1/*******************************************************************************
2 * (c) Copyright 2015 Microsemi SoC Products Group.  All rights reserved.
3 *
4 * file name : debug-in-microsemi-smartfusion2-esram.ld
5 * SmartFusion2 Cortex-M3 linker script for creating a SoftConsole downloadable
6 * debug image executing in SmartFusion2 internal eSRAM.
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: 7478 $
33 * SVN $Date: 2015-06-18 21:48:18 +0530 (Thu, 18 Jun 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	/* SmartFusion2 internal eSRAM */
59	ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64k
60}
61
62RAM_START_ADDRESS 	= 0x20000000;     	/* Must be the same value MEMORY region ram ORIGIN above. */
63RAM_SIZE 			= 64k;              /* Must be the same value MEMORY region ram LENGTH above. */
64MAIN_STACK_SIZE 	= 4k;               /* Cortex main stack size. */
65MIN_SIZE_HEAP 		= 4k;				/* needs to be calculated for your application */
66
67/* Please note that unassigned RAM will be allocated to the .heap section. */
68
69/*******************************************************************************
70 * End of board customization.
71 *******************************************************************************/
72
73PROVIDE (__main_stack_start = RAM_START_ADDRESS + RAM_SIZE);
74PROVIDE (_estack = __main_stack_start);
75PROVIDE (__mirrored_nvm = 0);   /* Indicate to startup code that NVM is not mirrored to VMA address .text copy is required. */
76
77 /*
78  * Remap instruction for start-up code and debugger.
79  *  set __smartfusion2_memory_remap to one of the following:
80  *  0: remap eNVM to address 0x00000000                           Production mode or debugging from eNVM
81  *  1: remap eSRAM to address 0x00000000                          See note 1 below.
82  *  2: remap external DDR memory to address 0x00000000            Debugging from or production relocate to DDR memory
83  *  note 1: This option should only be used in production mode if required. When debugging using eSRAM, code is not
84  *  relocated and __smartfusion2_memory_remap should be set to option 0. In revision 7419 and below of
85  *  this file, __smartfusion2_memory_remap was set to option 1. This remap was not required and could lead to an issue
86  *  when displaying some invalid memory locations in the debugger using some Libero designs.
87  *
88  */
89
90PROVIDE (__smartfusion2_memory_remap = 0);
91
92SECTIONS
93{
94  .vector_table : ALIGN(0x10)
95  {
96    __vector_table_load = LOADADDR(.vector_table);
97    __vector_table_start = .;
98    __vector_table_vma_base_address = .;
99    KEEP(*(.isr_vector))
100    . = ALIGN(0x10);
101    _evector_table = .;
102  } >ram
103
104  .boot_code : ALIGN(0x10) /* When all code in RAM, no requirement for this section- but adds clarity when looking at .lst file */
105  {
106  	*(.boot_code)
107  	. = ALIGN(0x10);
108  } >ram
109
110  .text :
111  ALIGN(0x10)
112  {
113    CREATE_OBJECT_SYMBOLS
114    __text_load = LOADADDR(.text);
115    __text_start = .;
116    *(.text .text.* .gnu.linkonce.t.*)
117    *(.plt)
118    *(.gnu.warning)
119    *(.glue_7t) *(.glue_7) *(.vfp11_veneer)
120
121    . = ALIGN(0x4);
122    /* These are for running static constructors and destructors under ELF.  */
123    KEEP (*crtbegin.o(.ctors))
124    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
125    KEEP (*(SORT(.ctors.*)))
126    KEEP (*crtend.o(.ctors))
127    KEEP (*crtbegin.o(.dtors))
128    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
