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cr50: delay sleep for 3 minutes after resuming from sleep or after init

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Disable sleep for the first 3 minutes after initializing cr50 and
disable sleep for 3 minutes after a wakepin interrupt has been received.

BUG=none
BRANCH=none
TEST=manual
	on a development board pull up dioa3 and dioa12 then verify cr50
	does goes to sleep after 3 minutes.

	on gru see sleep is delayed by 3 minutes when the wakeup
	interrupt is called.

	enable deep sleep and check cr50 does not go to sleep for 3
	minutes after resuming.

Change-Id: I28ec3c2f5f86326b926d403ad52ffb4fc108e7ec
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/367880
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
This commit is contained in:
Mary Ruthven
2016-08-10 14:48:42 -07:00
committed by chrome-bot
parent 8e512d9d7d
commit e7bdf36f34
2 changed files with 5 additions and 1 deletions
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2
board/cr50/board.c
View File

@@ -117,7 +117,7 @@ void pmu_wakeup_interrupt(void)
* Delay sleep long enough for a SPI slave transaction to start
* or for the system to be reset.
*/
delay_sleep_by(3 * SECOND);
delay_sleep_by(3 * MINUTE);
if (!gpio_get_level(GPIO_SYS_RST_L_IN))
sys_rst_asserted(GPIO_SYS_RST_L_IN);

4
chip/g/idle.c
View File

@@ -4,6 +4,7 @@
*/
#include "common.h"
#include "timer.h"
#include "console.h"
#include "rdd.h"
#include "registers.h"
@@ -172,6 +173,9 @@ void __idle(void)
GREG32(PMU, PWRDN_SCRATCH17) = idle_action;
}
/* Disable sleep until 3 minutes after init */
delay_sleep_by(3 * MINUTE);
while (1) {
/* Anyone still busy? */