serial: ns16550: Correct the base address type

Currently ns16550_serial_assign_base() treats the argument 'base'
with type `ulong`. This is incorrect because the base address was
obtained from device tree with type `fdt_addr_t` that can represent
a physical address larger than 32-bit in a 32-bit system.

Fixes: 9e6ce62190b7 ("serial: ns16550: Fix ordering of getting base address")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index b9e99ba..1377c9a 100644 (file)
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -483,7 +483,7 @@ static int ns16550_serial_getinfo(struct udevice *dev,
        return 0;
 }
 
-static int ns16550_serial_assign_base(struct ns16550_plat *plat, ulong base)
+static int ns16550_serial_assign_base(struct ns16550_plat *plat, fdt_addr_t base)
 {
        if (base == FDT_ADDR_T_NONE)
                return -EINVAL;