From a6e452e638b89451bd0aa3d1701b94536366f499 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com>
Date: Mon, 26 Jan 2026 22:42:54 +0100
Subject: [PATCH] Demagic PHY_MMD_AN, 33 to PHY_MMD_AN, PHY_ANEG_MGBASE_ADV

---
 phy.h         | 1 +
 rtl837x_phy.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/phy.h b/phy.h
index 38c7f4c..8e82547 100644
--- a/phy.h
+++ b/phy.h
@@ -23,6 +23,7 @@
 #define PHY_ANEG_ADV		0x10
 #define PHY_ANEG_LP_ABILITY	0x13
 #define PHY_ANEG_MGBASE_CTRL 0x20
+#define PHY_ANEG_MGBASE_ADV 0x21
 #define PHY_EEE_ADV		0x3c
 #define PHY_EEE_LP_ABILITY	0x3d
 #define PHY_EEE_ADV2		0x3e
diff --git a/rtl837x_phy.c b/rtl837x_phy.c
index a27a705..947b85b 100644
--- a/rtl837x_phy.c
+++ b/rtl837x_phy.c
@@ -410,7 +410,7 @@ void phy_show(uint8_t port) __banked
 		print_string(" 1000Base-Half");
 	if (v & 0x0800)
 		print_string(" 1000Base-Full");
-	phy_read(port, PHY_MMD_AN, 33);
+	phy_read(port, PHY_MMD_AN, PHY_ANEG_MGBASE_ADV);
 	v = SFR_DATA_U16;
 	if (v & 0x0020)
 		print_string(" 2500Base-Full");