diff mbox

[v3,1/3] Documentation: devicetree: Add PHY no lane swap binding

Message ID 1486444894-12841-1-git-send-email-lukma@denx.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Lukasz Majewski Feb. 7, 2017, 5:21 a.m. UTC
Add the documentation to avoid PHY lane swapping. This is a boolean
entry to notify the phy device drivers that the TX/RX lanes NO need
to be swapped.
The use case for this binding mostly happens after wrong HW
configuration of PHY IC during bootstrap.

Signed-off-by: Lukasz Majewski <lukma@denx.de>

---
Changes for v3:
- Change binding to property
---
 Documentation/devicetree/bindings/net/phy.txt | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Andrew Lunn Feb. 7, 2017, 1:02 p.m. UTC | #1
On Tue, Feb 07, 2017 at 06:21:34AM +0100, Lukasz Majewski wrote:
> Add the documentation to avoid PHY lane swapping. This is a boolean
> entry to notify the phy device drivers that the TX/RX lanes NO need
> to be swapped.
> The use case for this binding mostly happens after wrong HW
> configuration of PHY IC during bootstrap.

Ah! O.K. Something odd going on with the threading of the patches. 1/3
seems to be last!

> Signed-off-by: Lukasz Majewski <lukma@denx.de>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew
David Miller Feb. 7, 2017, 6:59 p.m. UTC | #2
From: Lukasz Majewski <lukma@denx.de>
Date: Tue,  7 Feb 2017 06:21:34 +0100

> Add the documentation to avoid PHY lane swapping. This is a boolean
> entry to notify the phy device drivers that the TX/RX lanes NO need
> to be swapped.
> The use case for this binding mostly happens after wrong HW
> configuration of PHY IC during bootstrap.
> 
> Signed-off-by: Lukasz Majewski <lukma@denx.de>

Applied.
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index fb5056b..b558576 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -39,6 +39,10 @@  Optional Properties:
 - enet-phy-lane-swap: If set, indicates the PHY will swap the TX/RX lanes to
   compensate for the board being designed with the lanes swapped.
 
+- enet-phy-lane-no-swap: If set, indicates that PHY will disable swap of the
+  TX/RX lanes. This property allows the PHY to work correcly after e.g. wrong
+  bootstrap configuration caused by issues in PCB layout design.
+
 - eee-broken-100tx:
 - eee-broken-1000t:
 - eee-broken-10gt: