diff options
Diffstat (limited to 'arch/mips/include/asm/mach-ath25/dma-coherence.h')
| -rw-r--r-- | arch/mips/include/asm/mach-ath25/dma-coherence.h | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/arch/mips/include/asm/mach-ath25/dma-coherence.h b/arch/mips/include/asm/mach-ath25/dma-coherence.h deleted file mode 100644 index d5defdde32db..000000000000 --- a/arch/mips/include/asm/mach-ath25/dma-coherence.h +++ /dev/null @@ -1,76 +0,0 @@ -/* - * 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_ATH25_DMA_COHERENCE_H -#define __ASM_MACH_ATH25_DMA_COHERENCE_H - -#include <linux/device.h> - -/* - * We need some arbitrary non-zero value to be programmed to the BAR1 register - * of PCI host controller to enable DMA. The same value should be used as the - * offset to calculate the physical address of DMA buffer for PCI devices. - */ -#define AR2315_PCI_HOST_SDRAM_BASEADDR 0x20000000 - -static inline dma_addr_t ath25_dev_offset(struct device *dev) -{ -#ifdef CONFIG_PCI - extern struct bus_type pci_bus_type; - - if (dev && dev->bus == &pci_bus_type) - return AR2315_PCI_HOST_SDRAM_BASEADDR; -#endif - return 0; -} - -static inline dma_addr_t -plat_map_dma_mem(struct device *dev, void *addr, size_t size) -{ - return virt_to_phys(addr) + ath25_dev_offset(dev); -} - -static inline dma_addr_t -plat_map_dma_mem_page(struct device *dev, struct page *page) -{ - return page_to_phys(page) + ath25_dev_offset(dev); -} - -static inline unsigned long -plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr) -{ - return dma_addr - ath25_dev_offset(dev); -} - -static inline void -plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, size_t size, - enum dma_data_direction direction) -{ -} - -static inline int plat_dma_supported(struct device *dev, u64 mask) -{ - return 1; -} - -static inline int plat_device_is_coherent(struct device *dev) -{ -#ifdef CONFIG_DMA_COHERENT - return 1; -#endif -#ifdef CONFIG_DMA_NONCOHERENT - return 0; -#endif -} - -static inline void plat_post_dma_flush(struct device *dev) -{ -} - -#endif /* __ASM_MACH_ATH25_DMA_COHERENCE_H */ |