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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-07-31 14:20:16 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-07-31 14:20:16 +0100
commit7b70c4275f28702b76b273c8534c38f8313812e9 (patch)
tree1df2229ca02466bd1adda814ac5c37aa0a597db1 /arch/arm/mach-lpc32xx/include/mach/hardware.h
parentceb0885d3b01bb2e2f18765770e212914f2864be (diff)
parenta20df564d15bd28e3df24e1c65b885bd74d23f17 (diff)
Merge branch 'devel-stable' into devel
Conflicts: arch/arm/kernel/entry-armv.S arch/arm/kernel/setup.c arch/arm/mm/init.c
Diffstat (limited to 'arch/arm/mach-lpc32xx/include/mach/hardware.h')
-rw-r--r--arch/arm/mach-lpc32xx/include/mach/hardware.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-lpc32xx/include/mach/hardware.h b/arch/arm/mach-lpc32xx/include/mach/hardware.h
new file mode 100644
index 00000000000..33e1dde37bd
--- /dev/null
+++ b/arch/arm/mach-lpc32xx/include/mach/hardware.h
@@ -0,0 +1,34 @@
+/*
+ * arch/arm/mach-lpc32xx/include/mach/hardware.h
+ *
+ * Copyright (c) 2005 MontaVista Software, Inc. <source@mvista.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+/*
+ * Start of virtual addresses for IO devices
+ */
+#define IO_BASE 0xF0000000
+
+/*
+ * This macro relies on fact that for all HW i/o addresses bits 20-23 are 0
+ */
+#define IO_ADDRESS(x) (((((x) & 0xff000000) >> 4) | ((x) & 0xfffff)) |\
+ IO_BASE)
+
+#define io_p2v(x) ((void __iomem *) (unsigned long) IO_ADDRESS(x))
+#define io_v2p(x) ((((x) & 0x0ff00000) << 4) | ((x) & 0x000fffff))
+
+#endif