hw/openrisc: Mark devices as big-endian

The openrisc little-endian control is in a control register:
SR[LEE] (which we do not implement at present).

These devices are only used by the OpenRISC target, which is
only built as big-endian. Therefore the DEVICE_NATIVE_ENDIAN
definition expand to DEVICE_BIG_ENDIAN (besides, the
DEVICE_LITTLE_ENDIAN case isn't tested). Simplify directly
using DEVICE_BIG_ENDIAN.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20241106184612.71897-5-philmd@linaro.org>

hw/openrisc/openrisc_sim.c

@@ -266,7 +266,7 @@ static void openrisc_sim_serial_init(Or1ksimState *state, hwaddr base,
     }
     serial_mm_init(get_system_memory(), base, 0, serial_irq, 115200,
                    serial_hd(uart_idx),
-                   DEVICE_NATIVE_ENDIAN);
+                   DEVICE_BIG_ENDIAN);
 
     /* Add device tree node for serial. */
     nodename = g_strdup_printf("/serial@%" HWADDR_PRIx, base);

hw/openrisc/virt.c

@@ -236,7 +236,7 @@ static void openrisc_virt_serial_init(OR1KVirtState *state, hwaddr base,
     qemu_irq serial_irq = get_per_cpu_irq(cpus, num_cpus, irq_pin);
 
     serial_mm_init(get_system_memory(), base, 0, serial_irq, 115200,
-                   serial_hd(0), DEVICE_NATIVE_ENDIAN);
+                   serial_hd(0), DEVICE_BIG_ENDIAN);
 
     /* Add device tree node for serial. */
     nodename = g_strdup_printf("/serial@%" HWADDR_PRIx, base);