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/*===============================================================*\
| Project: RTEMS generic mcf548x BSP |
+-----------------------------------------------------------------+
| File: linkcmd.m5484FireEngine.flash |
+-----------------------------------------------------------------+
| The file contains the linker directives for the generic MCF548x |
| BSP to be used with an m5484FireEngine EVB to load and execute |
| code in the boot FLASH. |
+-----------------------------------------------------------------+
| Copyright (c) 2007 |
| Embedded Brains GmbH |
| Obere Lagerstr. 30 |
| D-82178 Puchheim |
| Germany |
| rtems@embedded-brains.de |
+-----------------------------------------------------------------+
| |
| Parts of the code has been derived from the "dBUG source code" |
| package Freescale is providing for M548X EVBs. The usage of |
| the modified or unmodified code and it's integration into the |
| generic mcf548x BSP has been done according to the Freescale |
| license terms. |
| |
| The Freescale license terms can be reviewed in the file |
| |
| Freescale_license.txt |
| |
+-----------------------------------------------------------------+
| |
| The generic mcf548x BSP has been developed on the basic |
| structures and modules of the av5282 BSP. |
| |
+-----------------------------------------------------------------+
| |
| The license and distribution terms for this file may be |
| found in the file LICENSE in this distribution or at |
| |
| http://www.rtems.com/license/LICENSE. |
| |
+-----------------------------------------------------------------+
| |
| date history ID |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 12.11.07 1.0 ras |
| |
\*===============================================================*/
/*
* Location and size of on-chip devices
*/
_SdramBase = DEFINED(_SdramBase) ? _SdramBase : 0x00000000;
_SdramSize = DEFINED(_SdramSize) ? _SdramSize : (64 * 1024 * 1024);
_SysSramBase = DEFINED(_SysSramBase) ? _SysSramBase : __MBAR + 0x00010000;
_SysSramSize = DEFINED(_SysSramSize) ? _SysSramSize : (32 * 1024);
_McdapiBase = DEFINED(_McdapiBase) ? _McdapiBase : _SysSramBase;
_McdapiSize = DEFINED(_McdapiSize) ? _McdapiSize : (12 * 1024);
_CoreSramBase0 = DEFINED(_CoreSramBase0) ? _CoreSramBase0 : 0x20000000;
_CoreSramBase1 = DEFINED(_CoreSramBase1) ? _CoreSramBase1 : 0x20001000;
_CoreSramSize0 = DEFINED(_CoreSramSize0) ? _CoreSramSize0 : (4 * 1024);
_CoreSramSize1 = DEFINED(_CoreSramSize1) ? _CoreSramSize1 : (4 * 1024);
_BootFlashBase = DEFINED(_BootFlashBase) ? _BootFlashBase : 0xFF800000;
_BootFlashSize = DEFINED(_BootFlashSize) ? _BootFlashSize : (2 * 1024 * 1024);
_CodeFlashBase = DEFINED(_CodeFlashBase) ? _CodeFlashBase : 0xE0000000;
_CodeFlashSize = DEFINED(_CodeFlashSize) ? _CodeFlashSize : (16 * 1024 * 1024);
_VectorRam = DEFINED(_VectorRam) ? _VectorRam : _SdramBase;
_DataRam = DEFINED(_DataRam) ? _DataRam : _data_dest_start;
_DataRom = DEFINED(_DataRom) ? _DataRom : _data_src_start;
_DataEnd = DEFINED(_DataEnd) ? _DataEnd : _data_dest_end;
_BssStart = DEFINED(_BssStart) ? _BssStart : _clear_start;
_BssEnd = DEFINED(_BssEnd) ? _BssEnd : _clear_end;
_SpInit = DEFINED(_SpInit) ? _SpInit : _EndInitStackSpace;
_InitStackSize = DEFINED(StackSize) ? StackSize : 0x2000; /* 8 kB */
_TopRamReserved= DEFINED(_TopRamReserved) ? _TopRamReserved : 0;
RamBase = DEFINED(_SdramBase) ? _SdramBase : _SdramBase;
RamSize = DEFINED(_SdramSize) ? _SdramSize : _SdramSize;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
_VBR = DEFINED(_VBR) ? _VBR : RamBase;
__MBAR = DEFINED(__MBAR) ? __MBAR : 0x10000000;
ENTRY(start)
MEMORY
{
sdram : ORIGIN = 0x400 , LENGTH = 64M - 0x400
code_flash : ORIGIN = 0xE0000000, LENGTH = 16M
boot_flash : ORIGIN = 0xFF800000, LENGTH = 2M
}
SECTIONS
{
_header_offset = 0;
/*
* Text, data and bss segments .vectors
*/
.vectors : {
*(.vectors*)
} >boot_flash
.text : {
*(.text*)
*(.ram_code)
/*
* C++ constructors/destructors
*/
*(.gnu.linkonce.t.*)
/*
* Initialization and finalization code.
