[PATCH v2 06/24] dt-bindings: net: dwmac: Add Tx/Rx clock sources

Serge Semin
2021-02-08T14:09:24Z

Generic DW *MAC can be connected to an external Transmit and Receive clock
generators. Add the corresponding clocks description and clock-names to
the generic bindings schema so new DW *MAC-based bindings wouldn't declare
its own names of the same clocks.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/net/snps,dwmac.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 21e53427551c..56baf8e6bf17 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -126,6 +126,18 @@ properties:
MCI, CSR and SMA interfaces run on this clock. If it's omitted,
the CSR interfaces are considered as synchronous to the system
clock domain.
+ - description:
+ GMAC Tx clock or so called Transmit clock. The clock is supplied
+ by an external with respect to the DW MAC clock generator.
+ The clock source and its frequency depends on the DW MAC xMII mode.
+ In case if it's supplied by PHY/SerDes this property can be
+ omitted.
+ - description:
+ GMAC Rx clock or so called Receive clock. The clock is supplied
+ by an external with respect to the DW MAC clock generator.
+ The clock source and its frequency depends on the DW MAC xMII mode.
+ In case if it's supplied by PHY/SerDes or it's synchronous to
+ the Tx clock this property can be omitted.
- description:
PTP reference clock. This clock is used for programming the
Timestamp Addend Register. If not passed then the system
@@ -139,6 +151,8 @@ properties:
enum:
- stmmaceth
- pclk
+ - tx
+ - rx
- ptp_ref

resets:
--
2.29.2