Hi,
We are trying to run HIFI4 dsp on IMX8MP, but encounter a question shown as below:
1>Linux version: L5.10.72-2.2.2
2>We do as 《i.MX DSP User's Guide》chapter 4.3, but uart4 can't output the log message.
Only in kernel, we can output the log message from uart4, the harware is ok.
Can you help to check and fix it?
Thanks very much.
----log screen shot.
Hi @jimmyli,
I hope you are doing well.
UART4 is used for Cortex-M7 core.
Disable UART4 in Linux OS & M7 core as DSP firmware runs on HiFi core.
In ATF, UART4 should be allocated to hifi4 core using RDC.