5 files changed, 825 insertions, 0 deletions

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 5aab1acabf1c..b08d59e39a48 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -71,6 +71,12 @@ config XTENSA_VARIANT_DC232B
         help
           This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
 
+config XTENSA_VARIANT_DC233C
+        bool "dc233c - Diamond 233L Standard Core Rev.C (LE)"
+        select MMU
+        help
+          This variant refers to Tensilica's Diamond 233L Standard core Rev.C (LE).
+
 config XTENSA_VARIANT_S6000
         bool "s6000 - Stretch software configurable processor"
         select VARIANT_IRQ_SWITCH
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 48c1a5b3bd35..afec8f000c4a 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -15,6 +15,7 @@
 
 variant-$(CONFIG_XTENSA_VARIANT_FSF)            := fsf
 variant-$(CONFIG_XTENSA_VARIANT_DC232B)         := dc232b
+variant-$(CONFIG_XTENSA_VARIANT_DC233C)         := dc233c
 variant-$(CONFIG_XTENSA_VARIANT_S6000)          := s6000
 variant-$(CONFIG_XTENSA_VARIANT_LINUX_CUSTOM)   := custom
 
diff --git a/arch/xtensa/variants/dc233c/include/variant/core.h b/arch/xtensa/variants/dc233c/include/variant/core.h
new file mode 100644
index 000000000000..3a2e53b94930
--- /dev/null
+++ b/arch/xtensa/variants/dc233c/include/variant/core.h
@@ -0,0 +1,475 @@
+/* 
+ * xtensa/config/core-isa.h -- HAL definitions that are dependent on Xtensa
+ *                              processor CORE configuration
+ *
+ *  See <xtensa/config/core.h>, which includes this file, for more details.
+ */
+
+/* Xtensa processor core configuration information.
+
+   Copyright (c) 1999-2010 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_CORE_CONFIGURATION_H
+#define _XTENSA_CORE_CONFIGURATION_H
+
+
+/****************************************************************************
+            Parameters Useful for Any Code, USER or PRIVILEGED
+ ****************************************************************************/
+
+/*
+ *  Note:  Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is
+ *  configured, and a value of 0 otherwise.  These macros are always defined.
+ */
+
+
+/*----------------------------------------------------------------------
+                                ISA
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_BE                   0       /* big-endian byte ordering */
+#define XCHAL_HAVE_WINDOWED             1       /* windowed registers option */
+#define XCHAL_NUM_AREGS                 32      /* num of physical addr regs */
+#define XCHAL_NUM_AREGS_LOG2            5       /* log2(XCHAL_NUM_AREGS) */
+#define XCHAL_MAX_INSTRUCTION_SIZE      3       /* max instr bytes (3..8) */
+#define XCHAL_HAVE_DEBUG                1       /* debug option */
+#define XCHAL_HAVE_DENSITY              1       /* 16-bit instructions */
+#define XCHAL_HAVE_LOOPS                1       /* zero-overhead loops */
+#define XCHAL_HAVE_NSA                  1       /* NSA/NSAU instructions */
+#define XCHAL_HAVE_MINMAX               1       /* MIN/MAX instructions */
+#define XCHAL_HAVE_SEXT                 1       /* SEXT instruction */
+#define XCHAL_HAVE_CLAMPS               1       /* CLAMPS instruction */
+#define XCHAL_HAVE_MUL16                1       /* MUL16S/MUL16U instructions */
+#define XCHAL_HAVE_MUL32                1       /* MULL instruction */
+#define XCHAL_HAVE_MUL32_HIGH           0       /* MULUH/MULSH instructions */
+#define XCHAL_HAVE_DIV32                1       /* QUOS/QUOU/REMS/REMU instructions */
+#define XCHAL_HAVE_L32R                 1       /* L32R instruction */
+#define XCHAL_HAVE_ABSOLUTE_LITERALS    1       /* non-PC-rel (extended) L32R */
+#define XCHAL_HAVE_CONST16              0       /* CONST16 instruction */
+#define XCHAL_HAVE_ADDX                 1       /* ADDX#/SUBX# instructions */
+#define XCHAL_HAVE_WIDE_BRANCHES        0       /* B*.W18 or B*.W15 instr's */
+#define XCHAL_HAVE_PREDICTED_BRANCHES   0       /* B[EQ/EQZ/NE/NEZ]T instr's */
+#define XCHAL_HAVE_CALL4AND12           1       /* (obsolete option) */
+#define XCHAL_HAVE_ABS                  1       /* ABS instruction */
+/*#define XCHAL_HAVE_POPC               0*/     /* POPC instruction */
+/*#define XCHAL_HAVE_CRC                0*/     /* CRC instruction */
+#define XCHAL_HAVE_RELEASE_SYNC         1       /* L32AI/S32RI instructions */
+#define XCHAL_HAVE_S32C1I               1       /* S32C1I instruction */
+#define XCHAL_HAVE_SPECULATION          0       /* speculation */
+#define XCHAL_HAVE_FULL_RESET           1       /* all regs/state reset */
+#define XCHAL_NUM_CONTEXTS              1       /* */
+#define XCHAL_NUM_MISC_REGS             2       /* num of scratch regs (0..4) */
+#define XCHAL_HAVE_TAP_MASTER           0       /* JTAG TAP control instr's */
+#define XCHAL_HAVE_PRID                 1       /* processor ID register */
+#define XCHAL_HAVE_EXTERN_REGS          1       /* WER/RER instructions */
+#define XCHAL_HAVE_MP_INTERRUPTS        0       /* interrupt distributor port */
+#define XCHAL_HAVE_MP_RUNSTALL          0       /* core RunStall control port */
+#define XCHAL_HAVE_THREADPTR            1       /* THREADPTR register */
