blob: a4ddf29294b20e99d1fd33b9dae83bbba67a5884 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* Copyright (c) 2009 Wind River Systems, Inc.
* Tom Rix <Tom.Rix@windriver.com>
*
* This program is free software; 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 2 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
* MERCHANTABILITY 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#include <common.h>
#include <asm/arch/cpu.h>
#include <asm/io.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>
#define DEBUG_BOARD_CONNECTED 1
#define DEBUG_BOARD_NOT_CONNECTED 0
static int debug_board_connected = DEBUG_BOARD_CONNECTED;
static void zoom2_debug_board_detect (void)
{
int val = 0;
if (!omap_request_gpio(158)) {
/*
* GPIO to query for debug board
* 158 db board query
*/
omap_set_gpio_direction(158, 1);
val = omap_get_gpio_datain(158);
omap_free_gpio(158);
}
if (!val)
debug_board_connected = DEBUG_BOARD_NOT_CONNECTED;
}
int zoom2_debug_board_connected (void)
{
static int first_time = 1;
if (first_time) {
zoom2_debug_board_detect ();
first_time = 0;
}
return debug_board_connected;
}
|
