patch-2.4.22 linux-2.4.22/include/asm-mips64/mv64340_dep.h

• Lines: 52
• Date: 2003-08-25 04:44:44.000000000 -0700
• Orig file: linux-2.4.21/include/asm-mips64/mv64340_dep.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-mips64/mv64340_dep.h linux-2.4.22/include/asm-mips64/mv64340_dep.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2002 Momentum Computer Inc.
+ * Author: Matthew Dharm <mdharm@momenco.com>
+ *
+ * include/asm-mips/mv64340-dep.h
+ *     Board-dependent definitions for MV-64340 chip.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MV64340_DEP_H__
+#define __MV64340_DEP_H__
+
+#include <asm/addrspace.h>		/* for KSEG1ADDR() */
+#include <asm/byteorder.h>		/* for cpu_to_le32() */
+
+extern unsigned long mv64340_base;
+
+#define MV64340_BASE       (mv64340_base)
+
+/*
+ * Because of an error/peculiarity in the Galileo chip, we need to swap the
+ * bytes when running bigendian.
+ */
+
+#define MV_WRITE(ofs, data)  \
+        *(volatile u32 *)(MV64340_BASE+(ofs)) = cpu_to_le32(data)
+#define MV_READ(ofs, data)   \
+        *(data) = le32_to_cpu(*(volatile u32 *)(MV64340_BASE+(ofs)))
+#define MV_READ_DATA(ofs)    \
+        le32_to_cpu(*(volatile u32 *)(MV64340_BASE+(ofs)))
+
+#define MV_WRITE_16(ofs, data)  \
+        *(volatile u16 *)(MV64340_BASE+(ofs)) = cpu_to_le16(data)
+#define MV_READ_16(ofs, data)   \
+        *(data) = le16_to_cpu(*(volatile u16 *)(MV64340_BASE+(ofs)))
+
+#define MV_WRITE_8(ofs, data)  \
+        *(volatile u8 *)(MV64340_BASE+(ofs)) = data
+#define MV_READ_8(ofs, data)   \
+        *(data) = *(volatile u8 *)(MV64340_BASE+(ofs))
+
+#define MV_SET_REG_BITS(ofs,bits) \
+	(*((volatile u32 *)(MV64340_BASE+(ofs)))) |= ((u32)cpu_to_le32(bits))
+#define MV_RESET_REG_BITS(ofs,bits) \
+	(*((volatile u32 *)(MV64340_BASE+(ofs)))) &= ~((u32)cpu_to_le32(bits))
+
+#endif