+#define XCHAL_HAVE_BOOLEANS             0       /* boolean registers */
+#define XCHAL_HAVE_CP                   1       /* CPENABLE reg (coprocessor) */
+#define XCHAL_CP_MAXCFG                 8       /* max allowed cp id plus one */
+#define XCHAL_HAVE_MAC16                1       /* MAC16 package */
+#define XCHAL_HAVE_VECTORFPU2005        0       /* vector floating-point pkg */
+#define XCHAL_HAVE_FP                   0       /* floating point pkg */
+#define XCHAL_HAVE_DFP                  0       /* double precision FP pkg */
+#define XCHAL_HAVE_DFP_accel            0       /* double precision FP acceleration pkg */
+#define XCHAL_HAVE_VECTRA1              0       /* Vectra I  pkg */
+#define XCHAL_HAVE_VECTRALX             0       /* Vectra LX pkg */
+#define XCHAL_HAVE_HIFIPRO              0       /* HiFiPro Audio Engine pkg */
+#define XCHAL_HAVE_HIFI2                0       /* HiFi2 Audio Engine pkg */
+#define XCHAL_HAVE_HIFI2EP      0       /* HiFi2EP */
+#define XCHAL_HAVE_CONNXD2              0       /* ConnX D2 pkg */
+#define XCHAL_HAVE_BBE16                0       /* ConnX BBE16 pkg */
+#define XCHAL_HAVE_BBE16_RSQRT          0       /* BBE16 & vector recip sqrt */
+#define XCHAL_HAVE_BBE16_VECDIV         0       /* BBE16 & vector divide */
+#define XCHAL_HAVE_BBE16_DESPREAD       0       /* BBE16 & despread */
+#define XCHAL_HAVE_BSP3                 0       /* ConnX BSP3 pkg */
+#define XCHAL_HAVE_SSP16                0       /* ConnX SSP16 pkg */
+#define XCHAL_HAVE_SSP16_VITERBI        0       /* SSP16 & viterbi */
+#define XCHAL_HAVE_TURBO16              0       /* ConnX Turbo16 pkg */
+#define XCHAL_HAVE_BBP16                0       /* ConnX BBP16 pkg */
+
+
+/*----------------------------------------------------------------------
+                                MISC
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_WRITEBUFFER_ENTRIES   8       /* size of write buffer */
+#define XCHAL_INST_FETCH_WIDTH          4       /* instr-fetch width in bytes */
+#define XCHAL_DATA_WIDTH                4       /* data width in bytes */
+/*  In T1050, applies to selected core load and store instructions (see ISA): */
+#define XCHAL_UNALIGNED_LOAD_EXCEPTION  1       /* unaligned loads cause exc. */
+#define XCHAL_UNALIGNED_STORE_EXCEPTION 1       /* unaligned stores cause exc.*/
+#define XCHAL_UNALIGNED_LOAD_HW         0       /* unaligned loads work in hw */
+#define XCHAL_UNALIGNED_STORE_HW        0       /* unaligned stores work in hw*/
+
+#define XCHAL_SW_VERSION                900001  /* sw version of this header */
+
+#define XCHAL_CORE_ID                   "dc233c"        /* alphanum core name
+                                                   (CoreID) set in the Xtensa
+                                                   Processor Generator */
+
+#define XCHAL_CORE_DESCRIPTION          "dc233c"
+#define XCHAL_BUILD_UNIQUE_ID           0x00004B21      /* 22-bit sw build ID */
+
+/*
+ *  These definitions describe the hardware targeted by this software.
+ */
+#define XCHAL_HW_CONFIGID0              0xC56707FE      /* ConfigID hi 32 bits*/
+#define XCHAL_HW_CONFIGID1              0x14404B21      /* ConfigID lo 32 bits*/
+#define XCHAL_HW_VERSION_NAME           "LX4.0.1"       /* full version name */
+#define XCHAL_HW_VERSION_MAJOR          2400    /* major ver# of targeted hw */
+#define XCHAL_HW_VERSION_MINOR          1       /* minor ver# of targeted hw */
+#define XCHAL_HW_VERSION                240001  /* major*100+minor */
+#define XCHAL_HW_REL_LX4                1
+#define XCHAL_HW_REL_LX4_0              1
+#define XCHAL_HW_REL_LX4_0_1            1
+#define XCHAL_HW_CONFIGID_RELIABLE      1
+/*  If software targets a *range* of hardware versions, these are the bounds: */
+#define XCHAL_HW_MIN_VERSION_MAJOR      2400    /* major v of earliest tgt hw */
+#define XCHAL_HW_MIN_VERSION_MINOR      1       /* minor v of earliest tgt hw */
+#define XCHAL_HW_MIN_VERSION            240001  /* earliest targeted hw */
+#define XCHAL_HW_MAX_VERSION_MAJOR      2400    /* major v of latest tgt hw */
+#define XCHAL_HW_MAX_VERSION_MINOR      1       /* minor v of latest tgt hw */
+#define XCHAL_HW_MAX_VERSION            240001  /* latest targeted hw */
+
+
+/*----------------------------------------------------------------------
+                                CACHE
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_ICACHE_LINESIZE           32      /* I-cache line size in bytes */
+#define XCHAL_DCACHE_LINESIZE           32      /* D-cache line size in bytes */
+#define XCHAL_ICACHE_LINEWIDTH          5       /* log2(I line size in bytes) */
+#define XCHAL_DCACHE_LINEWIDTH          5       /* log2(D line size in bytes) */
+
+#define XCHAL_ICACHE_SIZE               16384   /* I-cache size in bytes or 0 */
+#define XCHAL_DCACHE_SIZE               16384   /* D-cache size in bytes or 0 */
+
+#define XCHAL_DCACHE_IS_WRITEBACK       1       /* writeback feature */
+#define XCHAL_DCACHE_IS_COHERENT        0       /* MP coherence feature */
+
+#define XCHAL_HAVE_PREFETCH             0       /* PREFCTL register */
+
+
+
+
