Hi all,
I am working on a custom board equipped with the DM8168.
We have included 1Gbytes of DDR3.
I am currently testing the board with a DDR PLL set at 400Mhz, slower that the EVM settings.
So we modified the u-boot and we are getting the mmc_send_cmd: timedout waiting for cmddis! error.
The 1st stage of the u-boot (MLO) is loaded successfuly and run. But looks like the 2nd stage of the u-boot can't get loaded.
I am wondering if the timeout has something to do with slowing the DDR3 access.
Does the MMC clock dependent on the DDR PLL clock? (should not be?).
Can the timeout be triggered because it is slower to move data from MMC to the DDR3?
The 1st stage u-boot (MLO) is sending:
mmc_send_cmd: timedout waiting for cmddis!
** Can't read from device 0 **
** Unable to use mmc 0:1 for fatload **
## Starting application at 0x80800000 ...
We have configured the u-boot for DDR3.
Are we missing something?
Thx
KB