tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * linux/include/asm-arm/arch-ixp4xx/timex.h
3 *
4 */
5
6#include <asm/hardware.h>
7
8/*
9 * We use IXP425 General purpose timer for our timer needs, it runs at
10 * 66.66... MHz. We do a convulted calculation of CLOCK_TICK_RATE b/c the
11 * timer register ignores the bottom 2 bits of the LATCH value.
12 */
13#define FREQ 66666666
14#define CLOCK_TICK_RATE (((FREQ / HZ & ~IXP4XX_OST_RELOAD_MASK) + 1) * HZ)
15