Change ioremap() to map_physmem(), as it is more used in u-boot.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Marek Vasut <marex@denx.de>
 {
        struct altera_timer_platdata *plat = dev_get_platdata(dev);
 
-       plat->regs = ioremap(dev_get_addr(dev),
-               sizeof(struct altera_timer_regs));
+       plat->regs = map_physmem(dev_get_addr(dev),
+                                sizeof(struct altera_timer_regs),
+                                MAP_NOCACHE);
        plat->clock_rate = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
                "clock-frequency", 0);