38 lines
1 KiB
C
38 lines
1 KiB
C
/*
|
|
* linux/include/asm-arm/arch-iop3xx/memory.h
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_MEMORY_H
|
|
#define __ASM_ARCH_MEMORY_H
|
|
|
|
#include <asm/hardware.h>
|
|
|
|
/*
|
|
* Physical DRAM offset.
|
|
*/
|
|
#ifndef CONFIG_ARCH_IOP331
|
|
#define PHYS_OFFSET UL(0xa0000000)
|
|
#else
|
|
#define PHYS_OFFSET UL(0x00000000)
|
|
#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
|
|
|
|
#endif
|