diff options
Diffstat (limited to 'arch/mips/cavium-octeon/dma-octeon.c')
| -rw-r--r-- | arch/mips/cavium-octeon/dma-octeon.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c new file mode 100644 index 00000000000..01b1ef94b36 --- /dev/null +++ b/arch/mips/cavium-octeon/dma-octeon.c @@ -0,0 +1,32 @@ +/* + * 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) 2000 Ani Joshi <ajoshi@unixbox.com> + * Copyright (C) 2000, 2001 Ralf Baechle <ralf@gnu.org> + * Copyright (C) 2005 Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com> + * swiped from i386, and cloned for MIPS by Geert, polished by Ralf. + * IP32 changes by Ilya. + * Cavium Networks: Create new dma setup for Cavium Networks Octeon based on + * the kernels original. + */ +#include <linux/types.h> +#include <linux/mm.h> + +#include <dma-coherence.h> + +dma_addr_t octeon_map_dma_mem(struct device *dev, void *ptr, size_t size) +{ + /* Without PCI/PCIe this function can be called for Octeon internal + devices such as USB. These devices all support 64bit addressing */ + mb(); + return virt_to_phys(ptr); +} + +void octeon_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) +{ + /* Without PCI/PCIe this function can be called for Octeon internal + * devices such as USB. These devices all support 64bit addressing */ + return; +} |