m68knommu: create bit definitions for the version 2 ColdFire cache co…

…ntroller

The version 2 ColdFire CPU based cores all contain a similar cache
controller unit. Create a set of bit flag definitions for the supporting
registers.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

arch/m68k/include/asm/m5206sim.h

@@ -15,6 +15,8 @@
 #define	CPU_NAME		"COLDFIRE(m5206)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *	Define the 5206 SIM register set addresses.
  */

arch/m68k/include/asm/m520xsim.h

@@ -14,6 +14,8 @@
 #define	CPU_NAME		"COLDFIRE(m520x)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *  Define the 520x SIM register set addresses.
  */
@@ -57,6 +59,9 @@
 #define MCFSIM_SDCS0        0x000a8110	/* SDRAM Chip Select 0 Configuration */
 #define MCFSIM_SDCS1        0x000a8114	/* SDRAM Chip Select 1 Configuration */
 
+/*
+ * EPORT and GPIO registers.
+ */
 #define MCFEPORT_EPDDR			0xFC088002
 #define MCFEPORT_EPDR			0xFC088004
 #define MCFEPORT_EPPDR			0xFC088005

arch/m68k/include/asm/m523xsim.h

@@ -14,6 +14,8 @@
 #define	CPU_NAME		"COLDFIRE(m523x)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *	Define the 523x SIM register set addresses.
  */

arch/m68k/include/asm/m5249sim.h

@@ -14,6 +14,8 @@
 #define	CPU_NAME		"COLDFIRE(m5249)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *	Define the 5249 SIM register set addresses.
  */

arch/m68k/include/asm/m5272sim.h

@@ -15,6 +15,8 @@
 #define	CPU_NAME		"COLDFIRE(m5272)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *	Define the 5272 SIM register set addresses.
  */

arch/m68k/include/asm/m527xsim.h

@@ -14,6 +14,7 @@
 #define	CPU_NAME		"COLDFIRE(m527x)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
 
 /*
  *	Define the 5270/5271 SIM register set addresses.

arch/m68k/include/asm/m528xsim.h

@@ -14,6 +14,8 @@
 #define	CPU_NAME		"COLDFIRE(m528x)"
 #define	CPU_INSTR_PER_JIFFY	3
 
+#include <asm/m52xxacr.h>
+
 /*
  *	Define the 5280/5282 SIM register set addresses.
  */

arch/m68k/include/asm/m52xxacr.h

@@ -0,0 +1,56 @@
+/****************************************************************************/
+
+/*
+ * m52xxacr.h -- ColdFire version 2 core cache support
+ *
+ * (C) Copyright 2010, Greg Ungerer <gerg@snapgear.com>
+ */
+
+/****************************************************************************/
+#ifndef m52xxacr_h
+#define m52xxacr_h
+/****************************************************************************/
+
+/*
+ * All varients of the ColdFire using version 2 cores have a similar
+ * cache setup. Although not absolutely identical the cache register
+ * definitions are compatible for all of them. Mostly they support a
+ * configurable cache memory that can be instruction only, data only,
+ * or split instruction and data. The exception is the very old version 2
+ * core based parts, like the 5206(e), 5249 and 5272, which are instruction
+ * cache only. Cache size varies from 2k up to 16k.
+ */
+
+/*
+ * Define the Cache Control register flags.
+ */
+#define CACR_CENB	0x80000000	/* Enable cache */
+#define CACR_CDPI	0x10000000	/* Disable invalidation by CPUSHL */
+#define CACR_CFRZ	0x08000000	/* Cache freeze mode */
+#define CACR_CINV	0x01000000	/* Invalidate cache */
+#define CACR_DISI	0x00800000	/* Disable instruction cache */
+#define CACR_DISD	0x00400000	/* Disable data cache */
+#define CACR_INVI	0x00200000	/* Invalidate instruction cache */
+#define CACR_INVD	0x00100000	/* Invalidate data cache */
+#define CACR_CEIB	0x00000400	/* Non-cachable instruction burst */
+#define CACR_DCM	0x00000200	/* Default cache mode */
+#define CACR_DBWE	0x00000100	/* Buffered write enable */
+#define CACR_DWP	0x00000020	/* Write protection */
+#define CACR_EUSP	0x00000010	/* Enable separate user a7 */
+
+/*
+ * Define the Access Control register flags.
+ */
+#define ACR_BASE_POS	24		/* Address Base (upper 8 bits) */
+#define ACR_MASK_POS	16		/* Address Mask (next 8 bits) */
+#define ACR_ENABLE	0x00008000	/* Enable this ACR */
+#define ACR_USER	0x00000000	/* Allow only user accesses */
+#define ACR_SUPER	0x00002000	/* Allow supervisor access only */
+#define ACR_ANY		0x00004000	/* Allow any access type */
+#define ACR_CENB	0x00000000	/* Caching of region enabled */
+#define ACR_CDIS	0x00000040	/* Caching of region disabled */
+#define ACR_BWE		0x00000020	/* Write buffer enabled */
+#define ACR_WPROTECT	0x00000004	/* Write protect region */
+
+/****************************************************************************/
+#endif  /* m52xxsim_h */