osd-contiki/cpu/cc2538/cc2538.lds
Benoît Thébaudeau 790c253d6d cc2538: Define and use device features
Define the available CC2538 devices and their features, and use them to
define the linker script memory regions. The .nrdata output section is
now always defined in order to trigger an error if it is used but no
memory is available for it. The CC2538 device used by Contiki is made a
configuration option, the CC2538SF53 device being the default.

This makes more sense than defining the flash memory address and size as
configuration options like previously, all the more not all values are
possible and all the features are linked by each device.

This change also makes it possible to:
 - use the correct SRAM parameters for the CC2538NF11,
 - know at build time if the AES, SHA, ECC and RSA hardware features are
   available on the selected CC2538 device.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:18:33 +01:00

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/*
* Copyright (c) 2013, Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* cc2538 linker configuration file. This is not the actual file used at link
* stage. Rather, it is used as input for the auto-generation of the actual
* ld script, which is called cc2538.ld and will be in the project directory
*/
MEMORY
{
FLASH_FW (rx) : ORIGIN = CC2538_DEV_FLASH_ADDR,
LENGTH = CC2538_DEV_FLASH_SIZE - FLASH_CCA_SIZE
FLASH_CCA (RX) : ORIGIN = FLASH_CCA_ADDR, LENGTH = FLASH_CCA_SIZE
/*
* If PM2 is enabled, then the PM2 SRAM limitations apply, i.e. the
* regular-leakage SRAM is a non-retention SRAM and the low-leakage SRAM is
* a full-retention SRAM.
* Else, the data in the regular-leakage SRAM is always retained, so there
* are virtually a non-retention SRAM with a size of 0 bytes and a
* full-retention SRAM spanning the whole SRAM, which is more convenient to
* use.
*/
#if LPM_CONF_ENABLE && LPM_CONF_MAX_PM >= 2
NRSRAM (RWX) : ORIGIN = CC2538_DEV_RLSRAM_ADDR,
LENGTH = CC2538_DEV_RLSRAM_SIZE
FRSRAM (RWX) : ORIGIN = CC2538_DEV_LLSRAM_ADDR,
LENGTH = CC2538_DEV_LLSRAM_SIZE
#else
NRSRAM (RWX) : ORIGIN = CC2538_DEV_RLSRAM_ADDR, LENGTH = 0
FRSRAM (RWX) : ORIGIN = CC2538_DEV_SRAM_ADDR, LENGTH = CC2538_DEV_SRAM_SIZE
#endif
}
SECTIONS
{
.text :
{
_text = .;
KEEP(*(.vectors))
*(.text*)
*(.rodata*)
_etext = .;
} > FLASH_FW= 0
.socdata (NOLOAD) :
{
*(.udma_channel_control_table)
} > FRSRAM
.data : ALIGN(4)
{
_data = .;
*(.data*)
_edata = .;
} > FRSRAM AT > FLASH_FW
_ldata = LOADADDR(.data);
.ARM.exidx :
{
*(.ARM.exidx*)
} > FLASH_FW
.bss :
{
_bss = .;
*(.bss*)
*(COMMON)
_ebss = .;
} > FRSRAM
.stack (NOLOAD) :
{
*(.stack)
} > FRSRAM
.nrdata (NOLOAD) :
{
_nrdata = .;
*(.nrdata*)
_enrdata = .;
} > NRSRAM
.flashcca :
{
KEEP(*(.flashcca))
} > FLASH_CCA
}