dma_timer.c File Reference

#include <linux/clocksource.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfpit.h>
#include <asm/mcfsim.h>

Go to the source code of this file.

Macros
#define	DMA_TIMER_0   (0x00)
#define	DMA_TIMER_1   (0x40)
#define	DMA_TIMER_2   (0x80)
#define	DMA_TIMER_3   (0xc0)
#define	DTMR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x400)
#define	DTXMR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x402)
#define	DTER0   (MCF_IPSBAR + DMA_TIMER_0 + 0x403)
#define	DTRR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x404)
#define	DTCR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x408)
#define	DTCN0   (MCF_IPSBAR + DMA_TIMER_0 + 0x40c)
#define	DMA_FREQ   ((MCF_CLK / 2) / 16)
#define	DMA_DTMR_RESTART   (1 << 3)
#define	DMA_DTMR_CLK_DIV_1   (1 << 1)
#define	DMA_DTMR_CLK_DIV_16   (2 << 1)
#define	DMA_DTMR_ENABLE   (1 << 0)
#define	CYC2NS_SCALE_FACTOR   10 /* 2^10, carefully chosen */
#define	CYC2NS_SCALE   ((1000000 << CYC2NS_SCALE_FACTOR) / (DMA_FREQ / 1000))

Functions
	arch_initcall (init_cf_dt_clocksource)
unsigned long long	sched_clock (void)

Macro Definition Documentation

#define CYC2NS_SCALE   ((1000000 << CYC2NS_SCALE_FACTOR) / (DMA_FREQ / 1000))

Definition at line 68 of file dma_timer.c.

#define CYC2NS_SCALE_FACTOR   10 /* 2^10, carefully chosen */

Definition at line 67 of file dma_timer.c.

#define DMA_DTMR_CLK_DIV_1   (1 << 1)

Definition at line 33 of file dma_timer.c.

#define DMA_DTMR_CLK_DIV_16   (2 << 1)

Definition at line 34 of file dma_timer.c.

#define DMA_DTMR_ENABLE   (1 << 0)

Definition at line 35 of file dma_timer.c.

#define DMA_DTMR_RESTART   (1 << 3)

Definition at line 32 of file dma_timer.c.

#define DMA_FREQ   ((MCF_CLK / 2) / 16)

Definition at line 29 of file dma_timer.c.

#define DMA_TIMER_0   (0x00)

Definition at line 17 of file dma_timer.c.

#define DMA_TIMER_1   (0x40)

Definition at line 18 of file dma_timer.c.

#define DMA_TIMER_2   (0x80)

Definition at line 19 of file dma_timer.c.

#define DMA_TIMER_3   (0xc0)

Definition at line 20 of file dma_timer.c.

#define DTCN0   (MCF_IPSBAR + DMA_TIMER_0 + 0x40c)

Definition at line 27 of file dma_timer.c.

#define DTCR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x408)

Definition at line 26 of file dma_timer.c.

#define DTER0   (MCF_IPSBAR + DMA_TIMER_0 + 0x403)

Definition at line 24 of file dma_timer.c.

#define DTMR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x400)

Definition at line 22 of file dma_timer.c.

#define DTRR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x404)

Definition at line 25 of file dma_timer.c.

#define DTXMR0   (MCF_IPSBAR + DMA_TIMER_0 + 0x402)

Definition at line 23 of file dma_timer.c.

Function Documentation

arch_initcall

(

init_cf_dt_clocksource

)

unsigned long long sched_clock

(

void

)

Definition at line 76 of file dma_timer.c.