/* register access controls */
#define portaddr(port, reg) ((port)->membase + (reg))
+#define portaddrl(port, reg) ((unsigned long *)((port)->membase + (reg)))
#define rd_regb(port, reg) (__raw_readb(portaddr(port, reg)))
#define rd_regl(port, reg) (__raw_readl(portaddr(port, reg)))