+/****************************************************************************
+    Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code
+ ****************************************************************************/
+
+
+#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY
+
+/*----------------------------------------------------------------------
+                                CACHE
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_PIF                  1       /* any outbound PIF present */
+
+/*  If present, cache size in bytes == (ways * 2^(linewidth + setwidth)).  */
+
+/*  Number of cache sets in log2(lines per way):  */
+#define XCHAL_ICACHE_SETWIDTH           7
+#define XCHAL_DCACHE_SETWIDTH           7
+
+/*  Cache set associativity (number of ways):  */
+#define XCHAL_ICACHE_WAYS               4
+#define XCHAL_DCACHE_WAYS               4
+
+/*  Cache features:  */
+#define XCHAL_ICACHE_LINE_LOCKABLE      1
+#define XCHAL_DCACHE_LINE_LOCKABLE      1
+#define XCHAL_ICACHE_ECC_PARITY         0
+#define XCHAL_DCACHE_ECC_PARITY         0
+
+/*  Cache access size in bytes (affects operation of SICW instruction):  */
+#define XCHAL_ICACHE_ACCESS_SIZE        4
+#define XCHAL_DCACHE_ACCESS_SIZE        4
+
+/*  Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits):  */
+#define XCHAL_CA_BITS                   4
+
+
+/*----------------------------------------------------------------------
+                        INTERNAL I/D RAM/ROMs and XLMI
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_NUM_INSTROM               0       /* number of core instr. ROMs */
+#define XCHAL_NUM_INSTRAM               0       /* number of core instr. RAMs */
+#define XCHAL_NUM_DATAROM               0       /* number of core data ROMs */
+#define XCHAL_NUM_DATARAM               0       /* number of core data RAMs */
+#define XCHAL_NUM_URAM                  0       /* number of core unified RAMs*/
+#define XCHAL_NUM_XLMI                  0       /* number of core XLMI ports */
+
+#define XCHAL_HAVE_IMEM_LOADSTORE       1       /* can load/store to IROM/IRAM*/
+
+
+/*----------------------------------------------------------------------
+                        INTERRUPTS and TIMERS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_INTERRUPTS           1       /* interrupt option */
+#define XCHAL_HAVE_HIGHPRI_INTERRUPTS   1       /* med/high-pri. interrupts */
+#define XCHAL_HAVE_NMI                  1       /* non-maskable interrupt */
+#define XCHAL_HAVE_CCOUNT               1       /* CCOUNT reg. (timer option) */
+#define XCHAL_NUM_TIMERS                3       /* number of CCOMPAREn regs */
+#define XCHAL_NUM_INTERRUPTS            22      /* number of interrupts */
+#define XCHAL_NUM_INTERRUPTS_LOG2       5       /* ceil(log2(NUM_INTERRUPTS)) */
+#define XCHAL_NUM_EXTINTERRUPTS         17      /* num of external interrupts */
+#define XCHAL_NUM_INTLEVELS             6       /* number of interrupt levels
+                                                   (not including level zero) */
+#define XCHAL_EXCM_LEVEL                3       /* level masked by PS.EXCM */
+        /* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */
+
+/*  Masks of interrupts at each interrupt level:  */
+#define XCHAL_INTLEVEL1_MASK            0x001F80FF
+#define XCHAL_INTLEVEL2_MASK            0x00000100
+#define XCHAL_INTLEVEL3_MASK            0x00200E00
+#define XCHAL_INTLEVEL4_MASK            0x00001000
+#define XCHAL_INTLEVEL5_MASK            0x00002000
+#define XCHAL_INTLEVEL6_MASK            0x00000000
+#define XCHAL_INTLEVEL7_MASK            0x00004000
+
+/*  Masks of interrupts at each range 1..n of interrupt levels:  */
+#define XCHAL_INTLEVEL1_ANDBELOW_MASK   0x001F80FF
+#define XCHAL_INTLEVEL2_ANDBELOW_MASK   0x001F81FF
+#define XCHAL_INTLEVEL3_ANDBELOW_MASK   0x003F8FFF
+#define XCHAL_INTLEVEL4_ANDBELOW_MASK   0x003F9FFF
+#define XCHAL_INTLEVEL5_ANDBELOW_MASK   0x003FBFFF
+#define XCHAL_INTLEVEL6_ANDBELOW_MASK   0x003FBFFF
+#define XCHAL_INTLEVEL7_ANDBELOW_MASK   0x003FFFFF
+
+/*  Level of each interrupt:  */
+#define XCHAL_INT0_LEVEL                1
+#define XCHAL_INT1_LEVEL                1
+#define XCHAL_INT2_LEVEL                1
+#define XCHAL_INT3_LEVEL                1
+#define XCHAL_INT4_LEVEL                1
+#define XCHAL_INT5_LEVEL                1
+#define XCHAL_INT6_LEVEL                1
+#define XCHAL_INT7_LEVEL                1
+#define XCHAL_INT8_LEVEL                2
+#define XCHAL_INT9_LEVEL                3
+#define XCHAL_INT10_LEVEL               3
+#define XCHAL_INT11_LEVEL               3
+#define XCHAL_INT12_LEVEL               4
+#define XCHAL_INT13_LEVEL               5
+#define XCHAL_INT14_LEVEL               7
+#define XCHAL_INT15_LEVEL               1
+#define XCHAL_INT16_LEVEL               1
+#define XCHAL_INT17_LEVEL               1
+#define XCHAL_INT18_LEVEL               1
+#define XCHAL_INT19_LEVEL               1
+#define XCHAL_INT20_LEVEL               1
+#define XCHAL_INT21_LEVEL               3
+#define XCHAL_DEBUGLEVEL                6       /* debug interrupt level */
+#define XCHAL_HAVE_DEBUG_EXTERN_INT     1       /* OCD external db interrupt */
+#define XCHAL_NMILEVEL                  7       /* NMI "level" (for use with
