[Silabs] Adds fix for hardfault in SiWx917 SoC and generator firmware updates (#36610)

* Update mbedTLS configuration

* Addressing comments

* Replace with use of public APIs

* Updated Support SDK pointer

* Updated Support SDK pointer

* WIP: Wiseconnect 3.4.0 support

* Adds IPMU changes

* Update pointers

* Add fix for LCD

* Cleanup of duplicate entry

* Refactor device attestation key handling in ProvisionStorageFlash.cpp

* Revert changes

---------

Co-authored-by: Andrei Litvin <andy314@gmail.com>

Author: rosahay-silabs

examples/platform/silabs/ldscripts/SiWx917-common.ld

@@ -39,7 +39,8 @@ SECTIONS
 	.text :
 	{
 		KEEP(*(.isr_vector))
-     	KEEP(*(.reset_handler))
+		. = ALIGN(32);
+		KEEP(*(.reset_handler))
 		*(EXCLUDE_FILE(*sl_si91x_bus.c.o *sl_si91x_driver.c.o *sli_si91x_multithreaded.c.o *rsi_hal_mcu_m4_ram.c.o *rsi_hal_mcu_m4_rom.c.o *rsi_deepsleep_soc.c.o *croutine.c.o *event_groups.c.o *list.c.o *queue.c.o *stream_buffer.c.o *tasks.c.o *timers.c.o *cmsis_os2.c.o *freertos_umm_malloc_host.c.o *malloc_buffers.c.o *sl_rsi_utility.c.o *port.c.o *sl_sleeptimer.c.o *sl_sleeptimer_hal_si91x_sysrtc.c.o *rsi_sysrtc.c.o *sl_si91x_low_power_tickless_mode.c.o *heap_*.c.o *sl_core_cortexm.c.o) .text*)
 
     /* .ctors */

examples/platform/silabs/provision/ProvisionStorageFlash.cpp

@@ -649,7 +649,6 @@ CHIP_ERROR Storage::GetDeviceAttestationCSR(uint16_t vid, uint16_t pid, const Ch
 
 CHIP_ERROR Storage::SignWithDeviceAttestationKey(const ByteSpan & message, MutableByteSpan & signature)
 {
-    AttestationKey key;
     uint8_t temp[kDeviceAttestationKeySizeMax] = { 0 };
     size_t size                                = 0;
     CHIP_ERROR err                             = Flash::Get(Parameters::ID::kDacKey, temp, sizeof(temp), size);
@@ -661,8 +660,16 @@ CHIP_ERROR Storage::SignWithDeviceAttestationKey(const ByteSpan & message, Mutab
     }
 #endif // CHIP_DEVICE_CONFIG_ENABLE_EXAMPLE_CREDENTIALS
     ReturnErrorOnFailure(err);
+#if (defined(SLI_SI91X_MCU_INTERFACE) && SLI_SI91X_MCU_INTERFACE)
+    uint8_t key_buffer[kDeviceAttestationKeySizeMax] = { 0 };
+    MutableByteSpan private_key(key_buffer);
+    AttestationKey::Unwrap(temp, size, private_key);
+    return AttestationKey::SignMessageWithKey((const uint8_t *) key_buffer, message, signature);
+#else
+    AttestationKey key;
     ReturnErrorOnFailure(key.Import(temp, size));
     return key.SignMessage(message, signature);
+#endif // SLI_SI91X_MCU_INTERFACE
 }
 
 //

src/platform/silabs/provision/AttestationKey.h

@@ -41,6 +41,11 @@ class AttestationKey
     CHIP_ERROR GenerateCSR(uint16_t vid, uint16_t pid, const CharSpan & cn, MutableCharSpan & csr);
     CHIP_ERROR SignMessage(const ByteSpan & message, MutableByteSpan & out_span);
 
+#if (defined(SLI_SI91X_MCU_INTERFACE) && SLI_SI91X_MCU_INTERFACE)
+    static CHIP_ERROR Unwrap(const uint8_t * asn1, size_t size, MutableByteSpan & private_key);
+    static CHIP_ERROR SignMessageWithKey(const uint8_t * private_key, const ByteSpan & message, MutableByteSpan & out_span);
+#endif // SLI_SI91X_MCU_INTERFACE
+
 protected:
     uint32_t mId = 0;
 };

third_party/silabs/SiWx917_sdk.gni

@@ -55,7 +55,7 @@ template("siwx917_sdk") {
     # Treat these includes as system includes, so warnings in them are not fatal.
     _include_dirs = [
       "${chip_root}",
-      "${chip_root}/examples/platform/silabs/SiWx917/SiWx917",
+      "${chip_root}/examples/platform/silabs/",
       "${efr32_sdk_root}/platform/emdrv/nvm3/config",
       "${efr32_sdk_root}/platform/emdrv/nvm3/inc",
       "${efr32_sdk_root}/platform/emdrv/common/inc",
@@ -79,7 +79,7 @@ template("siwx917_sdk") {
       "${wifi_sdk_root}/components/device/silabs/si91x/wireless/sl_net/inc",
 
