2b1ddc8490
The original submitter of this squished everything into one series, and has not returned. The code mostly appears good, and review comments were followed for the most part. The project doesn't really maintain any testing or board farm for sam3/sam4 parts, so we're going to just trust our users. Reviewed-by: Karl Palsson <karlp@tweak.net.au> sam/4l: IRQ Configuration file (irq.json) sam/4l: Basic Memory Map. sam/4l: GPIO Defines. sam/4l: GPIO Functions Added everything that needed to compile the library: Makefile, Linker Script and common includes. sam/4l: SCIF function to start OSC. sam/4l: GPIO Enable/Disable and Multiplexing configuration functions. sam/4l: PLL Clock configuration. sam/4l: Peripheral clock configuration and basic USART support. sam: USART Character length configuration. sam/4l: Generic Clock configuration functions. sam/4l: Analog to Digital Converter Interface (ADCIFE) basic support.
106 lines
2.5 KiB
Plaintext
106 lines
2.5 KiB
Plaintext
/*
|
|
* This file is part of the libopencm3 project.
|
|
*
|
|
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* Generic linker script for SAM4L targets using libopencm3. */
|
|
|
|
/* Memory regions must be defined in the ld script which includes this one. */
|
|
|
|
/* Enforce emmition of the vector table. */
|
|
EXTERN (vector_table)
|
|
|
|
/* Define the entry point of the output file. */
|
|
ENTRY(reset_handler)
|
|
|
|
/* Define sections. */
|
|
SECTIONS
|
|
{
|
|
.text : {
|
|
*(.vectors) /* Vector table */
|
|
*(.text*) /* Program code */
|
|
. = ALIGN(4);
|
|
*(.rodata*) /* Read-only data */
|
|
. = ALIGN(4);
|
|
} >rom
|
|
|
|
/* C++ Static constructors/destructors, also used for __attribute__
|
|
* ((constructor)) and the likes */
|
|
.preinit_array : {
|
|
. = ALIGN(4);
|
|
__preinit_array_start = .;
|
|
KEEP (*(.preinit_array))
|
|
__preinit_array_end = .;
|
|
} >rom
|
|
.init_array : {
|
|
. = ALIGN(4);
|
|
__init_array_start = .;
|
|
KEEP (*(SORT(.init_array.*)))
|
|
KEEP (*(.init_array))
|
|
__init_array_end = .;
|
|
} >rom
|
|
.fini_array : {
|
|
. = ALIGN(4);
|
|
__fini_array_start = .;
|
|
KEEP (*(.fini_array))
|
|
KEEP (*(SORT(.fini_array.*)))
|
|
__fini_array_end = .;
|
|
} >rom
|
|
|
|
/*
|
|
* Another section used by C++ stuff, appears when using newlib with
|
|
* 64bit (long long) printf support
|
|
*/
|
|
.ARM.extab : {
|
|
*(.ARM.extab*)
|
|
} >rom
|
|
.ARM.exidx : {
|
|
__exidx_start = .;
|
|
*(.ARM.exidx*)
|
|
__exidx_end = .;
|
|
} >rom
|
|
|
|
. = ALIGN(4);
|
|
_etext = .;
|
|
|
|
.data : {
|
|
_data = .;
|
|
*(.data*) /* Read-write initialized data */
|
|
. = ALIGN(4);
|
|
_edata = .;
|
|
} >ram AT >rom
|
|
_data_loadaddr = LOADADDR(.data);
|
|
|
|
.bss : {
|
|
*(.bss*) /* Read-write zero initialized data */
|
|
*(COMMON)
|
|
. = ALIGN(4);
|
|
_ebss = .;
|
|
} >ram
|
|
|
|
/*
|
|
* The .eh_frame section appears to be used for C++ exception handling.
|
|
* You may need to fix this if you're using C++.
|
|
*/
|
|
/DISCARD/ : { *(.eh_frame) }
|
|
|
|
. = ALIGN(4);
|
|
end = .;
|
|
}
|
|
|
|
PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
|