Dear community,
I own a rock-pi-3a board with 8G ram. Right now, radxa's u-boot is capable of detecting the whole amount during boot. Upstream u-boot shows 1G of dram installed.
I've started with evb-rk3568_defconfig.
What I would like to achieve is that u-boot load grub-efi, to finally boot the operating system. Howewer, with radxa uboot, and using grub-efi, the kernel sees 4G only. If I boot the kernel image directly from radxa u-boot, the whole 8G is visible. I assume that efi is broken somehow, as I get multiple warnings from kernel regarding EFI firmware.
Reading radxa's u-boot, it seems that it uses ATAGs do detect memory size. Am I in the right way?
Would it be beneficial to port some of that code to upstream u-boot, or are there other solutions to detect correct memory size?
Thanks in advance, Richard