mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-04 05:50:17 +00:00
928f3248b3
This supports the system reset via PSCI for ARMv7 SoCs. Because the system reset is not supported on PSCI 0.1, let's define CONFIG_ARMV7_PSCI_1_0. (it is supported since PSCI 0.2, but there is no CONFIG to enable it in U-Boot for now.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
37 lines
735 B
C
37 lines
735 B
C
/*
|
|
* Copyright (C) 2012-2014 Panasonic Corporation
|
|
* Copyright (C) 2015-2016 Socionext Inc.
|
|
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/io.h>
|
|
#include <asm/secure.h>
|
|
|
|
#include "sc-regs.h"
|
|
|
|
/* If PSCI is enabled, this is used for SYSTEM_RESET function */
|
|
#ifdef CONFIG_ARMV7_PSCI
|
|
#define __SECURE __secure
|
|
#else
|
|
#define __SECURE
|
|
#endif
|
|
|
|
void __SECURE reset_cpu(unsigned long ignored)
|
|
{
|
|
u32 tmp;
|
|
|
|
writel(5, SC_IRQTIMSET); /* default value */
|
|
|
|
tmp = readl(SC_SLFRSTSEL);
|
|
tmp &= ~0x3; /* mask [1:0] */
|
|
tmp |= 0x0; /* XRST reboot */
|
|
writel(tmp, SC_SLFRSTSEL);
|
|
|
|
tmp = readl(SC_SLFRSTCTL);
|
|
tmp |= 0x1;
|
|
writel(tmp, SC_SLFRSTCTL);
|
|
}
|