openwrt/flashrom
1
0
Fork 0
mirror of https://review.coreboot.org/flashrom.git synced 2025-07-01 06:01:16 +02:00
Code Issues Releases Wiki Activity

Changes from NIKI

Browse Source 
Corresponding to coreboot v1 svn r873.
This commit is contained in:
Ronald G. Minnich
2003-09-12 22:41:53 +00:00
parent ceec420c3d
commit eaab50bb32
22 changed files with 622 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
82802ab.c
View File

@ -30,6 +30,7 @@
#include <sys/io.h> #include <sys/io.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include "flash.h" #include "flash.h"
#include "82802ab.h" #include "82802ab.h"
@ -145,11 +146,11 @@ int erase_82802ab_block(struct flashchip *flash, int offset)
status = wait_82802ab(flash->virt_addr); status = wait_82802ab(flash->virt_addr);
//print_82802ab_status(status); //print_82802ab_status(status);
printf("DONE BLOCK 0x%x\n", offset); printf("DONE BLOCK 0x%x\n", offset);
return(0);
} }
int erase_82802ab (struct flashchip * flash) int erase_82802ab (struct flashchip * flash)
{ {
int i; int i;
volatile unsigned char * bios = flash->virt_addr;
unsigned int total_size = flash->total_size * 1024; unsigned int total_size = flash->total_size * 1024;
printf("total_size is %d; flash->page_size is %d\n", printf("total_size is %d; flash->page_size is %d\n",
@ -157,6 +158,7 @@ int erase_82802ab (struct flashchip * flash)
for(i = 0; i < total_size; i += flash->page_size) for(i = 0; i < total_size; i += flash->page_size)
erase_82802ab_block(flash, i); erase_82802ab_block(flash, i);
printf("DONE ERASE\n"); printf("DONE ERASE\n");
return(0);
} }
void write_page_82802ab (volatile char * bios, char * src, volatile char * dst, void write_page_82802ab (volatile char * bios, char * src, volatile char * dst,
@ -173,7 +175,7 @@ void write_page_82802ab (volatile char * bios, char * src, volatile char * dst,
} }
int write_82802ab (struct flashchip * flash, char * buf) int write_82802ab (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size *1024, page_size = flash->page_size; int total_size = flash->total_size *1024, page_size = flash->page_size;
@ -193,4 +195,5 @@ int write_82802ab (struct flashchip * flash, char * buf)
} }
printf("\n"); printf("\n");
protect_82802ab (bios); protect_82802ab (bios);
return(0);
} }

6
82802ab.h
View File

@ -1,6 +1,9 @@
#ifndef __82802AB_H__
#define __82802AB_H__ 1
extern int probe_82802ab (struct flashchip * flash); extern int probe_82802ab (struct flashchip * flash);
extern int erase_82802ab (struct flashchip * flash); extern int erase_82802ab (struct flashchip * flash);
extern int write_82802ab (struct flashchip * flash, char * buf); extern int write_82802ab (struct flashchip * flash, unsigned char * buf);
extern __inline__ void toggle_ready_82802ab (volatile char * dst) extern __inline__ void toggle_ready_82802ab (volatile char * dst)
{ {
@ -42,3 +45,4 @@ extern __inline__ void protect_82802ab (volatile char * bios)
usleep(200); usleep(200);
} }
#endif /* !__82802AB_H__ */

29
Makefile
View File

@ -1,11 +1,30 @@
OBJS = jedec.o sst28sf040.o am29f040b.o mx29f002.c sst39sf020.o m29f400bt.o \ OBJS = jedec.o sst28sf040.o am29f040b.o mx29f002.c sst39sf020.o m29f400bt.o \
w49f002u.o w49f002u.o 82802ab.o msys_doc.o
OBJS += 82802ab.o CC = gcc -O2 -g -Wall -Werror
CC = gcc -O2 -g
all: ${OBJS} all: flash_rom flash_on
flash_rom: flash_rom.o ${OBJS}
${CC} -o flash_rom flash_rom.c ${OBJS} -lpci ${CC} -o flash_rom flash_rom.c ${OBJS} -lpci
# ${CC} -o flash_on flash_on.c
flash_on: flash_on.c
${CC} -o flash_on flash_on.c
clean: clean:
rm -f flash_rom flash_on *.o *~ rm -f flash_rom flash_on *.o *~
flash_rom.o: flash_rom.c flash.h jedec.h \
82802ab.h am29f040b.h m29f400bt.h msys_doc.h mx29f002.h sst28sf040.h \
sst39sf020.h w49f002u.h
flash_on.o: flash_on.c
82802ab.o: 82802ab.c 82802ab.h flash.h
am29f040b.o: am29f040b.c am29f040b.h jedec.h flash.h
m29f400bt.o: m29f400bt.c m29f400bt.h flash.h
msys_doc.o: msys_doc.c msys_doc.h flash.h
mx29f002.o: mx29f002.c mx29f002.h jedec.h flash.h
sst28sf040.o: sst28sf040.c sst28sf040.h jedec.h flash.h
sst39sf020.o: sst39sf020.c sst39sf020.h jedec.h flash.h
w49f002u.o: w49f002u.c w49f002u.h jedec.h flash.h
jedec.o: jedec.c jedec.h flash.h

