diff options
Diffstat (limited to 'hw/m48t59.c')
| -rw-r--r-- | hw/m48t59.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/hw/m48t59.c b/hw/m48t59.c index 0cc361eedc..f318e67919 100644 --- a/hw/m48t59.c +++ b/hw/m48t59.c @@ -73,6 +73,7 @@ struct M48t59State { typedef struct M48t59ISAState { ISADevice busdev; M48t59State state; + MemoryRegion io; } M48t59ISAState; typedef struct M48t59SysBusState { @@ -626,6 +627,15 @@ static void m48t59_reset_sysbus(DeviceState *d) m48t59_reset_common(NVRAM); } +static const MemoryRegionPortio m48t59_portio[] = { + {0, 4, 1, .read = NVRAM_readb, .write = NVRAM_writeb }, + PORTIO_END_OF_LIST(), +}; + +static const MemoryRegionOps m48t59_io_ops = { + .old_portio = m48t59_portio, +}; + /* Initialisation routine */ M48t59State *m48t59_init(qemu_irq IRQ, target_phys_addr_t mem_base, uint32_t io_base, uint16_t size, int type) @@ -669,10 +679,9 @@ M48t59State *m48t59_init_isa(uint32_t io_base, uint16_t size, int type) d = DO_UPCAST(M48t59ISAState, busdev, dev); s = &d->state; + memory_region_init_io(&d->io, &m48t59_io_ops, s, "m48t59", 4); if (io_base != 0) { - register_ioport_read(io_base, 0x04, 1, NVRAM_readb, s); - register_ioport_write(io_base, 0x04, 1, NVRAM_writeb, s); - isa_init_ioport_range(dev, io_base, 4); + isa_register_ioport(dev, &d->io, io_base); } return s; |