boards: cyw20829: add custom flashloader with 64k of erase block size

Add custom flashloader (for openocd) with 64k of erase block size.
Default one has 512, which cause MCUbootloader overwrite during flash
primary application.

Signed-off-by: Sreeram Tatapudi <sreeram.praveen@infineon.com>

Author: sreeramIfx

boards/infineon/cyw920829m2evk_02/board.cmake

@@ -2,6 +2,19 @@
 # SPDX-License-Identifier: Apache-2.0
 
 board_runner_args(openocd "--target-handle=TARGET.cm33")
+
+# MCUboot requires a flashloader with 64k erase size, please use 'west blobs fetch hal_infineon' to download it.
+if(CONFIG_BOOTLOADER_MCUBOOT)
+  set(flashloader_blobs_path ${ZEPHYR_HAL_INFINEON_MODULE_DIR}/zephyr/blobs/flashloader/TARGET_CYW920829M2EVK-02)
+
+  if(NOT EXISTS ${flashloader_blobs_path}/CYW208xx_SMIF_64K.FLM)
+    message(WARNING "MCUboot requires a flashloader with 64k erase size, please use 'west blobs fetch hal_infineon' to download it")
+  else()
+    board_runner_args(openocd "--openocd-search=${flashloader_blobs_path}")
+    board_runner_args(openocd "--config=${BOARD_DIR}/support/openocd_CYW208xx_SMIF_64K.cfg")
+  endif()
+endif()
+
 include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
 board_runner_args(jlink "--device=CYW20829_tm")
 include (${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/infineon/cyw920829m2evk_02/support/openocd.cfg

@@ -2,7 +2,6 @@
 # Copyright (c) 2018 Linaro Limited.
 #
 # SPDX-License-Identifier: Apache-2.0
-
 source [find interface/kitprog3.cfg]
 
 transport select swd

boards/infineon/cyw920829m2evk_02/support/openocd_CYW208xx_SMIF_64K.cfg

@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2018 Linaro Limited.
+#
+# SPDX-License-Identifier: Apache-2.0
+set QSPI_FLASHLOADER "CYW208xx_SMIF_64K.FLM"
+
+source [find openocd.cfg]