diff options
Diffstat (limited to 'util/flashrom/82802ab.c')
| -rw-r--r-- | util/flashrom/82802ab.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/util/flashrom/82802ab.c b/util/flashrom/82802ab.c index fceb715f83..9512c67a4f 100644 --- a/util/flashrom/82802ab.c +++ b/util/flashrom/82802ab.c @@ -48,7 +48,8 @@ void print_82802ab_status(uint8_t status) int probe_82802ab(struct flashchip *flash) { - volatile uint8_t *bios = flash->virt_addr; + volatile uint8_t *bios = flash->virtual_memory; + volatile uint8_t *registers; uint8_t id1, id2; #if 0 @@ -65,28 +66,28 @@ int probe_82802ab(struct flashchip *flash) id1 = *(volatile uint8_t *)bios; id2 = *(volatile uint8_t *)(bios + 0x01); -#if 1 + /* Leave ID mode */ *(volatile uint8_t *)(bios + 0x5555) = 0xAA; *(volatile uint8_t *)(bios + 0x2AAA) = 0x55; *(volatile uint8_t *)(bios + 0x5555) = 0xF0; -#endif myusec_delay(10); printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2); if (id1 == flash->manufacture_id && id2 == flash->model_id) { size_t size = flash->total_size * 1024; + // we need to mmap the write-protect space. - bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + registers = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, (off_t) (0 - 0x400000 - size)); - if (bios == MAP_FAILED) { + if (registers == MAP_FAILED) { // it's this part but we can't map it ... perror("Error MMAP memory using " MEM_DEV); exit(1); } - flash->virt_addr_2 = bios; + flash->virtual_registers = registers; return 1; } @@ -123,8 +124,8 @@ uint8_t wait_82802ab(volatile uint8_t *bios) } int erase_82802ab_block(struct flashchip *flash, int offset) { - volatile uint8_t *bios = flash->virt_addr + offset; - volatile uint8_t *wrprotect = flash->virt_addr_2 + offset + 2; + volatile uint8_t *bios = flash->virtual_memory + offset; + volatile uint8_t *wrprotect = flash->virtual_registers + offset + 2; uint8_t status; // clear status register @@ -141,7 +142,7 @@ int erase_82802ab_block(struct flashchip *flash, int offset) *(volatile uint8_t *)(bios) = 0xd0; myusec_delay(10); // now let's see what the register is - status = wait_82802ab(flash->virt_addr); + status = wait_82802ab(flash->virtual_memory); //print_82802ab_status(status); printf("DONE BLOCK 0x%x\n", offset); return (0); @@ -178,7 +179,7 @@ int write_82802ab(struct flashchip *flash, uint8_t *buf) int i; int total_size = flash->total_size * 1024; int page_size = flash->page_size; - volatile uint8_t *bios = flash->virt_addr; + volatile uint8_t *bios = flash->virtual_memory; erase_82802ab(flash); if (*bios != 0xff) { |