?? 2440lib.c
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//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.
--*/
//===================================================================
// File Name : 2440lib.c
// Function : S3C2440 PLL,Uart, LED, Port Init
// Program : Shin, On Pil (SOP)
// Date : March 20, 2002
// Version : 1.0
// History
// 0.0 : Programming start (February 20,2002) -> SOP
// 1.0 : Modified for SMDK2440 PPC2003 BSP ( November 29, 2003 ) -> HMSEO
//===================================================================
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
void MMU_SetAsyncBusMode(void);
#define BAUD_RATE 115200
#define WRITE_UART WrUTXH0
#define UART_STATUS rUTRSTAT0
//***************************[ PORTS ]****************************************************
void Port_Init(void)
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
//32bit data bus configuration
//*** PORT A GROUP
//Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
//Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
//Binary : 1 1 1 , 1 1 1 1 , 1 1 1 1
//Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
//Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
//Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 1
rGPACON = 0x7fffff;
//**** PORT B GROUP
//Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
//Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
//Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
//Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
rGPBCON = 0x044555;
rGPBUP = 0x7ff; // The pull up function is disabled GPB[10:0]
//*** PORT C GROUP
//Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
//Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPCCON = 0xaaaaaaaa;
rGPCUP = 0xffff; // The pull up function is disabled GPC[15:0]
//*** PORT D GROUP
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
//rGPDCON = 0xaaa9aaaa; // GPD8: USB_CHG_DIS: Output
//rGPDUP = 0xffff; // The pull up function is disabled GPD[15:0]
//rGPDDAT &= ~(0x1 << 8); // Set USB_CHG_DIS Low
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8
//Signal : USB_PULLUP NC NC NC NC nFWP SELI USB_CHG_DIS
//CON : 00 00 00 00 00 01 01 01
//DAT : 0 0 0 0 0 1 0(100ma)0 (low)
//UP : 1 0 0 0 0 1 1 1
//Ports : GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : NC EL_EN KEEPACT IR_SD PWREN2 NC TXON NC
//CON : 00 01 01 01 01 00 01 00
//DAT : 0 0(on) 1(high) 1(on) 0(low) 0 0(low) 0
//UP : 0 1 1 1 1 0 1 0
rGPDCON = 0x00151544;
rGPDDAT = 0x0430;
rGPDUP = 0x877A;
//*** PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO
//Binary : 10 10 , 10 10 , 00 10 , 10 10 , 10 10 , 10 10 ,
//-------------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDI CDCLK I2SSCLK I2SLRCK
//Binary : 10 10 , 10 10
//rGPECON = 0xaaaaaaaa;
//rGPEUP = 0xffff; // The pull up function is disabled GPE[15:0]
rGPECON = 0xaa2aaaaa;
rGPEUP = 0xf7ff; // GPE11 is NC
//*** PORT F GROUP
//Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
//Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
//Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
//Binary : 01 01 , 01 01 , 10 10 , 10 10
rGPFCON = 0x55aa;
rGPFUP = 0xff; // The pull up function is disabled GPF[7:0]
//*** PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON NC SDWP WHEEL_SW WHEEL_A WHEEL_B ONE_WIRE
//Setting: nYPON YMON nXPON XMON IN EINT18 EINT17 ENT16 EINT15 OUTPUT
//Binary : 11 11 , 11 11 , 00 01 , 10 10 , 10 01
//UP : 1 1 1 1 0 1 1 1 1 1
//-----------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : NC LCD_PWREN NC nSS_SPI JACK_CLK JACK_DATA
//Setting: IN LCD_PWRDN IN nSS0 EINT9 EINT8
//Binary : 00 11 , 00 11 , 10 10
//UP : 0 1 0 1 1 1
// Behavior changed from board rev A to rev D. Don't power LCD down.
rGPGDAT &=(~(1<<4));
rGPGCON &=(~(3<<8));
rGPGCON |=(1<<8);
rGPGUP |=1<<4;
//*** PORT H GROUP
//Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
//Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
//Binary : 01 , 01 10 , 11 11 , 10 10 , 10 10 , 10 10
rGPHCON = 0x16faaa;
rGPHUP = 0x7ff; // The pull up function is disabled GPH[10:0]
//External interrupt will be falling edge triggered.
rEXTINT0 = 0x22222222; // EINT[7:0]
rEXTINT1 = 0x22222222; // EINT[15:8]
rEXTINT2 = 0x22222222; // EINT[23:16]
}
//***************************[ UART ]******************************
void Uart_Init(void)
{
int i;
rUFCON1 = 0x0; // FIFO disable
rUMCON1 = 0x0; // AFC disable
rULCON1 = 0x3; // Normal,No parity,1 stop,8 bits
rUCON1 = 0x245;
rUBRDIV1=( (int)(PCLK/16./BAUD_RATE) -1 );
for(i=0;i<100;i++);
}
//=====================================================================
void Uart_SendByte(int data)
{
if(data=='\n')
{
while(!(UART_STATUS & 0x2));
Delay(10); //because the slow response of hyper_terminal
WRITE_UART('\r');
}
while(!(UART_STATUS & 0x2)); //Wait until THR is empty.
Delay(10);
WRITE_UART(data);
}
//====================================================================
void Uart_SendString(char *pt)
{
while(*pt)
Uart_SendByte(*pt++);
}
//====================================================================
void Uart_SendDWORD(DWORD d, BOOL cr)
{
Uart_SendString("0x");
Uart_SendString(hex2char((d & 0xf0000000) >> 28));
Uart_SendString(hex2char((d & 0x0f000000) >> 24));
Uart_SendString(hex2char((d & 0x00f00000) >> 20));
Uart_SendString(hex2char((d & 0x000f0000) >> 16));
Uart_SendString(hex2char((d & 0x0000f000) >> 12));
Uart_SendString(hex2char((d & 0x00000f00) >> 8));
Uart_SendString(hex2char((d & 0x000000f0) >> 4));
Uart_SendString(hex2char((d & 0x0000000f) >> 0));
if (cr)
Uart_SendString("\n");
}
//====================================================================
char *hex2char(unsigned int val)
{
static char str[2];
str[1]='\0';
if(val<=9)
str[0]='0'+val;
else
str[0]=('a'+val-10);
return str;
}
void ChangeClockDivider(int hdivn,int pdivn)
{
// hdivn,pdivn FCLK:HCLK:PCLK
// 0,0 1:1:1
// 0,1 1:1:2
// 1,0 1:2:2
// 1,1 1:2:4
rCLKDIVN = (hdivn<<1) | pdivn;
if(hdivn)
MMU_SetAsyncBusMode();
// else
// MMU_SetFastBusMode();
}
void ChangeMPllValue(int mdiv,int pdiv,int sdiv)
{
rMPLLCON = (mdiv<<12) | (pdiv<<4) | sdiv;
}
void Delay(int time)
{
// time=0: adjust the Delay function by WatchDog timer.
// time>0: the number of loop time
// resolution of time is 100us.
int i;
for(i=0;i<1000;i++);
}
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