Subversion Repositories zipcpu

/*******************************************************************************
*
* Filename:     zipsim.ld
*
* Project:      Zip CPU -- a small, lightweight, RISC CPU soft core
*
* Purpose:      This script provides a description of the memory on the Arty,
*               for the purposes of where to place programs in memory during
*               linking.
*
* Creator:      Dan Gisselquist, Ph.D.
*               Gisselquist Technology, LLC
*
********************************************************************************
*
* Copyright (C) 2017, Gisselquist Technology, LLC
*
* This program is free software (firmware): you can redistribute it and/or
* modify it under the terms of  the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program.  (It's in the $(ROOT)/doc directory.  Run make with no
* target there if the PDF file isn't present.)  If not, see
* <http://www.gnu.org/licenses/> for a copy.
*
* License:      GPL, v3, as defined and found on www.gnu.org,
*               http://www.gnu.org/licenses/gpl.html
*
*
*******************************************************************************/

ENTRY(_start)

MEMORY
{
        flash  (wx) : ORIGIN = 0x01000000, LENGTH = 0x01000000 /* 2^24 =  16MB */
        sdram  (wx) : ORIGIN = 0x10000000, LENGTH = 0x10000000 /* 2^28 = 256MB */
}

_flash  = ORIGIN(flash);
_blkram = 0;
_sdram  = ORIGIN(sdram);
_top_of_stack = ORIGIN(sdram) + LENGTH(sdram) - 4;

SECTIONS
{
        .rocode ORIGIN(flash) : {
                _boot_address = .;
                *(.start)
                } > flash
        _kernel_image_start = . ;
        _kernel_image_end = . ;
        _sdram_image_start = . ;
        .ramcode ORIGIN(sdram) : {
                *(.kernel)
                *(.text.startup)
                *(.text)
                *(.rodata*) *(.strings)
                *(.data) *(COMMON)
                }> sdram AT> flash
        _sdram_image_end = . ;
        .bss : {
                *(.bss)
                _bss_image_end = . ;
                } > sdram
        _top_of_heap = .;
}