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[platform][zynq] add watchdog driver

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-use lib/watchdog to manage the hardware watchdog driver
-set the default timeout to 1 second, pet at 500ms intervals

Change-Id: I04d23313083e4715791e197d4a50f319df9916aa
This commit is contained in:
Travis Geiselbrecht
2015-05-12 17:46:53 -07:00
parent 4af4bb5a83
commit 307628f29b
6 changed files with 170 additions and 12 deletions
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14
app/zynq-common/init.c
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@@ -30,6 +30,7 @@
#include <lib/bootimage.h>
#include <lib/ptable.h>
#include <lib/sysparam.h>
#include <lib/watchdog.h>
#include <dev/spiflash.h>
#include <kernel/vm.h>
#include <kernel/thread.h>
@@ -41,7 +42,7 @@
#include <lib/minip.h>
#endif
static void zybo_common_target_init(uint level)
static void zynq_common_target_init(uint level)
{
status_t err;
@@ -199,5 +200,14 @@ static void zybo_common_target_init(uint level)
}
/* init after target_init() */
LK_INIT_HOOK(app_zybo_common, &zybo_common_target_init, LK_INIT_LEVEL_TARGET);
LK_INIT_HOOK(app_zynq_common, &zynq_common_target_init, LK_INIT_LEVEL_TARGET);
/* watchdog setup, as early as possible */
static void zynq_watchdog_init(uint level)
{
/* start the watchdog timer */
watchdog_hw_set_enabled(true);
}
LK_INIT_HOOK(app_zynq_common_watchdog, &zynq_watchdog_init, LK_INIT_LEVEL_KERNEL);