nuttx/boards/arm/kinetis/freedom-k28f/scripts/flash.ld

/****************************************************************************
 * boards/arm/kinetis/freedom-k28f/scripts/flash.ld
 *
 *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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 NuttX 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 OWNER 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.
 *
 ****************************************************************************/

/* The MK28FN2M0VMI15 has 2Mb of FLASH beginning at address 0x0000:0000 and
 * 1024Kb of SRAM as follows.

 * This device contains TCRAM that is tightly coupled to the ARM Cortex-M4
 * core as well as OCRAM that is not tightly coupled to ARM Cortex-M4 core.
 * The TCRAM is split into SRAM_L and SRAM_U regions where the SRAM_L and
 * SRAM_U ranges form a contiguous block in the memory map anchored at
 * address 0x20000000. As such:
 *
 * - SRAM_L is anchored at address 0x20000000 and occupies the space below
 *   this address, that is, addresses less than 0x20000000.
 * - SRAM_U is anchored at address 0x2000_0000 and occupies the space at and
 *   above this beginning address, that is, addresses greater than or equal
 *   to 0x20000000.
 *
 * FLASH is arranged as 4 blocks of 512 kB of program flash each block
 * consisting of 4Kb sectors.  The first part of the K28F FLASH region is
 * reserved for interrupt vectflash.
 */

MEMORY
{
  vectflash (rx)  : ORIGIN = 0x00000000, LENGTH = 1K
  cfmprotect (rx) : ORIGIN = 0x00000400, LENGTH = 16
  progflash (rx)  : ORIGIN = 0x00000800, LENGTH = 1M - 2K
  tcm (rwx)       : ORIGIN = 0x1ffc0000, LENGTH = 512K
  ocram (rwx)     : ORIGIN = 0x34000000, LENGTH = 512K
}

OUTPUT_ARCH(arm)
EXTERN(_vectors)
ENTRY(_stext)
EXTERN(__flashconfigbytes)
SECTIONS
{
    .vectors :
    {
        _svectors = ABSOLUTE(.);
        *(.vectors)
        _evectors = ABSOLUTE(.);
    } > vectflash

    .cfmprotect :
    {
        KEEP(*(.cfmconfig))
    } > cfmprotect

    .text :
    {
        _stext = ABSOLUTE(.);
        *(.text .text.*)
        *(.fixup)
        *(.gnu.warning)
        *(.rodata .rodata.*)
        *(.gnu.linkonce.t.*)
        *(.glue_7)
        *(.glue_7t)
        *(.got)
        *(.gcc_except_table)
        *(.gnu.linkonce.r.*)
        _etext = ABSOLUTE(.);
    } > progflash

    .init_section :
    {
        _sinit = ABSOLUTE(.);
        *(.init_array .init_array.*)
        _einit = ABSOLUTE(.);
    } > progflash

    .ARM.extab :
    {
        *(.ARM.extab*)
    } > progflash

    .ARM.exidx :
    {
        __exidx_start = ABSOLUTE(.);
        *(.ARM.exidx*)
        __exidx_end = ABSOLUTE(.);
    } > progflash

    .data :
    {
        _sdata = ABSOLUTE(.);
        *(.data .data.*)
        *(.gnu.linkonce.d.*)
        CONSTRUCTORS
        _edata = ABSOLUTE(.);
    } > ocram AT > progflash

    _eronly = LOADADDR(.data);

    .ramfunc ALIGN(4):
    {
        _sramfuncs = ABSOLUTE(.);
        *(.ramfunc  .ramfunc.*)
        _eramfuncs = ABSOLUTE(.);
    } > ocram AT > progflash

    _framfuncs = LOADADDR(.ramfunc);

    .bss :
    {
        _sbss = ABSOLUTE(.);
        *(.bss .bss.*)
        *(.gnu.linkonce.b.*)
        *(COMMON)
               . = ALIGN(4);
        _ebss = ABSOLUTE(.);
    } > ocram

    /* 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) }
    .debug_abbrev 0 : { *(.debug_abbrev) }
    .debug_info 0 : { *(.debug_info) }
    .debug_line 0 : { *(.debug_line) }
    .debug_pubnames 0 : { *(.debug_pubnames) }
    .debug_aranges 0 : { *(.debug_aranges) }
}