blob: 1ebe66129d1cfb02538cd9c4284cc27b649230b4 (
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
60
61
62
63
|
/* u-boot driver for the GTA04 shutdown
*
* Copyright (C) 2010 by Golden Delicious Computers GmbH&Co. KG
* Author: H. Nikolaus Schaller <hns@goldelico.com>
* All rights reserved.
*
* 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/errno.h>
#include <asm/io.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/gpio.h>
#include <asm/mach-types.h>
#include <twl4030.h>
#include "shutdown.h"
void shutdown(void)
{
u8 val = 0;
if(i2c_set_bus_num(0))
{
printf ("could not select I2C1\n");
return;
}
printf("shutting down by writing DEVOFF register of TPS65950\n");
if (twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, &val,
TWL4030_PM_MASTER_P1_SW_EVENTS)) {
printf("Error:TWL4030: failed to read the power register\n");
printf("Could not initialize hardware reset\n");
} else {
val |= TWL4030_PM_MASTER_SW_EVENTS_DEVOFF;
if (twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, val,
TWL4030_PM_MASTER_P1_SW_EVENTS)) {
printf("Error:TWL4030: failed to write the power register\n");
printf("Could not initialize hardware reset\n");
}
}
// CHECKME: do we have to write PM_MASTER_P2 and _P3?
}
void suspend(void)
{
// enable the AUX button interrupt for Wakeup
// suspend (sleep) the CPU
// the TPS should remain powered on
}
|
