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ARM: ux500: add restart support via prcmu 

Add necessary code to restart ux500 based machines using
prcmu_system_reset().

Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Fabio Baltieri 2013-06-14 15:22:40 +02:00 committed by Linus Walleij
parent d4e4ab86bc
commit bd93ec5053
4 changed files with 16 additions and 2 deletions
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5
arch/arm/mach-ux500/board-mop500.c
View File

@ -42,7 +42,6 @@
#include <linux/platform_data/dma-ste-dma40.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "setup.h"
#include "devices.h"
@ -686,6 +685,7 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
.init_time = ux500_timer_init,
.init_machine = mop500_init_machine,
.init_late = ux500_init_late,
.restart = ux500_restart,
MACHINE_END
MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
@ -695,6 +695,7 @@ MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
.init_time = ux500_timer_init,
.init_machine = mop500_init_machine,
.init_late = ux500_init_late,
.restart = ux500_restart,
MACHINE_END
MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
@ -705,6 +706,7 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
.init_time = ux500_timer_init,
.init_machine = hrefv60_init_machine,
.init_late = ux500_init_late,
.restart = ux500_restart,
MACHINE_END
MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
@ -716,4 +718,5 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
.init_time = ux500_timer_init,
.init_machine = snowball_init_machine,
.init_late = NULL,
.restart = ux500_restart,
MACHINE_END

2
arch/arm/mach-ux500/cpu-db8500.c
View File

@ -26,7 +26,6 @@
#include <asm/pmu.h>
#include <asm/mach/map.h>
#include <asm/mach/arch.h>
#include "setup.h"
#include "devices.h"
@ -325,6 +324,7 @@ DT_MACHINE_START(U8500_DT, "ST-Ericsson Ux5x0 platform (Device Tree Support)")
.init_machine = u8500_init_machine,
.init_late = NULL,
.dt_compat = stericsson_dt_platform_compat,
.restart = ux500_restart,
MACHINE_END
#endif

8
arch/arm/mach-ux500/cpu.c
View File

@ -31,6 +31,14 @@
#include "db8500-regs.h"
#include "id.h"
void ux500_restart(enum reboot_mode mode, const char *cmd)
{
local_irq_disable();
local_fiq_disable();
prcmu_system_reset(0);
}
/*
* FIXME: Should we set up the GPIO domain here?
*

3
arch/arm/mach-ux500/setup.h
View File

@ -11,10 +11,13 @@
#ifndef __ASM_ARCH_SETUP_H
#define __ASM_ARCH_SETUP_H
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <linux/init.h>
#include <linux/mfd/abx500/ab8500.h>
void ux500_restart(enum reboot_mode mode, const char *cmd);
void __init ux500_map_io(void);
extern void __init u8500_map_io(void);