a2686e581e
Create a dedicated header file with all the definitions for the flash lock bit page and customer configuration area. This avoids duplicating those definitions in the startup-gcc.c files of all CC2538-based platforms, and this also allows to easily manipulate the CCA from outside startup-gcc.c (e.g. for on-the-air firmware update). The definitions are now complete contrary to what was in startup-gcc.c: - Definitions have been added to select the bootloader backdoor pin and active level if enabled. - Definitions have been added to access the page and debug lock bits. The debug lock bit can be used to prevent someone from reading back a programmed firmware through JTAG if the firmware binary image has to be confidential, which should be combined with a disabled bootloader backdoor. - The application entry point is now tied to the beginning of the .text section instead of to the beginning of the flash. This allows projects using custom linker scripts to place the application entry point anywhere in the flash, which can be useful e.g. for on-the-air firmware update. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
102 lines
3.0 KiB
Plaintext
102 lines
3.0 KiB
Plaintext
/*
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* Copyright (c) 2013, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* cc2538 linker configuration file. This is not the actual file used at link
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* stage. Rather, it is used as input for the auto-generation of the actual
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* ld script, which is called cc2538.ld and will be in the project directory
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*/
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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#define NRSRAM_START 0x20000000
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#define NRSRAM_LEN 0x00004000
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#define SRAM_START 0x20004000
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#define SRAM_LEN 0x00004000
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#else
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#define SRAM_START 0x20000000
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#define SRAM_LEN 0x00008000
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#endif
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MEMORY
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{
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FLASH (rx) : ORIGIN = 0x200000, LENGTH = 0x0007FFD4
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FLASH_CCA (RX) : ORIGIN = 0x0027FFD4, LENGTH = 44
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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NRSRAM (RWX) : ORIGIN = NRSRAM_START, LENGTH = NRSRAM_LEN
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#endif
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SRAM (RWX) : ORIGIN = SRAM_START, LENGTH = SRAM_LEN
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}
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SECTIONS
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{
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.text :
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{
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_text = .;
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KEEP(*(.vectors))
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*(.text*)
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*(.rodata*)
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_etext = .;
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} > FLASH= 0
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.data :
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{
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_data = .;
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*(vtable)
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*(.data*)
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_edata = .;
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} > SRAM AT > FLASH
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.ARM.exidx :
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{
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*(.ARM.exidx*)
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} > FLASH
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.bss :
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{
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_bss = .;
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*(.bss*)
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*(COMMON)
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_ebss = .;
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} > SRAM
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#if (LPM_CONF_MAX_PM==2) && (LPM_CONF_ENABLE != 0)
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.nrdata :
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{
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_nrdata = .;
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*(.nrdata*)
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_enrdata = .;
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} > NRSRAM
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#endif
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.flashcca :
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{
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KEEP(*(.flashcca))
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} > FLASH_CCA
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}
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