linux/arch/arm/mach-imx/mach-imx25.c
Fabio Estevam 8c4300c227 ARM: mx25: Add basic suspend/resume support
Tested basic suspend/resume on a mx25pdk:

$ echo enabled > /sys/class/tty/ttymxc0/power/wakeup
$ echo mem > /sys/power/state

Then press any key in the serial console and the system wakes up.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-02-14 11:24:18 +08:00

48 lines
1.1 KiB
C

/*
* Copyright 2012 Sascha Hauer, Pengutronix
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/irq.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include "common.h"
#include "hardware.h"
static void __init imx25_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX25);
}
static void __init mx25_init_irq(void)
{
struct device_node *np;
void __iomem *avic_base;
np = of_find_compatible_node(NULL, NULL, "fsl,avic");
avic_base = of_iomap(np, 0);
BUG_ON(!avic_base);
mxc_init_irq(avic_base);
}
static const char * const imx25_dt_board_compat[] __initconst = {
"fsl,imx25",
NULL
};
DT_MACHINE_START(IMX25_DT, "Freescale i.MX25 (Device Tree Support)")
.init_early = imx25_init_early,
.init_late = imx25_pm_init,
.init_irq = mx25_init_irq,
.dt_compat = imx25_dt_board_compat,
MACHINE_END