1 /* 2 * xtensa/config/system.h -- HAL definitions that are dependent on SYSTEM configuration 3 * 4 * NOTE: The location and contents of this file are highly subject to change. 5 * 6 * Source for configuration-independent binaries (which link in a 7 * configuration-specific HAL library) must NEVER include this file. 8 * The HAL itself has historically included this file in some instances, 9 * but this is not appropriate either, because the HAL is meant to be 10 * core-specific but system independent. 11 */ 12 13 /* Customer ID=14556; Build=0x7ef28; Copyright (c) 2000-2010 Tensilica Inc. 14 15 Permission is hereby granted, free of charge, to any person obtaining 16 a copy of this software and associated documentation files (the 17 "Software"), to deal in the Software without restriction, including 18 without limitation the rights to use, copy, modify, merge, publish, 19 distribute, sublicense, and/or sell copies of the Software, and to 20 permit persons to whom the Software is furnished to do so, subject to 21 the following conditions: 22 23 The above copyright notice and this permission notice shall be included 24 in all copies or substantial portions of the Software. 25 26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 29 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 30 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 31 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 32 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 33 34 35 #ifndef XTENSA_CONFIG_SYSTEM_H 36 #define XTENSA_CONFIG_SYSTEM_H 37 38 /*#include <xtensa/hal.h>*/ 39 40 41 42 /*---------------------------------------------------------------------- 43 CONFIGURED SOFTWARE OPTIONS 44 ----------------------------------------------------------------------*/ 45 46 #define XSHAL_USE_ABSOLUTE_LITERALS 0 /* (sw-only option, whether software uses absolute literals) */ 47 #define XSHAL_HAVE_TEXT_SECTION_LITERALS 1 /* Set if there is some memory that allows both code and literals. */ 48 49 #define XSHAL_ABI XTHAL_ABI_WINDOWED /* (sw-only option, selected ABI) */ 50 /* The above maps to one of the following constants: */ 51 #define XTHAL_ABI_WINDOWED 0 52 #define XTHAL_ABI_CALL0 1 53 /* Alternatives: */ 54 /*#define XSHAL_WINDOWED_ABI 1*/ /* set if windowed ABI selected */ 55 /*#define XSHAL_CALL0_ABI 0*/ /* set if call0 ABI selected */ 56 57 #define XSHAL_CLIB XTHAL_CLIB_NEWLIB /* (sw-only option, selected C library) */ 58 /* The above maps to one of the following constants: */ 59 #define XTHAL_CLIB_NEWLIB 0 60 #define XTHAL_CLIB_UCLIBC 1 61 #define XTHAL_CLIB_XCLIB 2 62 /* Alternatives: */ 63 /*#define XSHAL_NEWLIB 1*/ /* set if newlib C library selected */ 64 /*#define XSHAL_UCLIBC 0*/ /* set if uCLibC C library selected */ 65 /*#define XSHAL_XCLIB 0*/ /* set if Xtensa C library selected */ 66 67 #define XSHAL_USE_FLOATING_POINT 1 68 69 #define XSHAL_FLOATING_POINT_ABI 1 70 71 /* SW workarounds enabled for HW errata: */ 72 73 /*---------------------------------------------------------------------- 74 DEVICE ADDRESSES 75 ----------------------------------------------------------------------*/ 76 77 /* 78 * Strange place to find these, but the configuration GUI 79 * allows moving these around to account for various core 80 * configurations. Specific boards (and their BSP software) 81 * will have specific meanings for these components. 