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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-12 16:25:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-12 16:25:35 -0800
commit9219a3b9889dbc7dae68e472f239672ff48860b0 (patch)
treec6446d63dd7ffb0f118804e354eee3d80041717e /arch/mips/cavium-octeon/dma-octeon.c
parent23ead7291269db3be71b442324381c8d63e5d0b3 (diff)
parentcde15b5927fea3e1b4de0b277008cf273d8b000b (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (37 commits) MIPS: Only write c0_framemask on CPUs which have this register. MIPS: Alchemy: new userspace suspend interface for development boards. MIPS: Alchemy: dbdma suspend/resume support. MIPS: Alchemy: Fix up PM code on Au1550/Au1200 MIPS: Alchemy: move calc_clock function. MIPS: Alchemy: RTC counter clocksource / clockevent support. MIPS: make cp0 counter clocksource/event usable as fallback. MIPS: Alchemy: remove cpu_table. MIPS: Alchemy: remove get/set_au1x00_lcd_clock(). MIPS: Print irq handler description MIPS: Alchemy: pb1200: update CPLD cascade irq handler. MIPS: Alchemy: update core interrupt code. MIPS: Alchemy: move commandline mangling out of common code MIPS: Alchemy: devboards: consolidate files MIPS: Alchemy: Move development board code to common subdirectory MIPS: Add Cavium OCTEON to arch/mips/Kconfig MIPS: Add defconfig for Cavium OCTEON. MIPS: Adjust the dma-common.c platform hooks. MIPS: Add Cavium OCTEON slot into proper tlb category. MIPS: Compute branch returns for Cavium OCTEON specific branch instructions. ...
Diffstat (limited to 'arch/mips/cavium-octeon/dma-octeon.c')
-rw-r--r--arch/mips/cavium-octeon/dma-octeon.c32
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;
+}