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[ARM] 4903/1: [AT91] SAM9/CAP9 system shutdown

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Enable system shutdown/power-off on AT91SAM9 and AT91CAP9 based boards.
This does not require power-management to be enabled, and the
pm_power_off method can be overridden in board-specific files if
necessary.

Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Andrew Victor 2008-04-02 21:36:06 +01:00 committed by Russell King
parent b78eabde89
commit 3ef2fb4267
5 changed files with 41 additions and 0 deletions
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9
arch/arm/mach-at91/at91cap9.c
View file

@ -13,12 +13,14 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/at91cap9.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_shdwc.h>
#include "generic.h"
#include "clock.h"
@ -288,6 +290,12 @@ static void at91cap9_reset(void)
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91cap9_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91CAP9 processor initialization
* -------------------------------------------------------------------- */
@ -298,6 +306,7 @@ void __init at91cap9_initialize(unsigned long main_clock)
iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
at91_arch_reset = at91cap9_reset;
pm_power_off = at91cap9_poweroff;
at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
/* Init clock subsystem */

8
arch/arm/mach-at91/at91sam9260.c
View file

@ -11,6 +11,7 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@ -18,6 +19,7 @@
#include <asm/arch/at91sam9260.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_shdwc.h>
#include "generic.h"
#include "clock.h"
@ -267,6 +269,11 @@ static void at91sam9260_reset(void)
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91sam9260_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9260 processor initialization
@ -304,6 +311,7 @@ void __init at91sam9260_initialize(unsigned long main_clock)
iotable_init(at91sam9260_sram_desc, ARRAY_SIZE(at91sam9260_sram_desc));
at91_arch_reset = at91sam9260_reset;
pm_power_off = at91sam9260_poweroff;
at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
| (1 << AT91SAM9260_ID_IRQ2);

8
arch/arm/mach-at91/at91sam9261.c
View file

@ -11,12 +11,14 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/at91sam9261.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_shdwc.h>
#include "generic.h"
#include "clock.h"
@ -245,6 +247,11 @@ static void at91sam9261_reset(void)
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91sam9261_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9261 processor initialization
@ -256,6 +263,7 @@ void __init at91sam9261_initialize(unsigned long main_clock)
iotable_init(at91sam9261_io_desc, ARRAY_SIZE(at91sam9261_io_desc));
at91_arch_reset = at91sam9261_reset;
pm_power_off = at91sam9261_poweroff;
at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
| (1 << AT91SAM9261_ID_IRQ2);

8
arch/arm/mach-at91/at91sam9263.c
View file

@ -11,12 +11,14 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/at91sam9263.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_shdwc.h>
#include "generic.h"
#include "clock.h"
@ -271,6 +273,11 @@ static void at91sam9263_reset(void)
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91sam9263_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9263 processor initialization
@ -282,6 +289,7 @@ void __init at91sam9263_initialize(unsigned long main_clock)
iotable_init(at91sam9263_io_desc, ARRAY_SIZE(at91sam9263_io_desc));
at91_arch_reset = at91sam9263_reset;
pm_power_off = at91sam9263_poweroff;
at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
/* Init clock subsystem */

8
arch/arm/mach-at91/at91sam9rl.c
View file

@ -10,6 +10,7 @@
*/
#include <linux/module.h>
#include <linux/pm.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@ -17,6 +18,7 @@
#include <asm/arch/at91sam9rl.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_shdwc.h>
#include "generic.h"
#include "clock.h"
@ -244,6 +246,11 @@ static void at91sam9rl_reset(void)
at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
}
static void at91sam9rl_poweroff(void)
{
at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
}
/* --------------------------------------------------------------------
* AT91SAM9RL processor initialization
@ -274,6 +281,7 @@ void __init at91sam9rl_initialize(unsigned long main_clock)
iotable_init(at91sam9rl_sram_desc, ARRAY_SIZE(at91sam9rl_sram_desc));
at91_arch_reset = at91sam9rl_reset;
pm_power_off = at91sam9rl_poweroff;
at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);
/* Init clock subsystem */