错误 #3644
evmt4板卡出现启动时DDR初始化时失败，需要硬件协助定位。
状态:
新建
优先级:
普通
指派给:
-
开始日期:
2025-07-01
计划完成日期:
% 完成:
0%
预期时间:
描述
U-Boot 2018.11-rc2 (Jun 04 2025 - 15:24:39 +0800)
Clock Configuration:
CPU A72: 1800 MHz
APE: 1400 MHz
Bus(PLL2): 1000 MHz
SDIO/GMAC: 1000 MHz
Model: Smartlogic ucp4008 EVB
DRAM: UCP4008 ddr4 reset
ddr4_init start
ddr4_init 3200 MT/Mbps start---
Info: Polling UctWriteProtShadow, bit0 ...
Right sequence:
1: Init device
2: Read enable
3: Fine write leveling
4: Read dq deskew
5: MPR read delay center
6: Write leveling coarse
7: Write delay center
8: Read delay center
9: Max read latency
PMU Major Msg: FATAL ERROR !
Info: Mail Box = ff
Error: Firmware training failed.
freq == 0x96
可能的原因： 虚焊