LS1088A DDR Size Problem

[TahaBenderli]

Hello,

we are having a DDR4 size problem on LS1088a platform.  We have 4GB DDR4 on the board. When u-boot starts it is confirmed that board has 4GB DDR4. But when we checked on kernel with cat /proc/meminfo or free commands, it shows that RAM is 2GB.  Do you have any idea why are we having mismatch DDR size in u-boot and kernel ?

Attached photos you can see the differences.

[mcbridematt · Accepted solution]

The 2GB is being reserved for the DPAA2 MC memory. The best solution is to delete the "mcmemsize" variable from your U-Boot configuration which will reduce the total reservation down to 512MB.

[TahaBenderli]

Thanks. I changed the value of the mcmemsize but it seems solution is deleting it. Now DDR size is 3.6 Gbytes.