mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 23:20:51 +07:00
35 lines
1001 B
C
35 lines
1001 B
C
|
/*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
#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);
|
||
|
|
}
|