82 */ 83 84 /* I/O Block areas: */ 85 #define XSHAL_IOBLOCK_CACHED_VADDR 0x70000000 86 #define XSHAL_IOBLOCK_CACHED_PADDR 0x70000000 87 #define XSHAL_IOBLOCK_CACHED_SIZE 0x0E000000 88 89 #define XSHAL_IOBLOCK_BYPASS_VADDR 0x50000000 90 #define XSHAL_IOBLOCK_BYPASS_PADDR 0x50000000 91 #define XSHAL_IOBLOCK_BYPASS_SIZE 0x0E000000 92 93 /* System ROM: */ 94 #define XSHAL_ROM_VADDR 0x3B740000 95 #define XSHAL_ROM_PADDR 0x3B740000 96 #define XSHAL_ROM_SIZE 0x00030000 97 /* Largest available area (free of vectors): */ 98 #define XSHAL_ROM_AVAIL_VADDR 0x3B740000 99 #define XSHAL_ROM_AVAIL_VSIZE 0x00030000 100 101 /* System RAM: */ 102 #define XSHAL_RAM_VADDR 0x3B700000 103 #define XSHAL_RAM_PADDR 0x3B700000 104 #define XSHAL_RAM_VSIZE 0x00040000 105 #define XSHAL_RAM_PSIZE 0x00040000 106 #define XSHAL_RAM_SIZE XSHAL_RAM_PSIZE 107 /* Largest available area (free of vectors): */ 108 #define XSHAL_RAM_AVAIL_VADDR 0x3B700000 109 #define XSHAL_RAM_AVAIL_VSIZE 0x00040000 110 111 /* 112 * Shadow system RAM (same device as system RAM, at different address). 113 * (Emulation boards need this for the SONIC Ethernet driver 114 * when data caches are configured for writeback mode.) 115 * NOTE: on full MMU configs, this points to the BYPASS virtual address 116 * of system RAM, ie. is the same as XSHAL_RAM_* except that virtual 117 * addresses are viewed through the BYPASS static map rather than 118 * the CACHED static map. 119 */ 120 #define XSHAL_RAM_BYPASS_VADDR 0x80000000 121 #define XSHAL_RAM_BYPASS_PADDR 0x80000000 122 #define XSHAL_RAM_BYPASS_PSIZE 0x00040000 123 124 /* Alternate system RAM (different device than system RAM): */ 125 /*#define XSHAL_ALTRAM_[VP]ADDR ...not configured...*/ 126 /*#define XSHAL_ALTRAM_SIZE ...not configured...*/ 127 128 /* Some available location in which to place devices in a simulation (eg. XTMP): */ 129 #define XSHAL_SIMIO_CACHED_VADDR 0xC0000000 130 #define XSHAL_SIMIO_BYPASS_VADDR 0xC0000000 131 #define XSHAL_SIMIO_PADDR 0xC0000000 132 #define XSHAL_SIMIO_SIZE 0x20000000 133 134 135 /*---------------------------------------------------------------------- 136 * For use by reference testbench exit and diagnostic routines. 137 */ 138 #define XSHAL_MAGIC_EXIT 0x0 139 140 /*---------------------------------------------------------------------- 141 * DEVICE-ADDRESS DEPENDENT... 142 * 143 * Values written to CACHEATTR special register (or its equivalent) 144 * to enable and disable caches in various modes. 145 *----------------------------------------------------------------------*/ 146 147 /*---------------------------------------------------------------------- 148 BACKWARD COMPATIBILITY ... 