2440lib.h

2440 CPU 的boot loader 引导代码

//===================================================================
// File Name : 2440lib.h
// Function  : S3C2440 
// Program   : Shin, On Pil (SOP)
// Date      : February 26, 2002
// Version   : 0.0
// History
//  0.0 :Feb.20.2002:SOP     : Programming start
//  0.01:Mar.29.2002:purnnamu: For POWEROFF_wake_up, the START... label is added
//===================================================================

#ifndef __2440LIB_H__
#define __2440LIB_H__

#include "def.h"

#ifdef __cplusplus
extern "C" {
#endif

#define DebugOut Uart_Printf

#define min(x1,x2) (((x1)<(x2))? (x1):(x2))
#define max(x1,x2) (((x1)>(x2))? (x1):(x2))

#define ONESEC0 (62500)			//16us resolution, max 1.04 sec
#define ONESEC1 (31250)			//32us resolution, max 2.09 sec
#define ONESEC2 (15625)			//64us resolution, max 4.19 sec
#define ONESEC3 (7812)			//128us resolution, max 8.38 sec
#define ONESEC4 (PCLK/128/(0xff+1))	//@60Mhz, 128*4us resolution, max 32.53 sec

#define EnterPWDN(clkcon) ((void (*)(int))0x20)(clkcon)
	void StartPointAfterPowerOffWakeUp(void);	//purnnamu:Mar.29.2002


// 2440lib.c
	void Delay(UINT32 time);		//Watchdog Timer is used.

	void Port_Init(void);
	void Uart_Select(int ch);
	void Uart_TxEmpty(void);
	void Uart_Init(int mclk, int baud);
	char Uart_Getch(void);
	int Uart_GetKey(void);
	int Uart_GetIntNum(void);
	void Uart_SendByte(int data);
	void Uart_Printf(char *fmt, ...);
	void Uart_SendString(char *pt);

	void Timer_Start(int divider);	//Watchdog Timer is used.
	int Timer_Stop(void);		//Watchdog Timer is used.

	void Led_Display(int data);

	void ChangeMPllValue(int m, int p, int s);
	void ChangeClockDivider(int hdivn, int pdivn);
	void ChangeUPllValue(int m, int p, int s);

#ifdef __cplusplus
}
#endif
#endif							//__2440LIB_H__