1/******************************************************************************* 2 * (c) Copyright 2015 Microsemi SoC Products Group. All rights reserved. 3 * 4 * file name : debug-in-microsemi-smartfusion2-envm.ld 5 * SmartFusion2 Cortex-M3 linker script for creating a SoftConsole downloadable 6 * debug image executing in SmartFusion2 internal eNVM. 7 * 8 * Some current (April 2015) dev kit memory map possibilities are 9 * --Type-------Device-----------address start---address end----size---Dbus--RAM IC-------SF2--Comment--------------- 10 * --eNVM-------M2S010-----------0x60000000------0x6007FFFF-----256KB---------------------010------------------------ 11 * --eNVM-------M2S090-----------0x60000000------0x6007FFFF-----512KB---------------------090------------------------ 12 * --eSRAM------M2Sxxx-----------0x20000000------0x2000FFFF-----64KB----------------------xxx--All have same amount-- 13 * --eSRAM------M2Sxxx-----------0x20000000------0x20013FFF-----80KB----------------------xxx--If ECC/SECDED not used 14 * --Fabric-----M2S010-----------0x30000000------0x6007FFFF-----400Kb---------------------010--note-K bits----------- 15 * --Fabric-----M2S090-----------0x30000000------0x6007FFFF-----2074Kb--------------------090--note-K bits----------- 16 * --LPDDR------STARTER-KIT------0xA0000000------0xA3FFFFFF-----64MB---16--MT46H32M16-----050------------------------ 17 * --LPDDR------484-STARTER-KIT--0xA0000000------0xA3FFFFFF-----64MB---16--MT46H32M16-----010------------------------ 18 * --LPDDR------SEC-EVAL-KIT-----0xA0000000------0xA3FFFFFF-----64MB---16--MT46H32M16LF---090--Security eval kit----- 19 * --DDR3-------ADevKit----------0xA0000000------0xBFFFFFFF-----1GB----32--MT41K256M8DA---150------------------------ 20 * --Some older physical memory map possibilities are 21 * --Type-------location---------address start---address end----size---Dbus---RAM IC------SF2--Comment-------------- 22 * --LPDDR------EVAL KIT---------0xA0000000------0xA3FFFFFF-----64MB-=-16--MT46H32M16LF---025--Eval Kit-------------- 23 * --DDR3-------DevKit-----------0xA0000000------0xAFFFFFFF-----512MB--16--MT41K256M8DA---050------------------------ 24 * 25 * Example linker scripts use lowest practicl values so will work accross dev kits 26 * eNVM=256KB eRAM=64KB External memory = 64MB 27 * 28 * On reset, the eNVM region is mapped to 0x00000000 29 * This is changed below by setting the __smartfusion2_memory_remap variable as required. 30 * Options are detailed below. 31 * 32 * SVN $Revision: 7419 $ 33 * SVN $Date: 2015-05-15 21:20:21 +0530 (Fri, 15 May 2015) $ 34 */ 35 36OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") 37GROUP(-lc -lgcc -lm) 38OUTPUT_ARCH(arm) 39ENTRY(Reset_Handler) 40SEARCH_DIR(.) 41__DYNAMIC = 0; 42 43/******************************************************************************* 44 * Start of board customization. 45 *******************************************************************************/ 46MEMORY 47{ 48 /* 49 * In general, example LD scripts use lowest common memory footprint 50 * so will work with all devices. 51 */ 52 /* 53 * WARNING: The words "SOFTCONSOLE", "FLASH", and "USE", the colon ":", and 54 * the name of the type of flash memory are all in a specific order. 