[PATCH] ARM: 2755/1: describe ixp2000 virtual memory map layout

Patch from Lennert Buytenhek

Add a comment to asm/arch-ixp2000/ixp2000-regs.h describing the
ixp2000 virtual memory map layout.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Deepak Saxena
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp2000/ixp2000-regs.h b/include/asm-arm/arch-ixp2000/ixp2000-regs.h
index 5eb47d4bfbf6..213c0cfbb157 100644
--- a/include/asm-arm/arch-ixp2000/ixp2000-regs.h
+++ b/include/asm-arm/arch-ixp2000/ixp2000-regs.h
@@ -18,6 +18,21 @@
 #ifndef _IXP2000_REGS_H_
 #define _IXP2000_REGS_H_
 
+/*
+ * IXP2000 linux memory map:
+ *
+ * virt         phys            size
+ * fb000000     db000000        16M             PCI CFG1
+ * fc000000     da000000        16M             PCI CFG0
+ * fd000000     d8000000        16M             PCI I/O
+ * fe[0-7]00000                 8M              per-platform mappings
+ * feb00000     c8000000        1M              MSF
+ * fec00000     df000000        1M              PCI CSRs
+ * fed00000     de000000        1M              PCI CREG
+ * fee00000     d6000000        1M              INTCTL
+ * fef00000     c0000000        1M              CAP
+ */
+
 /* 
  * Static I/O regions.
  *