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Consolidate more jedec standard code

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Corresponding to flashrom svn r15 and coreboot v2 svn r1457.
This commit is contained in:
Ollie Lho
2004-03-20 16:46:10 +00:00
parent 73eca80d9b
commit 761bf1bdb7
27 changed files with 762 additions and 695 deletions
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104
82802ab.c
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@ -47,10 +47,10 @@ void print_82802ab_status(unsigned char status)
printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
}
int probe_82802ab (struct flashchip * flash)
int probe_82802ab(struct flashchip *flash)
{
volatile unsigned char * bios = flash->virt_addr;
unsigned char id1, id2;
volatile unsigned char *bios = flash->virt_addr;
unsigned char id1, id2;
#if 0
*(volatile unsigned char *) (bios + 0x5555) = 0xAA;
@ -74,18 +74,18 @@ int probe_82802ab (struct flashchip * flash)
#endif
myusec_delay(10);
printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
if (id1 == flash->manufacture_id && id2 == flash->model_id) {
size_t size = flash->total_size * 1024;
// we need to mmap the write-protect space.
bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
flash->fd_mem, (off_t) (0 - 0x400000 - size));
if (bios == MAP_FAILED) {
bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
flash->fd_mem, (off_t) (0 - 0x400000 - size));
if (bios == MAP_FAILED) {
// it's this part but we can't map it ...
perror("Error MMAP /dev/mem");
exit(1);
}
perror("Error MMAP /dev/mem");
exit(1);
}
flash->virt_addr_2 = bios;
return 1;
@ -94,39 +94,39 @@ int probe_82802ab (struct flashchip * flash)
return 0;
}
unsigned char wait_82802ab(volatile unsigned char * bios)
unsigned char wait_82802ab(volatile unsigned char *bios)
{
unsigned char status;
unsigned char id1, id2;
*bios = 0x70;
if ((*bios & 0x80) == 0) { // it's busy
while ((*bios & 0x80) == 0)
;
if ((*bios & 0x80) == 0) { // it's busy
while ((*bios & 0x80) == 0);
}
status = *bios;
// put another command to get out of status register mode
*bios = 0x90;
myusec_delay(10);
id1 = *(volatile unsigned char *) bios;
id2 = *(volatile unsigned char *) (bios + 0x01);
// this is needed to jam it out of "read id" mode
*(volatile unsigned char *) (bios + 0x5555) = 0xAA;
*(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
*(volatile unsigned char *) (bios + 0x5555) = 0xF0;
return status;
}
int erase_82802ab_block(struct flashchip *flash, int offset)
{
volatile unsigned char * bios = flash->virt_addr + offset;
volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2;
volatile unsigned char *bios = flash->virt_addr + offset;
volatile unsigned char *wrprotect =
flash->virt_addr_2 + offset + 2;
unsigned char status;
// clear status register
@ -146,54 +146,56 @@ int erase_82802ab_block(struct flashchip *flash, int offset)
status = wait_82802ab(flash->virt_addr);
//print_82802ab_status(status);
printf("DONE BLOCK 0x%x\n", offset);
return(0);
return (0);
}
int erase_82802ab (struct flashchip * flash)
int erase_82802ab(struct flashchip *flash)
{
int i;
unsigned int total_size = flash->total_size * 1024;
printf("total_size is %d; flash->page_size is %d\n",
total_size, flash->page_size);
for(i = 0; i < total_size; i += flash->page_size)
printf("total_size is %d; flash->page_size is %d\n",
total_size, flash->page_size);
for (i = 0; i < total_size; i += flash->page_size)
erase_82802ab_block(flash, i);
printf("DONE ERASE\n");
return(0);
return (0);
}
void write_page_82802ab (volatile char * bios, char * src, volatile char * dst,
int page_size)
{
int i;
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
*dst = 0x40;
*dst++ = *src++;
wait_82802ab(bios);
}
}
int write_82802ab (struct flashchip * flash, unsigned char * buf)
void write_page_82802ab(volatile char *bios, char *src, volatile char *dst,
int page_size)
{
int i;
int total_size = flash->total_size *1024, page_size = flash->page_size;
volatile unsigned char * bios = flash->virt_addr;
erase_82802ab (flash);
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */
*dst = 0x40;
*dst++ = *src++;
wait_82802ab(bios);
}
}
int write_82802ab(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;
erase_82802ab(flash);
if (*bios != 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_82802ab(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("Programming Page: ");
for (i = 0; i < total_size / page_size; i++) {
printf("%04d at address: 0x%08x", i, i * page_size);
write_page_82802ab(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_82802ab (bios);
return(0);
protect_82802ab(bios);
return (0);
}