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linkcmds.m5484FireEngine.flash @ 69effbb4

4.104.114.95

Last change on this file since 69effbb4 was 69effbb4, checked in by Thomas Doerfler <Thomas.Doerfler@…>, on 07/11/08 at 10:00:41
added variant to gen68360 BSP added genmcf548x BSP
Property mode set to `100644`
File size: 9.7 KB

Line
1	/===============================================================\
2	\| Project: RTEMS generic mcf548x BSP \|
3	+-----------------------------------------------------------------+
4	\| File: linkcmd.m5484FireEngine.flash \|
5	+-----------------------------------------------------------------+
6	\| The file contains the linker directives for the generic MCF548x \|
7	\| BSP to be used with an m5484FireEngine EVB to load and execute \|
8	\| code in the boot FLASH. \|
9	+-----------------------------------------------------------------+
10	\| Copyright (c) 2007 \|
11	\| Embedded Brains GmbH \|
12	\| Obere Lagerstr. 30 \|
13	\| D-82178 Puchheim \|
14	\| Germany \|
15	\| rtems@embedded-brains.de \|
16	+-----------------------------------------------------------------+
17	\| \|
18	\| Parts of the code has been derived from the "dBUG source code" \|
19	\| package Freescale is providing for M548X EVBs. The usage of \|
20	\| the modified or unmodified code and it's integration into the \|
21	\| generic mcf548x BSP has been done according to the Freescale \|
22	\| license terms. \|
23	\| \|
24	\| The Freescale license terms can be reviewed in the file \|
25	\| \|
26	\| Freescale_license.txt \|
27	\| \|
28	+-----------------------------------------------------------------+
29	\| \|
30	\| The generic mcf548x BSP has been developed on the basic \|
31	\| structures and modules of the av5282 BSP. \|
32	\| \|
33	+-----------------------------------------------------------------+
34	\| \|
35	\| The license and distribution terms for this file may be \|
36	\| found in the file LICENSE in this distribution or at \|
37	\| \|
38	\| http://www.rtems.com/license/LICENSE. \|
39	\| \|
40	+-----------------------------------------------------------------+
41	\| \|
42	\| date history ID \|
43	\| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \|
44	\| 12.11.07 1.0 ras \|
45	\| \|
46	\===============================================================/
47
48	/*
49	* Location and size of on-chip devices
50	*/
51	_SdramBase = DEFINED(_SdramBase) ? _SdramBase : 0x00000000;
52	_SdramSize = DEFINED(_SdramSize) ? _SdramSize : (64 * 1024 * 1024);
53	_SysSramBase = DEFINED(_SysSramBase) ? _SysSramBase : __MBAR + 0x00010000;
54	_SysSramSize = DEFINED(_SysSramSize) ? _SysSramSize : (32 * 1024);
55	_McdapiBase = DEFINED(_McdapiBase) ? _McdapiBase : _SysSramBase;
56	_McdapiSize = DEFINED(_McdapiSize) ? _McdapiSize : (12 * 1024);
57	_CoreSramBase0 = DEFINED(_CoreSramBase0) ? _CoreSramBase0 : 0x20000000;
58	_CoreSramBase1 = DEFINED(_CoreSramBase1) ? _CoreSramBase1 : 0x20001000;
59	_CoreSramSize0 = DEFINED(_CoreSramSize0) ? _CoreSramSize0 : (4 * 1024);
60	_CoreSramSize1 = DEFINED(_CoreSramSize1) ? _CoreSramSize1 : (4 * 1024);
61	_BootFlashBase = DEFINED(_BootFlashBase) ? _BootFlashBase : 0xFF800000;
62	_BootFlashSize = DEFINED(_BootFlashSize) ? _BootFlashSize : (2 * 1024 * 1024);
63	_CodeFlashBase = DEFINED(_CodeFlashBase) ? _CodeFlashBase : 0xE0000000;
64	_CodeFlashSize = DEFINED(_CodeFlashSize) ? _CodeFlashSize : (16 * 1024 * 1024);
65
66	_VectorRam = DEFINED(_VectorRam) ? _VectorRam : _SdramBase;
67	_DataRam = DEFINED(_DataRam) ? _DataRam : _data_dest_start;
68	_DataRom = DEFINED(_DataRom) ? _DataRom : _data_src_start;
69	_DataEnd = DEFINED(_DataEnd) ? _DataEnd : _data_dest_end;
70	_BssStart = DEFINED(_BssStart) ? _BssStart : _clear_start;
71	_BssEnd = DEFINED(_BssEnd) ? _BssEnd : _clear_end;
72	_SpInit = DEFINED(_SpInit) ? _SpInit : _EndInitStackSpace;
73	_InitPc = DEFINED(_InitPc) ? _InitPc : _SdramBase + 0x400;
74
75	_InitStackSize = DEFINED(StackSize) ? StackSize : 0x2000; /* 8 kB */
76	_TopRamReserved = DEFINED(_TopRamReserved) ? _TopRamReserved : 0;
