From: David Bauer 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 Tested-by: Tom Herbers Submitted-by: David Bauer --- 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 @@ -1380,5 +1380,6 @@ #define QCA956X_SGMII_CONFIG_MODE_CTRL_SHIFT 0 #define QCA956X_SGMII_CONFIG_MODE_CTRL_MASK 0x7 +#define QCA956X_SGMII_CONFIG_MODE_CTRL_SGMII_MAC 0x2 #endif /* __ASM_MACH_AR71XX_REGS_H */