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Diffstat (limited to 'include/asm-arm/arch-ks8695/memory.h')
| -rw-r--r-- | include/asm-arm/arch-ks8695/memory.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ks8695/memory.h b/include/asm-arm/arch-ks8695/memory.h new file mode 100644 index 0000000..24f6a6e --- /dev/null +++ b/include/asm-arm/arch-ks8695/memory.h @@ -0,0 +1,49 @@ +/* + * include/asm-arm/arch-ks8695/memory.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 Memory definitions + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#include <asm/hardware.h> + +/* + * Physical SRAM offset. + */ +#define PHYS_OFFSET KS8695_SDRAM_PA + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_PCI + +/* PCI mappings */ +#define __virt_to_bus(x) ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA) +#define __bus_to_virt(x) ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET) + +/* Platform-bus mapping */ +extern struct bus_type platform_bus_type; +#define is_lbus_device(dev) (dev && dev->bus == &platform_bus_type) +#define __arch_dma_to_virt(dev, x) ({ is_lbus_device(dev) ? \ + __phys_to_virt(x) : __bus_to_virt(x); }) +#define __arch_virt_to_dma(dev, x) ({ is_lbus_device(dev) ? \ + (dma_addr_t)__virt_to_phys(x) : (dma_addr_t)__virt_to_bus(x); }) +#define __arch_page_to_dma(dev, x) __arch_virt_to_dma(dev, page_address(x)) + +#else + +#define __virt_to_bus(x) __virt_to_phys(x) +#define __bus_to_virt(x) __phys_to_virt(x) + +#endif + +#endif + +#endif |