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| author | Ollie Lho <ollie@sis.com.tw> | 2005-01-11 02:48:22 +0000 |
|---|---|---|
| committer | Ollie Lho <ollie@sis.com.tw> | 2005-01-11 02:48:22 +0000 |
| commit | a1439cfdee780d20eafb787cfef2abae9eea00b1 (patch) | |
| tree | 606d368c9e428ab5d10ef1e4b4718a0aaa360163 /sst49lf040.c | |
| parent | efa28589b1c2c402e62c8d5b1e32e5e45b164c2d (diff) | |
| download | flashrom-a1439cfdee780d20eafb787cfef2abae9eea00b1.tar.gz flashrom-a1439cfdee780d20eafb787cfef2abae9eea00b1.tar.bz2 flashrom-a1439cfdee780d20eafb787cfef2abae9eea00b1.zip | |
Add dedicated chip erase function for SST49LF040
Corresponding to flashrom svn r31 and coreboot v2 svn r1852.
Diffstat (limited to 'sst49lf040.c')
| -rw-r--r-- | sst49lf040.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/sst49lf040.c b/sst49lf040.c index 624a8655e..f19b91e1c 100644 --- a/sst49lf040.c +++ b/sst49lf040.c @@ -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 */ |