Some cross-platform drivers rely on this header present.
Make it so for x86.
It's just a copy'n'paste of arch/arm/include/asm/dma-mapping.h.
Suggested-by: Bin Meng <bmeng...@gmail.com>
Reviewed-by: Simon Glass <s...@chromium.org>
Reviewed-by: Bin Meng <bmeng...@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevche...@linux.intel.com>
---
arch/x86/include/asm/dma-mapping.h | 41 ++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 arch/x86/include/asm/dma-mapping.h
diff --git a/arch/x86/include/asm/dma-mapping.h
b/arch/x86/include/asm/dma-mapping.h
new file mode 100644
index 0000000000..7de4c08e36
--- /dev/null
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -0,0 +1,41 @@
+/*
+ * (C) Copyright 2007
+ * Stelian Pop <stel...@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#ifndef __ASM_X86_DMA_MAPPING_H
+#define __ASM_X86_DMA_MAPPING_H
+
+#define dma_mapping_error(x, y) 0
+
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+};
+
+static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
+{
+ *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
+ return (void *)*handle;
+}
+
+static inline void dma_free_coherent(void *addr)
+{
+ free(addr);
+}
+
+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_X86_DMA_MAPPING_H */
--
2.11.0
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
