[LX2160ARDB] Board Rev.C Ethernet connection

[jhkim2]

Hi,
I have used LSDK20.04 with LX2160ARDB of which version is Rev.B.

When I downgrade F/W and OS with LSDK20.04 on new board LX2160ARDB rev.C,  I have a network problem of DPMAC.3 or DPMAC.4 that ethenet connection fails.

I guess the OS cannot detect 10G phy.

(1) What is the difference between Rev.B and Rev.C?

(2) Should I use LSDK20.12 or higher version with LX2160ardb Rev.C board?

Thanks in advance.

J.Hwan Kim

[yipingwang]

1. The main difference is that 10G AQR PHYs have been changed, PHY addresses are also changed.

Please refer to the following in LSDK 21.08 for Rev C in u-boot source code.

/* MAC/PHY configuration */
#if defined(CONFIG_FSL_MC_ENET)
#define CONFIG_MII
#define CONFIG_ETHPRIME "DPMAC1@xgmii"
#define AQR113C_PHY_ADDR1 0x0
#define AQR113C_PHY_ADDR2 0x08

Please refer to the following in LSDK 20.04 for Rev B in u-boot source code.

#define AQR107_PHY_ADDR1 0x04
#define AQR107_PHY_ADDR2 0x05
#define AQR107_IRQ_MASK 0x0C

2. For LX2160ardb Rev.C board, please use LSDK 21.08.