From c9a82b550a74374f774570660f75c3b1d32a5783 Mon Sep 17 00:00:00 2001
From: logicog <git@logicog.de>
Date: Wed, 6 Aug 2025 08:22:19 +0200
Subject: [PATCH] Fix for issue #3 reported by airjinkela: wrong register ID
 exceeding 16bit

---
 rtl837x_phy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rtl837x_phy.c b/rtl837x_phy.c
index f6fee52..7deb67c 100644
--- a/rtl837x_phy.c
+++ b/rtl837x_phy.c
@@ -230,12 +230,12 @@ void phy_set_mode(uint8_t port, uint8_t speed, uint8_t flow_control, uint8_t dup
 	phy_read(port, 0x1f, 0xa610);
 	v = (((uint16_t)SFR_DATA_8) << 8) | SFR_DATA_0;
 	if (speed == PHY_OFF) {
-		phy_write(bit_mask[port], 0x1f, 0xa4610, v | 0x0800);
+		phy_write(bit_mask[port], 0x1f, 0xa610, v | 0x0800);
 		return;
 	}
 	// Port is on, make sure of it:
 	if (v & 0x0800)
-		phy_write(bit_mask[port], 0x1f, 0xa4610, v & 0xf7ff);
+		phy_write(bit_mask[port], 0x1f, 0xa610, v & 0xf7ff);
 
 	if (speed == PHY_SPEED_AUTO) {
 			// AN Advertisement Register (MMD 7.0x0010)