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1 /*****************************************************************************
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2 * -*- coding: UTF-8 -*-
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3 *
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4 * \file Common/CPU1-F429.ld
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5 * \brief Linker Script for CPU1 alias Discovery
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6 * \author Ac6 workbench, Heinrichs Weikamp, and JD Gascuel
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7 * \date 2018
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8 *
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9 * \details
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10 * Linker script for STM32F429IIT6 Device from STM32F4 series
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11 * - 192Kbytes RAM
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12 * - 2048Kbytes ROM
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13 *
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14 * Set heap size, stack size and stack location according
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15 * to application requirements.
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16 *
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17 * Set memory bank area and size if external memory is used.
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18 *
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19 * $Id$
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20 *****************************************************************************
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21 * \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
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22 *
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23 * This program is free software: you can redistribute it and/or modify
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24 * it under the terms of the GNU General Public License as published by
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25 * the Free Software Foundation, either version 3 of the License, or
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26 * (at your option) any later version.
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27 *
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28 * This program is distributed in the hope that it will be useful,
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29 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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30 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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31 * GNU General Public License for more details.
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32 *
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33 * You should have received a copy of the GNU General Public License
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34 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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35 *****************************************************************************
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36 * HISTORY
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37 * 2017-12-18 jDG: Mix between std AC6 file and chw stm32f429zi_flash.ld settings.
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38 */
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39
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40 /* Entry Point */
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41 ENTRY(Reset_Handler)
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42
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43 OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
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44 OUTPUT_ARCH(arm)
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45 SEARCH_DIR(.)
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46
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47 /****************************************************************************/
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48 /***************************** Memory Definition ****************************/
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49 MEMORY
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50 {
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51 ROM (rx) : ORIGIN = 0x08000000, LENGTH = 0x100000 /* 1024K */
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52 UPPER(rx) : ORIGIN = 0x08100000, LENGTH = 0x100000 /* 1024K */
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53 RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 192K
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54 CCRAM (rwx) : ORIGIN = 0x10000000, LENGTH = 64K
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55 }
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56
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57 /* Make sure ROM and UPPER are contiguous, and map 2MB */
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58 ASSERT( ORIGIN(UPPER) - ORIGIN(ROM) == LENGTH(ROM), "ROM lower and upper region shall be continuous" )
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59 ASSERT( LENGTH(ROM) + LENGTH(UPPER) == 2048K, "ROM lower + upper regions = 2MB" )
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60
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61 /* Highest address of the user mode stack */
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62 _estack = ORIGIN(RAM) + LENGTH(RAM);
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63
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64 /* Used by the startup to initialize data */
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65 _sidata = LOADADDR(.data);
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66
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67 _Min_Heap_Size = 0; /* no required heap (malloc'ed space) */
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68 _Min_Stack_Size = 0x8000; /* required 32K of stack */
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69
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70 /* Linker script to place sections and symbol values. Should be used together
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71 * with other linker script that defines memory regions FLASH and RAM.
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72 * It references following symbols, which must be defined in code:
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73 * Reset_Handler : Entry of reset handler
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74 *
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75 * It defines following symbols, which code can use without definition:
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76 * __exidx_start
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77 * __exidx_end
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78 * __preinit_array_start
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79 * __preinit_array_end
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80 * __init_array_start
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81 * __init_array_end
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82 * __fini_array_start
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83 * __fini_array_end
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84 * _sbss
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85 * __bss_start__
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86 * _ebss
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87 * __bss_end__
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88 * _edata
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89 * end
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90 * _end
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91 * _estack
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92 */
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93
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94 /****************************************************************************/
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95 /*************************** Code and Data Sections *************************/
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96 SECTIONS
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97 {
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98 /******************* NVIC reset and interupt vectors **********************/
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99 .isr_vector 0x08000000 :
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100 {
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101 KEEP( *(.isr_vector) )
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102 } >ROM
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103
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104 /************* The program code and other data into ROM memory ************/
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105 .text :
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106 {
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107 . = ALIGN(4);
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108 *(.text) /* .text sections (code) */
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109 *(.text*) /* .text* sections (code) */
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110 *(.glue_7) /* glue arm to thumb code */
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111 *(.glue_7t) /* glue thumb to arm code */
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112 *(.eh_frame)
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113
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114 . = ALIGN(4);
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115 _etext = .; /* define a global symbols at end of code */
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116 } >ROM
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117
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118 .preinit_array :
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119 {
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120 . = ALIGN(4);
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121 PROVIDE_HIDDEN( __preinit_array_start = . );
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122 KEEP( *(.preinit_array*) )
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123 PROVIDE_HIDDEN( __preinit_array_end = . );
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124 . = ALIGN(4);
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125 } >ROM
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126
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127 .init_array :
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128 {
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129 . = ALIGN(4);
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130 PROVIDE_HIDDEN( __init_array_start = . );
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131 KEEP( *(SORT(.init_array.*)) )
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132 KEEP( *(.init_array*) )
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133 PROVIDE_HIDDEN( __init_array_end = . );
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134 . = ALIGN(4);
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135 } >ROM
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136
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137 .fini_array :
