riscv: sifive_u: Change UART node name in device tree

OpenSBI for fu540 does DT fix up (see fu540_modify_dt()) by updating
chosen "stdout-path" to point to "/soc/serial@...", and U-Boot will
use this information to locate the serial node and probe its driver.
However currently we generate the UART node name as "/soc/uart@...",
causing U-Boot fail to find the serial node in DT.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index b66eaef..24f8c19 100644 (file)
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -286,7 +286,7 @@ static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap,
     uartclk_phandle = qemu_fdt_get_phandle(fdt, nodename);
     g_free(nodename);
 
-    nodename = g_strdup_printf("/soc/uart@%lx",
+    nodename = g_strdup_printf("/soc/serial@%lx",
         (long)memmap[SIFIVE_U_UART0].base);
     qemu_fdt_add_subnode(fdt, nodename);
     qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0");