您好:
am3359 icev2 开发板,uboot 引导内核,内核正常运行,但是在显示Starting kernel后控制台无信息打印,内核的调试串口如何修改?
方法:
U-Boot# set ipaddr 192.168.1.117; set serverip 192.168.1.116
U-Boot# tftp 0x83000000 am335x-evm.dtb
U-Boot# tftp 0x82000000 uImage
U-Boot# bootm 0x82000000 - 0x83000000
bootm 0x82000000 - 0x83000000
=> bootm 0x82000000 – 0x83000000
## Booting kernel from Legacy Image at 82000000 …
Image Name: Linux-4.4.19-rt25-gf572d285f0
Created: 2016-12-20 13:13:59 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3414008 Bytes = 3.3 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum … OK
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Loading Kernel Image … OK
Loading Device Tree to 8ef23000, end 8ef2f727 … OK
Starting kernel …
之后无信息,显示,但是lcd显示器,有数据显示,说明内核已经运行,
请问,该如何编译内核,或修改,使其能够串口输入日志信息???
Eggsy Pang:
这个问题请查看我曾经发过的帖子,link如下:
http://www.deyisupport.com/question_answer/dsp_arm/sitara_arm/f/25/t/121799.aspx