strata32.c
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- //====================================================================
- // File Name : strata32.c
- // Function : S3C2440 Intel Strata NOR Flash
- // Program : Lee, Sang Jo (LSJ)
- // Date : June 14, 2002
- // Version : 0.0
- // History
- // 0.0 : Programming start (June 14, 2002) -> LSJ
- // Arrangement source code(8/01/2002)-> SOP
- //====================================================================
- #include <stdlib.h>
- #include <string.h>
- #include "def.h"
- #include "option.h"
- #include "2440addr.h"
- #include "2440lib.h"
- #include "2440slib.h"
- #include "strata32.h"
- static void InputAddresses(void);
- static int Strata_ProgFlash(U32 realAddr,U32 data);
- static void Strata_EraseSector(int targetAddr);
- static int Strata_CheckID(int targetAddr);
- static int Strata_CheckDevice(int targetAddr);
- static int Strata_CheckBlockLock(int targetAddr);
- static int Strata_BlankCheck(int targetAddr,int targetSize);
- static int _WAIT(void);
- extern U32 downloadAddress;
- extern U32 downloadProgramSize;
- static U32 srcAddress;
- static U32 targetOffset;
- static U32 targetAddress;
- static U32 targetSize;
- // Because S3C2440 is connected to Intel StrataFlash 28F128J3A,
- // the addr parameter has to be a WORD address, so called in Intel specification.
- // by chc
- #define _WR(addr,data) *((volatile U32 *)(addr))=(U32)data
- #define _RD(addr) ( *((volatile U32 *)(addr)) )
- // _RESET() : Read Array
- #define _RESET() _WR(targetAddress,0x00ff00ff)
- extern U32 downloadAddress;
- extern U32 downloadProgramSize;
- static int error_erase=0; // Read Status Register, SR.5
- static int error_program=0; // Read Status Register, SR.4
- //==========================================================================================
- int Strata_CheckID(int targetAddr)
- {
- _RESET();
- _WR(targetAddr, 0x00900090);
- return _RD(targetAddr); // Read Identifier Code, including lower, higher 16-bit, 8MB, Intel Strate Flash ROM
- // targetAddress must be the beginning location of a Block Address
- }
- //==========================================================================================
- int Strata_CheckDevice(int targetAddr)
- {
- _RESET();
- _WR(targetAddr, 0x00900090);
- return _RD(targetAddr+0x4); // Read Device Code, including lower, higher 16-bit, 8MB, Intel Strate Flash ROM
- // targetAddress must be the beginning location of a Block Address
- }
- //==========================================================================================
- int Strata_CheckBlockLock(int targetAddr)
- {
- _RESET();
- _WR(targetAddr, 0x00900090);
- return _RD(targetAddr+0x8); // Read Block Lock configuration,
- // targetAddress must be the beginning location of a Block Address
- }
- void Strata_Unlock(int targetAddr)
- {
- _RESET();
- _WR(targetAddr, 0x00600060);
- _WR(targetAddr, 0x00D000D0);
- }
- void Strata_SetBlockLock(int targetAddr)
- {
- _RESET();
- _WR(targetAddr, 0x00600060);
- _WR(targetAddr, 0x00010001);
- }
- //==========================================================================================
- void Strata_EraseSector(int targetAddress)
- {
- unsigned long ReadStatus;
- unsigned long bSR5; // Erase and Clear Lock-bits Status, lower 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR5_2; // Erase and Clear Lock-bits Status, higher 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR7; // Write State Machine Status, lower 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR7_2; // Write State Machine Status, higher 16bit, 8MB Intel Strate Flash ROM
- //_RESET();
- // _WR(targetAddress, 0x00200020);
- // _WR(targetAddress, 0x00d000d0);
- _WR(targetAddress, 0x00200020); // Block Erase, First Bus Cycle, targetAddress is the address withint the block
- _WR(targetAddress, 0x00d000d0); // Block Erase, Second Bus Cycle, targetAddress is the address withint the block
-
- //_RESET();
- _WR(targetAddress, 0x00700070); // Read Status Register, First Bus Cycle, targetAddress is any valid address within the device
- ReadStatus=_RD(targetAddress); // Read Status Register, Second Bus Cycle, targetAddress is any valid address within the device
- bSR7=ReadStatus & (1<<7); // lower 16-bit 8MB Strata
- bSR7_2=ReadStatus & (1<<(7+16));// higher 16-bit 8MB Strata
- while(!bSR7 | !bSR7_2)
- {
- _WR(targetAddress, 0x00700070);
- ReadStatus=_RD(targetAddress);
- bSR7=ReadStatus & (1<<7);
- bSR7_2=ReadStatus & (1<<(7+16));
- // Uart_Printf("wait !!n");
- }
- _WR(targetAddress, 0x00700070); // When the block erase is complete, status register bit SR.5 should be checked.
