1 files changed, 1 insertions, 1 deletions
diff --git a/hw/r2d.c b/hw/r2d.c
index 5b69c4f5d5..a529ab4a83 100644
--- a/hw/r2d.c
+++ b/hw/r2d.c
@@ -176,7 +176,7 @@ static qemu_irq *r2d_fpga_init(target_phys_addr_t base, qemu_irq irl)
 
     s->irl = irl;
 
-    iomemtype = cpu_register_io_memory(0, r2d_fpga_readfn,
+    iomemtype = cpu_register_io_memory(r2d_fpga_readfn,
 				       r2d_fpga_writefn, s);
     cpu_register_physical_memory(base, 0x40, iomemtype);
     return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);