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author | Hauke Mehrtens <hauke@hauke-m.de> | 2009-02-20 16:27:42 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2009-02-20 16:27:42 +0000 |
commit | 668860c98f79e2b17febcaa1eb5c70aecdedbb9a (patch) | |
tree | 91616eac9f23649611a0ac944a33bbc63e9aa7dc /target/linux/atheros/files-2.6.28/arch/mips/include/asm/mach-atheros/dma-coherence.h | |
parent | cde75fb5af88044e36cae6b24703eb51faca746b (diff) | |
download | upstream-668860c98f79e2b17febcaa1eb5c70aecdedbb9a.tar.gz upstream-668860c98f79e2b17febcaa1eb5c70aecdedbb9a.tar.bz2 upstream-668860c98f79e2b17febcaa1eb5c70aecdedbb9a.zip |
Add initial kernel 2.6.28 support for atheros target. The include files moved from /include/asm-mips/mach-atheros/ to /arch/mips/include/asm/mach-atheros/ This patch is based on the old kernel 2.6.27 patches.
SVN-Revision: 14584
Diffstat (limited to 'target/linux/atheros/files-2.6.28/arch/mips/include/asm/mach-atheros/dma-coherence.h')
-rw-r--r-- | target/linux/atheros/files-2.6.28/arch/mips/include/asm/mach-atheros/dma-coherence.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/linux/atheros/files-2.6.28/arch/mips/include/asm/mach-atheros/dma-coherence.h b/target/linux/atheros/files-2.6.28/arch/mips/include/asm/mach-atheros/dma-coherence.h new file mode 100644 index 0000000000..fe53556881 --- /dev/null +++ b/target/linux/atheros/files-2.6.28/arch/mips/include/asm/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 <ralf@linux-mips.org> + * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org> + * + */ +#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 */ |