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diff --git a/qemu/roms/u-boot/arch/nios2/include/asm/cache.h b/qemu/roms/u-boot/arch/nios2/include/asm/cache.h
new file mode 100644
index 000000000..9b87c9f75
--- /dev/null
+++ b/qemu/roms/u-boot/arch/nios2/include/asm/cache.h
@@ -0,0 +1,25 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_NIOS2_CACHE_H_
+#define __ASM_NIOS2_CACHE_H_
+
+extern void flush_dcache (unsigned long start, unsigned long size);
+extern void flush_icache (unsigned long start, unsigned long size);
+
+/*
+ * Valid L1 data cache line sizes for the NIOS2 architecture are 4, 16, and 32
+ * bytes.  If the board configuration has not specified one we default to the
+ * largest of these values for alignment of DMA buffers.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN	32
+#endif
+
+#endif /* __ASM_NIOS2_CACHE_H_ */