- // If a block erase error is detected, the status register should be cleared before
- // system software attempts correct actions.
- ReadStatus=_RD(targetAddress);
- bSR5=ReadStatus & (1<<5); // lower 16-bit 8MB Strata
- bSR5_2=ReadStatus & (1<<(5+16)); // higher 16-bit 8MB Strata
- if (bSR5==0 && bSR5_2==0)
- {
- Uart_Printf("Block_%x Erase O.K. n",targetAddress);
- }
- else
- {
- //Uart_Printf("Error in Block Erasure!!n");
- _WR(targetAddress, 0x00500050); // Clear Status Register
- error_erase=1; // But not major, is it casual ?
- }
- _RESET(); // write 0xffh(_RESET()) after the last opoeration to reset the device to read array mode.
- }
- //==========================================================================================
- int Strata_BlankCheck(int targetAddr,int targetSize)
- {
- int i,j;
- for (i=0; i<targetSize; i+=4)
- {
- j=*((volatile U32 *)(i+targetAddr));
- if (j!=0xffffffff) // In erasure it changes all block dta to 0xff
- {
- Uart_Printf("E : %x = %xn", (i+targetAddr), j);
- return 0;
- }
- }
- return 1;
- }
- //==========================================================================================
- int Strata_ProgFlash(U32 realAddr,U32 data)
- {
- volatile U32 *ptargetAddr;
- unsigned long ReadStatus;
- unsigned long bSR4; // Erase and Clear Lock-bits Status, lower 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR4_2; // Erase and Clear Lock-bits Status, higher 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR7; // Write State Machine Status, lower 16bit, 8MB Intel Strate Flash ROM
- unsigned long bSR7_2; // Write State Machine Status, higher 16bit, 8MB Intel Strate Flash ROM
- ptargetAddr = (volatile U32 *)realAddr;
- //_RESET();
- _WR(realAddr, 0x00400040); // realAddr is any valid adress within the device
- // Word/Byte Program(or 0x00100010 can be used)
- *ptargetAddr=data; // 32 bit data
- //_RESET();
- _WR(realAddr, 0x00700070); // Read Status Register
- ReadStatus=_RD(realAddr); // realAddr is any valid address within the device
- bSR7=ReadStatus & (1<<7);
- bSR7_2=ReadStatus & (1<<(7+16));
- while(!bSR7 || !bSR7_2)
- {
- // _RESET();
- _WR(realAddr, 0x00700070); // Read Status Register
- ReadStatus=_RD(realAddr);
- bSR7=ReadStatus & (1<<7);
- bSR7_2=ReadStatus & (1<<(7+16));
- }
-
- _WR(realAddr, 0x00700070);
- ReadStatus=_RD(realAddr); // Real Status Register
- bSR4=ReadStatus & (1<<4);
- bSR4_2=ReadStatus & (1<<(4+16));
-
- if (bSR4==0 && bSR4_2==0)
- {
- //Uart_Printf("Successful Program!!n");
- ;
- }
- else
- {
- //Uart_Printf("Error Program!!n");
- _WR(realAddr, 0x00500050); // Clear Status Register
- error_program=1; // But not major, is it casual ?
