Hi,
Can somebody please explain why the following FIQ_DEBUGGER features are enabled by default in hikey960_defconfig? And where is it used?
CONFIG_FIQ_DEBUGGER_NO_SLEEP=y
CONFIG_FIQ_DEBUGGER_CONSOLE=y
CONFIG_FIQ_DEBUGGER_CONSOLE_DEFAULT_ENABLE=y
CONFIG_FIQ_DEBUGGER_UART_OVERLAY=y
CONFIG_HISI_FIQ_DEBUGGER=y
If we disable ‘CONFIG_FIQ_DEBUGGER_CONSOLE’, serial console Rx is not working.
Our understanding is serial console uses polling mechanism, but in hikey the FIQ is used for serial console?
Thanks.