17
am29f040b.c
View File

@ -24,10 +24,11 @@
* $Id$ * $Id$
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
static __inline__ erase_sector_29f040b (volatile char * bios, unsigned long address) static __inline__ int erase_sector_29f040b (volatile char * bios, unsigned long address)
{ {
*(bios + 0x555) = 0xAA; *(bios + 0x555) = 0xAA;
*(bios + 0x2AA) = 0x55; *(bios + 0x2AA) = 0x55;
@ -40,15 +41,17 @@ static __inline__ erase_sector_29f040b (volatile char * bios, unsigned long addr
/* wait for Toggle bit ready */ /* wait for Toggle bit ready */
toggle_ready_jedec(bios + address); toggle_ready_jedec(bios + address);
return(0);
} }
static __inline__ write_sector_29f040b(volatile char * bios, unsigned char * src, static __inline__ int write_sector_29f040b(volatile char * bios, unsigned char * src,
volatile unsigned char * dst, unsigned int page_size) volatile unsigned char * dst, unsigned int page_size)
{ {
int i; int i;
for (i = 0; i < page_size; i++) { for (i = 0; i < page_size; i++) {
printf("0x%08x", (unsigned long) dst - (unsigned long) bios); printf("0x%08lx", (unsigned long) dst - (unsigned long) bios);
*(bios + 0x555) = 0xAA; *(bios + 0x555) = 0xAA;
*(bios + 0x2AA) = 0x55; *(bios + 0x2AA) = 0x55;
@ -60,6 +63,8 @@ static __inline__ write_sector_29f040b(volatile char * bios, unsigned char * src
printf("\b\b\b\b\b\b\b\b\b\b"); printf("\b\b\b\b\b\b\b\b\b\b");
} }
return(0);
} }
int probe_29f040b (struct flashchip * flash) int probe_29f040b (struct flashchip * flash)
@ -98,9 +103,11 @@ int erase_29f040b (struct flashchip * flash)
myusec_delay(10); myusec_delay(10);
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return(0);
} }
int write_29f040b (struct flashchip * flash, char * buf) int write_29f040b (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024, page_size = flash->page_size;
@ -118,4 +125,6 @@ int write_29f040b (struct flashchip * flash, char * buf)
printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
} }
printf("\n"); printf("\n");
return(0);
} }

8
am29f040b.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __AM29F040B_H__
#define __AM29F040B_H__ 1
extern int probe_29f040b (struct flashchip * flash);
extern int erase_29f040b (struct flashchip * flash);
extern int write_29f040b (struct flashchip * flash, unsigned char * buf);
#endif /* !__AM29F040B_H__ */

30
flash.h
View File

@ -1,3 +1,6 @@
#ifndef __FLASH_H__
#define __FLASH_H__ 1
#include <sys/io.h> #include <sys/io.h>
#include <unistd.h> #include <unistd.h>
@ -12,7 +15,9 @@ struct flashchip {
int (*probe) (struct flashchip * flash); int (*probe) (struct flashchip * flash);
int (*erase) (struct flashchip * flash); int (*erase) (struct flashchip * flash);
int (*write) (struct flashchip * flash, char * buf); int (*write) (struct flashchip * flash, unsigned char * buf);
int (*read) (struct flashchip * flash, unsigned char * buf);
int fd_mem; int fd_mem;
volatile char *virt_addr_2; volatile char *virt_addr_2;
}; };
@ -40,22 +45,11 @@ struct flashchip {
#define ST_ID 0x20 #define ST_ID 0x20
#define ST_M29F400BT 0xD5 #define ST_M29F400BT 0xD5
extern int probe_28sf040 (struct flashchip * flash); #define MSYSTEMS_ID 0x156f
extern int erase_28sf040 (struct flashchip * flash); #define MSYSTEMS_MD2200 0xdb /* ? */
extern int write_28sf040 (struct flashchip * flash, char * buf); #define MSYSTEMS_MD2800 0x30 /* hmm -- both 0x30 */
#define MSYSTEMS_MD2802 0x30 /* hmm -- both 0x30 */
extern int probe_39sf020 (struct flashchip * flash); extern void myusec_delay(int time);
extern int erase_39sf020 (struct flashchip * flash);
extern int write_39sf020 (struct flashchip * flash, char * buf);
extern int probe_29f040b (struct flashchip * flash); #endif /* !__FLASH_H__ */
extern int erase_29f040b (struct flashchip * flash);
extern int write_29f040b (struct flashchip * flash, char * buf);
extern int probe_29f002 (struct flashchip * flash);
extern int erase_29f002 (struct flashchip * flash);
extern int write_29f002 (struct flashchip * flash, char * buf);
extern int probe_49f002 (struct flashchip * flash);
extern int erase_49f002 (struct flashchip * flash);
extern int write_49f002 (struct flashchip * flash, char * buf);

5
flash_on.c
View File

@ -33,8 +33,9 @@
#include <sys/io.h> #include <sys/io.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
main() int main()
{ {
char b; char b;
@ -71,4 +72,6 @@ main()
outb(0x02, 0x2e); outb(0x02, 0x2e);
outb(0x02, 0x2f); outb(0x02, 0x2f);
return(0);
} }

