1 files changed, 41 insertions, 0 deletions

diff --git a/include/asm-arm/arch-iop3xx/memory.h b/include/asm-arm/arch-iop3xx/memory.h
new file mode 100644
index 000000000000..dc4735cb0c10
--- /dev/null
+++ b/include/asm-arm/arch-iop3xx/memory.h
@@ -0,0 +1,41 @@
+/*
+ * linux/include/asm-arm/arch-iop3xx/memory.h
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <linux/config.h>
+#include <asm/hardware.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#ifndef CONFIG_ARCH_IOP331
+#define PHYS_OFFSET     (0xa0000000UL)
+#else
+#define PHYS_OFFSET     (0x00000000UL)
+#endif
+
+/*
+ * Virtual view <-> PCI DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *              address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *              to an address that the kernel can use.
+ */
+#if defined(CONFIG_ARCH_IOP321)
+
+#define __virt_to_bus(x)        (((__virt_to_phys(x)) & ~(*IOP321_IATVR2)) | ((*IOP321_IABAR2) & 0xfffffff0))
+#define __bus_to_virt(x)    (__phys_to_virt(((x) & ~(*IOP321_IALR2)) | ( *IOP321_IATVR2)))
+
+#elif defined(CONFIG_ARCH_IOP331)
+
+#define __virt_to_bus(x)        (((__virt_to_phys(x)) & ~(*IOP331_IATVR2)) | ((*IOP331_IABAR2) & 0xfffffff0))
+#define __bus_to_virt(x)    (__phys_to_virt(((x) & ~(*IOP331_IALR2)) | ( *IOP331_IATVR2)))
+
+#endif
+
+#define PFN_TO_NID(addr)        (0)
+
+#endif