Big endian byte swap for serial mmapped interface.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2946 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 18 insertions, 4 deletions

diff --git a/hw/serial.c b/hw/serial.c
index e0ff3a72c0..088886258e 100644
--- a/hw/serial.c
+++ b/hw/serial.c
@@ -384,30 +384,44 @@ void serial_mm_writeb (void *opaque,
 uint32_t serial_mm_readw (void *opaque, target_phys_addr_t addr)
 {
     SerialState *s = opaque;
+    uint32_t val;
 
-    return serial_ioport_read(s, (addr - s->base) >> s->it_shift) & 0xFFFF;
+    val = serial_ioport_read(s, (addr - s->base) >> s->it_shift) & 0xFFFF;
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap16(val);
+#endif
+    return val;
 }
 
 void serial_mm_writew (void *opaque,
                        target_phys_addr_t addr, uint32_t value)
 {
     SerialState *s = opaque;
-
+#ifdef TARGET_WORDS_BIGENDIAN
+    value = bswap16(value);
+#endif
     serial_ioport_write(s, (addr - s->base) >> s->it_shift, value & 0xFFFF);
 }
 
 uint32_t serial_mm_readl (void *opaque, target_phys_addr_t addr)
 {
     SerialState *s = opaque;
+    uint32_t val;
 
-    return serial_ioport_read(s, (addr - s->base) >> s->it_shift);
+    val = serial_ioport_read(s, (addr - s->base) >> s->it_shift);
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap32(val);
+#endif
+    return val;
 }
 
 void serial_mm_writel (void *opaque,
                        target_phys_addr_t addr, uint32_t value)
 {
     SerialState *s = opaque;
-
+#ifdef TARGET_WORDS_BIGENDIAN
+    value = bswap32(value);
+#endif
     serial_ioport_write(s, (addr - s->base) >> s->it_shift, value);
 }