59
flash_rom.c
View File

@ -30,43 +30,55 @@
#include <fcntl.h> #include <fcntl.h>
#include <sys/mman.h> #include <sys/mman.h>
#include <sys/io.h> #include <sys/io.h>
#include <sys/time.h>
#include <unistd.h> #include <unistd.h>
#include <stdio.h> #include <stdio.h>
#include <pci/pci.h> #include <pci/pci.h>
#include <string.h> #include <string.h>
#include <stdlib.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
#include "m29f400bt.h" #include "m29f400bt.h"
#include "82802ab.h" #include "82802ab.h"
#include "msys_doc.h"
#include "am29f040b.h"
#include "sst28sf040.h"
#include "w49f002u.h"
#include "sst39sf020.h"
#include "mx29f002.h"
struct flashchip flashchips[] = { struct flashchip flashchips[] = {
{"Am29F040B", AMD_ID, AM_29F040B, NULL, 512, 64*1024, {"Am29F040B", AMD_ID, AM_29F040B, NULL, 512, 64*1024,
probe_29f040b, erase_29f040b, write_29f040b}, probe_29f040b, erase_29f040b, write_29f040b, NULL},
{"At29C040A", ATMEL_ID, AT_29C040A, NULL, 512, 256, {"At29C040A", ATMEL_ID, AT_29C040A, NULL, 512, 256,
probe_jedec, erase_jedec, write_jedec}, probe_jedec, erase_jedec, write_jedec, NULL},
{"Mx29f002", MX_ID, MX_29F002, NULL, 256, 64*1024, {"Mx29f002", MX_ID, MX_29F002, NULL, 256, 64*1024,
probe_29f002, erase_29f002, write_29f002}, probe_29f002, erase_29f002, write_29f002, NULL},
{"SST29EE020A", SST_ID, SST_29EE020A, NULL, 256, 128, {"SST29EE020A", SST_ID, SST_29EE020A, NULL, 256, 128,
probe_jedec, erase_jedec, write_jedec}, probe_jedec, erase_jedec, write_jedec, NULL},
{"SST28SF040A", SST_ID, SST_28SF040, NULL, 512, 256, {"SST28SF040A", SST_ID, SST_28SF040, NULL, 512, 256,
probe_28sf040, erase_28sf040, write_28sf040}, probe_28sf040, erase_28sf040, write_28sf040, NULL},
{"SST39SF020A", SST_ID, SST_39SF020, NULL, 256, 4096, {"SST39SF020A", SST_ID, SST_39SF020, NULL, 256, 4096,
probe_39sf020, erase_39sf020, write_39sf020}, probe_39sf020, erase_39sf020, write_39sf020, NULL},
{"SST39VF020", SST_ID, SST_39VF020, NULL, 256, 4096, {"SST39VF020", SST_ID, SST_39VF020, NULL, 256, 4096,
probe_39sf020, erase_39sf020, write_39sf020}, probe_39sf020, erase_39sf020, write_39sf020, NULL},
{"W29C011", WINBOND_ID, W_29C011, NULL, 128, 128, {"W29C011", WINBOND_ID, W_29C011, NULL, 128, 128,
probe_jedec, erase_jedec, write_jedec}, probe_jedec, erase_jedec, write_jedec, NULL},
{"W29C020C", WINBOND_ID, W_29C020C, NULL, 256, 128, {"W29C020C", WINBOND_ID, W_29C020C, NULL, 256, 128,
probe_jedec, erase_jedec, write_jedec}, probe_jedec, erase_jedec, write_jedec, NULL},
{"W49F002U", WINBOND_ID, W_49F002U, NULL, 256, 128, {"W49F002U", WINBOND_ID, W_49F002U, NULL, 256, 128,
probe_49f002, erase_49f002, write_49f002}, probe_49f002, erase_49f002, write_49f002, NULL},
{"M29F400BT", ST_ID, ST_M29F400BT , NULL, 512, 64*1024, {"M29F400BT", ST_ID, ST_M29F400BT , NULL, 512, 64*1024,
probe_m29f400bt, erase_m29f400bt, write_linuxbios_m29f400bt}, probe_m29f400bt, erase_m29f400bt, write_linuxbios_m29f400bt, NULL},
{"82802ab", 137, 173 , NULL, 512, 64*1024, {"82802ab", 137, 173 , NULL, 512, 64*1024,
probe_82802ab, erase_82802ab, write_82802ab}, probe_82802ab, erase_82802ab, write_82802ab, NULL},
{"82802ac", 137, 172 , NULL, 1024, 64*1024, {"82802ac", 137, 172 , NULL, 1024, 64*1024,
probe_82802ab, erase_82802ab, write_82802ab}, probe_82802ab, erase_82802ab, write_82802ab, NULL},
{"MD-2802 (M-Systems DiskOnChip Millennium Module)",
MSYSTEMS_ID, MSYSTEMS_MD2802,
NULL, 8, 8*1024,
probe_md2802, erase_md2802, write_md2802, read_md2802},
{NULL,} {NULL,}
}; };
@ -208,7 +220,6 @@ enable_flash_vt8231(struct pci_dev *dev, char *name) {
int int
enable_flash_cs5530(struct pci_dev *dev, char *name) { enable_flash_cs5530(struct pci_dev *dev, char *name) {
unsigned char new; unsigned char new;
int ok;
pci_write_byte(dev, 0x52, 0xee); pci_write_byte(dev, 0x52, 0xee);
@ -225,7 +236,6 @@ enable_flash_cs5530(struct pci_dev *dev, char *name) {
int int
enable_flash_sc1100(struct pci_dev *dev, char *name) { enable_flash_sc1100(struct pci_dev *dev, char *name) {
unsigned char new; unsigned char new;
int ok;
pci_write_byte(dev, 0x52, 0xee); pci_write_byte(dev, 0x52, 0xee);
@ -280,6 +290,14 @@ struct flashchip * probe_flash(struct flashchip * flash)
} }
printf("Trying %s, %d KB\n", flash->name, flash->total_size); printf("Trying %s, %d KB\n", flash->name, flash->total_size);
size = flash->total_size * 1024; size = flash->total_size * 1024;
/* BUG? what happens if getpagesize() > size!?
-> ``Error MMAP /dev/mem: Invalid argument'' NIKI */
if(getpagesize() > size)
{
size = getpagesize();
printf("%s: warning: size: %d -> %ld\n", __FUNCTION__,
flash->total_size * 1024, (unsigned long)size);
}
bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED, bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
fd_mem, (off_t) (0 - size)); fd_mem, (off_t) (0 - size));
if (bios == MAP_FAILED) { if (bios == MAP_FAILED) {
@ -291,7 +309,7 @@ struct flashchip * probe_flash(struct flashchip * flash)
if (flash->probe(flash) == 1) { if (flash->probe(flash) == 1) {
printf ("%s found at physical address: 0x%lx\n", printf ("%s found at physical address: 0x%lx\n",
flash->name, (0 - size), bios); flash->name, (0 - size));
return flash; return flash;
} }
munmap ((void *) bios, size); munmap ((void *) bios, size);
@ -332,7 +350,6 @@ void
myusec_calibrate_delay() myusec_calibrate_delay()
{ {
int count = 1000; int count = 1000;
volatile unsigned long i;
unsigned long timeusec; unsigned long timeusec;
struct timeval start, end; struct timeval start, end;
int ok = 0; int ok = 0;
@ -356,7 +373,7 @@ myusec_calibrate_delay()
// compute one microsecond. That will be count / time // compute one microsecond. That will be count / time
micro = count / timeusec; micro = count / timeusec;
fprintf(stderr, "%dM loops per second\n", micro); fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro);
} }
@ -391,7 +408,6 @@ enable_flash_write() {
int i; int i;
struct pci_access *pacc; struct pci_access *pacc;
struct pci_dev *dev = 0; struct pci_dev *dev = 0;
unsigned int c;
FLASH_ENABLE *enable = 0; FLASH_ENABLE *enable = 0;
pacc = pci_alloc(); /* Get the pci_access structure */ pacc = pci_alloc(); /* Get the pci_access structure */
@ -503,7 +519,10 @@ main (int argc, char * argv[])
exit(1); exit(1);
} }
printf("Reading Flash..."); printf("Reading Flash...");
memcpy(buf, (const char *) flash->virt_addr, size); if(flash->read == NULL)
memcpy(buf, (const char *) flash->virt_addr, size);
else
flash->read (flash, buf);
fwrite(buf, sizeof(char), size, image); fwrite(buf, sizeof(char), size, image);
fclose(image); fclose(image);
printf("done\n"); printf("done\n");