- }
- _RESET();
- return 0;
- }
- #define TARGET_ADDR_28F128 0x08000000 // nGCS4, 128MB area
- #define SOURCE_ADDR_FOR_28F128 0x31000000 // After 16MB of SDRAM
- // 0x30000000 - 0x30ffffff : Area for this test program
- //==========================================================================================
- void Program28F128J3A(void)
- {
- // FlashROM write program must reside at RAM region NOT ROM region
- // In reading and writing all interrupts are disabled because the flash ROM
- // strongly dislike to be disturbed by other stuff.
- // And the region of flash ROM must be I/O region which means NO cacheable
- // and NO bufferable in MMU. Check it out !!!
- // 2001.6.18. Mon. It's local rain. I'll hope it eliminates the drought in Korea. by chc
- unsigned long interrupt_reservoir;
- int i;
- Uart_Printf("n[ 28F128J3A Flash Writing Program ]nn");
- Uart_Printf(" *** Very Important Notes ***n");
- Uart_Printf("1. 28F128J3A must be located at 0x08000000.n"
- " J1:1-2, J2:2-3, J3:2-3, J4:1-2 n");
- Uart_Printf("2. After programming, 28F128J3A may be located at 0x0.n"
- " J1:2-3, J2:1-2, J3:1-2, J4:2-3 n");
- rINTMSK = BIT_ALLMSK;
- targetAddress=TARGET_ADDR_28F128;
- targetSize=downloadProgramSize;
- //downloadAddress=0x31000000;
- if(targetSize==0)
- {
- Uart_Printf("nThe data must be downloaded using ICE or USB from 0x31000000n");
- srcAddress=downloadAddress;
- }
- else
- {
- srcAddress=downloadAddress+4; //to discard the data head for the size
- }
- InputAddresses(); //srcAddress,targetSize,targetOffset will be determined.
- Uart_Printf("Source base address(0x31000000) = 0x%xn",srcAddress);
- Uart_Printf("Target base address(0x08000000) = 0x%xn",targetAddress);
- Uart_Printf("Target offset (0x0) = 0x%xn",targetOffset);
- Uart_Printf("Target size (0x20000*n) = 0x%xn",targetSize);
- if ( (Strata_CheckID(targetAddress) & 0xffff) != 0x0089 ) // ID number = 0x0089
- {
- Uart_Printf("Read ID : 0x%xn", Strata_CheckID(targetAddress));
- Uart_Printf("Identification check error !!n");
- return ;
- }
- if ( (Strata_CheckDevice(targetAddress) & 0xffff) != 0x0018 ) // Device number=0x0018
- {
- Uart_Printf("Device check error !!n");
- return ;
- }
- Uart_Printf("nErase the sector : 0x%x.n", targetAddress);
- for(i=0;i<targetSize;i+=0x20000)
- {
- Strata_EraseSector(targetAddress+targetOffset+i);
- }
-
- if(!Strata_BlankCheck(targetAddress+targetOffset,targetSize))
- {
- Uart_Printf("Blank Check Error!!!n");
- return;
- }
- Uart_Printf("nStart of the data writing...n");
- for (i=0; i<targetSize; i+=4)
- {
- Strata_ProgFlash(i+targetAddress+targetOffset, *((U32 *)(srcAddress+i)));
- if(i%0x10000==0xfffc)
- Uart_Printf("[%x]",(i+4)/0x10000);
- }
- Uart_Printf("nEnd of the data writing n");
- _RESET();
- Uart_Printf("Verifying Start...n");
- for (i=0; i<targetSize; i+=4)
- {
- if (*((U32 *)(i+targetAddress+targetOffset)) !=*((U32 *)(srcAddress+i)))
- {
- Uart_Printf("verify error src %08x = %08xn", srcAddress+i, *((U32 *)(srcAddress+i)));
- Uart_Printf("verify error des %08x = %08xn", i+targetAddress+targetOffset, *((U32 *)(i+targetAddress)));
- return;
- }
- }
- Uart_Printf("Verifying End!!!");
- }
- void Erase28F128J3A(void) // added by junon 10/29
- {
- // FlashROM write program must reside at RAM region NOT ROM region
- // In reading and writing all interrupts are disabled because the flash ROM
- // strongly dislike to be disturbed by other stuff.