+                                                   EXCSAVE/EPS/EPC_n, RFI n) */
+
+/*  Type of each interrupt:  */
+#define XCHAL_INT0_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT1_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT2_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT3_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT4_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT5_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT6_TYPE         XTHAL_INTTYPE_TIMER
+#define XCHAL_INT7_TYPE         XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT8_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT9_TYPE         XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT10_TYPE        XTHAL_INTTYPE_TIMER
+#define XCHAL_INT11_TYPE        XTHAL_INTTYPE_SOFTWARE
+#define XCHAL_INT12_TYPE        XTHAL_INTTYPE_EXTERN_LEVEL
+#define XCHAL_INT13_TYPE        XTHAL_INTTYPE_TIMER
+#define XCHAL_INT14_TYPE        XTHAL_INTTYPE_NMI
+#define XCHAL_INT15_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT16_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT17_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT18_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT19_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT20_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+#define XCHAL_INT21_TYPE        XTHAL_INTTYPE_EXTERN_EDGE
+
+/*  Masks of interrupts for each type of interrupt:  */
+#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFC00000
+#define XCHAL_INTTYPE_MASK_SOFTWARE     0x00000880
+#define XCHAL_INTTYPE_MASK_EXTERN_EDGE  0x003F8000
+#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000133F
+#define XCHAL_INTTYPE_MASK_TIMER        0x00002440
+#define XCHAL_INTTYPE_MASK_NMI          0x00004000
+#define XCHAL_INTTYPE_MASK_WRITE_ERROR  0x00000000
+
+/*  Interrupt numbers assigned to specific interrupt sources:  */
+#define XCHAL_TIMER0_INTERRUPT          6       /* CCOMPARE0 */
+#define XCHAL_TIMER1_INTERRUPT          10      /* CCOMPARE1 */
+#define XCHAL_TIMER2_INTERRUPT          13      /* CCOMPARE2 */
+#define XCHAL_TIMER3_INTERRUPT          XTHAL_TIMER_UNCONFIGURED
+#define XCHAL_NMI_INTERRUPT             14      /* non-maskable interrupt */
+
+/*  Interrupt numbers for levels at which only one interrupt is configured:  */
+#define XCHAL_INTLEVEL2_NUM             8
+#define XCHAL_INTLEVEL4_NUM             12
+#define XCHAL_INTLEVEL5_NUM             13
+#define XCHAL_INTLEVEL7_NUM             14
+/*  (There are many interrupts each at level(s) 1, 3.)  */
+
+
+/*
+ *  External interrupt vectors/levels.
+ *  These macros describe how Xtensa processor interrupt numbers
+ *  (as numbered internally, eg. in INTERRUPT and INTENABLE registers)
+ *  map to external BInterrupt<n> pins, for those interrupts
+ *  configured as external (level-triggered, edge-triggered, or NMI).
+ *  See the Xtensa processor databook for more details.
+ */
+
+/*  Core interrupt numbers mapped to each EXTERNAL interrupt number:  */
+#define XCHAL_EXTINT0_NUM               0       /* (intlevel 1) */
+#define XCHAL_EXTINT1_NUM               1       /* (intlevel 1) */
+#define XCHAL_EXTINT2_NUM               2       /* (intlevel 1) */
+#define XCHAL_EXTINT3_NUM               3       /* (intlevel 1) */
+#define XCHAL_EXTINT4_NUM               4       /* (intlevel 1) */
+#define XCHAL_EXTINT5_NUM               5       /* (intlevel 1) */
+#define XCHAL_EXTINT6_NUM               8       /* (intlevel 2) */
+#define XCHAL_EXTINT7_NUM               9       /* (intlevel 3) */
+#define XCHAL_EXTINT8_NUM               12      /* (intlevel 4) */
+#define XCHAL_EXTINT9_NUM               14      /* (intlevel 7) */
+#define XCHAL_EXTINT10_NUM              15      /* (intlevel 1) */
+#define XCHAL_EXTINT11_NUM              16      /* (intlevel 1) */
+#define XCHAL_EXTINT12_NUM              17      /* (intlevel 1) */
+#define XCHAL_EXTINT13_NUM              18      /* (intlevel 1) */
+#define XCHAL_EXTINT14_NUM              19      /* (intlevel 1) */
+#define XCHAL_EXTINT15_NUM              20      /* (intlevel 1) */
+#define XCHAL_EXTINT16_NUM              21      /* (intlevel 3) */
+
+
+/*----------------------------------------------------------------------
+                        EXCEPTIONS and VECTORS
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_XEA_VERSION               2       /* Xtensa Exception Architecture
+                                                   number: 1 == XEA1 (old)
+                                                           2 == XEA2 (new)
+                                                           0 == XEAX (extern) or TX */
+#define XCHAL_HAVE_XEA1                 0       /* Exception Architecture 1 */
+#define XCHAL_HAVE_XEA2                 1       /* Exception Architecture 2 */
+#define XCHAL_HAVE_XEAX                 0       /* External Exception Arch. */
+#define XCHAL_HAVE_EXCEPTIONS           1       /* exception option */
+#define XCHAL_HAVE_HALT                 0       /* halt architecture option */
+#define XCHAL_HAVE_BOOTLOADER           0       /* boot loader (for TX) */