7
jedec.c
View File

@ -24,6 +24,7 @@
* $Id$ * $Id$
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
@ -68,9 +69,11 @@ int erase_jedec (struct flashchip * flash)
myusec_delay(10); myusec_delay(10);
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return(0);
} }
int write_jedec (struct flashchip * flash, char * buf) int write_jedec (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size *1024, page_size = flash->page_size; int total_size = flash->total_size *1024, page_size = flash->page_size;
@ -90,4 +93,6 @@ int write_jedec (struct flashchip * flash, char * buf)
} }
printf("\n"); printf("\n");
protect_jedec (bios); protect_jedec (bios);
return(0);
} }

7
jedec.h
View File

@ -1,6 +1,9 @@
#ifndef __JEDEC_H__
#define __JEDEC_H__ 1
extern int probe_jedec (struct flashchip * flash); extern int probe_jedec (struct flashchip * flash);
extern int erase_jedec (struct flashchip * flash); extern int erase_jedec (struct flashchip * flash);
extern int write_jedec (struct flashchip * flash, char * buf); extern int write_jedec (struct flashchip * flash, unsigned char * buf);
extern __inline__ void toggle_ready_jedec (volatile char * dst) extern __inline__ void toggle_ready_jedec (volatile char * dst)
{ {
@ -59,3 +62,5 @@ extern __inline__ void write_page_jedec (volatile char * bios, char * src, volat
usleep(100); usleep(100);
toggle_ready_jedec(dst-1); toggle_ready_jedec(dst-1);
} }
#endif /* !__JEDEC_H__ */

13
m29f400bt.c
View File

@ -70,6 +70,8 @@ int erase_m29f400bt (struct flashchip * flash)
myusec_delay(10); myusec_delay(10);
toggle_ready_m29f400bt(bios); toggle_ready_m29f400bt(bios);
return(0);
} }
int block_erase_m29f400bt (volatile char * bios ,volatile char * dst) int block_erase_m29f400bt (volatile char * bios ,volatile char * dst)
@ -86,9 +88,11 @@ int block_erase_m29f400bt (volatile char * bios ,volatile char * dst)
myusec_delay(10); myusec_delay(10);
toggle_ready_m29f400bt(bios); toggle_ready_m29f400bt(bios);
return(0);
} }
int write_m29f400bt (struct flashchip * flash, char * buf) int write_m29f400bt (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size *1024, page_size = flash->page_size; int total_size = flash->total_size *1024, page_size = flash->page_size;
@ -138,11 +142,12 @@ int write_m29f400bt (struct flashchip * flash, char * buf)
printf("\n"); printf("\n");
//protect_m29f400bt (bios); //protect_m29f400bt (bios);
return(0);
} }
int write_linuxbios_m29f400bt (struct flashchip * flash, char * buf) int write_linuxbios_m29f400bt (struct flashchip * flash, unsigned char * buf)
{ {
int i;
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
printf ("Programming Page:\n "); printf ("Programming Page:\n ");
@ -179,4 +184,6 @@ int write_linuxbios_m29f400bt (struct flashchip * flash, char * buf)
printf("\n"); printf("\n");
//protect_m29f400bt (bios); //protect_m29f400bt (bios);
return(0);
} }

15
m29f400bt.h
View File

@ -1,8 +1,13 @@
#ifndef __M29F400BT_H__
#define __M29F400BT_H__ 1
#include <stdio.h>
extern int probe_m29f400bt (struct flashchip * flash); extern int probe_m29f400bt (struct flashchip * flash);
extern int erase_m29f400bt (struct flashchip * flash); extern int erase_m29f400bt (struct flashchip * flash);
extern int block_erase_m29f400bt (volatile char * bios, volatile char * dst); extern int block_erase_m29f400bt (volatile char * bios, volatile char * dst);
extern int write_m29f400bt (struct flashchip * flash, char * buf); extern int write_m29f400bt (struct flashchip * flash, unsigned char * buf);
extern int write_linuxbios_m29f400bt (struct flashchip * flash, char * buf); extern int write_linuxbios_m29f400bt (struct flashchip * flash, unsigned char * buf);
extern __inline__ void toggle_ready_m29f400bt (volatile char * dst) extern __inline__ void toggle_ready_m29f400bt (volatile char * dst)
{ {
@ -20,7 +25,7 @@ extern __inline__ void toggle_ready_m29f400bt (volatile char * dst)
} }
} }
extern __inline__ void data_polling_m29f400bt (volatile char * dst, char data) extern __inline__ void data_polling_m29f400bt (volatile char * dst, unsigned char data)
{ {
unsigned int i = 0; unsigned int i = 0;
char tmp; char tmp;
@ -59,9 +64,11 @@ extern __inline__ void write_page_m29f400bt (volatile char * bios, char * src, v
//*(volatile char *) (bios) = 0xF0; //*(volatile char *) (bios) = 0xF0;
//usleep(5); //usleep(5);
toggle_ready_m29f400bt(dst); toggle_ready_m29f400bt(dst);
printf("Value in the flash at address %p = %#x, want %#x\n",dst-bios, *dst, *src); printf("Value in the flash at address %p = %#x, want %#x\n",(char *)(dst-bios), *dst, *src);
dst++; dst++;
src++; src++;
} }
} }
#endif /* !__M29F400BT_H__ */

