zephyr/arch/x86/core/reboot_rst_cnt.c
Kumar Gala a1b77fd589 zephyr: replace zephyr integer types with C99 types
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00

41 lines
764 B
C

/*
* Copyright (c) 2015 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file x86-specific reboot functionalities
*
* @details Implements the required 'arch' sub-APIs.
*/
#include <kernel.h>
#include <power/reboot.h>
/* reboot through Reset Control Register (I/O port 0xcf9) */
#define X86_RST_CNT_REG 0xcf9
#define X86_RST_CNT_SYS_RST 0x02
#define X86_RST_CNT_CPU_RST 0x4
#define X86_RST_CNT_FULL_RST 0x08
static inline void cold_reboot(void)
{
uint8_t reset_value = X86_RST_CNT_CPU_RST | X86_RST_CNT_SYS_RST |
X86_RST_CNT_FULL_RST;
sys_out8(reset_value, X86_RST_CNT_REG);
}
void sys_arch_reboot(int type)
{
switch (type) {
case SYS_REBOOT_COLD:
cold_reboot();
break;
default:
/* do nothing */
break;
}
}