ns9xxx: prepare for adding support for Digi ns921x processors

The hardware team changed some things that were taken as being common to
all ns9xxx processors up to now.

This patch addresses:

- irqs: s/IRQ_/IRQ_NS9360_/

- system module registers: some registers are still general, their
  definition lives now in include/asm-arm/arch-ns9xxx/regs-sys-common.h.
  The ns9360 specific ones are in .../regs-sys-ns9360.h
  As a result ns9360_systemclock cannot be static inline any more as its
  definition needs regs-sys-ns9360.h.  This becomes a real problem when
  adding support for ns9215 as this will need regs-sys-ns9215.h and
  including both files will not work.  For the same reason
  ns9360_reset() is now non-inline and gpio functions live in their own
  file.

- register mapping: s/ns9xxx_map_io/ns9360_map_io/

- timer registers:  move time.c to time-ns9360.c;
  s/ns9xxx_timer/ns9360_timer/

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>

arch/arm/mach-ns9xxx/generic.c

@@ -1,7 +1,7 @@
 /*
  * arch/arm/mach-ns9xxx/generic.c
  *
- * Copyright (C) 2006 by Digi International Inc.
+ * Copyright (C) 2006,2007 by Digi International Inc.
  * All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -11,34 +11,9 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <asm/memory.h>
-#include <asm/page.h>
-#include <asm/mach-types.h>
-#include <asm/mach/map.h>
-#include <asm/arch-ns9xxx/regs-sys.h>
-#include <asm/arch-ns9xxx/regs-mem.h>
-#include <asm/arch-ns9xxx/board.h>
 
 #include "generic.h"
 
-static struct map_desc standard_io_desc[] __initdata = {
-	{ /* BBus */
-		.virtual = io_p2v(0x90000000),
-		.pfn = __phys_to_pfn(0x90000000),
-		.length = 0x00700000,
-		.type = MT_DEVICE,
-	}, { /* AHB */
-		.virtual = io_p2v(0xa0100000),
-		.pfn = __phys_to_pfn(0xa0100000),
-		.length = 0x00900000,
-		.type = MT_DEVICE,
-	},
-};
-
-void __init ns9xxx_map_io(void)
-{
-	iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
-}
-
 void __init ns9xxx_init_machine(void)
 {
 }