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soburiandreagilardonidani-clogibixhajimef
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loader: Incorporate loader source codes
Co-authored-by: Andrea Gilardoni <a.gilardoni@arduino.cc> Co-authored-by: Daniele Cloralio <d.cloralio@arduino.cc> Co-authored-by: Gilberto Conti <g.conti@arduino.cc> Co-authored-by: Hajime Fujimoto <hajime2008x@yahoo.co.jp> Co-authored-by: Kurt Eckhardt <kurte@rockisland.com> Co-authored-by: Leonardo Cavagnis <45899760+leonardocavagnis@users.noreply.github.com> Co-authored-by: Leonardo Cavagnis <l.cavagnis@arduino.cc> Co-authored-by: Luca Burelli <l.burelli@arduino.cc> Co-authored-by: Martino Facchin <m.facchin@arduino.cc> Co-authored-by: Mattia Pennasilico <m.pennasilico@arduino.cc> Co-authored-by: Mike S <CyberMerln@gmail.com> Co-authored-by: Per Tillisch <accounts@perglass.com> Co-authored-by: Ruggero-R <r.rossino@ext.arduino.cc> Co-authored-by: Sebastian Romero <s.romero@arduino.cc> Co-authored-by: Shin Taeha <mirinae3145@g.skku.edu> Co-authored-by: Tamas Jozsi <tamas.jozsi@silabs.com> Co-authored-by: iabdalkader <i.abdalkader@gmail.com> Co-authored-by: maidnl <d.aimo@arduino.cc> Co-authored-by: pennam <m.pennasilico@arduino.cc>
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‎loader/CMakeLists.txt‎

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# SPDX-License-Identifier: Apache-2.0
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#set(DTC_OVERLAY_FILE ${BOARD}.overlay)
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cmake_minimum_required(VERSION 3.20.0)
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# get value of NORMALIZED_BOARD_TARGET early
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE} COMPONENTS yaml boards)
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set(DTC_OVERLAY_FILE ${CMAKE_CURRENT_LIST_DIR}/../variants/${NORMALIZED_BOARD_TARGET}/${NORMALIZED_BOARD_TARGET}.overlay)
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set(EXTRA_CONF_FILE ${CMAKE_CURRENT_LIST_DIR}/../variants/${NORMALIZED_BOARD_TARGET}/${NORMALIZED_BOARD_TARGET}.conf)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(app LANGUAGES C CXX)
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add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/blobs)
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# Memory region relocation based on Kconfig
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# Relocate LLEXT heap if region specified
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if(NOT "${CONFIG_LLEXT_HEAP_REGION}" STREQUAL "")
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zephyr_code_relocate(FILES ${ZEPHYR_BASE}/subsys/llext/llext_mem.c
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LOCATION ${CONFIG_LLEXT_HEAP_REGION}_BSS_NOINIT)
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endif()
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# Relocate main stack if region specified
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if(NOT "${CONFIG_MAIN_STACK_REGION}" STREQUAL "")
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zephyr_code_relocate(FILES ${ZEPHYR_BASE}/kernel/init.c
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LOCATION ${CONFIG_MAIN_STACK_REGION}_BSS_NOINIT)
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endif()
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# for USB device stack NEXT
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target_sources_ifdef(CONFIG_USB_DEVICE_STACK_NEXT app PRIVATE
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${CMAKE_CURRENT_LIST_DIR}/../cores/arduino/usb_device_descriptor.c
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)
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FILE(GLOB app_sources *.c)
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target_sources(app PRIVATE ${app_sources})
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target_compile_definitions(app PUBLIC _XOPEN_SOURCE=700)
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target_compile_definitions(app PUBLIC _GNU_SOURCE)
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target_link_libraries(app PUBLIC blobs)

‎loader/Kconfig‎

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#
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# Copyright (c) Arduino s.r.l. and/or its affiliated companies
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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source "Kconfig.zephyr"
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config LLEXT_HEAP_REGION
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string "LLEXT heap memory region"
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depends on CODE_DATA_RELOCATION
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help
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Specify the memory region for LLEXT heap.
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config MAIN_STACK_REGION
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string "Main stack memory region"
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depends on CODE_DATA_RELOCATION
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help
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Specify the memory region for main stack.

