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-rw-r--r--bsp/include/sifive/const.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/bsp/include/sifive/const.h b/bsp/include/sifive/const.h
new file mode 100644
index 0000000..3e0a681
--- /dev/null
+++ b/bsp/include/sifive/const.h
@@ -0,0 +1,17 @@
+/* Derived from <linux/const.h> */
+
+#ifndef _SIFIVE_CONST_H
+#define _SIFIVE_CONST_H
+
+#ifdef __ASSEMBLER__
+#define _AC(X,Y) X
+#define _AT(T,X) X
+#else
+#define _AC(X,Y) (X##Y)
+#define _AT(T,X) ((T)(X))
+#endif /* !__ASSEMBLER__*/
+
+#define _BITUL(x) (_AC(1,UL) << (x))
+#define _BITULL(x) (_AC(1,ULL) << (x))
+
+#endif /* _SIFIVE_CONST_H */