?? stop.c
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/*************************************************
NAME: stop.c
DESC: STOP mode test
HISTORY:
03.21.2002:purnnamu: first release for S3C2410X
05.10.2002:SOP RTC Name Change (DAY,DATE)
*************************************************/
#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"
#include "lcdlib.h"
#include "stop.h"
#define TESTYEAR (0x00)
#define TESTMONTH (0x12)
#define TESTDATE (0x31)
#define TESTDAY (0x06) // SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define TESTHOUR (0x23)
#define TESTMIN (0x59)
#define TESTSEC (0x59)
#define TESTYEAR2 (0x01)
#define TESTMONTH2 (0x01)
#define TESTDATE2 (0x01)
#define TESTDAY2 (0x07) // SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define TESTHOUR2 (0x00)
#define TESTMIN2 (0x00)
#define TESTSEC2 (0x00)
void SelectEintType(void);
static void __irq Eint0Int(void)
{
ClearPending(BIT_EINT0);
Uart_Printf("[WU]EINT0 interrupt is occurred for STOP/POWER_OFF mode wake-up.\n");
}
static void __irq Eint8_23Int(void)
{
rEINTPEND=(1<<11); //EINT11 sub-pending bit.
ClearPending(BIT_EINT8_23);
Uart_Printf("[WU]EINT8_23 interrupt is occurred for STOP/POWER_OFF mode wake-up.\n");
}
static void __irq Eint8_23Int_100Hz(void)
{
rEINTPEND=(1<<11); //EINT11 sub-pending bit.
ClearPending(BIT_EINT8_23);
Uart_Printf("wui\n");
}
static void __irq AlarmInt(void)
{
ClearPending(BIT_RTC);
Uart_Printf("[WU]ALARM interrupt is occurred for STOP/POWER_OFF mode wake-up.\n");
}
#define CHECK_SDRAM_SELFREFRESH (1)
#define EXTERNAL_BUS_HOLDER (1)
//The SMDK2410X board has externa databus buffer with bus hold function.
#define CHOOSE_EINT_TYPE (1)
#define GPIO_RESTORE (0)
void Test_InitSDRAM(void)
//Initialize SDRAM for SDRAM self-refresh test.
{
int i;
Uart_Printf("[SDRAM Initialization]\n");
Uart_Printf("Fill SDRAM for self-refresh test.\n");
for(i=_NONCACHE_STARTADDRESS;i<(_NONCACHE_STARTADDRESS+0x400000);i+=4)
*((U32 *)i)=i^0x55555555;
Uart_Printf("Filling SDRAM is completed.\n");
*((volatile U32 *)0x33e00000)=0x0; //for Initialize the counter in Check_PowerOffWakeUp_100Hz().
}
void SelectEintType(void)
{
int extintMode;
Uart_Printf("1.L-level 2.H-level 3.F-edge 4.R-edge 5.B-edge\n");
Uart_Printf("Select the EINT0 trigger type:");
extintMode=Uart_Getch();
rGPFCON=rGPFCON & ~(3<<0)|(2<<0); //PF0=EINT0
switch(extintMode)
{
case '1':
rEXTINT0=rEXTINT0&~(7<<0)|(0x0<<0); //EINT0=low level triggered
Uart_Printf("L-level\n");
break;
case '2':
rEXTINT0=rEXTINT0&~(7<<0)|(0x1<<0); //EINT0=high level triggered
Uart_Printf("H-level\n");
break;
case '3':
rEXTINT0=rEXTINT0&~(7<<0)|(0x2<<0); //EINT0=falling edge triggered
Uart_Printf("F-edge\n");
break;
case '4':
rEXTINT0=rEXTINT0&~(7<<0)|(0x4<<0); //EINT0=rising edge triggered
Uart_Printf("R-edge\n");
break;
case '5':
rEXTINT0=rEXTINT0&~(7<<0)|(0x6<<0); //EINT0=both edge triggered
Uart_Printf("B-edge\n");
break;
default:
break;
}
}
void ConfigStopGPIO(void)
{
// Check point
// 1) NC pin: input pull-up on
// 2) If input is driver externally: input pull-up off
// 3) If a connected component draws some current: output low.
// 4) If a connected component draws no current: output high.
