From: Swapnil Jakhade <redacted>

XAUI (eXtended Attachment Unit Interface) is a high-speed serial interface
standard for 10 Gigabit Ethernet (10GbE). It uses four lanes with each
lane operating at 3.125 Gbps (totaling 10 Gbps), to extend the XGMII
interface across circuit boards, commonly used in backplanes for
networking switches and high-performance computing. XAUI is defined as a
standardized instantiation of XGMII Extender in the IEEE 802.3
specification.

Add definition for XAUI PHY type.

Signed-off-by: Swapnil Jakhade <redacted>
[s-vadapalli: added detailed description of XAUI in the commit message]
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
---

v1 of this patch is at:
https://lore.kernel.org/r/20251224054905.763399-2-s-vadapalli@ti.com/ (local)
Changes since v1:
- The commit message has been updated to provide a detailed description of
  XAUI based on feedback from Krzysztof at:
  https://lore.kernel.org/r/20251227-airborne-energetic-kingfisher-adc4fb@quoll/ (local)

Regards,
Siddharth.

 include/dt-bindings/phy/phy.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h
index 6b901b342348..d77b372d302f 100644
--- a/include/dt-bindings/phy/phy.h
+++ b/include/dt-bindings/phy/phy.h

@@ -23,5 +23,6 @@
 #define PHY_TYPE_DPHY		10
 #define PHY_TYPE_CPHY		11
 #define PHY_TYPE_USXGMII	12
+#define PHY_TYPE_XAUI		13
 
 #endif /* _DT_BINDINGS_PHY */

-- 
2.51.1