‎loader/blobs/4343WA1_bin_qspi.c‎

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/*
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* Copyright (c) Arduino s.r.l. and/or its affiliated companies
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/devicetree.h>
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#include "wiced_resource.h"
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#define QUADSPI_MMAP_BASE DT_REG_ADDR_BY_IDX(DT_NODELABEL(quadspi), 1)
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#define FLASH_CHIP_OFFSET DT_REG_ADDR(DT_NODELABEL(qspi_flash))
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#define AIROC_PART_OFS DT_REG_ADDR(DT_NODELABEL(airoc_firmware))
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#define FW_ADDR (QUADSPI_MMAP_BASE + FLASH_CHIP_OFFSET + AIROC_PART_OFS)
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#define FW_SIZE 421098 /* same as the _bin.c file */
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const resource_hnd_t wifi_firmware_image = {
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RESOURCE_IN_MEMORY,
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FW_SIZE,
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{ .mem = { (const char *) FW_ADDR } }
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};

‎loader/blobs/CMakeLists.txt‎

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# SPDX-License-Identifier: Apache-2.0
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zephyr_interface_library_named(blobs)
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if (CONFIG_BOARD_ARDUINO_PORTENTA_C33)
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set(gen_inc_dir ${ZEPHYR_BINARY_DIR}/misc/generated)
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zephyr_include_directories(${gen_inc_dir})
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set(gen_dir ${gen_inc_dir}/c33_bl_patch)
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generate_inc_file_for_target(
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${ZEPHYR_CURRENT_LIBRARY}
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${CMAKE_CURRENT_SOURCE_DIR}/c33_bl.bin
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${gen_dir}/c33_bl.bin.inc
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)
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endif()
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if(CONFIG_AIROC_WIFI_CUSTOM)
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zephyr_include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../../zephyr/blobs/airoc-firmware) # for wifi_nvram_image.h
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zephyr_library_sources(${CMAKE_CURRENT_SOURCE_DIR}/../../zephyr/blobs/airoc-firmware/4343WA1_clm_blob.c)
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zephyr_library_sources(${CMAKE_CURRENT_SOURCE_DIR}/../../zephyr/blobs/airoc-firmware/4343WA1_bin_qspi.c) # use _bin.c for a static build
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endif()

‎loader/blobs/c33_bl.bin‎

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‎loader/blobs/c33_bl.md‎

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## Zephyr-specific Portenta C33 bootloader
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The `c33_bl.bin` file is the Zephyr-specific Portenta C33 bootloader. It is a
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binary file that can be flashed to the Portenta C33 to enable it to boot Zephyr
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applications.
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Compared to the default C33 bootloader, the Zephyr-specific bootloader supports
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an additional `alt` section for the sketch to be loaded.
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### Sources and compilation instructions
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The source code for the Zephyr-specific C33 bootloader can be found in the
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[`arduino-renesas-bootloader` repository](https://github.com/arduino/arduino-renesas-bootloader/tree/zephyr_alt/)
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on GitHub. The Zephyr-specific bootloader uses the `zephyr_alt` branch.
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This binary can be regenerated with the following commands:
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```bash
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git clone https://github.com/arduino/arduino-renesas-bootloader
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git clone https://github.com/hathach/tinyusb
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cd tinyusb
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patch -p1 < ../arduino-renesas-bootloader/0001-fix-arduino-bootloaders.patch
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python tools/get_deps.py ra
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cd ..
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cd arduino-renesas-bootloader
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git checkout zephyr_alt
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TINYUSB_ROOT=$PWD/../tinyusb make -f Makefile.c33
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```
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### License
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The Zephyr-specific Portenta C33 bootloader is licensed under the MIT license.

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