diff options
Diffstat (limited to 'm29f400bt.c')
| -rw-r--r-- | m29f400bt.c | 65 |
1 files changed, 34 insertions, 31 deletions
diff --git a/m29f400bt.c b/m29f400bt.c index f664b47..c9d8a40 100644 --- a/m29f400bt.c +++ b/m29f400bt.c @@ -28,24 +28,25 @@ functions. */ /* chunksize is 1 */ -int write_m29f400bt(struct flashctx *flash, uint8_t *src, unsigned int start, unsigned int len) +int write_m29f400bt(struct flashctx *flash, uint8_t *src, unsigned int start, + unsigned int len) { int i; chipaddr bios = flash->virtual_memory; chipaddr dst = flash->virtual_memory + start; for (i = 0; i < len; i++) { - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0xA0, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0xA0, bios + 0xAAA); /* transfer data from source to destination */ - chip_writeb(*src, dst); - toggle_ready_jedec(dst); + chip_writeb(flash, *src, dst); + toggle_ready_jedec(flash, 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); + (dst - bios), chip_readb(flash, dst), *src); #endif dst++; src++; @@ -60,21 +61,21 @@ int probe_m29f400bt(struct flashctx *flash) chipaddr bios = flash->virtual_memory; uint8_t id1, id2; - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x90, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0x90, bios + 0xAAA); programmer_delay(10); - id1 = chip_readb(bios); + id1 = chip_readb(flash, bios); /* The data sheet says id2 is at (bios + 0x01) and id2 listed in * flash.h does not match. It should be possible to use JEDEC probe. */ - id2 = chip_readb(bios + 0x02); + id2 = chip_readb(flash, bios + 0x02); - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0xF0, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0xF0, bios + 0xAAA); programmer_delay(10); @@ -90,42 +91,44 @@ int erase_m29f400bt(struct flashctx *flash) { chipaddr bios = flash->virtual_memory; - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x80, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0x80, bios + 0xAAA); - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x10, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0x10, bios + 0xAAA); programmer_delay(10); - toggle_ready_jedec(bios); + toggle_ready_jedec(flash, bios); /* FIXME: Check the status register for errors. */ return 0; } -int block_erase_m29f400bt(struct flashctx *flash, unsigned int start, unsigned int len) +int block_erase_m29f400bt(struct flashctx *flash, unsigned int start, + unsigned int len) { chipaddr bios = flash->virtual_memory; chipaddr dst = bios + start; - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x80, bios + 0xAAA); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0x80, bios + 0xAAA); - chip_writeb(0xAA, bios + 0xAAA); - chip_writeb(0x55, bios + 0x555); - chip_writeb(0x30, dst); + chip_writeb(flash, 0xAA, bios + 0xAAA); + chip_writeb(flash, 0x55, bios + 0x555); + chip_writeb(flash, 0x30, dst); programmer_delay(10); - toggle_ready_jedec(bios); + toggle_ready_jedec(flash, bios); /* FIXME: Check the status register for errors. */ return 0; } -int block_erase_chip_m29f400bt(struct flashctx *flash, unsigned int address, unsigned int blocklen) +int block_erase_chip_m29f400bt(struct flashctx *flash, unsigned int address, + unsigned int blocklen) { if ((address != 0) || (blocklen != flash->total_size * 1024)) { msg_cerr("%s called with incorrect arguments\n", |
