diff options
Diffstat (limited to 'hw/block/pflash_cfi02.c')
| -rw-r--r-- | hw/block/pflash_cfi02.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/block/pflash_cfi02.c b/hw/block/pflash_cfi02.c index e64dc69c6c..4be3837be5 100644 --- a/hw/block/pflash_cfi02.c +++ b/hw/block/pflash_cfi02.c @@ -281,11 +281,13 @@ static void pflash_write(void *opaque, hwaddr offset, uint64_t value, } offset &= pfl->chip_len - 1; - boff = offset & (pfl->sector_len - 1); + boff = offset; if (pfl->width == 2) boff = boff >> 1; else if (pfl->width == 4) boff = boff >> 2; + /* Only the least-significant 11 bits are used in most cases. */ + boff &= 0x7FF; switch (pfl->wcycle) { case 0: /* Set the device in I/O access mode if required */ @@ -538,6 +540,10 @@ static void pflash_cfi02_realize(DeviceState *dev, Error **errp) } } + /* Only 11 bits are used in the comparison. */ + pfl->unlock_addr0 &= 0x7FF; + pfl->unlock_addr1 &= 0x7FF; + pflash_setup_mappings(pfl); pfl->rom_mode = 1; sysbus_init_mmio(SYS_BUS_DEVICE(dev), &pfl->mem); |