mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
ed882c3e72
Fix the following compilation warning: arch/arm/mach-keystone/keystone.c:74:2: warning: initialization from incompatible pointer type [enabled by default] arch/arm/mach-keystone/keystone.c:74:2: warning: (near initialization for ‘__mach_desc_KEYSTONE.restart’) [enabled by default] Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com> Cc: Robin Holt <holt@sgi.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: trivial@kernel.org Signed-off-by: Olof Johansson <olof@lixom.net>
76 lines
1.8 KiB
C
76 lines
1.8 KiB
C
/*
|
|
* Keystone2 based boards and SOC related code.
|
|
*
|
|
* Copyright 2013 Texas Instruments, Inc.
|
|
* Cyril Chemparathy <cyril@ti.com>
|
|
* Santosh Shilimkar <santosh.shillimkar@ti.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*/
|
|
#include <linux/io.h>
|
|
#include <linux/of.h>
|
|
#include <linux/init.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/of_address.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/time.h>
|
|
#include <asm/smp_plat.h>
|
|
|
|
#include "keystone.h"
|
|
|
|
#define PLL_RESET_WRITE_KEY_MASK 0xffff0000
|
|
#define PLL_RESET_WRITE_KEY 0x5a69
|
|
#define PLL_RESET BIT(16)
|
|
|
|
static void __iomem *keystone_rstctrl;
|
|
|
|
static void __init keystone_init(void)
|
|
{
|
|
struct device_node *node;
|
|
|
|
node = of_find_compatible_node(NULL, NULL, "ti,keystone-reset");
|
|
if (WARN_ON(!node))
|
|
pr_warn("ti,keystone-reset node undefined\n");
|
|
|
|
keystone_rstctrl = of_iomap(node, 0);
|
|
if (WARN_ON(!keystone_rstctrl))
|
|
pr_warn("ti,keystone-reset iomap error\n");
|
|
|
|
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
|
|
}
|
|
|
|
static const char *keystone_match[] __initconst = {
|
|
"ti,keystone-evm",
|
|
NULL,
|
|
};
|
|
|
|
void keystone_restart(enum reboot_mode mode, const char *cmd)
|
|
{
|
|
u32 val;
|
|
|
|
BUG_ON(!keystone_rstctrl);
|
|
|
|
/* Enable write access to RSTCTRL */
|
|
val = readl(keystone_rstctrl);
|
|
val &= PLL_RESET_WRITE_KEY_MASK;
|
|
val |= PLL_RESET_WRITE_KEY;
|
|
writel(val, keystone_rstctrl);
|
|
|
|
/* Reset the SOC */
|
|
val = readl(keystone_rstctrl);
|
|
val &= ~PLL_RESET;
|
|
writel(val, keystone_rstctrl);
|
|
}
|
|
|
|
DT_MACHINE_START(KEYSTONE, "Keystone")
|
|
.smp = smp_ops(keystone_smp_ops),
|
|
.init_machine = keystone_init,
|
|
.dt_compat = keystone_match,
|
|
.restart = keystone_restart,
|
|
MACHINE_END
|