289
msys_doc.c Normal file
View File

@ -0,0 +1,289 @@
/*
* msys_doc.c: driver for programming m-systems doc devices
*
*
* Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <unistd.h>
#include "flash.h"
#include "msys_doc.h"
static int doc_wait(volatile char *bios, int timeout);
static unsigned char doc_read_chipid(volatile char *bios);
static unsigned char doc_read_docstatus(volatile char *bios);
static unsigned char doc_read_cdsncontrol(volatile char *bios);
static void doc_write_cdsncontrol(volatile char *bios, unsigned char data);
int
probe_md2802(struct flashchip * flash)
{
volatile char *bios = flash->virt_addr;
unsigned char chipid;
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
unsigned char id_0x55, id_0xAA;
#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
int i, toggle_a, toggle_b;
printf("%s:\n", __FUNCTION__);
printf("%s: *******************************\n", __FUNCTION__);
printf("%s: * THIS IS A PRE ALPHA VERSION *\n", __FUNCTION__);
printf("%s: * IN THE DEVELOPEMENT *********\n", __FUNCTION__);
printf("%s: * PROCESS RIGHT NOW. **********\n", __FUNCTION__);
printf("%s: *******************************\n", __FUNCTION__);
printf("%s: * IF YOU ARE NOT A DEVELOPER **\n", __FUNCTION__);
printf("%s: * THEN DO NOT TRY TO READ OR **\n", __FUNCTION__);
printf("%s: * WRITE TO THIS DEVICE ********\n", __FUNCTION__);
printf("%s: *******************************\n", __FUNCTION__);
printf("%s:\n", __FUNCTION__);
printf("%s: switching off reset mode ...\n", __FUNCTION__);
doc_write(0x85, bios, DOCControl);
doc_write(0x85, bios, DOCControl);
doc_read_4nop(bios);
if(doc_wait(bios, 5000))
return(-1);
printf("%s: switching off reset mode ... done\n", __FUNCTION__);
printf("%s:\n", __FUNCTION__);
printf("%s: switching off write protection ...\n", __FUNCTION__);
doc_write_cdsncontrol(bios, doc_read_cdsncontrol(bios)&(~0x08));
printf("%s: switching off write protection ... done\n", __FUNCTION__);
printf("%s:\n", __FUNCTION__);
chipid = doc_read_chipid(bios);
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
id_0x55 = doc_read(bios, IPL_0x0000);
id_0xAA = doc_read(bios, IPL_0x0001);
#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
printf("%s: IPL_0x0000: 0x%02x\n", __FUNCTION__, id_0x55);
printf("%s: IPL_0x0001: 0x%02x\n", __FUNCTION__, id_0xAA);
printf("%s: IPL_0x0002: 0x%02x\n", __FUNCTION__,
doc_read(bios, IPL_0x0002));
printf("%s: IPL_0x0003: 0x%02x\n", __FUNCTION__,
doc_read(bios, IPL_0x0003));
printf("%s:\n", __FUNCTION__);
printf("%s: ChipID: 0x%02x\n", __FUNCTION__, chipid);
printf("%s: DOCStatus: 0x%02x\n", __FUNCTION__,
doc_read_docstatus(bios));
printf("%s: FloorSelect: 0x%02x\n", __FUNCTION__,
doc_read(bios, FloorSelect));
printf("%s: CDSNControl: 0x%02x\n", __FUNCTION__,
doc_read_cdsncontrol(bios));
printf("%s: CDSNDeviceSelect: 0x%02x\n", __FUNCTION__,
doc_read(bios, CDSNDeviceSelect));
printf("%s: ECCConfiguration: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCConfiguration));
printf("%s: CDSNSlowIO: 0x%02x\n", __FUNCTION__,
doc_read(bios, CDSNSlowIO));
printf("%s: ECCSyndrome0: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome0));
printf("%s: ECCSyndrome1: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome1));
printf("%s: ECCSyndrome2: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome2));
printf("%s: ECCSyndrome3: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome3));
printf("%s: ECCSyndrome4: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome4));
printf("%s: ECCSyndrome5: 0x%02x\n", __FUNCTION__,
doc_read(bios, ECCSyndrome5));
printf("%s: AliasResolution: 0x%02x\n", __FUNCTION__,
doc_read(bios, AliasResolution));
printf("%s: ConfigurationInput: 0x%02x\n", __FUNCTION__,
doc_read(bios, ConfigurationInput));
printf("%s: ReadPipelineInitialization: 0x%02x\n", __FUNCTION__,
doc_read(bios, ReadPipelineInitialization));
printf("%s: LastDataRead: 0x%02x\n", __FUNCTION__,
doc_read(bios, LastDataRead));
printf("%s:\n", __FUNCTION__);
printf("%s: checking ECCConfiguration toggle bit\n", __FUNCTION__);
printf("%s:", __FUNCTION__);
toggle_a = toggle_b = 0;
for(i=0; i<10; i++)
{
unsigned char toggle = doc_toggle(bios);
printf(" 0x%02x", toggle);
if(i%2)
toggle_a += toggle;
else
toggle_b += toggle;
} /* for(i=0; i<10; i++) */
printf("\n%s: toggle result: %d/%d\n", __FUNCTION__, toggle_a, toggle_b);
if(chipid == flash->model_id
&& ((toggle_a==5 && toggle_b==0)||(toggle_a==0 && toggle_b==5))
#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
&& id_0x55 == 0x55 && id_0xAA == 0xaa
#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
)
{
return(1);
}
return(0);
} /* int probe_md2802(struct flashchip *flash) */
int
read_md2802(struct flashchip *flash, unsigned char *buf)
{
return(0);
} /* int read_md2802(struct flashchip *flash, unsigned char *buf) */
int
erase_md2802(struct flashchip *flash)
{
volatile char *bios = flash->virt_addr;
return(1);
*(volatile char *)(bios + 0x5555) = 0xAA;
*(volatile char *)(bios + 0x2AAA) = 0x55;
*(volatile char *)(bios + 0x5555) = 0x80;
*(volatile char *)(bios + 0x5555) = 0xAA;
*(volatile char *)(bios + 0x2AAA) = 0x55;
*(volatile char *)(bios + 0x5555) = 0x10;
} /* int erase_md2802(struct flashchip *flash) */
int
write_md2802(struct flashchip *flash, unsigned char *buf)
{
int i;
int total_size = flash->total_size *1024, page_size = flash->page_size;
volatile unsigned char * bios = flash->virt_addr;
return(1);
erase_md2802 (flash);
if (*bios != (unsigned char ) 0xff) {
printf("ERASE FAILED\n");
return -1;
}
printf ("Programming Page: ");
for (i = 0; i < total_size/page_size; i++) {
printf ("%04d at address: 0x%08x", i, i * page_size);
//write_page_md2802(bios, buf + i * page_size, bios + i * page_size, page_size);
printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
}
printf("\n");
//protect_md2802(bios);
} /* int write_md2802(struct flashchip *flash, char *buf) */
/*
wait timeout msec for doc to become ready
return:
0: ready
-1: timeout expired
*/
static int
doc_wait(volatile char *bios, int timeout)
{
int i = 20;
doc_read_4nop(bios);
while(_doc_busy(bios) && (i != 0))
{
usleep(timeout*1000/20);
i--;
}
doc_read_2nop(bios);
if(_doc_busy(bios))
{
doc_read_2nop(bios);
return(-1);
}
return(0);
} /* static int doc_wait(volatile char *bios, int timeout) */
static unsigned char
doc_read_docstatus(volatile char *bios)
{
doc_read(bios, CDSNSlowIO);
doc_read_2nop(bios);
return(doc_read(bios, _DOCStatus));
} /* static unsigned char doc_read_docstatus(volatile char *bios) */
static unsigned char
doc_read_chipid(volatile char *bios)
{
doc_read(bios, CDSNSlowIO);
doc_read_2nop(bios);
return(doc_read(bios, _ChipID));
} /* static unsigned char doc_read_chipid(volatile char *bios) */
static unsigned char
doc_read_cdsncontrol(volatile char *bios)
{
unsigned char value;
/* the delays might be necessary when reading the busy bit,
but because a read to this reg reads the busy bit
anyway we better do this delays... */
doc_read_4nop(bios);
value = doc_read(bios, _CDSNControl);
doc_read_2nop(bios);
return(value);
} /* static unsigned char doc_read_chipid(volatile char *bios) */
static void
doc_write_cdsncontrol(volatile char *bios, unsigned char data)
{
doc_write(data, bios, _CDSNControl);
doc_read_4nop(bios);
} /* static void doc_write_chipid(volatile char *bios, unsigned char data) */

