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SST49LF00[2,3,4] should use 

the same driver as 49LF008


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1812 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Li-Ta Lo 2004-12-07 03:15:51 +00:00
parent 3a81285409
commit bb7c3935c9
3 changed files with 49 additions and 51 deletions
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16
util/flash_and_burn/flash_rom.c
View File

@ -71,11 +71,11 @@ struct flashchip flashchips[] = {
{"SST49LF080A", SST_ID, SST_49LF080A, NULL, 1024, 4096, {"SST49LF080A", SST_ID, SST_49LF080A, NULL, 1024, 4096,
probe_jedec, erase_chip_jedec, write_49lf040,NULL}, probe_jedec, erase_chip_jedec, write_49lf040,NULL},
{"SST49LF002A", SST_ID, SST_49LF002A, NULL, 256, 4096, {"SST49LF002A", SST_ID, SST_49LF002A, NULL, 256, 4096,
probe_jedec, erase_chip_jedec, write_49lf040,NULL}, probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub, NULL},
{"SST49LF003A", SST_ID, SST_49LF003A, NULL, 384, 4096, {"SST49LF003A", SST_ID, SST_49LF003A, NULL, 384, 4096,
probe_jedec, erase_chip_jedec, write_49lf040,NULL}, probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub,NULL},
{"SST49LF004A", SST_ID, SST_49LF004A, NULL, 512, 4096, {"SST49LF004A", SST_ID, SST_49LF004A, NULL, 512, 4096,
probe_jedec, erase_chip_jedec, write_49lf040,NULL}, probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub,NULL},
{"SST49LF008A", SST_ID, SST_49LF008A, NULL, 1024, 4096, {"SST49LF008A", SST_ID, SST_49LF008A, NULL, 1024, 4096,
probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub, NULL}, probe_sst_fwhub, erase_sst_fwhub, write_sst_fwhub, NULL},
#endif #endif
@ -260,7 +260,6 @@ int main(int argc, char *argv[])
} }
} }
if (read_it && write_it) { if (read_it && write_it) {
printf("-r and -w are mutually exclusive\n"); printf("-r and -w are mutually exclusive\n");
usage(argv[0]); usage(argv[0]);
@ -285,8 +284,7 @@ int main(int argc, char *argv[])
printf("Part is %s\n", flash->name); printf("Part is %s\n", flash->name);
if (!filename) { if (!filename) {
printf printf("OK, only ENABLING flash write, but NOT FLASHING\n");
("OK, only ENABLING flash write, but NOT FLASHING\n");
return 0; return 0;
} }
size = flash->total_size * 1024; size = flash->total_size * 1024;
@ -304,7 +302,8 @@ int main(int argc, char *argv[])
flash->read(flash, buf); flash->read(flash, buf);
if (exclude_end_position - exclude_start_position > 0) if (exclude_end_position - exclude_start_position > 0)
memset(buf+exclude_start_position, 0, exclude_end_position-exclude_start_position); memset(buf+exclude_start_position, 0,
exclude_end_position-exclude_start_position);
fwrite(buf, sizeof(char), size, image); fwrite(buf, sizeof(char), size, image);
fclose(image); fclose(image);
@ -319,7 +318,8 @@ int main(int argc, char *argv[])
} }
if (exclude_end_position - exclude_start_position > 0) if (exclude_end_position - exclude_start_position > 0)
memcpy(buf+exclude_start_position, (const char *) flash->virt_addr+exclude_start_position, memcpy(buf+exclude_start_position,
(const char *) flash->virt_addr+exclude_start_position,
exclude_end_position-exclude_start_position); exclude_end_position-exclude_start_position);
exclude_start_page = exclude_start_position/flash->page_size; exclude_start_page = exclude_start_position/flash->page_size;

35
util/flash_and_burn/jedec.c
View File

@ -89,6 +89,7 @@ int erase_sector_jedec(volatile unsigned char *bios, unsigned int page)
return (0); return (0);
} }
int erase_block_jedec(volatile unsigned char *bios, unsigned int block) int erase_block_jedec(volatile unsigned char *bios, unsigned int block)
{ {
volatile unsigned char *Temp; volatile unsigned char *Temp;
@ -149,43 +150,45 @@ int erase_chip_jedec(struct flashchip *flash)
return (0); return (0);
} }
void write_page_write_jedec(volatile unsigned char *bios, unsigned char *src, int write_page_write_jedec(volatile unsigned char *bios, unsigned char *src,
volatile unsigned char *dst, int page_size) volatile unsigned char *dst, int page_size)
{ {
int i; int i;
/* Issue JEDEC Data Unprotect comand */ /* Issue JEDEC Data Unprotect comand */
*(volatile char *) (bios + 0x5555) = 0xAA; *(volatile unsigned char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55; *(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xA0; *(volatile unsigned char *) (bios + 0x5555) = 0xA0;
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */ /* transfer data from source to destination */
for (i = 0; i < page_size; i++) {
/* If the data is 0xFF, don't program it */
if (*src == 0xFF)
continue;
*dst++ = *src++; *dst++ = *src++;
} }
usleep(100);
toggle_ready_jedec(dst - 1); toggle_ready_jedec(dst - 1);
return 0;
} }
int write_byte_program_jedec(volatile unsigned char *bios, unsigned char *src, int write_byte_program_jedec(volatile unsigned char *bios, unsigned char *src,
volatile unsigned char *dst) volatile unsigned char *dst)
{ {
volatile unsigned char *Temp;
/* transfer data from source to destination */
if (*src == 0xFF) {
/* If the data is 0xFF, don't program it */ /* If the data is 0xFF, don't program it */
if (*src == 0xFF) {
return 0; return 0;
} }
/* Issue JEDEC Byte Program command */ /* Issue JEDEC Byte Program command */
Temp = bios + 0x5555; *(volatile unsigned char *) (bios + 0x5555) = 0xAA;
*Temp = 0xAA; *(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
Temp = bios + 0x2AAA; *(volatile unsigned char *) (bios + 0x5555) = 0xA0;
*Temp = 0x55;
Temp = bios + 0x5555; /* transfer data from source to destination */
*Temp = 0xA0;
*dst = *src; *dst = *src;
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return 0; return 0;

9
util/flash_and_burn/sst_fwhub.c
View File

@ -79,8 +79,6 @@ int probe_sst_fwhub(struct flashchip *flash)
myusec_delay(10); myusec_delay(10);
// we need to mmap the write-protect space. // we need to mmap the write-protect space.
bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
flash->fd_mem, (off_t) (0 - 0x400000 - size)); flash->fd_mem, (off_t) (0 - 0x400000 - size));
@ -96,9 +94,6 @@ int probe_sst_fwhub(struct flashchip *flash)
unsigned char wait_sst_fwhub(volatile unsigned char *bios) unsigned char wait_sst_fwhub(volatile unsigned char *bios)
{ {
toggle_ready_jedec(bios); toggle_ready_jedec(bios);
return 0; return 0;
} }
@ -138,8 +133,8 @@ int erase_sst_fwhub(struct flashchip *flash)
return (0); return (0);
} }
void write_page_sst_fwhub(volatile char *bios, char *src, volatile char *dst, void write_page_sst_fwhub(volatile char *bios, char *src,
int page_size) volatile char *dst, int page_size)
{ {
int i; int i;