[RK 3399][Android 7.1]デバッグノート---DDR周波数を933 MHzに上げる

OS: Android 7.1 Board: Firefly-RK3399 Kernel: v4.4.55
デフォルトでは800 MHzが使用されています.

kris@eco:~/firefly_rk3399$ g df u-boot/
diff --git a/u-boot/tools/rk_tools/RKBOOT/RK3399MINIALL.ini b/u-boot/tools/rk_tools/RKBOOT/RK3399MINIALL.ini
index a79d359..d027d91 100755
--- a/u-boot/tools/rk_tools/RKBOOT/RK3399MINIALL.ini
+++ b/u-boot/tools/rk_tools/RKBOOT/RK3399MINIALL.ini
@@ -14,7 +14,7 @@ Path1=tools/rk_tools/bin/rk33/rk3399_usbplug_v1.06.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=tools/rk_tools/bin/rk33/rk3399_ddr_800MHz_v1.08.bin
+FlashData=tools/rk_tools/bin/rk33/rk3399_ddr_933MHz_v1.08.bin
 FlashBoot=tools/rk_tools/bin/rk33/rk3399_miniloader_v1.06.bin
 [OUTPUT]
 PATH=rk3399_loader_v1.08.106.bin

Log:

DDR Version 1.08 20170320
In
soft reset
SRX
Channel 0: DDR3, 933MHz
Bus Width=32 Col=10 Bank=8 Row=15/15 CS=2 Die Bus-Width=16 Size=2048MB
Channel 1: DDR3, 933MHz
Bus Width=32 Col=10 Bank=8 Row=15/15 CS=2 Die Bus-Width=16 Size=2048MB
256B stride