m68knommu: move ColdFire head.S to its own coldfire directory

Move common ColdFire CPU head.S to common coldfire platform directory.

Currently the common ColdFire CPU family code sits in the
arch/m68knommu/platform/5307 directory. This is confusing, the files
containing this common code are in no way specific to the 5307 ColdFire.
Create an arch/m68knommu/platform/coldfire directory to contain this
common code. Other m68knommu CPU varients do not need use this code
though, so it doesn't make sense to move it to arch/m68knommu/kernel.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 222 deletions

diff --git a/arch/m68knommu/platform/5307/head.S b/arch/m68knommu/platform/5307/head.S
deleted file mode 100644
index b9aa0ca29bfb..000000000000
--- a/arch/m68knommu/platform/5307/head.S
+++ /dev/null
@@ -1,222 +0,0 @@
-/*****************************************************************************/
-
-/*
- *	head.S -- common startup code for ColdFire CPUs.
- *
- *	(C) Copyright 1999-2006, Greg Ungerer <gerg@snapgear.com>.
- */
-
-/*****************************************************************************/
-
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/coldfire.h>
-#include <asm/mcfcache.h>
-#include <asm/mcfsim.h>
-
-/*****************************************************************************/
-
-/*
- *	If we don't have a fixed memory size, then lets build in code
- *	to auto detect the DRAM size. Obviously this is the prefered
- *	method, and should work for most boards. It won't work for those
- *	that do not have their RAM starting at address 0, and it only
- *	works on SDRAM (not boards fitted with SRAM).
- */
-#if CONFIG_RAMSIZE != 0
-.macro GET_MEM_SIZE
-	movel	#CONFIG_RAMSIZE,%d0	/* hard coded memory size */
-.endm
-
-#elif defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \
-      defined(CONFIG_M5249) || defined(CONFIG_M527x) || \
-      defined(CONFIG_M528x) || defined(CONFIG_M5307) || \
-      defined(CONFIG_M5407)
-/*
- *	Not all these devices have exactly the same DRAM controller,
- *	but the DCMR register is virtually identical - give or take
- *	a couple of bits. The only exception is the 5272 devices, their
- *	DRAM controller is quite different.
- */
-.macro GET_MEM_SIZE
-	movel	MCF_MBAR+MCFSIM_DMR0,%d0 /* get mask for 1st bank */
-	btst	#0,%d0			/* check if region enabled */
-	beq	1f
-	andl	#0xfffc0000,%d0
-	beq	1f
-	addl	#0x00040000,%d0		/* convert mask to size */
-1:
-	movel	MCF_MBAR+MCFSIM_DMR1,%d1 /* get mask for 2nd bank */
-	btst	#0,%d1			/* check if region enabled */
-	beq	2f
-	andl	#0xfffc0000, %d1
-	beq	2f
-	addl	#0x00040000,%d1
-	addl	%d1,%d0			/* total mem size in d0 */
-2:
-.endm
-
-#elif defined(CONFIG_M5272)
-.macro GET_MEM_SIZE
-	movel	MCF_MBAR+MCFSIM_CSOR7,%d0 /* get SDRAM address mask */
-	andil	#0xfffff000,%d0		/* mask out chip select options */
-	negl	%d0			/* negate bits */
-.endm
-
-#elif defined(CONFIG_M520x)
-.macro GET_MEM_SIZE
-	clrl	%d0
-	movel	MCF_MBAR+MCFSIM_SDCS0, %d2 /* Get SDRAM chip select 0 config */
-	andl	#0x1f, %d2		/* Get only the chip select size */
-	beq	3f			/* Check if it is enabled */
-	addql	#1, %d2			/* Form exponent */
-	moveql	#1, %d0
-	lsll	%d2, %d0		/* 2 ^ exponent */
-3:
-	movel	MCF_MBAR+MCFSIM_SDCS1, %d2 /* Get SDRAM chip select 1 config */
-	andl	#0x1f, %d2		/* Get only the chip select size */
-	beq	4f			/* Check if it is enabled */
