mediatek/mt8173: memlayout: Create DRAM DMA region for NOR flash DMA read.

NOR flash has a hardware limitation that it can't access SRAM region
after 4GB mode is enabled. We add a DRAM DMA region after 0x40000000
for NOR flash driver. So that the NOR flash driver can use this region
after 4GB mode is enabled.

BRANCH=none
BUG=chormoe-os-partner:49229
TEST=Boot to kernel on rev4 w/ 2GB ram and rev3 w/ 4GB ram.
     And check /proc/meminfo.

Change-Id: I4a86f0028b26509589ec8d09e2d077920446ece1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: dc61ec55187959101a9e891fe5e93928e9b8176e
Original-Change-Id: Ifedc9e2dfba5d294297b3a28134997ac1dd38f94
Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/327962
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/331177
Original-Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Original-Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/13989
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

0 files changed, 0 insertions, 0 deletions