ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/include/soc/arc/aux.h b/marvell/linux/include/soc/arc/aux.h
new file mode 100644
index 0000000..e223c4f
--- /dev/null
+++ b/marvell/linux/include/soc/arc/aux.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2016-2017 Synopsys, Inc. (www.synopsys.com)
+ */
+
+#ifndef __SOC_ARC_AUX_H__
+#define __SOC_ARC_AUX_H__
+
+#ifdef CONFIG_ARC
+
+#define read_aux_reg(r) __builtin_arc_lr(r)
+
+/* gcc builtin sr needs reg param to be long immediate */
+#define write_aux_reg(r, v) __builtin_arc_sr((unsigned int)(v), r)
+
+#else /* !CONFIG_ARC */
+
+static inline int read_aux_reg(u32 r)
+{
+ return 0;
+}
+
+/*
+ * function helps elide unused variable warning
+ * see: http://lists.infradead.org/pipermail/linux-snps-arc/2016-November/001748.html
+ */
+static inline void write_aux_reg(u32 r, u32 v)
+{
+ ;
+}
+
+#endif
+
+#define READ_BCR(reg, into) \
+{ \
+ unsigned int tmp; \
+ tmp = read_aux_reg(reg); \
+ if (sizeof(tmp) == sizeof(into)) { \
+ into = *((typeof(into) *)&tmp); \
+ } else { \
+ extern void bogus_undefined(void); \
+ bogus_undefined(); \
+ } \
+}
+
+#define WRITE_AUX(reg, into) \
+{ \
+ unsigned int tmp; \
+ if (sizeof(tmp) == sizeof(into)) { \
+ tmp = (*(unsigned int *)&(into)); \
+ write_aux_reg(reg, tmp); \
+ } else { \
+ extern void bogus_undefined(void); \
+ bogus_undefined(); \
+ } \
+}
+
+
+#endif