diff options
Diffstat (limited to 'stm50flw0x0x.c')
| -rw-r--r-- | stm50flw0x0x.c | 45 |
1 files changed, 3 insertions, 42 deletions
diff --git a/stm50flw0x0x.c b/stm50flw0x0x.c index 3a90d6b..8cbafe2 100644 --- a/stm50flw0x0x.c +++ b/stm50flw0x0x.c @@ -42,49 +42,10 @@ void protect_stm50flw0x0x(chipaddr bios) int probe_stm50flw0x0x(struct flashchip *flash) { - chipaddr bios = flash->virtual_memory; - uint8_t id1, id2; - uint32_t largeid1, largeid2; - - /* Issue JEDEC Product ID Entry command */ - chip_writeb(0xAA, bios + 0x5555); - programmer_delay(10); - chip_writeb(0x55, bios + 0x2AAA); - programmer_delay(10); - chip_writeb(0x90, bios + 0x5555); - programmer_delay(40); - - /* Read product ID */ - id1 = chip_readb(bios); - id2 = chip_readb(bios + 0x01); - largeid1 = id1; - largeid2 = id2; - - /* Check if it is a continuation ID, this should be a while loop. */ - if (id1 == 0x7F) { - largeid1 <<= 8; - id1 = chip_readb(bios + 0x100); - largeid1 |= id1; - } - if (id2 == 0x7F) { - largeid2 <<= 8; - id2 = chip_readb(bios + 0x101); - largeid2 |= id2; - } - - /* Issue JEDEC Product ID Exit command */ - chip_writeb(0xAA, bios + 0x5555); - programmer_delay(10); - chip_writeb(0x55, bios + 0x2AAA); - programmer_delay(10); - chip_writeb(0xF0, bios + 0x5555); - programmer_delay(40); - - printf_debug("%s: id1 0x%02x, id2 0x%02x\n", __func__, largeid1, - largeid2); + int result = probe_jedec(flash); - if (largeid1 != flash->manufacture_id || largeid2 != flash->model_id) - return 0; + if (!result) + return result; map_flash_registers(flash); |
