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omap: add basic SPL support
[people/ms/u-boot.git] / arch / arm / cpu / armv7 / omap-common / spl.c
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A
1/*
2 * (C) Copyright 2010
3 * Texas Instruments, <www.ti.com>
4 *
5 * Aneesh V <aneesh@ti.com>
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25#include <common.h>
26#include <asm/u-boot.h>
27#include <asm/arch/sys_proto.h>
28#include <timestamp_autogenerated.h>
29#include <version_autogenerated.h>
30
31DECLARE_GLOBAL_DATA_PTR;
32
33/* Define global data structure pointer to it*/
34static gd_t gdata __attribute__ ((section(".data")));
35static bd_t bdata __attribute__ ((section(".data")));
36
37inline void hang(void)
38{
39 puts("### ERROR ### Please RESET the board ###\n");
40 for (;;)
41 ;
42}
43
44void board_init_f(ulong dummy)
45{
46 /*
47 * We call relocate_code() with relocation target same as the
48 * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting
49 * skipped. Instead, only .bss initialization will happen. That's
50 * all we need
51 */
52 debug(">>board_init_f()\n");
53 relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE);
54}
55
56void board_init_r(gd_t *id, ulong dummy)
57{
58 for (;;)
59 ;
60}
61
62void preloader_console_init(void)
63{
64 const char *u_boot_rev = U_BOOT_VERSION;
65 char rev_string_buffer[50];
66
67 gd = &gdata;
68 gd->bd = &bdata;
69 gd->flags |= GD_FLG_RELOC;
70 gd->baudrate = CONFIG_BAUDRATE;
71
72 setup_clocks_for_console();
73 serial_init(); /* serial communications setup */
74
75 /* Avoid a second "U-Boot" coming from this string */
76 u_boot_rev = &u_boot_rev[7];
77
78 printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE,
79 U_BOOT_TIME);
80 omap_rev_string(rev_string_buffer);
81 printf("Texas Instruments %s\n", rev_string_buffer);
82}