omap_tap: convert to memory API

Signed-off-by: NAvi Kivity <avi@redhat.com>

hw/omap.h

@@ -827,6 +827,7 @@ struct omap_mpu_state_s {
     MemoryRegion pwl_iomem;
     MemoryRegion pwt_iomem;
     MemoryRegion mpui_io_iomem;
+    MemoryRegion tap_iomem;
     MemoryRegion imif_ram;
     MemoryRegion emiff_ram;
 

hw/omap_tap.c

@@ -22,10 +22,15 @@
 #include "omap.h"
 
 /* TEST-Chip-level TAP */
-static uint32_t omap_tap_read(void *opaque, target_phys_addr_t addr)
+static uint64_t omap_tap_read(void *opaque, target_phys_addr_t addr,
+                              unsigned size)
 {
     struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
 
+    if (size != 4) {
+        return omap_badwidth_read32(opaque, addr);
+    }
+
     switch (addr) {
     case 0x204:	/* IDCODE_reg */
         switch (s->mpu_model) {
@@ -87,27 +92,25 @@ static uint32_t omap_tap_read(void *opaque, target_phys_addr_t addr)
 }
 
 static void omap_tap_write(void *opaque, target_phys_addr_t addr,
-                uint32_t value)
+                           uint64_t value, unsigned size)
 {
+    if (size != 4) {
+        return omap_badwidth_write32(opaque, addr, value);
+    }
+
     OMAP_BAD_REG(addr);
 }
 
-static CPUReadMemoryFunc * const omap_tap_readfn[] = {
-    omap_badwidth_read32,
-    omap_badwidth_read32,
-    omap_tap_read,
-};
-
-static CPUWriteMemoryFunc * const omap_tap_writefn[] = {
-    omap_badwidth_write32,
-    omap_badwidth_write32,
-    omap_tap_write,
+static const MemoryRegionOps omap_tap_ops = {
+    .read = omap_tap_read,
+    .write = omap_tap_write,
+    .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
 void omap_tap_init(struct omap_target_agent_s *ta,
                 struct omap_mpu_state_s *mpu)
 {
-    omap_l4_attach(ta, 0, cpu_register_io_memory(
-                            omap_tap_readfn, omap_tap_writefn, mpu,
-                            DEVICE_NATIVE_ENDIAN));
+    memory_region_init_io(&mpu->tap_iomem, &omap_tap_ops, mpu, "omap.tap",
+                          omap_l4_region_size(ta, 0));
+    omap_l4_attach_region(ta, 0, &mpu->tap_iomem);
 }