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arch/arm/src/imxrt: Fix some early testing bugs. The HPRTC is now functional. However, if the LPSRTC is enabled, then there is a hang during LPSRTC initialization. It appears that there is some problem in providing clocking and initializing the LPSRTC domain.

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This commit is contained in:
Gregory Nutt 2018-06-27 15:27:56 -06:00
parent 5f6293b93d
commit 9038cac4eb
2 changed files with 15 additions and 5 deletions
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18
arch/arm/src/imxrt/imxrt_hprtc.c
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@ -75,6 +75,15 @@ static hprtc_alarm_callback_t g_hprtc_alarmcb;
* Public Data
************************************************************************************/
/* Variable determines the state of the RTC module.
*
* After initialization value is set to 'true' if RTC starts successfully.
* The value can be changed to false also during operation if RTC for
* some reason fails.
*/
volatile bool g_rtc_enabled;
#if !defined(CONFIG_IMXRT_SNVS_LPSRTC) && defined(CONFIG_RTC_DRIVER)
bool g_hprtc_timset; /* True: time has been set since power up */
#endif
@ -234,16 +243,16 @@ time_t up_rtc_time(void)
*
************************************************************************************/
int up_rtc_settime(FAR const struct timespec *tp)
int up_rtc_settime(FAR const struct timespec *ts)
{
uint32_t regval;
DEBUGASSERT(tp != NULL);
DEBUGASSERT(ts != NULL);
/* Disable the HPRTC */
regval = getreg32(IMXRT_SNVS_HPCR);
regval = hcpr & ~SNVS_HPCR_RTCEN;
regval &= ~SNVS_HPCR_RTCEN;
putreg32(regval, IMXRT_SNVS_HPCR);
while ((getreg32(IMXRT_SNVS_HPCR) & SNVS_HPCR_RTCEN) != 0)
@ -333,7 +342,8 @@ int up_rtc_initialize(void)
}
#endif
return ret;
g_rtc_enabled = true;
return OK;
}
/************************************************************************************

2
arch/arm/src/imxrt/imxrt_lpsrtc.c
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@ -150,7 +150,7 @@ int imxrt_lpsrtc_initialize(void)
/* Enable the LPSRTC */
imxrt_lpsrtc_enable();
/* Synchronize HPRTC time with the LPSRTC and enable HPRTC */
imxrt_hprtc_synchronize();