77
78	_RamBase = DEFINED(_SdramBase) ? _SdramBase : _SdramBase;
79	_RamSize = DEFINED(_SdramSize) ? _SdramSize : _SdramSize;
80	_VBR = DEFINED(_VBR) ? _VBR : _RamBase;
81
82	__MBAR = DEFINED(__MBAR) ? __MBAR : 0x10000000;
83
84	ENTRY(start)
85	MEMORY
86	{
87	sdram : ORIGIN = 0x400 , LENGTH = 64M - 0x400
88	code_flash : ORIGIN = 0xE0000000, LENGTH = 16M
89	boot_flash : ORIGIN = 0xFF800000, LENGTH = 2M
90	}
91
92	SECTIONS
93	{
94
95	_header_offset = 0;
96
97	/*
98	* Text, data and bss segments .vectors
99	*/
100	.vectors : {
101	(.vectors)
102	} >boot_flash
103	.text : {
104
105	(.text)
106	*(.ram_code)
107
108	/*
109	* C++ constructors/destructors
110	*/
111	(.gnu.linkonce.t.)
112
113	/*
114	* Initialization and finalization code.
115	*
116	* Various files can provide initialization and finalization
117	* functions. crtbegin.o and crtend.o are two instances. The
118	* body of these functions are in .init and .fini sections. We
119	* accumulate the bodies here, and prepend function prologues
120	* from crti.o and function epilogues from crtn.o. crti.o must
121	* be linked first; crtn.o must be linked last. Because these
122	* are wildcards, it doesn't matter if the user does not
123	* actually link against crti.o and crtn.o; the linker won't
124	* look for a file to match a wildcard. The wildcard also
125	* means that it doesn't matter which directory crti.o and
126	* crtn.o are in.
127	*/
128	PROVIDE (_init = .);
129	*crti.o(.init)
130	*(.init)
131	*crtn.o(.init)
132	PROVIDE (_fini = .);
133	*crti.o(.fini)
134	*(.fini)
135	*crtn.o(.fini)
136
137	/*
138	* Special FreeBSD sysctl sections.
139	*/
140	. = ALIGN (16);
141	__start_set_sysctl_set = .;
142	(set_sysctl_);
143	__stop_set_sysctl_set = ABSOLUTE(.);
144	(set_domain_);
145	(set_pseudo_);
146
147
148	/*
149	* C++ constructors/destructors
150	*
151	* gcc uses crtbegin.o to find the start of the constructors
152	* and destructors so we make sure it is first. Because this
153	* is a wildcard, it doesn't matter if the user does not
154	* actually link against crtbegin.o; the linker won't look for
155	* a file to match a wildcard. The wildcard also means that
156	* it doesn't matter which directory crtbegin.o is in. The
157	* constructor and destructor list are terminated in
158	* crtend.o. The same comments apply to it.
159	*/
160	. = ALIGN (16);
161	*crtbegin.o(.ctors)
162	*(.ctors)
163	*crtend.o(.ctors)
164	*crtbegin.o(.dtors)
165	*(.dtors)
166	*crtend.o(.dtors)
167
168	/*
169	* Exception frame info
170	*/
171	. = ALIGN (16);
172	*(.eh_frame)
173
174	/*
175	* Read-only data
176	*/
177	. = ALIGN (16);
178	_rodata_start = . ;
179	(.rodata)
180	(.gnu.linkonce.r)
181
182	. = ALIGN (16);
183
184	*(.console_gdb_xfer)
185	*(.bootstrap_data)
186	. = ALIGN(16);
187	_estuff = .;
188	PROVIDE (_etext = .);
189	} >boot_flash
190
191	.data : AT(LOADADDR(.text) + SIZEOF(.text)) {
192	/.data : {/
193	PROVIDE( _data_dest_start = . );
194	PROVIDE( _copy_start = .);
195	(.data)
196	(.gnu.linkonce.d)
197	*(.gcc_except_table)
198	*(.jcr)
199	. = ALIGN (16);
200	PROVIDE (_edata = .);
201	PROVIDE (_copy_end = .);
202	PROVIDE (_data_dest_end = . );
203	} >sdram
204
205	_data_src_start = _etext; /LOADADDR(.data);/
206	_data_src_end = _data_src_start + SIZEOF(.data);
207
208	.bss : {
209	PROVIDE (_clear_start = .);
210	(.bss)
211	*(COMMON)
212	. = ALIGN (16);
213	PROVIDE (end = .);
214	PROVIDE (_clear_end = .);
215	. = ALIGN (4);
216	PROVIDE (_StartInitStackSpace = .);
217	/. = _StartInitStackSpace + _InitStackSize;/
218	. += _InitStackSize;
219	PROVIDE (_EndInitStackSpace = .);
220	PROVIDE (_WorkspaceBase = .);
221	} >sdram
222	/* Stabs debugging sections. */
223	.stab 0 : { *(.stab) }
224	.stabstr 0 : { *(.stabstr) }
225	.stab.excl 0 : { *(.stab.excl) }
226	.stab.exclstr 0 : { *(.stab.exclstr) }
227	.stab.index 0 : { *(.stab.index) }
228	.stab.indexstr 0 : { *(.stab.indexstr) }
229	.comment 0 : { *(.comment) }
230
231	PROVIDE (end_of_all = .);
232	}

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