1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
new file mode 100644
index 0000000000..0dd3fa826c
--- /dev/null
+++ b/arch/arm/include/asm/mmu.h
@@ -0,0 +1,64 @@
+#ifndef __ASM_MMU_H
+#define __ASM_MMU_H
+
+#include <asm/pgtable.h>
+#include <malloc.h>
+
+#define PMD_SECT_DEF_UNCACHED (PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT)
+#define PMD_SECT_DEF_CACHED (PMD_SECT_WB | PMD_SECT_DEF_UNCACHED)
+
+void mmu_init(void);
+void mmu_enable(void);
+void mmu_disable(void);
+void arm_create_section(unsigned long virt, unsigned long phys, int size_m,
+		unsigned int flags);
+
+void setup_dma_coherent(unsigned long offset);
+
+#ifdef CONFIG_MMU
+void *dma_alloc_coherent(size_t size);
+void dma_free_coherent(void *mem);
+
+void dma_clean_range(const void *, const void *);
+void dma_flush_range(const void *, const void *);
+void dma_inv_range(const void *, const void *);
+unsigned long virt_to_phys(void *virt);
+void *phys_to_virt(unsigned long phys);
+
+#else
+static inline void *dma_alloc_coherent(size_t size)
+{
+	return malloc(size);
+}
+
+static inline void dma_free_coherent(void *mem)
+{
+	free(mem);
+}
+
+static inline void *phys_to_virt(unsigned long phys)
+{
+	return (void *)phys;
+}
+
+static inline unsigned long virt_to_phys(void *mem)
+{
+	return (unsigned long)mem;
+}
+
+static inline void dma_clean_range(const void *s, const void *e)
+{
+}
+
+static inline void dma_flush_range(const void *s, const void *e)
+{
+}
+
+static inline void dma_inv_range(const void *s, const void *e)
+{
+}
+
+#endif
+
+#endif /* __ASM_MMU_H */
+