+#define XCHAL_HAVE_MEM_ECC_PARITY       0       /* local memory ECC/parity */
+#define XCHAL_HAVE_VECTOR_SELECT        1       /* relocatable vectors */
+#define XCHAL_HAVE_VECBASE              1       /* relocatable vectors */
+#define XCHAL_VECBASE_RESET_VADDR       0x00002000  /* VECBASE reset value */
+#define XCHAL_VECBASE_RESET_PADDR       0x00002000
+#define XCHAL_RESET_VECBASE_OVERLAP     0
+
+#define XCHAL_RESET_VECTOR0_VADDR       0xFE000000
+#define XCHAL_RESET_VECTOR0_PADDR       0xFE000000
+#define XCHAL_RESET_VECTOR1_VADDR       0x00001000
+#define XCHAL_RESET_VECTOR1_PADDR       0x00001000
+#define XCHAL_RESET_VECTOR_VADDR        0xFE000000
+#define XCHAL_RESET_VECTOR_PADDR        0xFE000000
+#define XCHAL_USER_VECOFS               0x00000340
+#define XCHAL_USER_VECTOR_VADDR         0x00002340
+#define XCHAL_USER_VECTOR_PADDR         0x00002340
+#define XCHAL_KERNEL_VECOFS             0x00000300
+#define XCHAL_KERNEL_VECTOR_VADDR       0x00002300
+#define XCHAL_KERNEL_VECTOR_PADDR       0x00002300
+#define XCHAL_DOUBLEEXC_VECOFS          0x000003C0
+#define XCHAL_DOUBLEEXC_VECTOR_VADDR    0x000023C0
+#define XCHAL_DOUBLEEXC_VECTOR_PADDR    0x000023C0
+#define XCHAL_WINDOW_OF4_VECOFS         0x00000000
+#define XCHAL_WINDOW_UF4_VECOFS         0x00000040
+#define XCHAL_WINDOW_OF8_VECOFS         0x00000080
+#define XCHAL_WINDOW_UF8_VECOFS         0x000000C0
+#define XCHAL_WINDOW_OF12_VECOFS        0x00000100
+#define XCHAL_WINDOW_UF12_VECOFS        0x00000140
+#define XCHAL_WINDOW_VECTORS_VADDR      0x00002000
+#define XCHAL_WINDOW_VECTORS_PADDR      0x00002000
+#define XCHAL_INTLEVEL2_VECOFS          0x00000180
+#define XCHAL_INTLEVEL2_VECTOR_VADDR    0x00002180
+#define XCHAL_INTLEVEL2_VECTOR_PADDR    0x00002180
+#define XCHAL_INTLEVEL3_VECOFS          0x000001C0
+#define XCHAL_INTLEVEL3_VECTOR_VADDR    0x000021C0
+#define XCHAL_INTLEVEL3_VECTOR_PADDR    0x000021C0
+#define XCHAL_INTLEVEL4_VECOFS          0x00000200
+#define XCHAL_INTLEVEL4_VECTOR_VADDR    0x00002200
+#define XCHAL_INTLEVEL4_VECTOR_PADDR    0x00002200
+#define XCHAL_INTLEVEL5_VECOFS          0x00000240
+#define XCHAL_INTLEVEL5_VECTOR_VADDR    0x00002240
+#define XCHAL_INTLEVEL5_VECTOR_PADDR    0x00002240
+#define XCHAL_INTLEVEL6_VECOFS          0x00000280
+#define XCHAL_INTLEVEL6_VECTOR_VADDR    0x00002280
+#define XCHAL_INTLEVEL6_VECTOR_PADDR    0x00002280
+#define XCHAL_DEBUG_VECOFS              XCHAL_INTLEVEL6_VECOFS
+#define XCHAL_DEBUG_VECTOR_VADDR        XCHAL_INTLEVEL6_VECTOR_VADDR
+#define XCHAL_DEBUG_VECTOR_PADDR        XCHAL_INTLEVEL6_VECTOR_PADDR
+#define XCHAL_NMI_VECOFS                0x000002C0
+#define XCHAL_NMI_VECTOR_VADDR          0x000022C0
+#define XCHAL_NMI_VECTOR_PADDR          0x000022C0
+#define XCHAL_INTLEVEL7_VECOFS          XCHAL_NMI_VECOFS
+#define XCHAL_INTLEVEL7_VECTOR_VADDR    XCHAL_NMI_VECTOR_VADDR
+#define XCHAL_INTLEVEL7_VECTOR_PADDR    XCHAL_NMI_VECTOR_PADDR
+
+
+/*----------------------------------------------------------------------
+                                DEBUG
+  ----------------------------------------------------------------------*/
+
+#define XCHAL_HAVE_OCD                  1       /* OnChipDebug option */
+#define XCHAL_NUM_IBREAK                2       /* number of IBREAKn regs */
+#define XCHAL_NUM_DBREAK                2       /* number of DBREAKn regs */
+#define XCHAL_HAVE_OCD_DIR_ARRAY        1       /* faster OCD option */
+
+
+/*----------------------------------------------------------------------
+                                MMU
+  ----------------------------------------------------------------------*/
+
+/*  See core-matmap.h header file for more details.  */
+
+#define XCHAL_HAVE_TLBS                 1       /* inverse of HAVE_CACHEATTR */
+#define XCHAL_HAVE_SPANNING_WAY         1       /* one way maps I+D 4GB vaddr */
+#define XCHAL_SPANNING_WAY              6       /* TLB spanning way number */
+#define XCHAL_HAVE_IDENTITY_MAP         0       /* vaddr == paddr always */
+#define XCHAL_HAVE_CACHEATTR            0       /* CACHEATTR register present */
+#define XCHAL_HAVE_MIMIC_CACHEATTR      0       /* region protection */
+#define XCHAL_HAVE_XLT_CACHEATTR        0       /* region prot. w/translation */
+#define XCHAL_HAVE_PTP_MMU              1       /* full MMU (with page table
+                                                   [autorefill] and protection)
+                                                   usable for an MMU-based OS */
+/*  If none of the above last 4 are set, it's a custom TLB configuration.  */
+#define XCHAL_ITLB_ARF_ENTRIES_LOG2     2       /* log2(autorefill way size) */
+#define XCHAL_DTLB_ARF_ENTRIES_LOG2     2       /* log2(autorefill way size) */
+
+#define XCHAL_MMU_ASID_BITS             8       /* number of bits in ASIDs */
+#define XCHAL_MMU_RINGS                 4       /* number of rings (1..4) */
+#define XCHAL_MMU_RING_BITS             2       /* num of bits in RING field */
+
+#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */
+
+
+#endif /* _XTENSA_CORE_CONFIGURATION_H */
+
diff --git a/arch/xtensa/variants/dc233c/include/variant/tie-asm.h b/arch/xtensa/variants/dc233c/include/variant/tie-asm.h
new file mode 100644