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138 {
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139 . = ALIGN(4);
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140 PROVIDE_HIDDEN( __fini_array_start = . );
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141 KEEP( *(SORT(.fini_array.*)) )
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142 KEEP( *(.fini_array*) )
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143 PROVIDE_HIDDEN( __fini_array_end = . );
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144 . = ALIGN(4);
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145 } >ROM
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146
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147 /********************** Constant data into ROM memory *********************/
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148 .rodata :
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149 {
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150 . = ALIGN(4);
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151 *(.rodata) /* .rodata sections (constants, strings, etc.) */
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152 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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153 . = ALIGN(4);
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154 } >ROM
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155
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156 .ARM.extab : {
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157 . = ALIGN(4);
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158 *(.ARM.extab* .gnu.linkonce.armextab.*)
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159 . = ALIGN(4);
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160 } >ROM
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161
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162 .ARM : {
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163 . = ALIGN(4);
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164 __exidx_start = .;
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165 *(.ARM.exidx*)
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166 __exidx_end = .;
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167 . = ALIGN(4);
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168 } >ROM
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169
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170 /************* Data and Structures at absolute address in ROM *************/
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171
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172 /* FIXME: this sets the SFirmwareData structure, not the code ... */
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173 .bootloader_firmware_data 0x0800A000 : {
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174 PROVIDE( bootloader_FirmwareData = . );
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175 KEEP( *(.bootloader_firmware_data) )
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176 } > ROM
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177
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178 /* FIMXE: original address was 0x08050000. But we have a collision */
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179 .firmware_FirmwareData 0x08060000 : {
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180 PROVIDE( firmware_FirmwareData = . );
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181 KEEP( *(.firmware_firmware_data) )
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182 } >ROM
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183
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184 .font_firmware_data 0x08132000 : {
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185 PROVIDE( font_FirmwareData = . );
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186 KEEP( *(.font_firmware_data) )
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187 } >UPPER
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188
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189 /* Put fonts and images in UPPER region */
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190 .upper_fonts : {
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191 __upper_font_data = .;
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192 KEEP( *(.upper_fonts) )
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193 __upper_font_data_end = .;
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194 } >UPPER
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195
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196 .upper_font_directory 0x081E0000 : { /* Last 128 KBytes of UPPER ROM */
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197
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198 /* Define Known Address for Each Font */
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199 __font_directory = .;
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200 PROVIDE( Awe48 = __font_directory + 0 * 0xc );
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201 PROVIDE( FontT24 = __font_directory + 1 * 0xc );
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202 PROVIDE( FontT42 = __font_directory + 2 * 0xc );
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203 PROVIDE( FontT48 = __font_directory + 3 * 0xc );
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204 PROVIDE( FontT54 = __font_directory + 4 * 0xc );
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205 PROVIDE( FontT84 = __font_directory + 5 * 0xc );
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206 PROVIDE( FontT105 = __font_directory + 6 * 0xc );
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207 PROVIDE( FontT144 = __font_directory + 7 * 0xc );
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208 PROVIDE( Batt24 = __font_directory + 8 * 0xc );
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209 __font_directory_end = __font_directory + 9 * 0xc;
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210
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211 KEEP( *(.upper_font_directory) )
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212 LONG( -1 ); /* Magic End Marker */
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213
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214 /* and for Each Image */
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215 __image_directory = .;
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216 PROVIDE( ImgHWcolor = __image_directory + 0 * 8 );
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217 PROVIDE( ImgOSTC = __image_directory + 1 * 8 );
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218 __image_directory_end = __image_directory + 2 * 8;
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219
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220 /* FIXME: shall KEEP images here */
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221 LONG( -1 ); /* Magic End Marker */
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222
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223 /* and for CLUT */
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224 PROVIDE( indexHWcolor = . );
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225 . += 0x400;
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226 LONG( -1 ); /* Magic End Marker */
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227 } >UPPER
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228
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229 /************ Initialized Data Sections into RAM & ROM Memory **************/
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230 .data :
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231 {
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232 . = ALIGN(4);
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233
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234 _sdata = .; /* create a global symbol at data start */
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235 *(.data) /* .data sections */
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236 *(.data*) /* .data* sections */
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237 *(vtable)
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238
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239 . = ALIGN(4);
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240 _edata = .; /* define a global symbol at data end */
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241 } >RAM AT>ROM
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242
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243 /*************** Uninitialized Data Section into RAM Memory ****************/
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244 .bss :
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245 {
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246 . = ALIGN(4);
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247
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248 /* This is used by the startup in order to initialize the .bss secion */
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249 _sbss = .; /* define a global symbol at bss start */
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250 __bss_start__ = _sbss;
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251 *(.bss)
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252 *(.bss*)
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253 *(COMMON)
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254
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255 . = ALIGN(4);
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256 _ebss = .; /* define a global symbol at bss end */
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257 __bss_end__ = _ebss;
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258 } >RAM
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259
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260 /********************** User_heap_stack section ****************************/
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261 /* just to check that there is enough RAM left */
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262 ._user_heap_stack :
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263 {
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264 . = ALIGN(8);
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265 PROVIDE ( end = . );
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266 PROVIDE ( _end = . );
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267 . = . + _Min_Heap_Size;
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268 . = . + _Min_Stack_Size;
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269 . = ALIGN(8);
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270 } >RAM
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271
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272 /* Remove information from the compiler libraries */
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273 /DISCARD/ :
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274 {
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275 libc.a ( * )
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276 libm.a ( * )
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277 libgcc.a ( * )
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278 }
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279
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280 .ARM.attributes 0 : { *(.ARM.attributes) }
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281 }
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