bsp-howto: Clarify clock driver initialization

Close #3834.
2025-07-19 17:38:24 +08:00 · 2019-12-19 09:11:57 +01:00 · 2019-12-19 09:11:57 +01:00 · d585fcb9a8
commit d585fcb9a8
parent c9f5e20d31
1 changed files with 5 additions and 0 deletions
--- a/bsp-howto/clock.rst
+++ b/bsp-howto/clock.rst
@ -65,6 +65,11 @@ Clock Tick Only
 Initialization
 ==============

+The clock driver is initialized by a dedicated system initialization handler if
+requested by the application configuration option
+``CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER``.  The clock driver does not use the
+legacy IO driver framework.
+
 Timecounter Variant
 ~~~~~~~~~~~~~~~~~~~