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Add dedicated chip erase function for SST49LF040

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Corresponding to flashrom svn r31 and coreboot v2 svn r1852.
This commit is contained in:
Ollie Lho
2005-01-11 02:48:22 +00:00
parent efa28589b1
commit a1439cfdee
3 changed files with 19 additions and 3 deletions
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19
sst49lf040.c
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@ -30,6 +30,21 @@
#include "jedec.h"
#include "sst49lf040.h"
int erase_49lf040(struct flashchip *flash)
{
int i;
int total_size = flash->total_size * 1024;
int page_size = flash->page_size;
volatile char *bios = flash->virt_addr;
for (i = 0; i < total_size / page_size; i++) {
/* Chip erase only works in parallel programming mode
* for the 49lf040. Use sector-erase instead */
erase_sector_jedec(bios, i * page_size);
}
return 0;
}
int write_49lf040(struct flashchip *flash, unsigned char *buf)
{
int i;
@ -40,8 +55,8 @@ int write_49lf040(struct flashchip *flash, unsigned char *buf)
printf("Programming Page: ");
for (i = 0; i < total_size / page_size; i++) {
/* erase the page before programming
* Chip erase only works in parallel programming mode for the 49lf040.
* Use sector-erase instead */
* Chip erase only works in parallel programming mode
* for the 49lf040. Use sector-erase instead */
erase_sector_jedec(bios, i * page_size);
/* write to the sector */