diff options
| -rw-r--r-- | hw/m48t59.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/hw/m48t59.c b/hw/m48t59.c index 9eb1a0968a..9e8e692669 100644 --- a/hw/m48t59.c +++ b/hw/m48t59.c @@ -27,6 +27,7 @@ #include "sysemu.h" #include "sysbus.h" #include "isa.h" +#include "exec-memory.h" //#define DEBUG_NVRAM @@ -80,6 +81,7 @@ typedef struct M48t59ISAState { typedef struct M48t59SysBusState { SysBusDevice busdev; M48t59State state; + MemoryRegion io; } M48t59SysBusState; /* Fake timer functions */ @@ -481,7 +483,8 @@ void m48t59_toggle_lock (void *opaque, int lock) } /* IO access to NVRAM */ -static void NVRAM_writeb (void *opaque, uint32_t addr, uint32_t val) +static void NVRAM_writeb(void *opaque, hwaddr addr, uint64_t val, + unsigned size) { M48t59State *NVRAM = opaque; @@ -504,7 +507,7 @@ static void NVRAM_writeb (void *opaque, uint32_t addr, uint32_t val) } } -static uint32_t NVRAM_readb (void *opaque, uint32_t addr) +static uint64_t NVRAM_readb(void *opaque, hwaddr addr, unsigned size) { M48t59State *NVRAM = opaque; uint32_t retval; @@ -626,13 +629,14 @@ 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, + .read = NVRAM_readb, + .write = NVRAM_writeb, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, + .endianness = DEVICE_LITTLE_ENDIAN, }; /* Initialisation routine */ @@ -653,9 +657,9 @@ M48t59State *m48t59_init(qemu_irq IRQ, hwaddr mem_base, d = FROM_SYSBUS(M48t59SysBusState, s); state = &d->state; sysbus_connect_irq(s, 0, IRQ); + memory_region_init_io(&d->io, &m48t59_io_ops, state, "m48t59", 4); if (io_base != 0) { - register_ioport_read(io_base, 0x04, 1, NVRAM_readb, state); - register_ioport_write(io_base, 0x04, 1, NVRAM_writeb, state); + memory_region_add_subregion(get_system_io(), io_base, &d->io); } if (mem_base != 0) { sysbus_mmio_map(s, 0, mem_base); |