//chip # = 5
//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,
//POFF : 1 0 1, 1 0 0 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
//POFF : 0 0 0 0, 0 0 0 0, 0 0 0 0
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 OUT OUT OUT OUT INPUT INPUT
//Binary : 00, 01 00, 01 00, 01 01, 01 01, 00 00
//PU_OFF : 0 1 0, 1 1(ext) 1(*) 1, 1 1 1(ext) 1(ext)
//*:nDIS_OFF:4.7K external pull-down resistor
rGPBDAT= 0x0|(1<<9)|(1<<7)|(0<<5)|(1<<4)|(1<<3)|(1<<2);
rGPBCON = 0x044550;
rGPBUP = 0x2ff; //0x2fd->2ff, 3uA is reduced. Why?
//*** 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
//Setting: IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN
//Binary : 00 00, 00 00, 00 00, 00 00, 00 00, 00 00, 00 00, 00 00
//PU_OFF : 0 0 0 0, 0 0 0 0, 0 0 0 0, 0 0 0 0
rGPCDAT = 0x0;
rGPCCON = 0x00000000;
rGPCUP = 0x0000;
//*** 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
//Setting: IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN
//Binary : 00 00, 00 00, 00 00, 00 00, 00 00, 00 00, 00 00, 00 00
//PU_OFF : 0 0 0 0, 0 0 0 0, 0 0 0 0, 0 0 0 0
rGPDDAT= 0x0;
rGPDCON = 0x0;
rGPDUP = 0x0;
//*** PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK0 SPIMOSI0 SPIMISO0 SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO
//Setting: IN IN IN IN IN IN IN IN IN IN IN OUT
//Binary : 00 00, 00 00, 00 00, 00 00, 00 00, 00 01,
//PU_OFF : 1-ext 1-ext 0 0, 0 0 0 0, 0 0 0 1,
//------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDI CDCLK I2SSCLK I2SLRCK
//Setting: IN OUT OUT OUT
//Binary : 00 01, 01 01
//PU_OFF : 1-ext 1 1 1
rGPEDAT = 0x0|(1<<4)|(1<<2)|(1<<1)|(1<<0);
rGPECON = 0x00000115;
rGPEUP = 0xc01f;
//*** 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 IN IN IN EINT0
//Binary : 01 01, 01 01, 00 00, 00 10
//PU_OFF : 1 1 1 1, 1-ext 1-ext 1-ext 1-ext
rGPFDAT = 0x0 |(0xf<<4);
rGPFCON = 0x5502;
rGPFUP = 0xff;
//*** PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
//Setting: OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT
//Binary : 01 01, 01 01, 01-dbg 01, 01 01, 01 01
//PU_OFF : 1 1 1 1, 1-ext 1 1 1, 1 1
//---------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
//Setting: IN IN EINT11 IN IN IN
//Binary : 00 00, 10 00, 00 00
//PU_OFF : 1-ext 1, 1-ext 0 1 1
rGPGDAT= 0x0 |(1<<11)/*debug*/|(1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<10)|(1<<9)|(1<<8)|(1<<7)|(1<<6) ;
rGPGCON = 0x55555080; //GPG11=OUT //for debug
rGPGUP = 0xfffb;
//*** 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
//Setting: IN IN IN IN IN IN OUT RXD0 TXD0 OUT IN
//Binary : 00, 00 00, 00 00, 00 01, 10 10, 01 00
//PU_OFF : 0 0 0, 1-ext 1-ext 1-ext 1, 1-ext 1 1 1-ext
#if 1
rGPHDAT = 0x0|(1<<6)|(1<<1)|(1<<4);
rGPHCON = 0x0001a4; //0x0011a4->0x0001a4 reduces 12uA why -> MAX3232C may sink 12uA.
#else
//rGPHDAT = 0x0|(1<<6)|(1<<1)|(1<<4);
//rGPHCON = 0x0011a4;
rGPHDAT = 0x0|(0<<6)|(1<<1)|(1<<4); //(1<<6)->(0<<6) reduces 12uA (MAX3232C may sink 12uA.)
