76 строки
1.8 KiB
C
76 строки
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright 2011 Calxeda, Inc.
|
|
*/
|
|
#ifndef _MACH_HIGHBANK__SYSREGS_H_
|
|
#define _MACH_HIGHBANK__SYSREGS_H_
|
|
|
|
#include <linux/io.h>
|
|
#include <linux/smp.h>
|
|
#include <asm/smp_plat.h>
|
|
#include <asm/smp_scu.h>
|
|
#include "core.h"
|
|
|
|
extern void __iomem *sregs_base;
|
|
|
|
#define HB_SREG_A9_PWR_REQ 0xf00
|
|
#define HB_SREG_A9_BOOT_STAT 0xf04
|
|
#define HB_SREG_A9_BOOT_DATA 0xf08
|
|
|
|
#define HB_PWR_SUSPEND 0
|
|
#define HB_PWR_SOFT_RESET 1
|
|
#define HB_PWR_HARD_RESET 2
|
|
#define HB_PWR_SHUTDOWN 3
|
|
|
|
#define SREG_CPU_PWR_CTRL(c) (0x200 + ((c) * 4))
|
|
|
|
static inline void highbank_set_core_pwr(void)
|
|
{
|
|
int cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(smp_processor_id()), 0);
|
|
if (scu_base_addr)
|
|
scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
|
|
else
|
|
writel_relaxed(1, sregs_base + SREG_CPU_PWR_CTRL(cpu));
|
|
}
|
|
|
|
static inline void highbank_clear_core_pwr(void)
|
|
{
|
|
int cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(smp_processor_id()), 0);
|
|
if (scu_base_addr)
|
|
scu_power_mode(scu_base_addr, SCU_PM_NORMAL);
|
|
else
|
|
writel_relaxed(0, sregs_base + SREG_CPU_PWR_CTRL(cpu));
|
|
}
|
|
|
|
static inline void highbank_set_pwr_suspend(void)
|
|
{
|
|
writel(HB_PWR_SUSPEND, sregs_base + HB_SREG_A9_PWR_REQ);
|
|
highbank_set_core_pwr();
|
|
}
|
|
|
|
static inline void highbank_set_pwr_shutdown(void)
|
|
{
|
|
writel(HB_PWR_SHUTDOWN, sregs_base + HB_SREG_A9_PWR_REQ);
|
|
highbank_set_core_pwr();
|
|
}
|
|
|
|
static inline void highbank_set_pwr_soft_reset(void)
|
|
{
|
|
writel(HB_PWR_SOFT_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
|
|
highbank_set_core_pwr();
|
|
}
|
|
|
|
static inline void highbank_set_pwr_hard_reset(void)
|
|
{
|
|
writel(HB_PWR_HARD_RESET, sregs_base + HB_SREG_A9_PWR_REQ);
|
|
highbank_set_core_pwr();
|
|
}
|
|
|
|
static inline void highbank_clear_pwr_request(void)
|
|
{
|
|
writel(~0UL, sregs_base + HB_SREG_A9_PWR_REQ);
|
|
highbank_clear_core_pwr();
|
|
}
|
|
|
|
#endif
|