diff mbox

[net-next,v2,06/15] dt-bindings: net: dwmac-sun8i: Add binding for GMAC on Allwinner R40 SoC

Message ID 20180501161227.2110-7-wens@csie.org (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Chen-Yu Tsai May 1, 2018, 4:12 p.m. UTC
The Allwinner R40 SoC has the EMAC controller supported by dwmac-sun8i.
It is named "GMAC", while EMAC refers to the 10/100 Mbps Ethernet
controller supported by sun4i-emac. The controller is the same, but
the R40 has the glue layer controls in the clock control unit (CCU),
with a reduced RX delay chain, and no TX delay chain.

This patch adds the R40 specific bits to the dwmac-sun8i binding.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 Documentation/devicetree/bindings/net/dwmac-sun8i.txt | 3 +++
 1 file changed, 3 insertions(+)

Comments

Rob Herring May 1, 2018, 4:28 p.m. UTC | #1
On Wed, May 02, 2018 at 12:12:18AM +0800, Chen-Yu Tsai wrote:
> The Allwinner R40 SoC has the EMAC controller supported by dwmac-sun8i.
> It is named "GMAC", while EMAC refers to the 10/100 Mbps Ethernet
> controller supported by sun4i-emac. The controller is the same, but
> the R40 has the glue layer controls in the clock control unit (CCU),
> with a reduced RX delay chain, and no TX delay chain.
> 
> This patch adds the R40 specific bits to the dwmac-sun8i binding.
> 
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> ---
>  Documentation/devicetree/bindings/net/dwmac-sun8i.txt | 3 +++
>  1 file changed, 3 insertions(+)

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
index 1c0906a5c02b..cfe724398a12 100644
--- a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
+++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
@@ -7,6 +7,7 @@  Required properties:
 - compatible: must be one of the following string:
 		"allwinner,sun8i-a83t-emac"
 		"allwinner,sun8i-h3-emac"
+		"allwinner,sun8i-r40-gmac"
 		"allwinner,sun8i-v3s-emac"
 		"allwinner,sun50i-a64-emac"
 - reg: address and length of the register for the device.
@@ -25,8 +26,10 @@  Required properties:
 Optional properties:
 - allwinner,tx-delay-ps: TX clock delay chain value in ps.
 			 Range is 0-700. Default is 0.
+			 Unavailable for allwinner,sun8i-r40-gmac
 - allwinner,rx-delay-ps: RX clock delay chain value in ps.
 			 Range is 0-3100. Default is 0.
+			 Range is 0-700 for allwinner,sun8i-r40-gmac
 Both delay properties need to be a multiple of 100. They control the
 clock delay for external RGMII PHY. They do not apply to the internal
 PHY or external non-RGMII PHYs.