From c13d383c2be23f646e0de054eb8ea7d4bce115f6 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 15 Feb 2007 21:52:13 +0000 Subject: some ar531x cleanup SVN-Revision: 6302 --- .../include/asm-mips/mach-atheros/dma-coherence.h | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 target/linux/atheros-2.6/files/include/asm-mips/mach-atheros/dma-coherence.h (limited to 'target/linux/atheros-2.6/files/include') diff --git a/target/linux/atheros-2.6/files/include/asm-mips/mach-atheros/dma-coherence.h b/target/linux/atheros-2.6/files/include/asm-mips/mach-atheros/dma-coherence.h new file mode 100644 index 0000000000..fe53556881 --- /dev/null +++ b/target/linux/atheros-2.6/files/include/asm-mips/mach-atheros/dma-coherence.h @@ -0,0 +1,41 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2006 Ralf Baechle + * Copyright (C) 2007 Felix Fietkau + * + */ +#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H +#define __ASM_MACH_GENERIC_DMA_COHERENCE_H + +#define PCI_DMA_OFFSET 0x20000000 + +struct device; + +static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) +{ + return virt_to_phys(addr) + (dev != NULL ? PCI_DMA_OFFSET : 0); +} + +static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page) +{ + return page_to_phys(page) + (dev != NULL ? PCI_DMA_OFFSET : 0); +} + +static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) +{ + return (dma_addr > PCI_DMA_OFFSET ? dma_addr - PCI_DMA_OFFSET : dma_addr); +} + +static void plat_unmap_dma_mem(dma_addr_t dma_addr) +{ +} + +static inline int plat_device_is_coherent(struct device *dev) +{ + return 0; +} + +#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */ -- cgit v1.2.3