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drivers: src: hwinfo: Report reset cause for lockup_sysresetreq

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Fix  incomplete reset cause to be reported for NXP MIMXRT1062-evkb.

In the event of a reset due to core lockup
or software reset request on a 1062 board,
the current NXP hwinfo driver reports an incomplete
reset cause (only Ipp reset pin).

This is happening because the 1062 uses a combined CPU lockup
and system reset request register bit that should be checked,
whereas the current driver only checks for the existence
of a lockup-only status bit.

This commit adds a check on the flag
FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ
already present in MIMXRT1062_features.h,
to report such a reset cause should it occur.

Signed-off-by: Casper Egholm Jørgensen <cjo@trackman.com>
This commit is contained in:
Casper Egholm Jørgensen 2023-06-16 14:38:08 +02:00 • committed by Carles Cufí
commit 4beb51c52f
1 changed files with 10 additions and 0 deletions
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10
drivers/hwinfo/hwinfo_mcux_src.c
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@ -37,6 +37,12 @@ int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
flags |= RESET_CPU_LOCKUP; flags |= RESET_CPU_LOCKUP;
} }
#endif #endif
#if (defined(FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) && \
FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ)
if (reason & kSRC_LockupSysResetFlag) {
flags |= RESET_CPU_LOCKUP | RESET_SOFTWARE;
}
#endif
#if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) #if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B)
if (reason & kSRC_CsuResetFlag) { if (reason & kSRC_CsuResetFlag) {
flags |= RESET_SECURITY; flags |= RESET_SECURITY;
@ -115,6 +121,10 @@ int z_impl_hwinfo_get_supported_reset_cause(uint32_t *supported)
#if (defined(FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST) && FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST) #if (defined(FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST) && FSL_FEATURE_SRC_HAS_SCR_LOCKUP_RST)
| RESET_CPU_LOCKUP | RESET_CPU_LOCKUP
#endif #endif
#if (defined(FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ) && \
FSL_FEATURE_SRC_HAS_SRSR_LOCKUP_SYSRESETREQ)
| RESET_CPU_LOCKUP | RESET_SOFTWARE
#endif
#if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) #if (defined(FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B) && FSL_FEATURE_SRC_HAS_SRSR_CSU_RESET_B)
| RESET_SECURITY | RESET_SECURITY
#endif #endif