summaryrefslogtreecommitdiff
path: root/arch/arm/mach-sa1100/include/mach/memory.h
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-sa1100/include/mach/memory.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/memory.h')
-rw-r--r--arch/arm/mach-sa1100/include/mach/memory.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h
new file mode 100644
index 00000000..12d37679
--- /dev/null
+++ b/arch/arm/mach-sa1100/include/mach/memory.h
@@ -0,0 +1,41 @@
+/*
+ * arch/arm/mach-sa1100/include/mach/memory.h
+ *
+ * Copyright (C) 1999-2000 Nicolas Pitre <nico@fluxnic.net>
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/sizes.h>
+
+/*
+ * Physical DRAM offset is 0xc0000000 on the SA1100
+ */
+#define PLAT_PHYS_OFFSET UL(0xc0000000)
+
+/*
+ * Because of the wide memory address space between physical RAM banks on the
+ * SA1100, it's much convenient to use Linux's SparseMEM support to implement
+ * our memory map representation. Assuming all memory nodes have equal access
+ * characteristics, we then have generic discontiguous memory support.
+ *
+ * The sparsemem banks are matched with the physical memory bank addresses
+ * which are incidentally the same as virtual addresses.
+ *
+ * node 0: 0xc0000000 - 0xc7ffffff
+ * node 1: 0xc8000000 - 0xcfffffff
+ * node 2: 0xd0000000 - 0xd7ffffff
+ * node 3: 0xd8000000 - 0xdfffffff
+ */
+#define MAX_PHYSMEM_BITS 32
+#define SECTION_SIZE_BITS 27
+
+/*
+ * Cache flushing area - SA1100 zero bank
+ */
+#define FLUSH_BASE_PHYS 0xe0000000
+#define FLUSH_BASE 0xf5000000
+#define FLUSH_BASE_MINICACHE 0xf5100000
+
+#endif