Hi,
we are working with a custom board, that implemented data lines swapping, the note says target DDR IC register read value must be transposed according to the data line swapping.
Where should I look to set this transpose value into the yocto configuration? Or how this transpose is configured?
已解决! 转到解答。
There is no need for additional mapping or software reconfiguration, as
it is done automatically. Bit swapping is described in sect.3.5.1 Swapping data lines IMX6DQ6SDLHDG
Hi juanalbertogonz
regarding " target DDR IC register read value must be transposed according to the data line swapping." -
this is needed for reading MR registers of ddr part. For DDR3(L) memories such reading is not
used. So this may be ignored for DDR3(L).
Best regards
igor