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dt-binding: ptp_qoriq: add DPAA FMan support

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This patch is to add bindings description for DPAA
FMan 1588 timer, and also remove its description in
fsl-fman dt-bindings document.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yangbo Lu 2018-06-25 20:37:09 +08:00 committed by David S. Miller
parent a8f62d0c6f
commit 2cb785b496
2 changed files with 13 additions and 27 deletions
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25
Documentation/devicetree/bindings/net/fsl-fman.txt
View File

@ -356,30 +356,7 @@ ethernet@e0000 {
============================================================================
FMan IEEE 1588 Node
DESCRIPTION
The FMan interface to support IEEE 1588
PROPERTIES
- compatible
Usage: required
Value type: <stringlist>
Definition: A standard property.
Must include "fsl,fman-ptp-timer".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property.
EXAMPLE
ptp-timer@fe000 {
compatible = "fsl,fman-ptp-timer";
reg = <0xfe000 0x1000>;
};
Refer to Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
=============================================================================
FMan MDIO Node

15
Documentation/devicetree/bindings/ptp/ptp-qoriq.txt
View File

@ -2,7 +2,8 @@
General Properties:
- compatible Should be "fsl,etsec-ptp"
- compatible Should be "fsl,etsec-ptp" for eTSEC
Should be "fsl,fman-ptp-timer" for DPAA FMan
- reg Offset and length of the register set for the device
- interrupts There should be at least two interrupts. Some devices
have as many as four PTP related interrupts.
@ -43,14 +44,22 @@ Clock Properties:
value, which will be directly written in those bits, that is why,
according to reference manual, the next clock sources can be used:
For eTSEC,
<0> - external high precision timer reference clock (TSEC_TMR_CLK
input is used for this purpose);
<1> - eTSEC system clock;
<2> - eTSEC1 transmit clock;
<3> - RTC clock input.
When this attribute is not used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.
For DPAA FMan,
<0> - external high precision timer reference clock (TMR_1588_CLK)
<1> - MAC system clock (1/2 FMan clock)
<2> - reserved
<3> - RTC clock oscillator
When this attribute is not used, the IEEE 1588 timer reference clock
will use the eTSEC system clock (for Gianfar) or the MAC system
clock (for DPAA).
Example: