jui@broadcom.com> - 2017-06-14 20:20 +0200
          Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-14 20:40 +0200
          Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-14 20:40 +0200
    Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Rob Herring <robh@kernel.org> - 2017-06-18 16:10 +0200
      Re: [PATCH v1 1/2] dt-binding: ptp: add bindings document for dte  based ptp clock Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-19 19:00 +0200
  [PATCH v1 2/2] ptp: Add a ptp clock driver for Broadcom DTE Arun Parameswaran <arun.parameswaran@broadcom.com> - 2017-06-12 22:30 +0200
  Re: [PATCH v1 0/2] Add support for Broadcom DTE based PTP clock David Miller <davem@davemloft.net> - 2017-06-15 18:10 +0200

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