topic T1022 serdes configuration 0x81 in QorIQ

T1022 serdes configuration 0x81

nikhiljain — Wed, 20 Mar 2024 13:29:59 GMT

Hello,

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

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.

Re: T1022 serdes configuration 0x81

Oswalag — Tue, 26 Mar 2024 19:11:47 GMT

Hello,

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

Re: T1022 serdes configuration 0x81

nikhiljain — Wed, 27 Mar 2024 02:42:44 GMT

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 not defined here.