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authorAndrew Victor <linux@maxim.org.za>2008-04-03 00:36:06 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-04-04 12:52:19 +0400
commit3ef2fb426775fc2ae19b70c318dbdf4a0aeeced7 (patch)
treeedf90c662cfd9c4e9106eaef6a71a042200b8f78 /arch/arm/mach-at91/at91sam9260.c
parentb78eabde89f9b19d463a77abe420508c0ef29249 (diff)
downloadlinux-3ef2fb426775fc2ae19b70c318dbdf4a0aeeced7.tar.xz
[ARM] 4903/1: [AT91] SAM9/CAP9 system shutdown
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>
Diffstat (limited to 'arch/arm/mach-at91/at91sam9260.c')
-rw-r--r--arch/arm/mach-at91/at91sam9260.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 18d06612ce8a..ee26550cdc21 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -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);