ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/arm/include/asm/dcc.h b/marvell/linux/arch/arm/include/asm/dcc.h
new file mode 100644
index 0000000..d24c4be
--- /dev/null
+++ b/marvell/linux/arch/arm/include/asm/dcc.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved.
+ */
+
+#include <asm/barrier.h>
+
+static inline u32 __dcc_getstatus(void)
+{
+ u32 __ret;
+ asm volatile("mrc p14, 0, %0, c0, c1, 0 @ read comms ctrl reg"
+ : "=r" (__ret) : : "cc");
+
+ return __ret;
+}
+
+static inline char __dcc_getchar(void)
+{
+ char __c;
+
+ asm volatile("mrc p14, 0, %0, c0, c5, 0 @ read comms data reg"
+ : "=r" (__c));
+ isb();
+
+ return __c;
+}
+
+static inline void __dcc_putchar(char c)
+{
+ asm volatile("mcr p14, 0, %0, c0, c5, 0 @ write a char"
+ : /* no output register */
+ : "r" (c));
+ isb();
+}