Currently, fdtdec_get_addr_size() does not support the address
translation, so it cannot handle device trees with non-straight
"ranges" properties.  (This would be a problem with DTS for UniPhier
ARMv8 SoCs.)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
 
 #include <linux/io.h>
 #include <linux/serial_reg.h>
+#include <linux/sizes.h>
 #include <asm/errno.h>
 #include <dm/device.h>
 #include <mapmem.h>
        struct uniphier_serial_private_data *priv = dev_get_priv(dev);
        struct uniphier_serial __iomem *port;
        fdt_addr_t base;
-       fdt_size_t size;
        u32 tmp;
 
-       base = fdtdec_get_addr_size(gd->fdt_blob, dev->of_offset, "reg", &size);
+       base = dev_get_addr(dev);
+       if (base == FDT_ADDR_T_NONE)
+               return -EINVAL;
 
-       port = map_sysmem(base, size);
+       port = map_sysmem(base, SZ_64);
        if (!port)
                return -ENOMEM;