55 * Please do not modify that comment line, in order to ensure 56 * debugging of your application will use the flash memory correctly. 57 */ 58 59 /* SOFTCONSOLE FLASH USE: microsemi-smartfusion2-envm */ 60 rom (rx) : ORIGIN = 0x60000000, LENGTH = 256k 61 62 /* SmartFusion2 internal eNVM mirrored to 0x00000000 */ 63 romMirror (rx) : ORIGIN = 0x00000000, LENGTH = 256k 64 65 /* SmartFusion2 internal eSRAM */ 66 ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64k 67} 68 69RAM_START_ADDRESS = 0x20000000; /* Must be the same value MEMORY region ram ORIGIN above. */ 70RAM_SIZE = 64k; /* Must be the same value MEMORY region ram LENGTH above. */ 71MAIN_STACK_SIZE = 4k; /* Cortex main stack size. */ 72MIN_SIZE_HEAP = 4k; /* needs to be calculated for your application */ 73 74/******************************************************************************* 75 * End of board customization. 76 *******************************************************************************/ 77 78PROVIDE (__main_stack_start = RAM_START_ADDRESS + RAM_SIZE); 79PROVIDE (_estack = __main_stack_start); 80PROVIDE (__mirrored_nvm = 1); /* Indicate to startup code that NVM is mirrored to VMA address and no text copy is required. */ 81 82/* 83 * Remap instruction for startup code and debugger. 84 * set __smartfusion2_memory_remap to one of the following: 85 * 0: remap eNVM to address 0x00000000 Production mode or debugging from eNVM 86 * 1: remap eSRAM to address 0x00000000 Debugging from eSRAM 87 * 2: remap external DDR memory to address 0x00000000 Debugging from DDR memory 88 */ 89PROVIDE (__smartfusion2_memory_remap = 0); 90 91SECTIONS 92{ 93 .vector_table : ALIGN(0x10) 94 { 95 __vector_table_load = LOADADDR(.vector_table); 96 __vector_table_start = .; 97 __vector_table_vma_base_address = .; /* required by debugger for start address */ 98 KEEP(*(.isr_vector)) 99 . = ALIGN(0x10); 100 _evector_table = .; 101 } >romMirror AT>rom 102 103 /* all data and code run/used before reloaction must be located here */ 104 /* When all code in NVRAM, no requirement for this section- but adds clarity when looking at .lst file */ 105 .boot_code : ALIGN(0x10) 106 { 107 *(.boot_code) /* reset handler */ 108 *system_m2sxxx.o(.text*) /* SystemInit() - called before relocation to RAM so keep in ROM */ 109 *sys_config.o(.rodata*) 110 . = ALIGN(0x10); 111 } >romMirror AT>rom 112 113 .text : ALIGN(0x10) 114 { 115 CREATE_OBJECT_SYMBOLS 116 __text_load = LOADADDR(.text); /* required when copying to RAM */ 117 __text_start = .; /* required when copying to RAM */ 118 *(.text .text.* .gnu.linkonce.t.*) 119 *(.plt) 120 *(.gnu.warning) 121 *(.glue_7t) *(.glue_7) *(.vfp11_veneer) 122 123 . = ALIGN(4); 124 /* These are for running static constructors and destructors under ELF. */ 125 KEEP (*crtbegin.o(.ctors)) 126 KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) 127 KEEP (*(SORT(.ctors.*))) 128 KEEP (*crtend.o(.ctors)) 129 KEEP (*crtbegin.o(.dtors)) 130 KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) 131 KEEP (*(SORT(.dtors.*))) 132 KEEP (*crtend.o(.dtors)) 133 134 *(.rodata .rodata.* .gnu.linkonce.r.*) 135 136 *(.ARM.extab* .gnu.linkonce.armextab.