       # siwx917_soc component
-      "${wifi_sdk_root}/components/board/silabs/config/brd4338a",
+      "${wifi_sdk_root}/components/board/silabs/config/${silabs_board}",
       "${wifi_sdk_root}/components/board/silabs/inc",
       "${wifi_sdk_root}/components/common/inc",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/core/chip/inc",
@@ -251,6 +251,8 @@ template("siwx917_sdk") {
       "TIMER_ROMDRIVER_PRESENT=1",
       "UDMA_ROMDRIVER_PRESENT=1",
       "PLL_ROMDRIVER_PRESENT=1",
+      "SL_CODE_COMPONENT_FREERTOS_KERNEL=freertos_kernel",
+      "SLI_CODE_CLASSIFICATION_DISABLE=1",
       "SL_MATTER_GN_BUILD=1",
       "SILABS_LOG_OUT_UART=${sl_uart_log_output}",
     ]
@@ -261,7 +263,10 @@ template("siwx917_sdk") {
       defines += [ "SILABS_LOG_ENABLED=0" ]
     }
 
-    defines += [ "LWIP_NETIF_API=1" ]
+    defines += [
+      "LWIP_NETIF_API=1",
+      "SLI_SI91X_LWIP_HOSTED_NETWORK_STACK=1",
+    ]
     if (chip_enable_wifi_ipv4) {
       defines += [
         "LWIP_IPV4=1",
@@ -300,6 +305,7 @@ template("siwx917_sdk") {
 
     if (!disable_lcd) {
       defines += [
+        "SI917_MEMLCD=1",
         "SYSCALLS_WRITE",
         "SPI_MULTI_SLAVE",
         "SL_ULP_TIMER",
@@ -612,7 +618,7 @@ template("siwx917_sdk") {
           "${sdk_support_root}/matter/mbedtls/tinycrypt/src/ecc_dsa.c",
           "${sdk_support_root}/matter/mbedtls/tinycrypt/src/tinycrypt_util.c",
 
-          # Sisdk platform/security
+          # GECKO SDK
           "${efr32_sdk_root}/platform/security/sl_component/sli_psec_osal/src/sli_psec_osal_cmsis_rtos2.c",
         ]
 
@@ -630,9 +636,11 @@ template("siwx917_sdk") {
       # si91x component
       "${efr32_sdk_root}/platform/CMSIS/RTOS2/Source/os_systick.c",
       "${efr32_sdk_root}/platform/common/src/sl_assert.c",
+      "${efr32_sdk_root}/platform/common/src/sl_cmsis_os2_common.c",
       "${efr32_sdk_root}/platform/common/src/sl_core_cortexm.c",
       "${efr32_sdk_root}/platform/common/src/sl_slist.c",
       "${efr32_sdk_root}/platform/common/src/sl_string.c",
+      "${efr32_sdk_root}/platform/common/src/sl_syscalls.c",
       "${efr32_sdk_root}/platform/common/src/sli_cmsis_os2_ext_task_register.c",
       "${efr32_sdk_root}/platform/security/sl_component/sl_mbedtls_support/src/sl_mbedtls.c",
       "${efr32_sdk_root}/util/third_party/freertos/cmsis/Source/cmsis_os2.c",
@@ -692,10 +700,12 @@ template("siwx917_sdk") {
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/peripheral_drivers/src/rsi_udma.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/peripheral_drivers/src/rsi_udma_wrapper.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/peripheral_drivers/src/rsi_usart.c",
+      "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/rom_driver/src/rsi_rom_table_si91x.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_bod.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_ipmu.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_pll.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_power_save.c",
+      "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_rtc.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_temp_sensor.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/systemlevel/src/rsi_ulpss_clk.c",
       "${wifi_sdk_root}/components/device/silabs/si91x/mcu/drivers/unified_api/src/sl_si91x_adc.c",
@@ -750,6 +760,7 @@ template("siwx917_sdk") {
       "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_cpp.cpp",
       "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_dynamic_reservation.c",
       "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_pool.c",
+      "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_pool_common.c",
       "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_region.c",
       "${efr32_sdk_root}/platform/service/memory_manager/src/sl_memory_manager_retarget.c",
       "${efr32_sdk_root}/platform/service/memory_manager/src/sli_memory_manager_common.c",