blob: d6dc518b1dde9b3e640eabda4e703f5bf1abd3b1 (
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
|
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include "iomap.h"
#include "common.h"
#include "control.h"
#include "prm3xxx.h"
#define TI81XX_PRM_DEVICE_RSTCTRL 0x00a0
#define TI81XX_GLOBAL_RST_COLD BIT(1)
/**
* ti81xx_restart - trigger a software restart of the SoC
* @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
* @cmd: passed from the userspace program rebooting the system (if provided)
*
* Resets the SoC. For @cmd, see the 'reboot' syscall in
* kernel/sys.c. No return value.
*
* NOTE: Warm reset does not seem to work, may require resetting
* clocks to bypass mode.
*/
void ti81xx_restart(enum reboot_mode mode, const char *cmd)
{
omap2_prm_set_mod_reg_bits(TI81XX_GLOBAL_RST_COLD, 0,
TI81XX_PRM_DEVICE_RSTCTRL);
while (1);
}
|
