-/*
- * Given a physical address and a length, return a virtual address
- * that can be used to access the memory range with the caching
- * properties specified by "flags".
- */
-#define MAP_NOCACHE (0)
-#define MAP_WRCOMBINE (0)
-#define MAP_WRBACK (0)
-#define MAP_WRTHROUGH (0)
-
-static inline void *
-map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+#define readb_be(addr) \
+ __raw_readb((__force unsigned *)(addr))
+#define readw_be(addr) \
+ be16_to_cpu(__raw_readw((__force unsigned *)(addr)))
+#define readl_be(addr) \
+ be32_to_cpu(__raw_readl((__force unsigned *)(addr)))
+#define readq_be(addr) \
+ be64_to_cpu(__raw_readq((__force unsigned *)(addr)))
+
+#define writeb_be(val, addr) \
+ __raw_writeb((val), (__force unsigned *)(addr))
+#define writew_be(val, addr) \
+ __raw_writew(cpu_to_be16((val)), (__force unsigned *)(addr))
+#define writel_be(val, addr) \
+ __raw_writel(cpu_to_be32((val)), (__force unsigned *)(addr))
+#define writeq_be(val, addr) \
+ __raw_writeq(cpu_to_be64((val)), (__force unsigned *)(addr))
+
+static inline void *phys_to_virt(phys_addr_t paddr)