- // And the region of flash ROM must be I/O region which means NO cacheable
- // and NO bufferable in MMU. Check it out !!!
- // 2001.6.18. Mon. It's local rain. I'll hope it eliminates the drought in Korea. by chc
- unsigned long interrupt_reservoir;
- int i;
- Uart_Printf("n[ 28F128J3A Flash Writing Program ]nn");
- Uart_Printf(" *** Very Important Notes ***n");
- Uart_Printf("1. 28F128J3A must be located at 0x08000000.n"
- " J1:1-2, J2:2-3, J3:2-3, J4:1-2 n");
- Uart_Printf("2. After programming, 28F128J3A may be located at 0x0.n"
- " J1:2-3, J2:1-2, J3:1-2, J4:2-3 n");
- rINTMSK = BIT_ALLMSK;
- targetAddress=TARGET_ADDR_28F128;
- targetSize=downloadProgramSize;
- //downloadAddress=0x31000000;
- if(targetSize==0)
- {
- Uart_Printf("nThe data must be downloaded using ICE or USB from 0x31000000n");
- srcAddress=downloadAddress;
- }
- else
- {
- srcAddress=downloadAddress+4; //to discard the data head for the size
- }
- InputAddresses(); //srcAddress,targetSize,targetOffset will be determined.
- Uart_Printf("Source base address(0x31000000) = 0x%xn",srcAddress);
- Uart_Printf("Target base address(0x08000000) = 0x%xn",targetAddress);
- Uart_Printf("Target offset (0x0) = 0x%xn",targetOffset);
- Uart_Printf("Target size (0x20000*n) = 0x%xn",targetSize);
- if ( Strata_CheckID(targetAddress) != 0x00890089 ) // ID number = 0x0089
- {
- Uart_Printf("Read ID : 0x%xn", Strata_CheckID(targetAddress));
- Uart_Printf("Identification check error !!n");
- return ;
- }
- if ( Strata_CheckDevice(targetAddress) != 0x00180018 ) // Device number=0x0018
- {
- Uart_Printf("Device check error !!n");
- return ;
- }
-
- #if 1 // lock bit setting test
- // Strata_SetBlockLock(targetAddress+0x10000); //just test
- for(i=0;i<10;i++)
- Uart_Printf("%d block value is %dn", i, Strata_CheckBlockLock(targetAddress+0x20000*i)&0x00010001);
- // if ( Strata_CheckBlockLock(targetAddress+0x20000*i) != 0x0 ) // Device number=0x0018
- // Uart_Printf("%d block is locked !!n", i);
- Strata_Unlock(targetAddress);
- for(i=0;i<10;i++)
- Uart_Printf("%d block value is %dn", i, Strata_CheckBlockLock(targetAddress+0x20000*i)&0x00010001);
- #endif
- // Strata_Unlock(targetAddress);
- Uart_Printf("nErase the sector : 0x%x.n", targetAddress);
- for(i=0;i<targetSize;i+=0x20000)
- {
- Strata_EraseSector(targetAddress+targetOffset+i);
- }
-
- if(!Strata_BlankCheck(targetAddress+targetOffset,targetSize))
- {
- Uart_Printf("Blank Check Error!!!n");
- return;
- }
- }
- //==========================================================================================
- static void InputAddresses(void)
- {
- Uart_Printf("n[ 28F128J3A Writing Program ]n");
- Uart_Printf("nSource size [0x?] : 0h~%xhn",downloadProgramSize);
- Uart_Printf("nAvailable Target Offset Address [0x?] : n");
- Uart_Printf("0h,20000h,40000h, ..., 1ce0000hn");
- Uart_Printf("Input target address offset [0x?] : ");
- targetOffset=Uart_GetIntNum();
- if(targetSize==0)
- {
- Uart_Printf("Input target size [0x?] : ");
- targetSize=Uart_GetIntNum();
- }
- }