strip the kernel version suffix from target directories, except for brcm-2.4 (the...

[openwrt.git] / target / linux / atheros / files / include / asm-mips / mach-atheros / dma-coherence.h

diff --git a/target/linux/atheros/files/include/asm-mips/mach-atheros/dma-coherence.h b/target/linux/atheros/files/include/asm-mips/mach-atheros/dma-coherence.h
new file mode 100644 (file)
index 0000000..34e5a85
--- /dev/null
+++ b/target/linux/atheros/files/include/asm-mips/mach-atheros/dma-coherence.h
@@ -0,0 +1,45 @@
+/*
+ * 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
+
+#if 0
+#define PCI_DMA_OFFSET 0x20000000
+#else
+#define PCI_DMA_OFFSET 0x00000000
+#endif
+
+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 */