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more jedec standard consolidatation. 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1464 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo 2004-03-22 22:19:17 +00:00
parent 2619721692
commit addc53e56d
2 changed files with 38 additions and 32 deletions
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68
util/flash_and_burn/jedec.c
View File

@ -139,39 +139,46 @@ void write_page_jedec(volatile char *bios, char *src, volatile char *dst,
toggle_ready_jedec(dst - 1);
}
int write_sector_jedec(volatile char *bios,
unsigned char *src,
int wirte_byte_program_jedec(volatile unsigned char *bios, unsigned char *src,
volatile unsigned char *dst)
{
volatile unsigned char *Temp;
if (*dst != 0xff) {
printf("FATAL: dst %p not erased (val 0x%x)\n",
dst, *dst);
return (-1);
}
/* transfer data from source to destination */
if (*src == 0xFF) {
dst++, src++;
/* If the data is 0xFF, don't program it */
return 0;
}
/* Issue JEDEC Byte Program command */
Temp = bios + 0x5555;
*Temp = 0xAA;
Temp = bios + 0x2AAA;
*Temp = 0x55;
Temp = bios + 0x5555;
*Temp = 0xA0;
*dst = *src;
toggle_ready_jedec(bios);
if (*dst != *src)
printf("BAD! dst 0x%lx val 0x%x src 0x%x\n",
(unsigned long) dst, *dst, *src);
dst++, src++;
return 0;
}
int write_sector_jedec(volatile unsigned char *bios, unsigned char *src,
volatile unsigned char *dst,
unsigned int page_size)
{
int i;
volatile char *Temp;
for (i = 0; i < page_size; i++) {
if (*dst != 0xff) {
printf("FATAL: dst %p not erased (val 0x%x)\n",
dst, *dst);
return (-1);
}
/* transfer data from source to destination */
if (*src == 0xFF) {
dst++, src++;
/* If the data is 0xFF, don't program it */
continue;
}
/* Issue JEDEC Byte Program command */
Temp = bios + 0x5555;
*Temp = 0xAA;
Temp = bios + 0x2AAA;
*Temp = 0x55;
Temp = bios + 0x5555;
*Temp = 0xA0;
*dst = *src;
toggle_ready_jedec(bios);
if (*dst != *src)
printf("BAD! dst 0x%lx val 0x%x src 0x%x\n",
(unsigned long) dst, *dst, *src);
dst++, src++;
wirte_byte_program_jedec(bios, src, dst);
}
return (0);
@ -180,8 +187,8 @@ int write_sector_jedec(volatile char *bios,
int write_jedec(struct flashchip *flash, unsigned char *buf)
{
int i;
int total_size = flash->total_size * 1024, page_size =
flash->page_size;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
volatile unsigned char *bios = flash->virt_addr;
erase_chip_jedec(flash);
@ -194,8 +201,7 @@ int write_jedec(struct flashchip *flash, unsigned char *buf)
printf("%04d at address: 0x%08x", i, i * page_size);
write_page_jedec(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("\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_jedec(bios);

2
util/flash_and_burn/jedec.h
View File

@ -5,7 +5,7 @@ extern int probe_jedec(struct flashchip *flash);
extern int erase_chip_jedec(struct flashchip *flash);
extern int write_jedec(struct flashchip *flash, unsigned char *buf);
extern int erase_sector_jedec(volatile char *bios, unsigned int page);
extern int write_sector_jedec(volatile char *bios,
extern int write_sector_jedec(volatile unsigned char *bios,
unsigned char *src,
volatile unsigned char *dst,
unsigned int page_size);