110
msys_doc.h Normal file
View File

@ -0,0 +1,110 @@
/*
* msys_doc.h: header file of msys_doc.c
*
*
* Copyright 2003 Niki W. Waibel <niki.waibel@gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __MSYS_DOC_H__
#define __MSYS_DOC_H__ 1
/* idea from include/linux/mtd/doc2000.h */
/* registers with __ should not be read/written directly */
#define MSYSTEMS_DOC_R__ChipID 0x1000
#define MSYSTEMS_DOC_R__DOCStatus 0x1001
#define MSYSTEMS_DOC_W_DOCControl 0x1002
#define MSYSTEMS_DOC_R_FloorSelect 0x1003
#define MSYSTEMS_DOC_W_FloorSelect 0x1003
#define MSYSTEMS_DOC_R__CDSNControl 0x1004
#define MSYSTEMS_DOC_W__CDSNControl 0x1004
#define MSYSTEMS_DOC_R_CDSNDeviceSelect 0x1005
#define MSYSTEMS_DOC_W_CDSNDeviceSelect 0x1005
#define MSYSTEMS_DOC_R_ECCConfiguration 0x1006
#define MSYSTEMS_DOC_W_ECCConfiguration 0x1006
#define MSYSTEMS_DOC_R_CDSNSlowIO 0x100d
#define MSYSTEMS_DOC_W_CDSNSlowIO 0x100d
#define MSYSTEMS_DOC_R_ECCSyndrome0 0x1010
#define MSYSTEMS_DOC_R_ECCSyndrome1 0x1011
#define MSYSTEMS_DOC_R_ECCSyndrome2 0x1012
#define MSYSTEMS_DOC_R_ECCSyndrome3 0x1013
#define MSYSTEMS_DOC_R_ECCSyndrome4 0x1014
#define MSYSTEMS_DOC_R_ECCSyndrome5 0x1015
#define MSYSTEMS_DOC_R_AliasResolution 0x101b
#define MSYSTEMS_DOC_W_AliasResolution 0x101b
#define MSYSTEMS_DOC_R_ConfigurationInput 0x101c
#define MSYSTEMS_DOC_W_ConfigurationInput 0x101c
#define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
#define MSYSTEMS_DOC_W_WritePipelineTermination 0x101e
#define MSYSTEMS_DOC_R_LastDataRead 0x101f
#define MSYSTEMS_DOC_W_LastDataRead 0x101f
#define MSYSTEMS_DOC_R_NOP 0x1020
#define MSYSTEMS_DOC_W_NOP 0x1020
#define MSYSTEMS_DOC_R_IPL_0x0000 0x0000
#define MSYSTEMS_DOC_R_IPL_0x0001 0x0001
#define MSYSTEMS_DOC_R_IPL_0x0002 0x0002
#define MSYSTEMS_DOC_R_IPL_0x0003 0x0003
#define MSYSTEMS_DOC_R_CDSNIO_BASE 0x0800
#define MSYSTEMS_DOC_W_CDSNIO_BASE 0x0800
#define doc_read(base,reg) \
(*(volatile unsigned char *)(base + MSYSTEMS_DOC_R_##reg))
#define doc_read_nop(base) \
doc_read(base, NOP)
#define doc_read_2nop(base) \
{ doc_read_nop(base); doc_read_nop(base); }
#define doc_read_4nop(base) \
{ doc_read_2nop(base); doc_read_2nop(base); }
#define doc_write(data,base,reg) \
(*(volatile unsigned char *)(base + MSYSTEMS_DOC_W_##reg)) = data
#define doc_write_nop(base) \
doc_write(0, base, NOP)
#define doc_write_2nop(base) \
{ doc_write_nop(base); doc_write_nop(base); }
#define doc_write_4nop(base) \
{ doc_write_2nop(base); doc_write_2nop(base); }
#define _doc_busy(base) /* 0: ready; -1: busy */ \
( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
#define doc_toggle(base) /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
extern int probe_md2802(struct flashchip *flash);
extern int read_md2802(struct flashchip *flash, unsigned char *buf);
extern int erase_md2802(struct flashchip *flash);
extern int write_md2802(struct flashchip *flash, unsigned char *buf);
#endif /* !__MSYS_DOC_H__ */

