Add moxie target code

Signed-off-by: Anthony Green <green@moxielogic.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/target-moxie/mmu.h b/target-moxie/mmu.h
new file mode 100644
index 0000000..e01ffc2
--- /dev/null
+++ b/target-moxie/mmu.h
@@ -0,0 +1,19 @@
+#define MOXIE_MMU_ERR_EXEC  0
+#define MOXIE_MMU_ERR_READ  1
+#define MOXIE_MMU_ERR_WRITE 2
+#define MOXIE_MMU_ERR_FLUSH 3
+
+typedef struct {
+    uint32_t phy;
+    uint32_t pfn;
+    int g:1;
+    int v:1;
+    int k:1;
+    int w:1;
+    int e:1;
+    int cause_op;
+} MoxieMMUResult;
+
+int moxie_mmu_translate(MoxieMMUResult *res,
+                        CPUMoxieState *env, uint32_t vaddr,
+                        int rw, int mmu_idx);