Commit 76540ebd46 for qemu.org

commit 76540ebd46d04a7f3f8e43e0e2567c91a98d1991
Author: pillow <waysorrypub@gmail.com>
Date:   Sun Oct 25 21:55:58 2026 +0800

    hw/loongarch/virt: Fix UART clock frequency in FDT

    The UART uses baudbase = 115200, corresponding to an input clock of
    1843200 Hz. Update the FDT clock-frequency property to match the model.

    Signed-off-by: pillow <waysorrypub@gmail.com>
    Signed-off-by: Bibo Mao <maobibo@loongson.cn>
    Reviewed-by: Bibo Mao <maobibo@loongson.cn>

diff --git a/hw/loongarch/virt-fdt-build.c b/hw/loongarch/virt-fdt-build.c
index c6f5d022c5..7be71e2d7a 100644
--- a/hw/loongarch/virt-fdt-build.c
+++ b/hw/loongarch/virt-fdt-build.c
@@ -474,7 +474,7 @@ static void fdt_add_uart_node(LoongArchVirtMachineState *lvms,
     qemu_fdt_add_subnode(ms->fdt, nodename);
     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_cell(ms->fdt, nodename, "clock-frequency", 1843200);
     if (chosen) {
         qemu_fdt_setprop_string(ms->fdt, "/chosen", "stdout-path", nodename);
     }