*
* Various files can provide initialization and finalization
* functions. crtbegin.o and crtend.o are two instances. The
* body of these functions are in .init and .fini sections. We
* accumulate the bodies here, and prepend function prologues
* from crti.o and function epilogues from crtn.o. crti.o must
* be linked first; crtn.o must be linked last. Because these
* are wildcards, it doesn't matter if the user does not
* actually link against crti.o and crtn.o; the linker won't
* look for a file to match a wildcard. The wildcard also
* means that it doesn't matter which directory crti.o and
* crtn.o are in.
*/
PROVIDE (_init = .);
*crti.o(.init)
*(.init)
*crtn.o(.init)
PROVIDE (_fini = .);
*crti.o(.fini)
*(.fini)
*crtn.o(.fini)
/*
* Special FreeBSD sysctl sections.
*/
. = ALIGN (16);
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = ABSOLUTE(.);
*(set_domain_*);
*(set_pseudo_*);
/*
* C++ constructors/destructors
*
* gcc uses crtbegin.o to find the start of the constructors
* and destructors so we make sure it is first. Because this
* is a wildcard, it doesn't matter if the user does not
* actually link against crtbegin.o; the linker won't look for
* a file to match a wildcard. The wildcard also means that
* it doesn't matter which directory crtbegin.o is in. The
* constructor and destructor list are terminated in
* crtend.o. The same comments apply to it.
*/
. = ALIGN (16);
*crtbegin.o(.ctors)
*(.ctors)
*crtend.o(.ctors)
*crtbegin.o(.dtors)
*(.dtors)
*crtend.o(.dtors)
/*
* Exception frame info
*/
. = ALIGN (16);
*(.eh_frame)
/*
* Read-only data
*/
. = ALIGN (16);
_rodata_start = . ;
*(.rodata*)
*(.gnu.linkonce.r*)
. = ALIGN (16);
*(.console_gdb_xfer)
*(.bootstrap_data)
. = ALIGN(16);
_estuff = .;
PROVIDE (_etext = .);
} >boot_flash
.data : AT(LOADADDR(.text) + SIZEOF(.text)) {
/*.data : {*/
PROVIDE( _data_dest_start = . );
PROVIDE( _copy_start = .);
*(.data*)
*(.gnu.linkonce.d*)
*(.gcc_except_table*)
*(.jcr)
. = ALIGN (16);
PROVIDE (_edata = .);
PROVIDE (_copy_end = .);
PROVIDE (_data_dest_end = . );
} >sdram
_data_src_start = _etext; /*LOADADDR(.data);*/
_data_src_end = _data_src_start + SIZEOF(.data);
.bss : {
PROVIDE (_clear_start = .);
*(.bss*)
*(COMMON)
. = ALIGN (16);
PROVIDE (end = .);
PROVIDE (_clear_end = .);
. = ALIGN (4);
PROVIDE (_StartInitStackSpace = .);
/*. = _StartInitStackSpace + _InitStackSize;*/
. += _InitStackSize;
PROVIDE (_EndInitStackSpace = .);
PROVIDE (WorkAreaBase = .);
} >sdram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
PROVIDE (end_of_all = .);
}
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