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-rw-r--r--target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch21
1 files changed, 21 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch b/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch
index bf7cbf2716..4c2b94899a 100644
--- a/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch
+++ b/target/linux/ath79/patches-5.10/0040-ath79-sgmii-config.patch
@@ -1,3 +1,24 @@
+From: David Bauer <mail@david-bauer.net>
+Subject: [PATCH] ath79: force SGMII SerDes mode to MAC operation
+
+The mode on the SGMII SerDes on the QCA9563 is 1000 Base-X by default.
+This only allows for 1000 Mbit/s links, however when used with an SGMII
+PHY in 100 Mbit/s link mode, the link remains dead.
+
+This strictly has nothing to do with the SerDes calibration, however it
+is done at the same point in the QCA reference U-Boot which is the
+blueprint for everything happening here. As the current state is more or
+less a hack, this should be fine.
+
+This fixes the issues outlined above on a TP-Link EAP-225 Outdoor.
+
+Reported-by: Tom Herbers <freifunk@tomherbers.de>
+Tested-by: Tom Herbers <freifunk@tomherbers.de>
+Submitted-by: David Bauer <mail@david-bauer.net>
+---
+ arch/mips/include/asm/mach-ath79/ar71xx_regs.h | 1 +
+ 1 files changed, 1 insertion(+)
+
--- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
@@ -1376,5 +1376,6 @@