mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-24 03:15:59 +00:00
52e6676ef5
Based on the normalized pattern:
this program is free software you can redistribute it and/or modify it
under the terms of the gnu general public license as published by the
free software foundation version 2 this program is distributed as is
without any warranty of any kind whether express or implied without
even the implied warranty of merchantability or fitness for a
particular purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference.
Reviewed-by: Allison Randal <allison@lohutok.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
// Copyright (C) 2012-2014 Broadcom Corporation
|
|
|
|
#include <linux/clocksource.h>
|
|
#include <linux/of_address.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
|
|
#include "kona_l2_cache.h"
|
|
|
|
#define SECWDOG_OFFSET 0x00000000
|
|
#define SECWDOG_RESERVED_MASK 0xe2000000
|
|
#define SECWDOG_WD_LOAD_FLAG_MASK 0x10000000
|
|
#define SECWDOG_EN_MASK 0x08000000
|
|
#define SECWDOG_SRSTEN_MASK 0x04000000
|
|
#define SECWDOG_CLKS_SHIFT 20
|
|
#define SECWDOG_COUNT_SHIFT 0
|
|
|
|
static void bcm281xx_restart(enum reboot_mode mode, const char *cmd)
|
|
{
|
|
uint32_t val;
|
|
void __iomem *base;
|
|
struct device_node *np_wdog;
|
|
|
|
np_wdog = of_find_compatible_node(NULL, NULL, "brcm,kona-wdt");
|
|
if (!np_wdog) {
|
|
pr_emerg("Couldn't find brcm,kona-wdt\n");
|
|
return;
|
|
}
|
|
base = of_iomap(np_wdog, 0);
|
|
of_node_put(np_wdog);
|
|
if (!base) {
|
|
pr_emerg("Couldn't map brcm,kona-wdt\n");
|
|
return;
|
|
}
|
|
|
|
/* Enable watchdog with short timeout (244us). */
|
|
val = readl(base + SECWDOG_OFFSET);
|
|
val &= SECWDOG_RESERVED_MASK | SECWDOG_WD_LOAD_FLAG_MASK;
|
|
val |= SECWDOG_EN_MASK | SECWDOG_SRSTEN_MASK |
|
|
(0x15 << SECWDOG_CLKS_SHIFT) |
|
|
(0x8 << SECWDOG_COUNT_SHIFT);
|
|
writel(val, base + SECWDOG_OFFSET);
|
|
|
|
/* Wait for reset */
|
|
while (1);
|
|
}
|
|
|
|
static void __init bcm281xx_init(void)
|
|
{
|
|
kona_l2_cache_init();
|
|
}
|
|
|
|
static const char * const bcm281xx_dt_compat[] = {
|
|
"brcm,bcm11351", /* Have to use the first number upstreamed */
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(BCM281XX_DT, "BCM281xx Broadcom Application Processor")
|
|
.init_machine = bcm281xx_init,
|
|
.restart = bcm281xx_restart,
|
|
.dt_compat = bcm281xx_dt_compat,
|
|
MACHINE_END
|