129    KEEP (*(SORT(.dtors.*)))
130    KEEP (*crtend.o(.dtors))
131
132    *(.rodata .rodata.* .gnu.linkonce.r.*)
133
134    *(.ARM.extab* .gnu.linkonce.armextab.*)
135    *(.gcc_except_table)
136    *(.eh_frame_hdr)
137    *(.eh_frame)
138
139    KEEP (*(.vector_table))
140    KEEP (*(.init))
141    KEEP (*(.fini))
142
143    PROVIDE_HIDDEN (__preinit_array_start = .);
144    KEEP (*(.preinit_array))
145    PROVIDE_HIDDEN (__preinit_array_end = .);
146    PROVIDE_HIDDEN (__init_array_start = .);
147    KEEP (*(SORT(.init_array.*)))
148    KEEP (*(.init_array))
149    PROVIDE_HIDDEN (__init_array_end = .);
150    PROVIDE_HIDDEN (__fini_array_start = .);
151    KEEP (*(.fini_array))
152    KEEP (*(SORT(.fini_array.*)))
153    PROVIDE_HIDDEN (__fini_array_end = .);
154    . = ALIGN(0x10);
155  } >ram
156  /* .ARM.exidx is sorted, so has to go in its own output section.  */
157   __exidx_start = .;
158  .ARM.exidx :
159  {
160    *(.ARM.exidx* .gnu.linkonce.armexidx.*)
161  } >ram
162  __exidx_end = .;
163  _etext = .;
164  PROVIDE(__text_end = .);
165
166  .data :
167  ALIGN(0x10)
168  {
169    __data_load = LOADADDR (.data);
170    _sidata = LOADADDR (.data);
171    __data_start = .;
172    _sdata = .;
173    KEEP(*(.jcr))
174    *(.got.plt) *(.got)
175    *(.shdata)
176    *(.data .data.* .gnu.linkonce.d.*)
177    . = ALIGN(0x10);
178    _edata = .;
179  } >ram
180
181  .bss : ALIGN(0x10)
182  {
183    __bss_start__ = . ;
184    _sbss = .;
185    *(.shbss)
186    *(.bss .bss.* .gnu.linkonce.b.*)
187    *(COMMON)
188    . = ALIGN(0x10);
189    __bss_end__ = .;
190    _end = .;
191    __end = _end;
192    _ebss = .;
193    PROVIDE(end = .);
194  } >ram
195
196  .heap : ALIGN(0x10)
197  {
198    __heap_start__ = .;
199    . += MIN_SIZE_HEAP;			/* will generate error if this minimum size not available */
200    . += ((ABSOLUTE(RAM_START_ADDRESS) + RAM_SIZE - MAIN_STACK_SIZE) - .); /* assumes stack starts after heap */
201    _eheap = .;
202  } >ram
203
204  .stack : ALIGN(0x10)
205  {
206    __stack_start__ = .;
207    . += MAIN_STACK_SIZE;
208    _estack = .;
209  } >ram
210
211  .stab 0 (NOLOAD) :
212  {
213    *(.stab)
214  }
215
216  .stabstr 0 (NOLOAD) :
217  {
218    *(.stabstr)
219  }
220  /* DWARF debug sections.
221     Symbols in the DWARF debugging sections are relative to the beginning
222     of the section so we begin them at 0.  */
223  /* DWARF 1 */
224  .debug          0 : { *(.debug) }
225  .line           0 : { *(.line) }
226  /* GNU DWARF 1 extensions */
227  .debug_srcinfo  0 : { *(.debug_srcinfo) }
228  .debug_sfnames  0 : { *(.debug_sfnames) }
229  /* DWARF 1.1 and DWARF 2 */
230  .debug_aranges  0 : { *(.debug_aranges) }
231  .debug_pubnames 0 : { *(.debug_pubnames) }
232  /* DWARF 2 */
233  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
234  .debug_abbrev   0 : { *(.debug_abbrev) }
235  .debug_line     0 : { *(.debug_line) }
236  .debug_frame    0 : { *(.debug_frame) }
237  .debug_str      0 : { *(.debug_str) }
238  .debug_loc      0 : { *(.debug_loc) }
239  .debug_macinfo  0 : { *(.debug_macinfo) }
240  /* SGI/MIPS DWARF 2 extensions */
241  .debug_weaknames 0 : { *(.debug_weaknames) }
242  .debug_funcnames 0 : { *(.debug_funcnames) }
243  .debug_typenames 0 : { *(.debug_typenames) }
244  .debug_varnames  0 : { *(.debug_varnames) }
245  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
246  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }
247  /DISCARD/ : { *(.note.GNU-stack) *(.isr_vector) }
248}
249