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arch/nrf53: support for APPROTECT, and disable it at default for now

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raiden00pl 2023-03-03 17:47:32 +01:00 committed by Masayuki Ishikawa
parent ad4af9b9c9
commit 49446c8e76
2 changed files with 37 additions and 0 deletions
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4
arch/arm/src/nrf53/Kconfig
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@ -61,6 +61,10 @@ endif # NRF53_NET_BOOT
endif # NRF53_APPCORE
config NRF53_ENABLE_APPROTECT
bool "NRF53 enable APPROTECT"
default n
# Peripheral Selection
config NRF53_UART

33
arch/arm/src/nrf53/nrf53_start.c
View File

@ -37,6 +37,8 @@
#include "nrf53_clockconfig.h"
#include "hardware/nrf53_utils.h"
#include "hardware/nrf53_uicr.h"
#include "hardware/nrf53_ctrlap.h"
#include "nrf53_lowputc.h"
#include "nrf53_start.h"
#include "nrf53_cpunet.h"
@ -71,6 +73,33 @@
void __start(void) noinstrument_function;
#endif
/****************************************************************************
* Name: nrf53_approtect
****************************************************************************/
void nrf53_approtect(void)
{
#ifdef CONFIG_NRF53_ENABLE_APPROTECT
/* Lock APPROTECT.DISABLE */
putreg32(CTRLAP_APPROTECTLOCK_LOCKED, NRF53_CTRLAP_APPROTECTLOCK);
#else
uint32_t regval = 0;
/* Load APPROTECT from UICR */
regval = getreg32(NRF53_UICR_APPROTECT);
putreg32(regval, NRF53_CTRLAP_APPROTECTDISABLE);
# ifdef CONFIG_NRF53_APPCORE
/* Load SECUREAPPROTECT from UICR only for the App core */
regval = getreg32(NRF53_UICR_SECUREAPPROTECT);
putreg32(regval, NRF53_CTRLAP_SECUREREADPROTECTDISABLE);
# endif
#endif
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -99,6 +128,10 @@ void __start(void)
__asm__ __volatile__ ("\tcpsid i\n");
/* Handle APPROTECT configuration */
nrf53_approtect();
#ifdef CONFIG_NRF53_NET_BOOT
/* Boot CPU NET before console init */