Add a qdev property for endianness, so memory region setup can be done
in realize.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 hw/char/serial.c         | 2 ++
 include/hw/char/serial.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/hw/char/serial.c b/hw/char/serial.c
index 225f09f30f..1c16fed4d1 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -1080,6 +1080,7 @@ SerialMM *serial_mm_init(MemoryRegion *address_space,
     qdev_prop_set_uint32(DEVICE(s), "baudbase", baudbase);
     qdev_prop_set_chr(DEVICE(s), "chardev", chr);
     qdev_set_legacy_instance_id(DEVICE(s), base, 2);
+    qdev_prop_set_uint8(DEVICE(self), "endianness", end);
 
     qdev_init_nofail(DEVICE(s));
     qdev_init_nofail(DEVICE(smm));
@@ -1106,6 +1107,7 @@ static Property serial_mm_properties[] = {
      * previous one.
      */
     DEFINE_PROP_UINT8("regshift", SerialMM, regshift, 0),
+    DEFINE_PROP_UINT8("endianness", SerialMM, endianness, DEVICE_NATIVE_ENDIAN),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/char/serial.h b/include/hw/char/serial.h
index eaeda62698..d586924937 100644
--- a/include/hw/char/serial.h
+++ b/include/hw/char/serial.h
@@ -85,6 +85,7 @@ typedef struct SerialMM {
     SerialState serial;
 
     uint8_t regshift;
+    uint8_t endianness;
 } SerialMM;
 
 extern const VMStateDescription vmstate_serial;
-- 
2.24.0