*) 137 *(.gcc_except_table) 138 *(.eh_frame_hdr) 139 *(.eh_frame) 140 141 KEEP (*(.vector_table)) 142 KEEP (*(.init)) 143 KEEP (*(.fini)) 144 145 PROVIDE_HIDDEN (__preinit_array_start = .); 146 KEEP (*(.preinit_array)) 147 PROVIDE_HIDDEN (__preinit_array_end = .); 148 PROVIDE_HIDDEN (__init_array_start = .); 149 KEEP (*(SORT(.init_array.*))) 150 KEEP (*(.init_array)) 151 PROVIDE_HIDDEN (__init_array_end = .); 152 PROVIDE_HIDDEN (__fini_array_start = .); 153 KEEP (*(.fini_array)) 154 KEEP (*(SORT(.fini_array.*))) 155 PROVIDE_HIDDEN (__fini_array_end = .); 156 . = ALIGN(0x10); 157 } >romMirror AT>rom 158 159 /* .ARM.exidx is sorted, so has to go in its own output section. */ 160 __exidx_start = .; 161 .ARM.exidx : 162 { 163 *(.ARM.exidx* .gnu.linkonce.armexidx.*) 164 } >ram AT>rom 165 __exidx_end = .; 166 _etext = .; /* required when copying to RAM */ 167 168 .data : ALIGN(0x10) 169 { 170 __data_load = LOADADDR(.data); /* used when copying to RAM */ 171 _sidata = LOADADDR (.data); 172 __data_start = .; /* used when copying to RAM */ 173 _sdata = .; 174 KEEP(*(.jcr)) 175 *(.got.plt) *(.got) 176 *(.shdata) 177 *(.data .data.* .gnu.linkonce.d.*) 178 . = ALIGN (0x10); 179 _edata = .; /* used when copying to RAM */ 180 } >ram AT>rom 181 182 .bss : ALIGN(0x10) 183 { 184 __bss_start__ = . ; 185 _sbss = .; 186 *(.shbss) 187 *(.bss .bss.* .gnu.linkonce.b.*) 188 *(COMMON) 189 . = ALIGN(0x10); 190 __bss_end__ = .; 191 _end = .; 192 __end = _end; 193 _ebss = .; 194 PROVIDE(end = .); 195 } >ram AT>rom 196 197 .heap : ALIGN(0x10) 198 { 199 __heap_start__ = .; 200 . += MIN_SIZE_HEAP; /* will generate error if this minimum size not available */ 201 . += ((ABSOLUTE(RAM_START_ADDRESS) + RAM_SIZE - MAIN_STACK_SIZE) - .); /* assumes stack starts after heap */ 202 _eheap = .; 203 } >ram 204 205 .stack : ALIGN(0x10) 206 { 207 __stack_start__ = .; 208 . += MAIN_STACK_SIZE; 209 _estack = .; 210 } >ram 211 212 .stab 0 (NOLOAD) : 213 { 214 *(.stab) 215 } 216 217 .stabstr 0 (NOLOAD) : 218 { 219 *(.stabstr) 220 } 221 /* DWARF debug sections. 222 Symbols in the DWARF debugging sections are relative to the beginning 223 of the section so we begin them at 0. */ 224 /* DWARF 1 */ 225 .debug 0 : { *(.debug) } 226 .line 0 : { *(.line) } 227 /* GNU DWARF 1 extensions */ 228 .debug_srcinfo 0 : { *(.debug_srcinfo) } 229 .debug_sfnames 0 : { *(.debug_sfnames) } 230 /* DWARF 1.1 and DWARF 2 */ 231 .debug_aranges 0 : { *(.debug_aranges) } 232 .debug_pubnames 0 : { *(.debug_pubnames) } 233 /* DWARF 2 */ 234 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 235 .debug_abbrev 0 : { *(.debug_abbrev) } 236 .debug_line 0 : { *(.debug_line) } 237 .debug_frame 0 : { *(.debug_frame) } 238 .debug_str 0 : { *(.debug_str) } 239 .debug_loc 0 : { *(.debug_loc) } 240 .debug_macinfo 0 : { *(.debug_macinfo) } 241 /* SGI/MIPS DWARF 2 extensions */ 242 .debug_weaknames 0 : { *(.debug_weaknames) } 243 .debug_funcnames 0 : { *(.debug_funcnames) } 244 .debug_typenames 0 : { *(.debug_typenames) } 245 .debug_varnames 0 : { *(.debug_varnames) } 246 .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) } 247 .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) } 248 /DISCARD/ : { *(.note.GNU-stack) } 249} 250