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Disable interrupt during FTFC operation

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This commit is contained in:
Sammy Tran
2024-03-05 14:46:48 -05:00
committed by Alan Carvalho de Assis
parent 89bd6ab74a
commit b4b7710c63
1 changed files with 9 additions and 0 deletions
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arch/arm/src/s32k1xx/s32k1xx_progmem.c
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@@ -77,6 +77,13 @@ static uint32_t execute_ftfc_command(void)
uint8_t regval; uint8_t regval;
uint32_t retval; uint32_t retval;
/* AN12003: only one FlexNVM operation can be executed at a time.
* Disable ISR during this time so an ISR doesn't cause a hardfault
* from a simultaneous read.
*/
irqstate_t flags = enter_critical_section();
/* Clear CCIF to launch command */ /* Clear CCIF to launch command */
regval = getreg8(S32K1XX_FTFC_FSTAT); regval = getreg8(S32K1XX_FTFC_FSTAT);
@@ -87,6 +94,8 @@ static uint32_t execute_ftfc_command(void)
retval = getreg8(S32K1XX_FTFC_FSTAT); retval = getreg8(S32K1XX_FTFC_FSTAT);
leave_critical_section(flags);
if (retval & (FTTC_FSTAT_MGSTAT0 | FTTC_FSTAT_FPVIOL | if (retval & (FTTC_FSTAT_MGSTAT0 | FTTC_FSTAT_FPVIOL |
FTTC_FSTAT_ACCERR | FTTC_FSTAT_RDCOLERR)) FTTC_FSTAT_ACCERR | FTTC_FSTAT_RDCOLERR))
{ {