RV1126&RV1109 LPDDR3 ddrbin_tool降频

最新推荐文章于 2025-02-15 20:43:01 发布

rockemd

最新推荐文章于 2025-02-15 20:43:01 发布

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分类专栏： RV1109

本文链接：https://blog.youkuaiyun.com/pebi2005/article/details/108628379

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本文详细介绍RV1126平台DDR3内存频率从328MHz逐步提升至924MHz的过程，重点介绍了如何通过修改配置文件将DDR3运行频率设置为784MHz，包括使用ddrbin_tool工具进行参数调整的具体步骤。

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1、默认SDK开机串口打印：

DDR Version V1.03 20200804
LPDDR3, 328MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS=1 Die BW=16 Size=1024MB
change to: 328MHz
change to: 528MHz
change to: 784MHz
change to: 924MHz(final freq)
out
U-Boot SPL board init

2、SDK提供了rv1126_ddr_784MHz_v1.03.bin

diff --git a/rkbin/RKBOOT/RV1126MINIALL.ini b/rkbin/RKBOOT/RV1126MINIALL.ini
index f7233fd..9ebb1db 100755
--- a/rkbin/RKBOOT/RV1126MINIALL.ini
+++ b/rkbin/RKBOOT/RV1126MINIALL.ini
@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=1
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rv11/rv1126_ddr_924MHz_v1.03.bin
+Path1=bin/rv11/rv1126_ddr_784MHz_v1.03.bin
 Sleep=1
 [CODE472_OPTION]
 NUM=1
@@ -14,7 +14,7 @@ Path1=bin/rv11/rv1126_usbplug_v1.11.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rv11/rv1126_ddr_924MHz_v1.03.bin
+FlashData=bin/rv11/rv1126_ddr_784MHz_v1.03.bin
 FlashBoot=bin/rv11/rv1126_spl_v1.03.bin
 [OUTPUT]
 PATH=rv1126_spl_loader_v1.03.103.bin

3、使用ddrbin_tool修改lp3_freq=784

diff --git a/rkbin/tools/ddrbin_param.txt b/rkbin/tools/ddrbin_param.txt
index 2f7191d..46de707 100644
--- a/rkbin/tools/ddrbin_param.txt
+++ b/rkbin/tools/ddrbin_param.txt
@@ -2,7 +2,7 @@ start tag=0x12345678
 ddr2_freq=
 lp2_freq=
 ddr3_freq=
-lp3_freq=
+lp3_freq=784
 ddr4_freq=
 lp4_freq=
 
@@ -36,11 +36,11 @@ lp2_f3_freq_mhz=
 lp2_f4_freq_mhz=
 lp2_f5_freq_mhz=
 
-lp3_f1_freq_mhz=
-lp3_f2_freq_mhz=
-lp3_f3_freq_mhz=
-lp3_f4_freq_mhz=
-lp3_f5_freq_mhz=
+lp3_f1_freq_mhz=396
+lp3_f2_freq_mhz=528
+lp3_f3_freq_mhz=664
+lp3_f4_freq_mhz=784
+lp3_f5_freq_mhz=924
 
 lp4_f1_freq_mhz=
 lp4_f2_freq_mhz=
============================================================
rockemd@rockemd:tools$ ./ddrbin_tool ddrbin_param.txt ../bin/rv11/rv1126_ddr_924MHz_v1.03.bin 
version v1.03 20200720
argument 1 : Input param filename(.txt)
argument 2 : Input ddr bin filename(.bin)

new bin config:
lp3_freq: 784
lp3_f1_freq_mhz: 396
lp3_f2_freq_mhz: 528
lp3_f3_freq_mhz: 664
lp3_f4_freq_mhz: 784
lp3_f5_freq_mhz: 924
modify end

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