-	addql	#1, %d2			/* Form exponent */
-	moveql	#1, %d1
-	lsll	%d2, %d1		/* 2 ^ exponent */
-	addl	%d1, %d0		/* Total size of SDRAM in d0 */
-4:
-.endm
-
-#else
-#error "ERROR: I don't know how to probe your boards memory size?"
-#endif
-
-/*****************************************************************************/
-
-/*
- *	Boards and platforms can do specific early hardware setup if
- *	they need to. Most don't need this, define away if not required.
- */
-#ifndef PLATFORM_SETUP
-#define	PLATFORM_SETUP
-#endif
-
-/*****************************************************************************/
-
-.global	_start
-.global _rambase
-.global _ramvec
-.global	_ramstart
-.global	_ramend
-
-/*****************************************************************************/
-
-.data
-
-/*
- *	During startup we store away the RAM setup. These are not in the
- *	bss, since their values are determined and written before the bss
- *	has been cleared.
- */
-_rambase:
-.long	0
-_ramvec:
-.long	0
-_ramstart:
-.long	0
-_ramend:
-.long	0
-
-/*****************************************************************************/
-
-.text
-
-/*
- *	This is the codes first entry point. This is where it all
- *	begins...
- */
-
-_start:
-	nop					/* filler */
-	movew	#0x2700, %sr			/* no interrupts */
-
-	/*
-	 *	Do any platform or board specific setup now. Most boards
-	 *	don't need anything. Those exceptions are define this in
-	 *	their board specific includes.
-	 */
-	PLATFORM_SETUP
-
-	/*
-	 *	Create basic memory configuration. Set VBR accordingly,
-	 *	and size memory.
-	 */
-	movel	#CONFIG_VECTORBASE,%a7
-	movec   %a7,%VBR			/* set vectors addr */
-	movel	%a7,_ramvec
-
-	movel	#CONFIG_RAMBASE,%a7		/* mark the base of RAM */
-	movel	%a7,_rambase
-
-	GET_MEM_SIZE				/* macro code determines size */
-	addl	%a7,%d0
-	movel	%d0,_ramend			/* set end ram addr */
-
-	/*
-	 *	Now that we know what the memory is, lets enable cache
-	 *	and get things moving. This is Coldfire CPU specific.
-	 */
-	CACHE_ENABLE				/* enable CPU cache */
-
-
-#ifdef CONFIG_ROMFS_FS
-	/*
-	 *	Move ROM filesystem above bss :-)
-	 */
-	lea	_sbss,%a0			/* get start of bss */
-	lea	_ebss,%a1			/* set up destination  */
-	movel	%a0,%a2				/* copy of bss start */
-
-	movel	8(%a0),%d0			/* get size of ROMFS */
-	addql	#8,%d0				/* allow for rounding */
-	andl	#0xfffffffc, %d0		/* whole words */
-
-	addl	%d0,%a0				/* copy from end */
-	addl	%d0,%a1				/* copy from end */
-	movel	%a1,_ramstart			/* set start of ram */
-
-_copy_romfs:
-	movel	-(%a0),%d0			/* copy dword */
-	movel	%d0,-(%a1)
-	cmpl	%a0,%a2				/* check if at end */
-	bne	_copy_romfs
-
-#else /* CONFIG_ROMFS_FS */
-	lea	_ebss,%a1
-	movel	%a1,_ramstart
-#endif /* CONFIG_ROMFS_FS */
-
-
-	/*
-	 *	Zero out the bss region.
-	 */
-	lea	_sbss,%a0			/* get start of bss */
-	lea	_ebss,%a1			/* get end of bss */
-	clrl	%d0				/* set value */
-_clear_bss:
-	movel	%d0,(%a0)+			/* clear each word */
-	cmpl	%a0,%a1				/* check if at end */
-	bne	_clear_bss
-
-	/*
-	 *	Load the current task pointer and stack.
-	 */
-	lea	init_thread_union,%a0
-	lea	THREAD_SIZE(%a0),%sp
-
-	/*
-	 *	Assember start up done, start code proper.
-	 */
-	jsr	start_kernel			/* start Linux kernel */
-
-_exit:
-	jmp	_exit				/* should never get here */
-
-/*****************************************************************************/