index 000000000000..5dbd981ea424
--- /dev/null
+++ b/arch/xtensa/variants/dc233c/include/variant/tie-asm.h
@@ -0,0 +1,193 @@
+/* 
+ * tie-asm.h -- compile-time HAL assembler definitions dependent on CORE & TIE
+ *
+ *  NOTE:  This header file is not meant to be included directly.
+ */
+
+/* This header file contains assembly-language definitions (assembly
+   macros, etc.) for this specific Xtensa processor's TIE extensions
+   and options.  It is customized to this Xtensa processor configuration.
+
+   Copyright (c) 1999-2010 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_CORE_TIE_ASM_H
+#define _XTENSA_CORE_TIE_ASM_H
+
+/*  Selection parameter values for save-area save/restore macros:  */
+/*  Option vs. TIE:  */
+#define XTHAL_SAS_TIE   0x0001  /* custom extension or coprocessor */
+#define XTHAL_SAS_OPT   0x0002  /* optional (and not a coprocessor) */
+#define XTHAL_SAS_ANYOT 0x0003  /* both of the above */
+/*  Whether used automatically by compiler:  */
+#define XTHAL_SAS_NOCC  0x0004  /* not used by compiler w/o special opts/code */
+#define XTHAL_SAS_CC    0x0008  /* used by compiler without special opts/code */
+#define XTHAL_SAS_ANYCC 0x000C  /* both of the above */
+/*  ABI handling across function calls:  */
+#define XTHAL_SAS_CALR  0x0010  /* caller-saved */
+#define XTHAL_SAS_CALE  0x0020  /* callee-saved */
+#define XTHAL_SAS_GLOB  0x0040  /* global across function calls (in thread) */
+#define XTHAL_SAS_ANYABI 0x0070 /* all of the above three */
+/*  Misc  */
+#define XTHAL_SAS_ALL   0xFFFF  /* include all default NCP contents */
+#define XTHAL_SAS3(optie,ccuse,abi)     ( ((optie) & XTHAL_SAS_ANYOT)  \
+                                        | ((ccuse) & XTHAL_SAS_ANYCC)  \
+                                        | ((abi)   & XTHAL_SAS_ANYABI) )
+
+
+
+    /*
+     *  Macro to save all non-coprocessor (extra) custom TIE and optional state
+     *  (not including zero-overhead loop registers).
+     *  Required parameters:
+     *      ptr         Save area pointer address register (clobbered)
+     *                  (register must contain a 4 byte aligned address).
+     *      at1..at4    Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
+     *                  registers are clobbered, the remaining are unused).
+     *  Optional parameters:
+     *      continue    If macro invoked as part of a larger store sequence, set to 1
+     *                  if this is not the first in the sequence.  Defaults to 0.
+     *      ofs         Offset from start of larger sequence (from value of first ptr
+     *                  in sequence) at which to store.  Defaults to next available space
+     *                  (or 0 if <continue> is 0).
+     *      select      Select what category(ies) of registers to store, as a bitmask
+     *                  (see XTHAL_SAS_xxx constants).  Defaults to all registers.
+     *      alloc       Select what category(ies) of registers to allocate; if any
+     *                  category is selected here that is not in <select>, space for
+     *                  the corresponding registers is skipped without doing any store.
+     */
+    .macro xchal_ncp_store  ptr at1 at2 at3 at4  continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
+        xchal_sa_start  \continue, \ofs
+        // Optional global register used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1020, 4, 4
+        rur.THREADPTR   \at1            // threadptr option
+        s32i    \at1, \ptr, .Lxchal_ofs_+0
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 4
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1020, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 4
+        .endif
+        // Optional caller-saved registers used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1016, 4, 4
+        rsr     \at1, ACCLO                     // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+0
+        rsr     \at1, ACCHI                     // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 8
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1016, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 8
+        .endif
+        // Optional caller-saved registers not used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1004, 4, 4
+        rsr     \at1, M0                        // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+0
+        rsr     \at1, M1                        // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+4
+        rsr     \at1, M2                        // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+8
+        rsr     \at1, M3                        // MAC16 option
+        s32i    \at1, \ptr, .Lxchal_ofs_+12
+        rsr     \at1, SCOMPARE1                 // conditional store option
+        s32i    \at1, \ptr, .Lxchal_ofs_+16
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 20
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1004, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 20
+        .endif
+    .endm       // xchal_ncp_store
+
+    /*
+     *  Macro to restore all non-coprocessor (extra) custom TIE and optional state
+     *  (not including zero-overhead loop registers).
