arm_timer.h File Reference

ARM generic system timer driver. More...

#include "icu/icu.h"
#include <stdbool.h>
#include <stdint.h>

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Functions
bool	setup_arm64_sys_timer (const void *fdt, int node_offset, uint64_t milliseconds, handler_data_t handler)
	Configure the system timer's tick period and interrupt handler.

Detailed Description

ARM generic system timer driver.

Declares the platform-specific implementation backing the kernel's timer interface for the ARM generic timer (CNTP).

Author

Abhin Parekadan Jose

Date

2026-06-28

Function Documentation

setup_arm64_sys_timer()

bool setup_arm64_sys_timer	(	const void *	fdt,
		int	node_offset,
		uint64_t	milliseconds,
		handler_data_t	handler
	)

Configure the system timer's tick period and interrupt handler.

Parameters

fdt	Pointer to the Flattened Device Tree (FDT) blob, which may be used to discover timer properties and configuration.
node_offset	Offset of the timer node in the FDT.
milliseconds	Desired tick period in milliseconds.
handler	Handler function and private data to invoke when the timer interrupt fires.

Returns

true if the timer was configured successfully, false otherwise.