1 | /****************************************************/ |
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2 | /* */ |
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3 | /* Mango 802.11 Reference Design */ |
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4 | /* Linker script for CPU High on WARP v3 */ |
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5 | /* Copyright (c) 2017 Mango Communications, Inc. */ |
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6 | /* All rights reserved. */ |
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7 | /****************************************************/ |
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8 | |
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9 | _STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 0x1000; |
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10 | _HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 0x2000; |
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11 | |
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12 | /* The I/DLMB for CPU High is implemented as two 128kB */ |
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13 | /* BRAM blocks. These blocks are mapped into continguous */ |
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14 | /* addresses for CPU High, allowing the linker to map */ |
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15 | /* sections into these memories as if it were a single */ |
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16 | /* memory block. The mb_high_ilmb MEMORY below represents */ |
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17 | /* the full 256kB logical I/DLMB memory area. */ |
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18 | |
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19 | MEMORY |
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20 | { |
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21 | mb_high_ilmb : ORIGIN = 0x00000050, LENGTH = 0x0003FFB0 |
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22 | pkt_buff_rx_bram : ORIGIN = 0x90000000, LENGTH = 0x00010000 |
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23 | pkt_buff_tx_bram : ORIGIN = 0x91000000, LENGTH = 0x00010000 |
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24 | mb_high_aux_bram : ORIGIN = 0xA0000000, LENGTH = 0x00010000 |
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25 | ddr3_sodimm : ORIGIN = 0xC0000000, LENGTH = 0x40000000 |
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26 | } |
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27 | |
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28 | /* Specify the default entry point to the program */ |
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29 | |
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30 | ENTRY(_start) |
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31 | |
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32 | /* Define the sections, and where they are mapped in memory */ |
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33 | |
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34 | SECTIONS |
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35 | { |
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36 | .vectors.reset 0x00000000 : { |
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37 | KEEP (*(.vectors.reset)) |
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38 | } |
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39 | |
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40 | .vectors.sw_exception 0x00000008 : { |
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41 | KEEP (*(.vectors.sw_exception)) |
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42 | } |
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43 | |
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44 | .vectors.interrupt 0x00000010 : { |
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45 | KEEP (*(.vectors.interrupt)) |
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46 | } |
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47 | |
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48 | .vectors.hw_exception 0x00000020 : { |
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49 | KEEP (*(.vectors.hw_exception)) |
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50 | } |
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51 | |
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52 | .text : { |
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53 | *(.text) |
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54 | *(.text.*) |
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55 | *(.gnu.linkonce.t.*) |
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56 | } > mb_high_ilmb |
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57 | |
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58 | /****************************************************************** |
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59 | * CPU High Linker Data in DDR |
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60 | * |
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61 | * Since on device BRAM is being used for many different things, it |
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62 | * becomes necessary to link data sections into DDR. The section |
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63 | * cpu_high_ddr_linker_data is used for this data. |
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64 | * |
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65 | * However, since this section is located in DDR, which cannot be |
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66 | * loaded by the SDK, we inlucde the (NOLOAD) directive for this |
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67 | * section. This means that the initial value of the section will be |
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68 | * random (ie whatever was last in DDR). |
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69 | * |
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70 | * If this section needs to be initialized, then the function |
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71 | * wlan_mac_high_cpu_linker_data_init() must be updated in |
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72 | * wlan_mac_high.c. |
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73 | * |
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74 | ******************************************************************/ |
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75 | |
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76 | .init : { |
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77 | KEEP (*(.init)) |
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78 | } > mb_high_ilmb |
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79 | |
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80 | .fini : { |
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81 | KEEP (*(.fini)) |
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82 | } > mb_high_ilmb |
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83 | |
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84 | .ctors : { |
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85 | __CTOR_LIST__ = .; |
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86 | ___CTORS_LIST___ = .; |
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87 | KEEP (*crtbegin.o(.ctors)) |
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88 | KEEP (*(EXCLUDE_FILE(*crtend.o) .ctors)) |
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89 | KEEP (*(SORT(.ctors.*))) |
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90 | KEEP (*(.ctors)) |
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91 | __CTOR_END__ = .; |
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92 | ___CTORS_END___ = .; |
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93 | } > mb_high_ilmb |
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94 | |
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95 | .dtors : { |
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96 | __DTOR_LIST__ = .; |
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97 | ___DTORS_LIST___ = .; |
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98 | KEEP (*crtbegin.o(.dtors)) |
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99 | KEEP (*(EXCLUDE_FILE(*crtend.o) .dtors)) |
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100 | KEEP (*(SORT(.dtors.*))) |
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101 | KEEP (*(.dtors)) |
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102 | PROVIDE(__DTOR_END__ = .); |
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103 | PROVIDE(___DTORS_END___ = .); |
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104 | } > mb_high_ilmb |
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105 | |
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106 | .rodata : { |
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107 | __rodata_start = .; |
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108 | *(.rodata) |
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109 | *(.rodata.*) |
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110 | *(.gnu.linkonce.r.*) |
