xtensa: add config and overlay for dc233c core

This adds the config and overlay files for dc233c core which
can be used with QEMU to test MMU.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>

zephyr/soc/dc233c/xtensa/config/defs.h

@@ -0,0 +1,37 @@
+/* Definitions for Xtensa instructions, types, and protos. */
+
+/* Copyright (c) 2003-2004 Tensilica Inc.
+
+   Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software and associated documentation files (the
+   "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be included
+   in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+   CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+   TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+   SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+/* NOTE: This file exists only for backward compatibility with T1050
+   and earlier Xtensa releases.  It includes only a subset of the
+   available header files.  */
+
+#ifndef _XTENSA_BASE_HEADER
+#define _XTENSA_BASE_HEADER
+
+#ifdef __XTENSA__
+
+#include <xtensa/tie/xt_core.h>
+#include <xtensa/tie/xt_misc.h>
+
+#endif /* __XTENSA__ */
+#endif /* !_XTENSA_BASE_HEADER */

zephyr/soc/dc233c/xtensa/config/specreg.h

@@ -0,0 +1,118 @@
+/*
+ * Xtensa Special Register symbolic names
+ */
+
+/* $Id: //depot/rel/Boreal/Xtensa/SWConfig/hal/specreg.h.tpp#2 $ */
+
+/* Copyright (c) 1998-2002 Tensilica Inc.
+
+   Permission is hereby granted, free of charge, to any person obtaining
+   a copy of this software and associated documentation files (the
+   "Software"), to deal in the Software without restriction, including
+   without limitation the rights to use, copy, modify, merge, publish,
+   distribute, sublicense, and/or sell copies of the Software, and to
+   permit persons to whom the Software is furnished to do so, subject to
+   the following conditions:
+
+   The above copyright notice and this permission notice shall be included
+   in all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+   CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+   TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+   SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
+
+#ifndef XTENSA_SPECREG_H
+#define XTENSA_SPECREG_H
+
+/*  Include these special register bitfield definitions, for historical reasons:  */
+#include <xtensa/corebits.h>
+
+
+/*  Special registers:  */
+#define LBEG		0
+#define LEND		1
+#define LCOUNT		2
+#define SAR		3
+#define LITBASE		5
+#define SCOMPARE1	12
+#define ACCLO		16
+#define ACCHI		17
+#define MR_0		32
+#define MR_1		33
+#define MR_2		34
+#define MR_3		35
+#define WINDOWBASE	72
+#define WINDOWSTART	73
+#define PTEVADDR	83
+#define RASID		90
+#define ITLBCFG		91
+#define DTLBCFG		92
+#define IBREAKENABLE	96
+#define ATOMCTL		99
+#define DDR		104
+#define IBREAKA_0	128
+#define IBREAKA_1	129
+#define DBREAKA_0	144
+#define DBREAKA_1	145
+#define DBREAKC_0	160
+#define DBREAKC_1	161
+#define EPC_1		177
+#define EPC_2		178
+#define EPC_3		179
+#define EPC_4		180
+#define EPC_5		181
+#define EPC_6		182
+#define EPC_7		183
+#define DEPC		192
+#define EPS_2		194
+#define EPS_3		195
+#define EPS_4		196
+#define EPS_5		197
+#define EPS_6		198
+#define EPS_7		199
+#define EXCSAVE_1	209
+#define EXCSAVE_2	210
+#define EXCSAVE_3	211
+#define EXCSAVE_4	212
+#define EXCSAVE_5	213
+#define EXCSAVE_6	214
+#define EXCSAVE_7	215
+#define CPENABLE	224
+#define INTERRUPT	226
+#define INTENABLE	228
+#define PS		230
+#define VECBASE		231
+#define EXCCAUSE	232
+#define DEBUGCAUSE	233
+#define CCOUNT		234
+#define PRID		235
+#define ICOUNT		236
+#define ICOUNTLEVEL	237
+#define EXCVADDR	238
+#define CCOMPARE_0	240
+#define CCOMPARE_1	241
+#define CCOMPARE_2	242
+#define MISC_REG_0	244
+#define MISC_REG_1	245
+
+/*  Special cases (bases of special register series):  */
+#define MR		32
+#define IBREAKA		128
+#define DBREAKA		144
+#define DBREAKC		160
+#define EPC		176
+#define EPS		192
+#define EXCSAVE		208
+#define CCOMPARE	240
+
+/*  Special names for read-only and write-only interrupt registers:  */
+#define INTREAD		226
+#define INTSET		226
+#define INTCLEAR	227
+
+#endif /* XTENSA_SPECREG_H */
+