blob: 4ea424d320c08be3da8958240841e664082cf0da [file] [log] [blame]
Graeme Russc620c012008-12-07 10:28:57 +11001/*
2 * (C) Copyright 2002
3 * Daniel Engström, Omicron Ceti AB, daniel@omicron.se.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
25OUTPUT_ARCH(i386)
26ENTRY(_start)
27
28SECTIONS
29{
30 . = 0x38040000; /* Location of bootcode in flash */
31 .text : { *(.text); }
32
33 . = ALIGN(4);
Trent Piephof62fb992009-02-18 15:22:05 -080034 .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
Graeme Russc620c012008-12-07 10:28:57 +110035
36 _i386boot_text_size = SIZEOF(.text) + SIZEOF(.rodata);
37
38 . = 0x03FF0000; /* Ram data segment to use */
39 _i386boot_romdata_dest = ABSOLUTE(.);
40 .data : AT ( LOADADDR(.rodata) + SIZEOF(.rodata) ) { *(.data) }
41 _i386boot_romdata_start = LOADADDR(.data);
42
43 . = ALIGN(4);
44 .got : AT ( LOADADDR(.data) + SIZEOF(.data) ) { *(.got) }
45
46 . = ALIGN(4);
47 __u_boot_cmd_start = .;
48 .u_boot_cmd : { *(.u_boot_cmd) }
49 __u_boot_cmd_end = .;
50 _i386boot_cmd_start = LOADADDR(.u_boot_cmd);
51
52 _i386boot_romdata_size = SIZEOF(.data) + SIZEOF(.got) + SIZEOF(.u_boot_cmd);
53
54 . = ALIGN(4);
55 _i386boot_bss_start = ABSOLUTE(.);
56 .bss (NOLOAD) : { *(.bss) }
57 _i386boot_bss_size = SIZEOF(.bss);
58
59 /* 16bit realmode trampoline code */
60 .realmode 0x7c0 : AT ( LOADADDR(.got) + SIZEOF(.got) + SIZEOF(.u_boot_cmd)) { *(.realmode) }
61
62 _i386boot_realmode = LOADADDR(.realmode);
63 _i386boot_realmode_size = SIZEOF(.realmode);
64
65 /* 16bit BIOS emulation code (just enough to boot Linux) */
66 .bios 0 : AT ( LOADADDR(.realmode) + SIZEOF(.realmode) ) { *(.bios) }
67
68 _i386boot_bios = LOADADDR(.bios);
69 _i386boot_bios_size = SIZEOF(.bios);
70
71 /* The load addresses below assumes that the flash
72 * will be mapped so that 0x387f0000 == 0xffff0000
73 * at reset time
74 *
75 * The fe00 and ff00 offsets of the start32 and start16
76 * segments are arbitrary, the just have to be mapped
77 * at reset and the code have to fit.
Graeme Russ85ffbbd2008-12-07 10:28:58 +110078 * The fff0 offset of resetvec is important, however.
Graeme Russc620c012008-12-07 10:28:57 +110079 */
80
81 . = 0xfffffe00;
82 .start32 : AT (0x3807fe00) { *(.start32); }
83
84 . = 0xf800;
85 .start16 : AT (0x3807f800) { *(.start16); }
86
87 . = 0xfff0;
Graeme Russ85ffbbd2008-12-07 10:28:58 +110088 .resetvec : AT (0x3807fff0) { *(.resetvec); }
89 _i386boot_end = (LOADADDR(.resetvec) + SIZEOF(.resetvec) );
Graeme Russc620c012008-12-07 10:28:57 +110090}