rpi: Add a local get_effective_memsize()

We are about to change the place we call dram_init_banksize().
The goal is to have all the information we need to pick a proper
relocation address in gd->dram[].

However, the RPI boards, and specifically the tested rpi4, seems
to hang if we relocate anywhere above the address returned from
bcm2835_mbox_call_prop().
So store that address and return it on get_effective_memsize()
which is used to calculate ram_top.

Reviewed-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>   # rpi, rpi4
Signed-off-by: Ilias Apalodimas <[email protected]>
Tested-by: Christophe Leroy (CS GROUP) <[email protected]>

0 files changed, 0 insertions, 0 deletions