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authorfishsoupisgood <github@madingley.org>2019-04-29 01:17:54 +0100
committerfishsoupisgood <github@madingley.org>2019-05-27 03:43:43 +0100
commit3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch)
tree65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/arch/arm/include/asm/dma-mapping.h
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Initial import of qemu-2.4.1HEADmaster
Diffstat (limited to 'roms/u-boot/arch/arm/include/asm/dma-mapping.h')
-rw-r--r--roms/u-boot/arch/arm/include/asm/dma-mapping.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/roms/u-boot/arch/arm/include/asm/dma-mapping.h b/roms/u-boot/arch/arm/include/asm/dma-mapping.h
new file mode 100644
index 00000000..55a4e266
--- /dev/null
+++ b/roms/u-boot/arch/arm/include/asm/dma-mapping.h
@@ -0,0 +1,34 @@
+/*
+ * (C) Copyright 2007
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#ifndef __ASM_ARM_DMA_MAPPING_H
+#define __ASM_ARM_DMA_MAPPING_H
+
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+};
+
+static void *dma_alloc_coherent(size_t len, unsigned long *handle)
+{
+ *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
+ return (void *)*handle;
+}
+
+static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
+ enum dma_data_direction dir)
+{
+ return (unsigned long)vaddr;
+}
+
+static inline void dma_unmap_single(volatile void *vaddr, size_t len,
+ unsigned long paddr)
+{
+}
+
+#endif /* __ASM_ARM_DMA_MAPPING_H */