T1022 serdes configuration 0x81

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T1022 serdes configuration 0x81

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nikhiljain
Contributor I

Hello,

 

We are using T1022 processor. I am able to boot the pro

IMG20240319112341.jpg

cessor. Board is working fine for serdes configuration 0x85/0x87 etc. but when I try to use 0x81 , it is showing as serdes configuration is not valid. I have enabled both the serdes pll. No pll is power down as was done for 85 and 87. Please see the log screenshot. 

Please suggest if we need to do any other changes to RCW for the same. 

 

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Oswalag
NXP TechSupport
NXP TechSupport

Hello,  

Supported protocols are defined in the u-boot/arch/powerpc/cpu/mpc85xx/t1040_serdes.c:

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nikhiljain
Contributor I

Hello,

Serdes protocols defined in the file at the below link do not have all the supported configurations but mentioned in the RM. Like serdes configuration - 0x88 , 0x45 , 0x81 are not defined in the file. Do we need to add them manually in the code and check if that works ?

0x81 is valid according to this.0x81 is valid according to this.

 

0x81 is not defined here.0x81 is not defined here.

 

 

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