diff options
Diffstat (limited to 'include/asm-arm/arch-iop33x/memory.h')
| -rw-r--r-- | include/asm-arm/arch-iop33x/memory.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/asm-arm/arch-iop33x/memory.h b/include/asm-arm/arch-iop33x/memory.h new file mode 100644 index 00000000000..5e47164934c --- /dev/null +++ b/include/asm-arm/arch-iop33x/memory.h @@ -0,0 +1,26 @@ +/* + * linux/include/asm-arm/arch-iop33x/memory.h + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#include <asm/hardware.h> + +/* + * Physical DRAM offset. + */ +#define PHYS_OFFSET UL(0x00000000) + +/* + * 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. + */ +#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 |