149 ----------------------------------------------------------------------*/ 150 151 /* 152 * NOTE: the following two macros are DEPRECATED. Use the latter 153 * board-specific macros instead, which are specially tuned for the 154 * particular target environments' memory maps. 155 */ 156 #define XSHAL_CACHEATTR_BYPASS XSHAL_XT2000_CACHEATTR_BYPASS /* disable caches in bypass mode */ 157 #define XSHAL_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_DEFAULT /* default setting to enable caches (no writeback!) */ 158 159 /*---------------------------------------------------------------------- 160 GENERIC 161 ----------------------------------------------------------------------*/ 162 163 /* For the following, a 512MB region is used if it contains a system (PIF) RAM, 164 * system (PIF) ROM, local memory, or XLMI. */ 165 166 /* These set any unused 512MB region to cache-BYPASS attribute: */ 167 #define XSHAL_ALLVALID_CACHEATTR_WRITEBACK 0x22222242 /* enable caches in write-back mode */ 168 #define XSHAL_ALLVALID_CACHEATTR_WRITEALLOC 0x22222212 /* enable caches in write-allocate mode */ 169 #define XSHAL_ALLVALID_CACHEATTR_WRITETHRU 0x22222212 /* enable caches in write-through mode */ 170 #define XSHAL_ALLVALID_CACHEATTR_BYPASS 0x22222222 /* disable caches in bypass mode */ 171 #define XSHAL_ALLVALID_CACHEATTR_DEFAULT XSHAL_ALLVALID_CACHEATTR_WRITEBACK /* default setting to enable caches */ 172 173 /* These set any unused 512MB region to ILLEGAL attribute: */ 174 #define XSHAL_STRICT_CACHEATTR_WRITEBACK 0xFFFFFF4F /* enable caches in write-back mode */ 175 #define XSHAL_STRICT_CACHEATTR_WRITEALLOC 0xFFFFFF1F /* enable caches in write-allocate mode */ 176 #define XSHAL_STRICT_CACHEATTR_WRITETHRU 0xFFFFFF1F /* enable caches in write-through mode */ 177 #define XSHAL_STRICT_CACHEATTR_BYPASS 0xFFFFFF2F /* disable caches in bypass mode */ 178 #define XSHAL_STRICT_CACHEATTR_DEFAULT XSHAL_STRICT_CACHEATTR_WRITEBACK /* default setting to enable caches */ 179 180 /* These set the first 512MB, if unused, to ILLEGAL attribute to help catch 181 * NULL-pointer dereference bugs; all other unused 512MB regions are set 182 * to cache-BYPASS attribute: */ 183 #define XSHAL_TRAPNULL_CACHEATTR_WRITEBACK 0x2222224F /* enable caches in write-back mode */ 184 #define XSHAL_TRAPNULL_CACHEATTR_WRITEALLOC 0x2222221F /* enable caches in write-allocate mode */ 185 #define XSHAL_TRAPNULL_CACHEATTR_WRITETHRU 0x2222221F /* enable caches in write-through mode */ 186 #define XSHAL_TRAPNULL_CACHEATTR_BYPASS 0x2222222F /* disable caches in bypass mode */ 187 #define XSHAL_TRAPNULL_CACHEATTR_DEFAULT XSHAL_TRAPNULL_CACHEATTR_WRITEBACK /* default setting to enable caches */ 188 189 /*---------------------------------------------------------------------- 190 ISS (Instruction Set Simulator) SPECIFIC ... 191 ----------------------------------------------------------------------*/ 192 193 /* For now, ISS defaults to the TRAPNULL settings: */ 194 #define XSHAL_ISS_CACHEATTR_WRITEBACK XSHAL_TRAPNULL_CACHEATTR_WRITEBACK 195 #define XSHAL_ISS_CACHEATTR_WRITEALLOC XSHAL_TRAPNULL_CACHEATTR_WRITEALLOC 196 #define XSHAL_ISS_CACHEATTR_WRITETHRU XSHAL_TRAPNULL_CACHEATTR_WRITETHRU 197 #define XSHAL_ISS_CACHEATTR_BYPASS XSHAL_TRAPNULL_CACHEATTR_BYPASS 198 #define XSHAL_ISS_CACHEATTR_DEFAULT XSHAL_TRAPNULL_CACHEATTR_WRITEBACK 199 200 #define XSHAL_ISS_PIPE_REGIONS 0 201 #define XSHAL_ISS_SDRAM_REGIONS 0 202 203 204 /*---------------------------------------------------------------------- 205 XT2000 BOARD SPECIFIC ... 