[Silabs] Fix the secure soc reset issue

examples/platform/silabs/Rpc.cpp

@@ -117,7 +117,7 @@ class Efr32Device final : public Device
     osTimer_t mRebootTimerBuffer;
     osTimerAttr_t mRebootTimerAttr = { .name = "Reboot", .cb_mem = &mRebootTimerBuffer, .cb_size = osTimerCbSize };
 
-    static void RebootHandler(void * timerCbArg) { NVIC_SystemReset(); }
+    static void RebootHandler(void * timerCbArg) { Silabs::GetPlatform().SoftwareReset(); }
 };
 #endif // defined(PW_RPC_DEVICE_SERVICE) && PW_RPC_DEVICE_SERVICE
 
@@ -225,6 +225,5 @@ void Init()
     // Start App task.
     sRpcTaskHandle = osThreadNew(RunRpcService, nullptr, &kRpcTaskAttr);
 }
-
 } // namespace rpc
 } // namespace chip

src/platform/silabs/ConfigurationManagerImpl.cpp

@@ -309,7 +309,7 @@ void ConfigurationManagerImpl::DoFactoryReset(intptr_t arg)
     // Block the task for 500 ms before the reset occurs to allow RPC response to be sent
     osDelay(pdMS_TO_TICKS(500));
 
-    NVIC_SystemReset();
+    Silabs::GetPlatform().SoftwareReset();
 }
 
 #ifdef SL_WIFI

src/platform/silabs/SiWx917/OTAImageProcessorImpl.cpp

@@ -20,6 +20,7 @@
 #include <app/clusters/ota-requestor/OTARequestorInterface.h>
 #include <platform/silabs/OTAImageProcessorImpl.h>
 #include <platform/silabs/SilabsConfig.h>
+#include <platform/silabs/platformAbstraction/SilabsPlatform.h>
 #include <platform/silabs/wifi/WifiInterface.h>
 
 #if CHIP_CONFIG_ENABLE_ICD_SERVER
@@ -42,7 +43,6 @@ extern "C" {
 
 uint8_t flag = RPS_HEADER;
 static chip::OTAImageProcessorImpl gImageProcessor;
-
 namespace chip {
 
 // Define static memebers
@@ -229,7 +229,7 @@ void OTAImageProcessorImpl::HandleApply(intptr_t context)
         // send system reset request to reset the MCU and upgrade the m4 image
         ChipLogProgress(SoftwareUpdate, "SoC Soft Reset initiated!");
         // Reboots the device
-        sl_si91x_soc_nvic_reset();
+        DeviceLayer::Silabs::GetPlatform().SoftwareReset();
     }
 }
 

src/platform/silabs/platformAbstraction/GsdkSpam.cpp

@@ -124,6 +124,11 @@ CHIP_ERROR SilabsPlatform::Init(void)
     return CHIP_NO_ERROR;
 }
 
+void SilabsPlatform::SoftwareReset()
+{
+    NVIC_SystemReset();
+}
+
 CHIP_ERROR SilabsPlatform::FlashInit()
 {
 #if defined(SL_TRUSTZONE_NONSECURE)

src/platform/silabs/platformAbstraction/SilabsPlatform.h

@@ -61,6 +61,8 @@ class SilabsPlatform : virtual public SilabsPlatformAbstractionBase
     CHIP_ERROR FlashErasePage(uint32_t addr) override;
     CHIP_ERROR FlashWritePage(uint32_t addr, const uint8_t * data, size_t size) override;
 
+    void SoftwareReset(void) override;
+
 private:
     friend SilabsPlatform & GetPlatform(void);
 

src/platform/silabs/platformAbstraction/SilabsPlatformBase.h

@@ -56,6 +56,9 @@ class SilabsPlatformAbstractionBase
     virtual CHIP_ERROR FlashErasePage(uint32_t addr) { return CHIP_ERROR_NOT_IMPLEMENTED; }
     virtual CHIP_ERROR FlashWritePage(uint32_t addr, const uint8_t * data, size_t size) { return CHIP_ERROR_NOT_IMPLEMENTED; }
 
+    // soft reset
+    virtual void SoftwareReset(void) {}
+
     // BLE Specific Method
 
 protected:

src/platform/silabs/platformAbstraction/WiseMcuSpam.cpp

@@ -38,6 +38,8 @@ extern "C" {
 #endif // SL_SI91X_BOARD_INIT
 #include "sl_event_handler.h"
 
+#include "sl_si91x_hal_soc_soft_reset.h"
+
 #ifdef SL_CATALOG_SIMPLE_BUTTON_PRESENT
 #include "sl_si91x_button.h"
 #include "sl_si91x_button_pin_config.h"
@@ -208,6 +210,11 @@ uint8_t SilabsPlatform::GetButtonState(uint8_t button)
 }
 #endif // SL_CATALOG_SIMPLE_BUTTON_PRESENT
 
+void SilabsPlatform::SoftwareReset()
+{
+    sl_si91x_soc_nvic_reset();
+}
+
 CHIP_ERROR SilabsPlatform::FlashInit()
 {
     return CHIP_NO_ERROR;