ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/hexagon/lib/io.c b/marvell/linux/arch/hexagon/lib/io.c
new file mode 100644
index 0000000..55f7539
--- /dev/null
+++ b/marvell/linux/arch/hexagon/lib/io.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * I/O access functions for Hexagon
+ *
+ * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
+ */
+
+#include <asm/io.h>
+
+/* These are all FIFO routines! */
+
+/*
+ * __raw_readsw - read words a short at a time
+ * @addr: source address
+ * @data: data address
+ * @len: number of shorts to read
+ */
+void __raw_readsw(const void __iomem *addr, void *data, int len)
+{
+ const volatile short int *src = (short int *) addr;
+ short int *dst = (short int *) data;
+
+ if ((u32)data & 0x1)
+ panic("unaligned pointer to readsw");
+
+ while (len-- > 0)
+ *dst++ = *src;
+
+}
+EXPORT_SYMBOL(__raw_readsw);
+
+/*
+ * __raw_writesw - read words a short at a time
+ * @addr: source address
+ * @data: data address
+ * @len: number of shorts to read
+ */
+void __raw_writesw(void __iomem *addr, const void *data, int len)
+{
+ const short int *src = (short int *)data;
+ volatile short int *dst = (short int *)addr;
+
+ if ((u32)data & 0x1)
+ panic("unaligned pointer to writesw");
+
+ while (len-- > 0)
+ *dst = *src++;
+
+
+}
+EXPORT_SYMBOL(__raw_writesw);
+
+/* Pretty sure len is pre-adjusted for the length of the access already */
+void __raw_readsl(const void __iomem *addr, void *data, int len)
+{
+ const volatile long *src = (long *) addr;
+ long *dst = (long *) data;
+
+ if ((u32)data & 0x3)
+ panic("unaligned pointer to readsl");
+
+ while (len-- > 0)
+ *dst++ = *src;
+
+
+}
+EXPORT_SYMBOL(__raw_readsl);
+
+void __raw_writesl(void __iomem *addr, const void *data, int len)
+{
+ const long *src = (long *)data;
+ volatile long *dst = (long *)addr;
+
+ if ((u32)data & 0x3)
+ panic("unaligned pointer to writesl");
+
+ while (len-- > 0)
+ *dst = *src++;
+
+
+}
+EXPORT_SYMBOL(__raw_writesl);