hw/loongarch: Add default stdout uart in fdt

Add "chosen" subnode into LoongArch fdt, and set it's
"stdout-path" prop to uart node.

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20221115114923.3372414-1-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>

diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 5136940b0b46498f46f3422a359a169428169ad5..b9c18ee517ad70c99991fd273534699f04b826d4 100644 (file)
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -69,6 +69,7 @@ static void fdt_add_uart_node(LoongArchMachineState *lams)
     qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", "ns16550a");
     qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0x0, base, 0x0, size);
     qemu_fdt_setprop_cell(ms->fdt, nodename, "clock-frequency", 100000000);
+    qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
     g_free(nodename);
 }
 
@@ -87,6 +88,7 @@ static void create_fdt(LoongArchMachineState *lams)
                             "linux,dummy-loongson3");
     qemu_fdt_setprop_cell(ms->fdt, "/", "#address-cells", 0x2);
     qemu_fdt_setprop_cell(ms->fdt, "/", "#size-cells", 0x2);
+    qemu_fdt_add_subnode(ms->fdt, "/chosen");
 }
 
 static void fdt_add_cpu_nodes(const LoongArchMachineState *lams)