mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 18:28:55 +00:00
37 lines
618 B
C
37 lines
618 B
C
|
/*
|
||
|
|
* (c) 2015 Purna Chandra Mandal <purna.mandal@microchip.com>
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <mach/pic32.h>
|
||
|
|
|
||
|
|
/* SYSKEY */
|
||
|
|
#define UNLOCK_KEY1 0xaa996655
|
||
|
|
#define UNLOCK_KEY2 0x556699aa
|
||
|
|
#define LOCK_KEY 0
|
||
|
|
|
||
|
|
#define RSWRST 0x1250
|
||
|
|
|
||
|
|
void _machine_restart(void)
|
||
|
|
{
|
||
|
|
void __iomem *base;
|
||
|
|
|
||
|
|
base = pic32_get_syscfg_base();
|
||
|
|
|
||
|
|
/* unlock sequence */
|
||
|
|
writel(LOCK_KEY, base + SYSKEY);
|
||
|
|
writel(UNLOCK_KEY1, base + SYSKEY);
|
||
|
|
writel(UNLOCK_KEY2, base + SYSKEY);
|
||
|
|
|
||
|
|
/* soft reset */
|
||
|
|
writel(0x1, base + RSWRST);
|
||
|
|
(void) readl(base + RSWRST);
|
||
|
|
|
||
|
|
while (1)
|
||
|
|
;
|
||
|
|
}
|