diff options
Diffstat (limited to 'm29f400bt.c')
| -rw-r--r-- | m29f400bt.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/m29f400bt.c b/m29f400bt.c index 3c00306..98e0762 100644 --- a/m29f400bt.c +++ b/m29f400bt.c @@ -27,12 +27,13 @@ 0x555 instead of 0x2AA. Do *not* blindly replace with standard JEDEC functions. */ -void write_page_m29f400bt(chipaddr bios, uint8_t *src, - chipaddr dst, int page_size) +int write_page_m29f400bt(struct flashchip *flash, uint8_t *src, int start, int len) { int i; + chipaddr bios = flash->virtual_memory; + chipaddr dst = flash->virtual_memory + start; - for (i = 0; i < page_size; i++) { + for (i = 0; i < len; i++) { chip_writeb(0xAA, bios + 0xAAA); chip_writeb(0x55, bios + 0x555); chip_writeb(0xA0, bios + 0xAAA); @@ -40,11 +41,17 @@ void write_page_m29f400bt(chipaddr bios, uint8_t *src, /* transfer data from source to destination */ chip_writeb(*src, dst); toggle_ready_jedec(dst); +#if 0 + /* We only want to print something in the error case. */ msg_cerr("Value in the flash at address 0x%lx = %#x, want %#x\n", (dst - bios), chip_readb(dst), *src); +#endif dst++; src++; } + + /* FIXME: Ignore errors for now. */ + return 0; } int probe_m29f400bt(struct flashchip *flash) @@ -138,20 +145,15 @@ int write_m29f400bt(struct flashchip *flash, uint8_t *buf) int i; int total_size = flash->total_size * 1024; int page_size = flash->page_size; - chipaddr bios = flash->virtual_memory; for (i = 0; i < (total_size / page_size) - 1; i++) { - write_page_m29f400bt(bios, buf + i * page_size, - bios + i * page_size, page_size); + write_page_m29f400bt(flash, buf + i * page_size, i * page_size, page_size); } - write_page_m29f400bt(bios, buf + 0x70000, bios + 0x70000, 32 * 1024); - - write_page_m29f400bt(bios, buf + 0x78000, bios + 0x78000, 8 * 1024); - - write_page_m29f400bt(bios, buf + 0x7a000, bios + 0x7a000, 8 * 1024); - - write_page_m29f400bt(bios, buf + 0x7c000, bios + 0x7c000, 16 * 1024); + write_page_m29f400bt(flash, buf + 0x70000, 0x70000, 32 * 1024); + write_page_m29f400bt(flash, buf + 0x78000, 0x78000, 8 * 1024); + write_page_m29f400bt(flash, buf + 0x7a000, 0x7a000, 8 * 1024); + write_page_m29f400bt(flash, buf + 0x7c000, 0x7c000, 16 * 1024); return 0; } |
