mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 13:11:45 +00:00
bc7235c97f
We are missing proper hooks for 81xx for reboot to work. Cc: Brian Hutchinson <b.hutchman@gmail.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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);
|
|
}
|