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arm64: vexpress: Add support for poweroff/restart 

This patch adds the arm_pm_poweroff definition expected by the
vexpress-poweroff.c driver and enables the latter for arm64.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
hifive-unleashed-5.1
Catalin Marinas 2013-02-28 18:14:37 +00:00
parent c4188edc9e
commit aa1e8ec1d2
3 changed files with 8 additions and 5 deletions
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3
arch/arm64/Kconfig
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@ -32,6 +32,8 @@ config ARM64
select OF
select OF_EARLY_FLATTREE
select PERF_USE_VMALLOC
select POWER_RESET
select POWER_SUPPLY
select RTC_LIB
select SPARSE_IRQ
select SYSCTL_EXCEPTION_TRACE
@ -106,6 +108,7 @@ config ARCH_VEXPRESS
bool "ARMv8 software model (Versatile Express)"
select ARCH_REQUIRE_GPIOLIB
select COMMON_CLK_VERSATILE
select POWER_RESET_VEXPRESS
select VEXPRESS_CONFIG
help
This enables support for the ARMv8 software model (Versatile

2
arch/arm64/include/asm/system_misc.h
View File

@ -41,7 +41,7 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr);
extern void __show_regs(struct pt_regs *);
void soft_restart(unsigned long);
extern void (*pm_restart)(const char *cmd);
extern void (*arm_pm_restart)(char str, const char *cmd);
#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)

8
arch/arm64/kernel/process.c
View File

@ -81,8 +81,8 @@ void soft_restart(unsigned long addr)
void (*pm_power_off)(void);
EXPORT_SYMBOL_GPL(pm_power_off);
void (*pm_restart)(const char *cmd);
EXPORT_SYMBOL_GPL(pm_restart);
void (*arm_pm_restart)(char str, const char *cmd);
EXPORT_SYMBOL_GPL(arm_pm_restart);
/*
@ -164,8 +164,8 @@ void machine_restart(char *cmd)
local_fiq_disable();
/* Now call the architecture specific reboot code. */
if (pm_restart)
pm_restart(cmd);
if (arm_pm_restart)
arm_pm_restart('h', cmd);
/*
* Whoops - the architecture was unable to reboot.