* [PATCH net 1/1] docs: ptp.rst: add support for Renesas (IDT) ClockMatrix
@ 2020-07-14 17:15 min.li.xe
2020-07-17 17:25 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: min.li.xe @ 2020-07-14 17:15 UTC (permalink / raw)
To: richardcochran, corbet; +Cc: netdev, linux-kernel, linux-doc, Min Li
From: Min Li <min.li.xe@renesas.com>
Add below to “Ancillary clock features” section
- Low Pass Filter (LPF) access from user space
Add below to list of “Supported hardware” section
+ Renesas (IDT) ClockMatrix™
Signed-off-by: Min Li <min.li.xe@renesas.com>
---
Documentation/driver-api/ptp.rst | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/Documentation/driver-api/ptp.rst b/Documentation/driver-api/ptp.rst
index a15192e..664838a 100644
--- a/Documentation/driver-api/ptp.rst
+++ b/Documentation/driver-api/ptp.rst
@@ -23,6 +23,7 @@ PTP hardware clock infrastructure for Linux
+ Ancillary clock features
- Time stamp external events
- Period output signals configurable from user space
+ - Low Pass Filter (LPF) access from user space
- Synchronization of the Linux system time via the PPS subsystem
PTP hardware clock kernel API
@@ -94,3 +95,14 @@ Supported hardware
- Auxiliary Slave/Master Mode Snapshot (optional interrupt)
- Target Time (optional interrupt)
+
+ * Renesas (IDT) ClockMatrix™
+
+ - Up to 4 independent PHC channels
+ - Integrated low pass filter (LPF), access via .adjPhase (compliant to ITU-T G.8273.2)
+ - Programmable output periodic signals
+ - Programmable inputs can time stamp external triggers
+ - Driver and/or hardware configuration through firmware (idtcm.bin)
+ - LPF settings (bandwidth, phase limiting, automatic holdover, physical layer assist (per ITU-T G.8273.2))
+ - Programmable output PTP clocks, any frequency up to 1GHz (to other PHY/MAC time stampers, refclk to ASSPs/SoCs/FPGAs)
+ - Lock to GNSS input, automatic switching between GNSS and user-space PHC control (optional)
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net 1/1] docs: ptp.rst: add support for Renesas (IDT) ClockMatrix
2020-07-14 17:15 [PATCH net 1/1] docs: ptp.rst: add support for Renesas (IDT) ClockMatrix min.li.xe
@ 2020-07-17 17:25 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2020-07-17 17:25 UTC (permalink / raw)
To: min.li.xe; +Cc: richardcochran, corbet, netdev, linux-kernel, linux-doc
From: <min.li.xe@renesas.com>
Date: Tue, 14 Jul 2020 13:15:20 -0400
> From: Min Li <min.li.xe@renesas.com>
>
> Add below to “Ancillary clock features” section
> - Low Pass Filter (LPF) access from user space
>
> Add below to list of “Supported hardware” section
> + Renesas (IDT) ClockMatrix™
>
> Signed-off-by: Min Li <min.li.xe@renesas.com>
Applied, thank you.
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