rGPHCON = 0x0011a4;
#endif
rGPHUP = 0x0ff; // 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]
}
void SetAlarmWakeUp(void)
{
rRTCCON = 0x1; // R/W enable, 1/32768, Normal(merge), No reset
rBCDYEAR = TESTYEAR;
rBCDMON = TESTMONTH;
rBCDDAY = TESTDAY; // SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
rBCDDATE = TESTDATE;
rBCDHOUR = TESTHOUR;
rBCDMIN = TESTMIN;
rBCDSEC = TESTSEC;
rALMYEAR=TESTYEAR2 ;
rALMMON =TESTMONTH2;
rALMDATE=TESTDATE2 ;
rALMHOUR=TESTHOUR2 ;
rALMMIN =TESTMIN2 ;
rALMSEC =TESTSEC2+9;
rRTCALM=0x7f;
rRTCCON=0x0; // R/W disable, 1/32768, Normal(merge), No reset
}
// S3C2400 - S3C2410
// GPA11 -> GPG3(EINT11)
// GPE3 <- GPG11(EINT19)
void Test_StopMode(void)
{
int i;
U32 portStatus[33];
int error=0;
int mode;
Uart_Printf("[STOP Mode Test]\n");
Uart_Printf("BATT_FLT pin should be tested.\n");
Uart_Printf("S3C2410 will wake up by RTC alarm(10 sec) or EINT0 .\n");
//for test
rMISCCR=rMISCCR&~(0x7<<4)&~(0x7<<8)|(0<<4)|(2<<8); //CLKOUT0=MPLL,CLKOUT1=FCLK
#if GPIO_RESTORE
// Save the port configurations
for(i=0;i<33;i++)
portStatus[i]=*( (volatile U32 *)0x56000000 + i);
#endif
ConfigStopGPIO(); //GPG11=OUT
#if CHOOSE_EINT_TYPE
SelectEintType();
#else
rGPFCON=rGPFCON & ~(3<<0)|(2<<0); //GPF0=EINT0
rEXTINT0=rEXTINT0&~(7<<0)|(0x2<<0); //EINT0=falling edge triggered
#endif
rGPGCON=rGPGCON & ~(3<<6)|(2<<6); //GPG3=EINT11
rEXTINT1=rEXTINT1&~(7<<12)|(0x2<<12); //EINT11=falling edge triggered
Uart_Printf("\nNow, I am entering STOP mode.\n");
Uart_TxEmpty(0); //Wait until UART0 Tx buffer empty.
pISR_EINT0=(U32)Eint0Int;
pISR_EINT8_23=(U32)Eint8_23Int;
pISR_RTC=(U32)AlarmInt;
rEINTPEND = (1<<11); // clear EINT11 pending bit in rEINTPEND
rSRCPND = BIT_EINT0|BIT_RTC|BIT_EINT8_23;
rINTPND = BIT_EINT0|BIT_RTC|BIT_EINT8_23;
rINTMSK = BIT_ALLMSK;
//rINTMSK = ~BIT_EINT0;
// NOTE: Any interrupt can't be used in STOP mode
// because SDRAM is in self-refresh mode and ISR code will access SDRAM.
#if 1
SetAlarmWakeUp();
#endif
rRTCCON=0x0; // R/W disable, 1/32768, Normal(merge), No reset
rADCCON|=(1<<2);
rMISCCR|=(1<<12); //USB port0 = suspend
rMISCCR|=(1<<13); //USB port1 = suspend
rMISCCR|=(1<<2); //Previous state at STOP mode.
//For SDRAM self-refresh mode, rMISCCR[2] should be 1.
#if EXTERNAL_BUS_HOLDER
//D[31:0] pull-up off. The data bus will not be float by the external bus holder.
//If the pull-up resitsers are turned on,
//there will be the leakage current through the pull-up resister
rMISCCR=rMISCCR|(3<<0);
#else
//D[31:0] pull-up on. The data bus will not be float by pull-up resister.
rMISCCR=rMISCCR&~(3<<0);
#endif
Lcd_EnvidOnOff(0); //Before entering STOP mode, LCD must be off
Delay(1);
Led_Display(0x5);
//rCLKSLOW=0x34; //csh (???)debug
//=================================================================
// VERY IMPORTANT NOTE
// To enter STOP/SLIDLE mode, MMU TLB-fill operation should be prohibited
// because MTT table is in SDRAM and SDRAM is in the self-refresh mode.
// So, we will fill TLB before entering SDRAM self-refresh
// instead of disabling MMU.
rREFRESH;//To fill TLB for the special register used in EnterPWDN
rCLKCON;
rMISCCR;
rGPFDAT;
//=================================================================
rGPGDAT=rGPGDAT&~(1<<11)|(0<<11); //GPG11(EINT19)=L
EnterPWDN(0x7fff1); //STOP mode
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