Update to Latest Simplelink SDK, implement prebuild step for drivers…

… generation

third_party/ti_simplelink_sdk/run_sdk_drivers_gen.py

@@ -0,0 +1,19 @@
+# Copyright 2020 Texas Instruments Incorporated
+
+"""A wrapper to run the SDK makefiles for Platform driver generation
+Args:
+1. [TI Simplelink SDK Root]
+2. [Matter repository Root]
+"""
+
+import subprocess
+import sys
+
+SDK_ROOT=sys.argv[1]
+CHIP_ROOT=sys.argv[2]
+
+GCC_ARMCOMPILER_PATH= CHIP_ROOT + "/.environment/cipd/packages/arm/"
+make_command = ["make", "-C" ,SDK_ROOT,"CMAKE=cmake","GCC_ARMCOMPILER=" + GCC_ARMCOMPILER_PATH,"IAR_ARMCOMPILER=","TICLANG_ARMCOMPILER=","GENERATOR=Ninja"]
+
+ret = subprocess.call(make_command)
+sys.exit(ret)

third_party/ti_simplelink_sdk/ti_simplelink_executable.gni

@@ -37,6 +37,13 @@ assert(matter_software_ver_str != "",
 template("ti_simplelink_executable") {
   simplelink_target_name = target_name
 
+  # Run prebuild SDK driver generation
+  if (ti_simplelink_device_family == "cc13x2x7_26x2x7" ||
+        ti_simplelink_device_family == "cc13x4_26x4") {
+    exec_script("${ti_simplelink_sdk_build_root}/run_sdk_drivers_gen.py", [ rebase_path(ti_simplelink_sdk_root), rebase_path(chip_root)], "")
+
+ } 
+
   if (chip_enable_ota_requestor) {
     # Generating the ota binary image
     final_target = "${target_name}.ota"