nds32: ftmac100 support cache enable.

[platform/kernel/u-boot.git] / arch / nds32 / include / asm / io.h

diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h
index 04708e9..e8ee961 100644 (file)
--- a/arch/nds32/include/asm/io.h
+++ b/arch/nds32/include/asm/io.h
@@ -48,6 +48,27 @@ static inline void sync(void)
 #define MAP_WRBACK     (0)
 #define MAP_WRTHROUGH  (0)
 
+#ifdef CONFIG_ARCH_MAP_SYSMEM
+static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
+{
+       if(paddr <PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE)
+       paddr = paddr | 0x40000000;
+       return (void *)(uintptr_t)paddr;
+}
+
+static inline void *unmap_sysmem(const void *vaddr)
+{
+       phys_addr_t paddr = (phys_addr_t)vaddr;
+       paddr = paddr & ~0x40000000;
+       return (void *)(uintptr_t)paddr;
+}
+
+static inline phys_addr_t map_to_sysmem(const void *ptr)
+{
+       return (phys_addr_t)(uintptr_t)ptr;
+}
+#endif
+
 static inline void *
 map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
 {
@@ -344,40 +365,6 @@ static inline void writesl(unsigned int *addr, const void * data, int longlen)
 #define insl_p(port, to, len)          insl(port, to, len)
 
 /*
- * ioremap and friends.
- *
- * ioremap takes a PCI memory address, as specified in
- * linux/Documentation/IO-mapping.txt.  If you want a
- * physical address, use __ioremap instead.
- */
-extern void *__ioremap(unsigned long offset, size_t size, unsigned long flags);
-extern void __iounmap(void *addr);
-
-/*
- * Generic ioremap support.
- *
- * Define:
- *  iomem_valid_addr(off,size)
- *  iomem_to_phys(off)
- */
-#ifdef iomem_valid_addr
-#define __arch_ioremap(off, sz, nocache)                               \
-({                                                                     \
-       unsigned long _off = (off), _size = (sz);                       \
-       void *_ret = (void *)0;                                         \
-       if (iomem_valid_addr(_off, _size))                              \
-               _ret = __ioremap(iomem_to_phys(_off), _size, 0);        \
-       _ret;                                                           \
-})
-
-#define __arch_iounmap __iounmap
-#endif
-
-#define ioremap(off, sz)               __arch_ioremap((off), (sz), 0)
-#define ioremap_nocache(off, sz)       __arch_ioremap((off), (sz), 1)
-#define iounmap(_addr)                 __arch_iounmap(_addr)
-
-/*
  * DMA-consistent mapping functions.  These allocate/free a region of
  * uncached, unwrite-buffered mapped memory space for use with DMA
  * devices.  This is the "generic" version.  The PCI specific version