+     *  Required parameters:
+     *      ptr         Save area pointer address register (clobbered)
+     *                  (register must contain a 4 byte aligned address).
+     *      at1..at4    Four temporary address registers (first XCHAL_NCP_NUM_ATMPS
+     *                  registers are clobbered, the remaining are unused).
+     *  Optional parameters:
+     *      continue    If macro invoked as part of a larger load sequence, set to 1
+     *                  if this is not the first in the sequence.  Defaults to 0.
+     *      ofs         Offset from start of larger sequence (from value of first ptr
+     *                  in sequence) at which to load.  Defaults to next available space
+     *                  (or 0 if <continue> is 0).
+     *      select      Select what category(ies) of registers to load, as a bitmask
+     *                  (see XTHAL_SAS_xxx constants).  Defaults to all registers.
+     *      alloc       Select what category(ies) of registers to allocate; if any
+     *                  category is selected here that is not in <select>, space for
+     *                  the corresponding registers is skipped without doing any load.
+     */
+    .macro xchal_ncp_load  ptr at1 at2 at3 at4  continue=0 ofs=-1 select=XTHAL_SAS_ALL alloc=0
+        xchal_sa_start  \continue, \ofs
+        // Optional global register used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1020, 4, 4
+        l32i    \at1, \ptr, .Lxchal_ofs_+0
+        wur.THREADPTR   \at1            // threadptr option
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 4
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_GLOB) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1020, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 4
+        .endif
+        // Optional caller-saved registers used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1016, 4, 4
+        l32i    \at1, \ptr, .Lxchal_ofs_+0
+        wsr     \at1, ACCLO                     // MAC16 option
+        l32i    \at1, \ptr, .Lxchal_ofs_+4
+        wsr     \at1, ACCHI                     // MAC16 option
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 8
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_CC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1016, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 8
+        .endif
+        // Optional caller-saved registers not used by default by the compiler:
+        .ifeq (XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\select)
+        xchal_sa_align  \ptr, 0, 1004, 4, 4
+        l32i    \at1, \ptr, .Lxchal_ofs_+0
+        wsr     \at1, M0                        // MAC16 option
+        l32i    \at1, \ptr, .Lxchal_ofs_+4
+        wsr     \at1, M1                        // MAC16 option
+        l32i    \at1, \ptr, .Lxchal_ofs_+8
+        wsr     \at1, M2                        // MAC16 option
+        l32i    \at1, \ptr, .Lxchal_ofs_+12
+        wsr     \at1, M3                        // MAC16 option
+        l32i    \at1, \ptr, .Lxchal_ofs_+16
+        wsr     \at1, SCOMPARE1                 // conditional store option
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 20
+        .elseif ((XTHAL_SAS_OPT | XTHAL_SAS_NOCC | XTHAL_SAS_CALR) & ~(\alloc)) == 0
+        xchal_sa_align  \ptr, 0, 1004, 4, 4
+        .set    .Lxchal_ofs_, .Lxchal_ofs_ + 20
+        .endif
+    .endm       // xchal_ncp_load
+
+
+#define XCHAL_NCP_NUM_ATMPS     1
+
+
+
+#define XCHAL_SA_NUM_ATMPS      1
+
+#endif /*_XTENSA_CORE_TIE_ASM_H*/
+
diff --git a/arch/xtensa/variants/dc233c/include/variant/tie.h b/arch/xtensa/variants/dc233c/include/variant/tie.h
new file mode 100644
index 000000000000..815e52bc3d00
--- /dev/null
+++ b/arch/xtensa/variants/dc233c/include/variant/tie.h
@@ -0,0 +1,150 @@
+/* 
+ * tie.h -- compile-time HAL definitions dependent on CORE & TIE configuration
+ *
+ *  NOTE:  This header file is not meant to be included directly.
+ */
+
+/* This header file describes this specific Xtensa processor's TIE extensions
+   that extend basic Xtensa core functionality.  It is customized to this
+   Xtensa processor configuration.
+
+   Copyright (c) 1999-2010 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_CORE_TIE_H
+#define _XTENSA_CORE_TIE_H
+
+#define XCHAL_CP_NUM                    1       /* number of coprocessors */
+#define XCHAL_CP_MAX                    8       /* max CP ID + 1 (0 if none) */
+#define XCHAL_CP_MASK                   0x80    /* bitmask of all CPs by ID */
+#define XCHAL_CP_PORT_MASK              0x80    /* bitmask of only port CPs */
+
+/*  Basic parameters of each coprocessor:  */
+#define XCHAL_CP7_NAME                  "XTIOP"
+#define XCHAL_CP7_IDENT                 XTIOP
+#define XCHAL_CP7_SA_SIZE               0       /* size of state save area */
+#define XCHAL_CP7_SA_ALIGN              1       /* min alignment of save area */
+#define XCHAL_CP_ID_XTIOP               7       /* coprocessor ID (0..7) */
+
+/*  Filler info for unassigned coprocessors, to simplify arrays etc:  */
+#define XCHAL_CP0_SA_SIZE               0
+#define XCHAL_CP0_SA_ALIGN              1
+#define XCHAL_CP1_SA_SIZE               0
+#define XCHAL_CP1_SA_ALIGN              1
+#define XCHAL_CP2_SA_SIZE               0
+#define XCHAL_CP2_SA_ALIGN              1
+#define XCHAL_CP3_SA_SIZE               0
+#define XCHAL_CP3_SA_ALIGN              1
+#define XCHAL_CP4_SA_SIZE               0
+#define XCHAL_CP4_SA_ALIGN              1
+#define XCHAL_CP5_SA_SIZE               0
+#define XCHAL_CP5_SA_ALIGN              1
+#define XCHAL_CP6_SA_SIZE               0
+#define XCHAL_CP6_SA_ALIGN              1
+
+/*  Save area for non-coprocessor optional and custom (TIE) state:  */
+#define XCHAL_NCP_SA_SIZE               32
+#define XCHAL_NCP_SA_ALIGN              4
+
+/*  Total save area for optional and custom state (NCP + CPn):  */
+#define XCHAL_TOTAL_SA_SIZE             32      /* with 16-byte align padding */
+#define XCHAL_TOTAL_SA_ALIGN            4       /* actual minimum alignment */
+
+/*
+ * Detailed contents of save areas.
