default or selected kernelversion does not have config value CONFIG_ECONET_EN751221_TIMER.
Result is shown for kernelversion 6.16-rc7
EcoNet EN751221 High Precision Timer
modulename: timer-econet-en751221.ko
configname: CONFIG_ECONET_EN751221_TIMER
Linux Kernel Configuration
└─>Device Drivers
└─>Clock Source drivers
└─>EcoNet EN751221 High Precision Timer
In linux kernel since version 6.1.145 (release Date: 2025-07-14)
Support for CPU timer found on EcoNet MIPS based SoCs.