From a1439cfdee780d20eafb787cfef2abae9eea00b1 Mon Sep 17 00:00:00 2001 From: Ollie Lho Date: Tue, 11 Jan 2005 02:48:22 +0000 Subject: Add dedicated chip erase function for SST49LF040 Corresponding to flashrom svn r31 and coreboot v2 svn r1852. --- sst49lf040.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'sst49lf040.c') 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 */ -- cgit v1.2.3