Merged of mcp750 and mvme2307 BSP by Eric Valette <valette@crf.canon.fr>.

As part of this effort, the mpc750 libcpu code is now shared with the
ppc6xx.

c/src/lib/libcpu/powerpc/mpc6xx/exceptions/raw_exception.h

@@ -0,0 +1,168 @@
+/*
+ * raw_execption.h
+ *
+ *	    This file contains implementation of C function to
+ *          Instanciate 60x ppc primary exception entries.
+ *	    More detailled information can be found on motorola
+ *	    site and more precisely in the following book :
+ *
+ *		MPC750 
+ *		Risc Microporcessor User's Manual
+ *		Mtorola REF : MPC750UM/AD 8/97
+ *
+ * Copyright (C) 1999  Eric Valette (valette@crf.canon.fr)
+ *                     Canon Centre Recherche France.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ * $Id$
+ */
+
+#ifndef _LIBCPU_MCP750_EXCEPTION_RAW_EXCEPTION_H
+#define _LIBCPU_MCP750_EXCEPTION_RAW_EXCEPTION_H
+
+/*
+ * Exception Vectors as defined in the MCP750 manual
+ */
+
+#define	ASM_RESET_VECTOR 	0x01
+#define	ASM_MACH_VECTOR		0x02
+#define	ASM_PROT_VECTOR		0x03
+#define	ASM_ISI_VECTOR 		0x04
+#define	ASM_EXT_VECTOR 		0x05
+#define	ASM_ALIGN_VECTOR 	0x06
+#define	ASM_PROG_VECTOR		0x07
+#define	ASM_FLOAT_VECTOR	0x08
+#define	ASM_DEC_VECTOR		0x09
+#define	ASM_SYS_VECTOR		0x0C
+#define	ASM_TRACE_VECTOR	0x0D
+#define	ASM_ADDR_VECTOR		0x13
+#define	ASM_SYSMGMT_VECTOR	0x14
+#define	ASM_ITM_VECTOR		0x17
+#define LAST_VALID_EXC		ASM_ITM_VECTOR
+
+/*
+ * Vector offsets as defined in the MCP750 manual
+ */
+
+#define	ASM_RESET_VECTOR_OFFSET 	(ASM_RESET_VECTOR << 8)
+#define	ASM_MACH_VECTOR_OFFSET 		(ASM_MACH_VECTOR  << 8)
+#define	ASM_PROT_VECTOR_OFFSET 		(ASM_PROT_VECTOR  << 8)
+#define	ASM_ISI_VECTOR_OFFSET 		(ASM_ISI_VECTOR   << 8)
+#define	ASM_EXT_VECTOR_OFFSET 		(ASM_EXT_VECTOR   << 8)
+#define	ASM_ALIGN_VECTOR_OFFSET 	(ASM_ALIGN_VECTOR << 8)
+#define	ASM_PROG_VECTOR_OFFSET 		(ASM_PROG_VECTOR  << 8)
+#define	ASM_FLOAT_VECTOR_OFFSET		(ASM_FLOAT_VECTOR << 8)
+#define	ASM_DEC_VECTOR_OFFSET		(ASM_DEC_VECTOR   << 8)
+#define	ASM_SYS_VECTOR_OFFSET		(ASM_SYS_VECTOR   << 8)
+#define	ASM_TRACE_VECTOR_OFFSET		(ASM_TRACE_VECTOR << 8)
+#define	ASM_ADDR_VECTOR_OFFSET		(ASM_ADDR_VECTOR  << 8)
+#define	ASM_SYSMGMT_VECTOR_OFFSET	(ASM_SYSMGMT_VECTOR << 8)
+#define	ASM_ITM_VECTOR_OFFSET		(ASM_ITM_VECTOR   << 8)
+
+
+#ifndef ASM
+
+/*
+ * Type definition for raw exceptions. 
+ */
+
+typedef unsigned char  rtems_vector;
+struct 	__rtems_raw_except_connect_data__;
+typedef void 		(*rtems_raw_except_func)		(void);
+typedef unsigned char 	rtems_raw_except_hdl_size;
+
+typedef struct {
+  rtems_vector			vector;
+  rtems_raw_except_func		raw_hdl;
+  rtems_raw_except_hdl_size	raw_hdl_size;
+}rtems_raw_except_hdl;
+  
+typedef void (*rtems_raw_except_enable)		(const struct __rtems_raw_except_connect_data__*);
+typedef void (*rtems_raw_except_disable)	(const struct __rtems_raw_except_connect_data__*);
+typedef int  (*rtems_raw_except_is_enabled)	(const struct __rtems_raw_except_connect_data__*);
+
+typedef struct __rtems_raw_except_connect_data__{
+ /*
+  * Exception vector (As defined in the manual)
+  */
+  rtems_vector			exceptIndex;
+  /*
+   * Exception raw handler. See comment on handler properties below in function prototype.
+   */
+  rtems_raw_except_hdl	   	hdl;
+  /*
+   * function for enabling raw exceptions. In order to be consistent
+   * with the fact that the raw connexion can defined in the
+   * libcpu library, this library should have no knowledge of
+   * board specific hardware to manage exceptions and thus the
+   * "on" routine must enable the except at processor level only.
+   * 
+   */
+    rtems_raw_except_enable	on;	
+  /*
+   * function for disabling raw exceptions. In order to be consistent
+   * with the fact that the raw connexion can defined in the
+   * libcpu library, this library should have no knowledge of
+   * board specific hardware to manage exceptions and thus the
+   * "on" routine must disable the except both at device and PIC level.
+   * 
+   */
+  rtems_raw_except_disable	off;
+  /*
+   * function enabling to know what exception may currently occur
+   */
+  rtems_raw_except_is_enabled	isOn;
+}rtems_raw_except_connect_data;
+
+typedef struct {
+  /*
+   * size of all the table fields (*Tbl) described below.
+   */
+  unsigned int	 			exceptSize;
+  /*
+   * Default handler used when disconnecting exceptions.
+   */
+  rtems_raw_except_connect_data		defaultRawEntry;
+  /*
+   * Table containing initials/current value.
+   */
+  rtems_raw_except_connect_data*	rawExceptHdlTbl;
+}rtems_raw_except_global_settings;
+
+/*
+ * C callable function enabling to set up one raw idt entry
+ */
+extern int mpc60x_set_exception (const rtems_raw_except_connect_data*);
+
+/*
+ * C callable function enabling to get one current raw idt entry
+ */
+extern int mpc60x_get_current_exception (rtems_raw_except_connect_data*);
+
+/*
+ * C callable function enabling to remove one current raw idt entry
+ */
+extern int mpc60x_delete_exception (const rtems_raw_except_connect_data*);
+
+/*
+ * C callable function enabling to check if vector is valid
+ */
+extern int mpc750_vector_is_valid(rtems_vector vector);
+
+inline static  void* mpc60x_get_vector_addr(rtems_vector vector)
+{
+  return ((void*)  (((unsigned) vector) << 8));
+}
+/*
+ * Exception global init.
+ */
+extern int mpc60x_init_exceptions (rtems_raw_except_global_settings* config);
+extern int mpc60x_get_exception_config (rtems_raw_except_global_settings** config);
+
+# endif /* ASM */
+
+#endif
+