diff options
Diffstat (limited to 'm29f400bt.c')
| -rw-r--r-- | m29f400bt.c | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/m29f400bt.c b/m29f400bt.c index d0b040de..2ca72e4e 100644 --- a/m29f400bt.c +++ b/m29f400bt.c @@ -22,9 +22,9 @@ void protect_m29f400bt(volatile uint8_t *bios) { - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0xA0; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0xA0, bios + 0xAAA); usleep(200); } @@ -35,18 +35,18 @@ void write_page_m29f400bt(volatile uint8_t *bios, uint8_t *src, int i; for (i = 0; i < page_size; i++) { - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0xA0; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0xA0, bios + 0xAAA); /* transfer data from source to destination */ - *dst = *src; + writeb(*src, dst); //*(volatile char *) (bios) = 0xF0; //usleep(5); toggle_ready_jedec(dst); printf ("Value in the flash at address %p = %#x, want %#x\n", - (uint8_t *) (dst - bios), *dst, *src); + (uint8_t *) (dst - bios), readb(dst), *src); dst++; src++; } @@ -57,21 +57,21 @@ int probe_m29f400bt(struct flashchip *flash) volatile uint8_t *bios = flash->virtual_memory; uint8_t id1, id2; - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0x90; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0x90, bios + 0xAAA); myusec_delay(10); - id1 = *(volatile uint8_t *)bios; + id1 = readb(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 = *(volatile uint8_t *)(bios + 0x02); + id2 = readb(bios + 0x02); - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0xF0; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0xF0, bios + 0xAAA); myusec_delay(10); @@ -87,13 +87,13 @@ int erase_m29f400bt(struct flashchip *flash) { volatile uint8_t *bios = flash->virtual_memory; - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0x80; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0x80, bios + 0xAAA); - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0x10; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0x10, bios + 0xAAA); myusec_delay(10); toggle_ready_jedec(bios); @@ -104,14 +104,14 @@ int erase_m29f400bt(struct flashchip *flash) int block_erase_m29f400bt(volatile uint8_t *bios, volatile uint8_t *dst) { - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; - *(volatile uint8_t *)(bios + 0xAAA) = 0x80; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); + writeb(0x80, bios + 0xAAA); - *(volatile uint8_t *)(bios + 0xAAA) = 0xAA; - *(volatile uint8_t *)(bios + 0x555) = 0x55; + writeb(0xAA, bios + 0xAAA); + writeb(0x55, bios + 0x555); //*(volatile uint8_t *) (bios + 0xAAA) = 0x10; - *dst = 0x30; + writeb(0x30, dst); myusec_delay(10); toggle_ready_jedec(bios); |