topic Re: IO mapping in T2080 in T-Series

IO mapping in T2080

anshulkhare — Mon, 29 Oct 2018 08:52:35 GMT

Hello All

we have T2081 custom board based on T2080RDB-PC,

i am confused in pin muxing and input output mapping,

as in case of IMX6UL we are specifically having pin muxing related header file present in U-boot and kernel,

i am trying to find the same for t2080RDB which i am not getting.

to configure the IO mapping as per the our custom board.

Any suggestion would be appreciated,kindly help to solve this issue.

Reagrds,

Anshul

Re: IO mapping in T2080

ufedor — Tue, 30 Oct 2018 01:57:43 GMT

From the provided wording it is not clear which exactly "pin muxing" is in question - please elaborate.

Consider that GPIO function can be assigned to several signals only in RCW and can't be altered by software means - refer to the QorIQ T2080 Reference Manual, Table 4-14. RCW Field Descriptions.

Re: IO mapping in T2080

anshulkhare — Tue, 30 Oct 2018 06:35:11 GMT

Hello ufedor,

we are using T2081 custom board based on T2080RDB-PC,

in which we have connected peripherals on few of the IO pins of T2081,

that pin mapping we have to assign in U-boot and kernel,

for which i am trying to find the respective header files which i am not getting,

How to configure the IO as per the our custom board.

Thanks in advance.

Regards,

Anshul

Re: IO mapping in T2080

ufedor — Tue, 30 Oct 2018 07:04:29 GMT

GPIO function can be assigned to several signals only in RCW and can't be altered by software means - refer to the QorIQ T2080 Reference Manual, Table 4-14. RCW Field Descriptions.

RCW can be modified/customized by means of the QCVS PBL Tool - refer to the QCVS PBL Tool User Guide:

https://www.nxp.com/docs/en/user-guide/QCVS_PBL_User_Guide.pdf

Also please consider following Community questions:

Accessing GPIO in QorIQ u-boot

https://community.nxp.com/message/946458?sr=search&searchId=15293814-ef10-41a6-838b-6ca58375b461&searchIndex=1