rockchip: sdram: Allow the first bank to extend beyond 4 GiB

Allow the first bank to extend beyond 4 GiB when the blob of space for
peripheral is located before start of DRAM, e.g. when start of DRAM
is 0x40000000 and continue beyond the 4 GiB mark.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed