How to access SGMII MDIO Register?

[kimpilyeon]

Hi

I using T2080 processor. 

I want to know method that access to MDIO_SGMII_CR, SR, register etc.

PCS MDIO register. clause 22 mode. 

Currently, SGMIInCR1[MDEV_PORT] value matches the Ethernet MAC PHY address
(MDIO_CTL[PHY_ADDR]). value is 0x0.

MDIO_SGMII_CR address offset is '0x0' in T2080RM datasheet. 

But I want to know physical address of MDIO_SGMII_CR registers. 

please help me. 

[kimpilyeon]

Hello. 

Thanks for your answer.

currently, I coding BSP and Drivers for T2080. 

so, I can't used above command. like 'mdio read'.

I want to know accessible address or accessible method. 

0xf_fe4f_c000 or 0xf_fee_1000 ?

both address describe mdio address in datasheet. 

please help me. 

[yipingwang]

Hello kim pilyeon,

mdio read <PHY address> <REGISTER Address>

Example:
=> mdio read eTSEC1 1
Reading from bus FSL_MDIO0
PHY at address 2:
1 - 0x796d

On T2080RDB

=> mdio list
FSL_MDIO0:
1 - RealTek RTL8211E <--> FM1@DTSEC3
2 - RealTek RTL8211E <--> FM1@DTSEC4
FM_TGEC_MDIO:
0 - Aquantia AQ1202 <--> FM1@TGEC3
1 - Aquantia AQ1202 <--> FM1@TGEC4
c - Cortina CS4315/CS4340 <--> FM1@TGEC1
d - Cortina CS4315/CS4340 <--> FM1@TGEC2

=> mdio read FM1@DTSEC3 8000
Reading from bus FSL_MDIO0
PHY at address 1:
32768 - 0x1140

Have a great day,
TIC

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