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111 | __rodata_end = .; |
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112 | } > mb_high_ilmb |
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113 | |
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114 | .sdata2 : { |
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115 | . = ALIGN(8); |
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116 | __sdata2_start = .; |
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117 | *(.sdata2) |
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118 | *(.sdata2.*) |
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119 | *(.gnu.linkonce.s2.*) |
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120 | . = ALIGN(8); |
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121 | __sdata2_end = .; |
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122 | } > mb_high_ilmb |
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123 | |
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124 | .sbss2 : { |
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125 | __sbss2_start = .; |
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126 | *(.sbss2) |
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127 | *(.sbss2.*) |
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128 | *(.gnu.linkonce.sb2.*) |
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129 | __sbss2_end = .; |
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130 | } > mb_high_ilmb |
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131 | |
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132 | .data : { |
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133 | . = ALIGN(4); |
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134 | __data_start = .; |
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135 | *(.data) |
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136 | *(.data.*) |
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137 | *(.gnu.linkonce.d.*) |
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138 | __data_end = .; |
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139 | } > mb_high_ilmb |
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140 | |
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141 | .got : { |
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142 | *(.got) |
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143 | } > mb_high_ilmb |
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144 | |
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145 | .got1 : { |
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146 | *(.got1) |
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147 | } > mb_high_ilmb |
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148 | |
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149 | .got2 : { |
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150 | *(.got2) |
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151 | } > mb_high_ilmb |
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152 | |
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153 | .eh_frame : { |
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154 | *(.eh_frame) |
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155 | } > mb_high_ilmb |
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156 | |
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157 | .jcr : { |
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158 | *(.jcr) |
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159 | } > mb_high_ilmb |
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160 | |
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161 | .gcc_except_table : { |
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162 | *(.gcc_except_table) |
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163 | } > mb_high_ilmb |
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164 | |
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165 | .sdata : { |
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166 | . = ALIGN(8); |
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167 | __sdata_start = .; |
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168 | *(.sdata) |
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169 | *(.sdata.*) |
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170 | *(.gnu.linkonce.s.*) |
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171 | . += 16; /* fix for linker false error message */ |
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172 | __sdata_end = .; |
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173 | } > mb_high_ilmb |
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174 | |
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175 | .sbss (NOLOAD) : { |
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176 | . = ALIGN(4); |
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177 | __sbss_start = .; |
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178 | *(.sbss) |
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179 | *(.sbss.*) |
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180 | *(.gnu.linkonce.sb.*) |
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181 | . = ALIGN(8); |
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182 | __sbss_end = .; |
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183 | } > mb_high_ilmb |
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184 | |
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185 | .tdata : { |
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186 | __tdata_start = .; |
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187 | *(.tdata) |
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188 | *(.tdata.*) |
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189 | *(.gnu.linkonce.td.*) |
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190 | __tdata_end = .; |
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191 | } > mb_high_ilmb |
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192 | |
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193 | .tbss : { |
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194 | __tbss_start = .; |
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195 | *(.tbss) |
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196 | *(.tbss.*) |
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197 | *(.gnu.linkonce.tb.*) |
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198 | __tbss_end = .; |
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199 | } > mb_high_ilmb |
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200 | |
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201 | .bss (NOLOAD) : { |
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202 | . = ALIGN(4); |
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203 | __bss_start = .; |
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204 | *(.bss) |
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205 | *(.bss.*) |
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206 | *(.gnu.linkonce.b.*) |
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207 | *(COMMON) |
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208 | . = ALIGN(4); |
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209 | __bss_end = .; |
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210 | } > mb_high_ilmb |
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211 | |
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212 | _SDA_BASE_ = __sdata_start + ((__sbss_end - __sdata_start) / 2 ); |
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213 | |
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214 | _SDA2_BASE_ = __sdata2_start + ((__sbss2_end - __sdata2_start) / 2 ); |
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215 | |
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216 | /* Generate Stack and Heap definitions */ |
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217 | |
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218 | .heap (NOLOAD) : { |
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219 | . = ALIGN(8); |
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220 | _heap = .; |
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221 | _heap_start = .; |
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222 | . += _HEAP_SIZE; |
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223 | _heap_end = .; |
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224 | } > mb_high_ilmb |
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225 | |
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226 | .stack (NOLOAD) : { |
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227 | _stack_end = .; |
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228 | . += _STACK_SIZE; |
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229 | . = ALIGN(8); |
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230 | _stack = .; |
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231 | __stack = _stack; |
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232 | } > mb_high_ilmb |
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233 | |
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234 | _end = .; |
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235 | } |
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236 | |
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