boards: imx8mn_evk: add JLink runner for A53 Core
Use JLink runner for flash and debug on A53 Core. Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
This commit is contained in:
Jiafei Pan
Benjamin Cabé
parent
55401d8956
commit
a426ed7898
2 changed files with 83 additions and 23 deletions
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@ -1 +1,10 @@
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#
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# Copyright 2025 NXP
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#
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# SPDX-License-Identifier: Apache-2.0
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if(CONFIG_SOC_MIMX8MN6_A53)
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board_runner_args(jlink "--device=MIMX8MN6_A53_0" "--no-reset" "--flash-sram")
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include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
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endif()
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@ -62,28 +62,88 @@ Programming and Debugging
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.. zephyr:board-supported-runners::
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There are multiple methods to program and debug Zephyr on the A53 core:
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Option 1. Boot Zephyr by Using JLink Runner
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===========================================
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The default runner for the board is JLink, connect the EVK board's JTAG connector to
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the host computer using a J-Link debugger, power up the board and stop the board at
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U-Boot command line.
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Then use "west flash" or "west debug" command to load the zephyr.bin
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image from the host computer and start the Zephyr application on A53 core0.
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Flash and Run
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-------------
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Here is an example for the :zephyr:code-sample:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:host-os: unix
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:board: imx8mn_evk/mimx8mn6/a53
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:goals: flash
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Then the following log could be found on UART4 console:
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.. code-block:: console
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*** Booting Zephyr OS build v4.1.0-3063-g38519ca2c028 ***
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Hello World! imx8mn_evk/mimx8mn6/a53
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Debug
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-----
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Here is an example for the :zephyr:code-sample:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:host-os: unix
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:board: imx8mn_evk/mimx8mn6/a53
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:goals: debug
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Option 2. Boot Zephyr by Using U-Boot Command
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=============================================
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U-Boot "cpu" command is used to load and kick Zephyr to Cortex-A secondary Core, Currently
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it has been supported in latest U-Boot version by `patch serials`_.
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.. _patch serials:
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https://patchwork.ozlabs.org/project/uboot/list/?series=417536&archive=both&state=*
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Copy the compiled ``zephyr.bin`` to the first FAT partition of the SD card and
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plug the SD card into the board. Power it up and stop the u-boot execution at
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prompt.
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Step 1: Download Zephyr Image into DDR Memory
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---------------------------------------------
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Use U-Boot to load and kick zephyr.bin to Cortex-A53 Core0:
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Firstly need to download Zephyr binary image into DDR memory, it can use tftp:
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.. code-block:: console
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fatload mmc 1:1 0x93c00000 zephyr.bin; dcache flush; icache flush; go 0x93c00000
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tftp 0x93c00000 zephyr.bin
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Or kick zephyr.bin to the other Cortex-A53 Core, for example Core2:
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Or copy the Zephyr image ``zephyr.bin`` SD card and plug the card into the board, for example
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if copy to the FAT partition of the SD card, use the following U-Boot command to load the image
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into DDR memory (assuming the SD card is dev 1, fat partition ID is 1, they could be changed
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based on actual setup):
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.. code-block:: console
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fatload mmc 1:1 0x93c00000 zephyr.bin; dcache flush; icache flush; cpu 2 release 0x93c00000
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fatload mmc 1:1 0x93c00000 zephyr.bin;
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Step 2: Boot Zephyr
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-------------------
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Then use the following command to boot Zephyr on the core0:
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.. code-block:: console
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dcache off; icache flush; go 0x93c00000;
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Or use "cpu" command to boot from secondary Core, for example Core1:
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.. code-block:: console
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dcache flush; icache flush; cpu 1 release 0x93c00000
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Use this configuration to run basic Zephyr applications and kernel tests,
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for example, with the :zephyr:code-sample:`synchronization` sample:
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@ -92,28 +152,19 @@ for example, with the :zephyr:code-sample:`synchronization` sample:
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:zephyr-app: samples/synchronization
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:host-os: unix
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:board: imx8mn_evk/mimx8mn6/a53
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:goals: run
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:goals: build
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This will build an image with the synchronization sample app, boot it and
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display the following ram console output:
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.. code-block:: console
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*** Booting Zephyr OS build zephyr-v3.1.0-3575-g44dd713bd883 ***
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thread_a: Hello World from cpu 0 on mimx8mn_evk_a53!
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thread_b: Hello World from cpu 0 on mimx8mn_evk_a53!
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thread_a: Hello World from cpu 0 on mimx8mn_evk_a53!
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thread_b: Hello World from cpu 0 on mimx8mn_evk_a53!
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thread_a: Hello World from cpu 0 on mimx8mn_evk_a53!
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Use Jailhouse hypervisor, after root cell linux is up:
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.. code-block:: console
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#jailhouse enable imx8mn.cell
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#jailhouse cell create imx8mn-zephyr.cell
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#jailhouse cell load 1 zephyr.bin -a 0x93c00000
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#jailhouse cell start 1
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*** Booting Zephyr OS build v4.1.0-3063-g38519ca2c028 ***
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thread_a: Hello World from cpu 0 on mimx8mn_evk!
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thread_b: Hello World from cpu 0 on mimx8mn_evk!
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thread_a: Hello World from cpu 0 on mimx8mn_evk!
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thread_b: Hello World from cpu 0 on mimx8mn_evk!
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thread_a: Hello World from cpu 0 on mimx8mn_evk!
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.. include:: ../../common/board-footer.rst
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:start-after: nxp-board-footer
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