16
mx29f002.c
View File

@ -25,13 +25,15 @@
* $Id$ * $Id$
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
#include "mx29f002.h"
int probe_29f002 (struct flashchip * flash) int probe_29f002 (struct flashchip * flash)
{ {
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
unsigned char id1, id2, id3; unsigned char id1, id2;
*(bios + 0x5555) = 0xAA; *(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(bios + 0x2AAA) = 0x55;
@ -55,7 +57,6 @@ int erase_29f002 (struct flashchip * flash)
{ {
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
again:
*(bios + 0x555) = 0xF0; *(bios + 0x555) = 0xF0;
*(bios + 0x555) = 0xAA; *(bios + 0x555) = 0xAA;
*(bios + 0x2AA) = 0x55; *(bios + 0x2AA) = 0x55;
@ -80,14 +81,15 @@ int erase_29f002 (struct flashchip * flash)
*(bios + 0x3bfff) = 0x30; *(bios + 0x3bfff) = 0x30;
#endif #endif
return(0);
} }
int write_29f002 (struct flashchip * flash, char * buf) int write_29f002 (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024;
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
volatile char * dst = bios, * src = buf; volatile char * dst = bios;
*bios = 0xF0; *bios = 0xF0;
myusec_delay(10); myusec_delay(10);
@ -98,7 +100,7 @@ int write_29f002 (struct flashchip * flash, char * buf)
for (i = 0; i < total_size; i++) { for (i = 0; i < total_size; i++) {
/* write to the sector */ /* write to the sector */
if ((i & 0xfff) == 0) if ((i & 0xfff) == 0)
printf ("address: 0x%08lx", i); printf ("address: 0x%08lx", (unsigned long)i);
*(bios + 0x5555) = 0xAA; *(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0xA0; *(bios + 0x5555) = 0xA0;
@ -112,4 +114,6 @@ int write_29f002 (struct flashchip * flash, char * buf)
} }
#endif #endif
printf("\n"); printf("\n");
return(0);
} }

8
mx29f002.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __MX29F002_H__
#define __MX29F002_H__ 1
extern int probe_29f002 (struct flashchip * flash);
extern int erase_29f002 (struct flashchip * flash);
extern int write_29f002 (struct flashchip * flash, unsigned char * buf);
#endif /* !__MX29F002_H__ */

15
sst28sf040.c
View File

@ -25,6 +25,7 @@
* $Id$ * $Id$
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
@ -63,16 +64,18 @@ static __inline__ void unprotect_28sf040 (volatile char * bios)
tmp = *(volatile unsigned char *) (bios + 0x041A); tmp = *(volatile unsigned char *) (bios + 0x041A);
} }
static __inline__ erase_sector_28sf040 (volatile char * bios, unsigned long address) static __inline__ int erase_sector_28sf040 (volatile char * bios, unsigned long address)
{ {
*bios = AUTO_PG_ERASE1; *bios = AUTO_PG_ERASE1;
*(bios + address) = AUTO_PG_ERASE2; *(bios + address) = AUTO_PG_ERASE2;
/* wait for Toggle bit ready */ /* wait for Toggle bit ready */
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return(0);
} }
static __inline__ write_sector_28sf040(volatile char * bios, unsigned char * src, static __inline__ int write_sector_28sf040(volatile char * bios, unsigned char * src,
volatile unsigned char * dst, unsigned int page_size) volatile unsigned char * dst, unsigned int page_size)
{ {
int i; int i;
@ -91,6 +94,8 @@ static __inline__ write_sector_28sf040(volatile char * bios, unsigned char * src
/* wait for Toggle bit ready */ /* wait for Toggle bit ready */
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
} }
return(0);
} }
int probe_28sf040 (struct flashchip * flash) int probe_28sf040 (struct flashchip * flash)
@ -133,9 +138,11 @@ int erase_28sf040 (struct flashchip * flash)
myusec_delay(10); myusec_delay(10);
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return(0);
} }
int write_28sf040 (struct flashchip * flash, char * buf) int write_28sf040 (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024, page_size = flash->page_size;
@ -157,4 +164,6 @@ int write_28sf040 (struct flashchip * flash, char * buf)
printf("\n"); printf("\n");
protect_28sf040 (bios); protect_28sf040 (bios);
return(0);
} }

8
sst28sf040.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __SST28SF040_H__
#define __SST28SF040_H__
extern int probe_28sf040 (struct flashchip * flash);
extern int erase_28sf040 (struct flashchip * flash);
extern int write_28sf040 (struct flashchip * flash, unsigned char * buf);
#endif /* !__SST28SF040_H__ */