+ * NOTE:  caller must define the XCHAL_SA_REG macro (not defined here)
+ * before expanding the XCHAL_xxx_SA_LIST() macros.
+ *
+ * XCHAL_SA_REG(s,ccused,abikind,kind,opt,name,galign,align,asize,
+ *              dbnum,base,regnum,bitsz,gapsz,reset,x...)
+ *
+ *      s = passed from XCHAL_*_LIST(s), eg. to select how to expand
+ *      ccused = set if used by compiler without special options or code
+ *      abikind = 0 (caller-saved), 1 (callee-saved), or 2 (thread-global)
+ *      kind = 0 (special reg), 1 (TIE user reg), or 2 (TIE regfile reg)
+ *      opt = 0 (custom TIE extension or coprocessor), or 1 (optional reg)
+ *      name = lowercase reg name (no quotes)
+ *      galign = group byte alignment (power of 2) (galign >= align)
+ *      align = register byte alignment (power of 2)
+ *      asize = allocated size in bytes (asize*8 == bitsz + gapsz + padsz)
+ *        (not including any pad bytes required to galign this or next reg)
+ *      dbnum = unique target number f/debug (see <xtensa-libdb-macros.h>)
+ *      base = reg shortname w/o index (or sr=special, ur=TIE user reg)
+ *      regnum = reg index in regfile, or special/TIE-user reg number
+ *      bitsz = number of significant bits (regfile width, or ur/sr mask bits)
+ *      gapsz = intervening bits, if bitsz bits not stored contiguously
+ *      (padsz = pad bits at end [TIE regfile] or at msbits [ur,sr] of asize)
+ *      reset = register reset value (or 0 if undefined at reset)
+ *      x = reserved for future use (0 until then)
+ *
+ *  To filter out certain registers, e.g. to expand only the non-global
+ *  registers used by the compiler, you can do something like this:
+ *
+ *  #define XCHAL_SA_REG(s,ccused,p...) SELCC##ccused(p)
+ *  #define SELCC0(p...)
+ *  #define SELCC1(abikind,p...)        SELAK##abikind(p)
+ *  #define SELAK0(p...)                REG(p)
+ *  #define SELAK1(p...)                REG(p)
+ *  #define SELAK2(p...)
+ *  #define REG(kind,tie,name,galn,aln,asz,csz,dbnum,base,rnum,bsz,rst,x...) \
+ *              ...what you want to expand...
+ */
+
+#define XCHAL_NCP_SA_NUM        8
+#define XCHAL_NCP_SA_LIST(s)    \
+ XCHAL_SA_REG(s,1,2,1,1,      threadptr, 4, 4, 4,0x03E7,  ur,231, 32,0,0,0) \
+ XCHAL_SA_REG(s,1,0,0,1,          acclo, 4, 4, 4,0x0210,  sr,16 , 32,0,0,0) \
+ XCHAL_SA_REG(s,1,0,0,1,          acchi, 4, 4, 4,0x0211,  sr,17 ,  8,0,0,0) \
+ XCHAL_SA_REG(s,0,0,0,1,             m0, 4, 4, 4,0x0220,  sr,32 , 32,0,0,0) \
+ XCHAL_SA_REG(s,0,0,0,1,             m1, 4, 4, 4,0x0221,  sr,33 , 32,0,0,0) \
+ XCHAL_SA_REG(s,0,0,0,1,             m2, 4, 4, 4,0x0222,  sr,34 , 32,0,0,0) \
+ XCHAL_SA_REG(s,0,0,0,1,             m3, 4, 4, 4,0x0223,  sr,35 , 32,0,0,0) \
+ XCHAL_SA_REG(s,0,0,0,1,      scompare1, 4, 4, 4,0x020C,  sr,12 , 32,0,0,0)
+
+#define XCHAL_CP0_SA_NUM        0
+#define XCHAL_CP0_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP1_SA_NUM        0
+#define XCHAL_CP1_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP2_SA_NUM        0
+#define XCHAL_CP2_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP3_SA_NUM        0
+#define XCHAL_CP3_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP4_SA_NUM        0
+#define XCHAL_CP4_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP5_SA_NUM        0
+#define XCHAL_CP5_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP6_SA_NUM        0
+#define XCHAL_CP6_SA_LIST(s)    /* empty */
+
+#define XCHAL_CP7_SA_NUM        0
+#define XCHAL_CP7_SA_LIST(s)    /* empty */
+
+/* Byte length of instruction from its first nibble (op0 field), per FLIX.  */
+#define XCHAL_OP0_FORMAT_LENGTHS        3,3,3,3,3,3,3,3,2,2,2,2,2,2,3,3
+
+#endif /*_XTENSA_CORE_TIE_H*/
+