Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk

1 files changed, 67 insertions, 0 deletions

diff --git a/arch/arm/mach-footbridge/include/mach/memory.h b/arch/arm/mach-footbridge/include/mach/memory.h
new file mode 100644
index 00000000000..e9cae99dd1f
--- /dev/null
+++ b/arch/arm/mach-footbridge/include/mach/memory.h
@@ -0,0 +1,67 @@
+/*
+ *  arch/arm/mach-footbridge/include/mach/memory.h
+ *
+ *  Copyright (C) 1996-1999 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Changelog:
+ *   20-Oct-1996 RMK	Created
+ *   31-Dec-1997 RMK	Fixed definitions to reduce warnings.
+ *   17-May-1998 DAG	Added __virt_to_bus and __bus_to_virt functions.
+ *   21-Nov-1998 RMK	Changed __virt_to_bus and __bus_to_virt to macros.
+ *   21-Mar-1999 RMK	Added PAGE_OFFSET for co285 architecture.
+ *			Renamed to memory.h
+ *			Moved PAGE_OFFSET and TASK_SIZE here
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+
+#if defined(CONFIG_FOOTBRIDGE_ADDIN)
+/*
+ * If we may be using add-in footbridge mode, then we must
+ * use the out-of-line translation that makes use of the
+ * PCI BAR
+ */
+#ifndef __ASSEMBLY__
+extern unsigned long __virt_to_bus(unsigned long);
+extern unsigned long __bus_to_virt(unsigned long);
+#endif
+
+#elif defined(CONFIG_FOOTBRIDGE_HOST)
+
+#define __virt_to_bus(x)	((x) - 0xe0000000)
+#define __bus_to_virt(x)	((x) + 0xe0000000)
+
+#else
+
+#error "Undefined footbridge mode"
+
+#endif
+
+/* Task size and page offset at 3GB */
+#define TASK_SIZE		UL(0xbf000000)
+#define PAGE_OFFSET		UL(0xc0000000)
+
+/*
+ * Cache flushing area.
+ */
+#define FLUSH_BASE		0xf9000000
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET		UL(0x00000000)
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE ((TASK_SIZE + 0x01000000) / 3)
+
+#define FLUSH_BASE_PHYS		0x50000000
+
+#endif