23
sst39sf020.c
View File

@ -25,9 +25,10 @@
* $Id$ * $Id$
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
#include <stdio.h> #include "sst39sf020.h"
#define AUTO_PG_ERASE1 0x20 #define AUTO_PG_ERASE1 0x20
#define AUTO_PG_ERASE2 0xD0 #define AUTO_PG_ERASE2 0xD0
@ -64,16 +65,18 @@ static __inline__ void unprotect_39sf020 (volatile char * bios)
tmp = *(volatile unsigned char *) (bios + 0x041A); tmp = *(volatile unsigned char *) (bios + 0x041A);
} }
static __inline__ erase_sector_39sf020 (volatile char * bios, unsigned long address) static __inline__ int erase_sector_39sf020 (volatile char * bios, unsigned long address)
{ {
*bios = AUTO_PG_ERASE1; *bios = AUTO_PG_ERASE1;
*(bios + address) = AUTO_PG_ERASE2; *(bios + address) = AUTO_PG_ERASE2;
/* wait for Toggle bit ready */ /* wait for Toggle bit ready */
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return(0);
} }
static __inline__ write_sector_39sf020(volatile char * bios, static __inline__ int write_sector_39sf020(volatile char * bios,
unsigned char * src, unsigned char * src,
volatile unsigned char * dst, volatile unsigned char * dst,
unsigned int page_size) unsigned int page_size)
@ -84,7 +87,7 @@ static __inline__ write_sector_39sf020(volatile char * bios,
for (i = 0; i < page_size; i++) { for (i = 0; i < page_size; i++) {
if (*dst != 0xff) { if (*dst != 0xff) {
printf("FATAL: dst %p not erased (val 0x%x\n", dst, *dst); printf("FATAL: dst %p not erased (val 0x%x\n", dst, *dst);
return; return(-1);
} }
/* transfer data from source to destination */ /* transfer data from source to destination */
if (*src == 0xFF) { if (*src == 0xFF) {
@ -101,10 +104,12 @@ static __inline__ write_sector_39sf020(volatile char * bios,
*dst = *src; *dst = *src;
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
if (*dst != *src) if (*dst != *src)
printf("BAD! dst 0x%x val 0x%x src 0x%x\n", printf("BAD! dst 0x%lx val 0x%x src 0x%x\n",
dst, *dst, *src); (unsigned long)dst, *dst, *src);
dst++, src++; dst++, src++;
} }
return(0);
} }
int probe_39sf020 (struct flashchip * flash) int probe_39sf020 (struct flashchip * flash)
@ -162,9 +167,11 @@ int erase_39sf020 (struct flashchip * flash)
*Temp = 0x10; /* write data 0x55 to the address */ *Temp = 0x10; /* write data 0x55 to the address */
myusec_delay(50000); myusec_delay(50000);
return(0);
} }
int write_39sf020 (struct flashchip * flash, char * buf) int write_39sf020 (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024, page_size = flash->page_size;
@ -187,4 +194,6 @@ int write_39sf020 (struct flashchip * flash, char * buf)
printf("\n"); printf("\n");
// protect_39sf020 (bios); // protect_39sf020 (bios);
return(0);
} }

8
sst39sf020.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __SST39SF020_H__
#define __SST39SF020_H__ 1
extern int probe_39sf020 (struct flashchip * flash);
extern int erase_39sf020 (struct flashchip * flash);
extern int write_39sf020 (struct flashchip * flash, unsigned char * buf);
#endif /* !__SST39SF020_H__ */

16
w49f002u.c
View File

@ -25,13 +25,15 @@
* $Id * $Id
*/ */
#include <stdio.h>
#include "flash.h" #include "flash.h"
#include "jedec.h" #include "jedec.h"
#include "w49f002u.h"
int probe_49f002 (struct flashchip * flash) int probe_49f002 (struct flashchip * flash)
{ {
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
unsigned char id1, id2, id3; unsigned char id1, id2;
*(bios + 0x5555) = 0xAA; *(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(bios + 0x2AAA) = 0x55;
@ -56,7 +58,6 @@ int erase_49f002 (struct flashchip * flash)
{ {
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
again:
*(bios + 0x5555) = 0xAA; *(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0x80; *(bios + 0x5555) = 0x80;
@ -80,14 +81,15 @@ int erase_49f002 (struct flashchip * flash)
*(bios + 0x3bfff) = 0x30; *(bios + 0x3bfff) = 0x30;
#endif #endif
return(0);
} }
int write_49f002 (struct flashchip * flash, char * buf) int write_49f002 (struct flashchip * flash, unsigned char * buf)
{ {
int i; int i;
int total_size = flash->total_size * 1024, page_size = flash->page_size; int total_size = flash->total_size * 1024;
volatile char * bios = flash->virt_addr; volatile char * bios = flash->virt_addr;
volatile char * dst = bios, * src = buf; volatile char * dst = bios;
*bios = 0xF0; *bios = 0xF0;
myusec_delay(10); myusec_delay(10);
@ -98,7 +100,7 @@ int write_49f002 (struct flashchip * flash, char * buf)
for (i = 0; i < total_size; i++) { for (i = 0; i < total_size; i++) {
/* write to the sector */ /* write to the sector */
if ((i & 0xfff) == 0) if ((i & 0xfff) == 0)
printf ("address: 0x%08lx", i); printf ("address: 0x%08lx", (unsigned long)i);
*(bios + 0x5555) = 0xAA; *(bios + 0x5555) = 0xAA;
*(bios + 0x2AAA) = 0x55; *(bios + 0x2AAA) = 0x55;
*(bios + 0x5555) = 0xA0; *(bios + 0x5555) = 0xA0;
@ -112,4 +114,6 @@ int write_49f002 (struct flashchip * flash, char * buf)
} }
#endif #endif
printf("\n"); printf("\n");
return(0);
} }

8
w49f002u.h Normal file
View File

@ -0,0 +1,8 @@
#ifndef __W49F002U_H__
#define __W49F002U_H__ 1
extern int probe_49f002 (struct flashchip * flash);
extern int erase_49f002 (struct flashchip * flash);
extern int write_49f002 (struct flashchip * flash, unsigned char * buf);
#endif /* !__W49F002U_H__ */