206 ----------------------------------------------------------------------*/ 207 208 /* For the following, a 512MB region is used if it contains any system RAM, 209 * system ROM, local memory, XLMI, or other XT2000 board device or memory. 210 * Regions containing devices are forced to cache-BYPASS mode regardless 211 * of whether the macro is _WRITEBACK vs. _BYPASS etc. */ 212 213 /* These set any 512MB region unused on the XT2000 to ILLEGAL attribute: */ 214 #define XSHAL_XT2000_CACHEATTR_WRITEBACK 0xFFF2424F /* enable caches in write-back mode */ 215 #define XSHAL_XT2000_CACHEATTR_WRITEALLOC 0xFFF2121F /* enable caches in write-allocate mode */ 216 #define XSHAL_XT2000_CACHEATTR_WRITETHRU 0xFFF2121F /* enable caches in write-through mode */ 217 #define XSHAL_XT2000_CACHEATTR_BYPASS 0xFFF2222F /* disable caches in bypass mode */ 218 #define XSHAL_XT2000_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_WRITEBACK /* default setting to enable caches */ 219 220 #define XSHAL_XT2000_PIPE_REGIONS 0x00000000 /* BusInt pipeline regions */ 221 #define XSHAL_XT2000_SDRAM_REGIONS 0x00000108 /* BusInt SDRAM regions */ 222 223 224 /*---------------------------------------------------------------------- 225 VECTOR INFO AND SIZES 226 ----------------------------------------------------------------------*/ 227 228 #define XSHAL_VECTORS_PACKED 0 229 #define XSHAL_STATIC_VECTOR_SELECT 0 230 #define XSHAL_RESET_VECTOR_VADDR 0x3B6F8000 231 #define XSHAL_RESET_VECTOR_PADDR 0x3B6F8000 232 233 /* 234 * Sizes allocated to vectors by the system (memory map) configuration. 235 * These sizes are constrained by core configuration (eg. one vector's 236 * code cannot overflow into another vector) but are dependent on the 237 * system or board (or LSP) memory map configuration. 238 * 239 * Whether or not each vector happens to be in a system ROM is also 240 * a system configuration matter, sometimes useful, included here also: 241 */ 242 #define XSHAL_RESET_VECTOR_SIZE 0x000002E0 243 #define XSHAL_RESET_VECTOR_ISROM 0 244 #define XSHAL_USER_VECTOR_SIZE 0x0000001C 245 #define XSHAL_USER_VECTOR_ISROM 0 246 #define XSHAL_PROGRAMEXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */ 247 #define XSHAL_USEREXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */ 248 #define XSHAL_KERNEL_VECTOR_SIZE 0x0000001C 249 #define XSHAL_KERNEL_VECTOR_ISROM 0 250 #define XSHAL_STACKEDEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */ 251 #define XSHAL_KERNELEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */ 252 #define XSHAL_DOUBLEEXC_VECTOR_SIZE 0x0000001C 253 #define XSHAL_DOUBLEEXC_VECTOR_ISROM 0 254 #define XSHAL_WINDOW_VECTORS_SIZE 0x00000178 255 #define XSHAL_WINDOW_VECTORS_ISROM 0 256 #define XSHAL_INTLEVEL2_VECTOR_SIZE 0x0000001C 257 #define XSHAL_INTLEVEL2_VECTOR_ISROM 0 258 #define XSHAL_INTLEVEL3_VECTOR_SIZE 0x0000001C 259 #define XSHAL_INTLEVEL3_VECTOR_ISROM 0 260 #define XSHAL_INTLEVEL4_VECTOR_SIZE 0x0000001C 261 #define XSHAL_INTLEVEL4_VECTOR_ISROM 0 262 #define XSHAL_DEBUG_VECTOR_SIZE XSHAL_INTLEVEL4_VECTOR_SIZE 263 #define XSHAL_DEBUG_VECTOR_ISROM XSHAL_INTLEVEL4_VECTOR_ISROM 264 #define XSHAL_NMI_VECTOR_SIZE 0x0000001C 265 #define XSHAL_NMI_VECTOR_ISROM 0 266 #define XSHAL_INTLEVEL5_VECTOR_SIZE XSHAL_NMI_VECTOR_SIZE 267 268 269 #endif /*XTENSA_CONFIG_SYSTEM_H*/ 270 271
