[PATCH 2/2] doc: board: phytec: Add phyCORE-AM62ax

Mon Nov 18 10:41:24 CET 2024

Hi Garrett,

When building the docs, I get

   Warning, treated as error:
   doc/board/phytec/phycore-am62ax.rst:5:Title underline too short.

   Warning, treated as error:
   doc/board/phytec/phycore-am62ax.rst:66:Problem with "start-after" 
option of "include" directive:

Please make sure "make htmldocs" is working.

Am 15.11.24 um 20:50 schrieb Garrett Giordano:
> Add documentation for PHYTEC phyCORE-AM62ax SoM.
> 
> Signed-off-by: Garrett Giordano <ggiordano at phytec.com>

With that fixed,

Reviewed-by: Wadim Egorov <w.egorov at phytec.de>

> ---
>   doc/board/phytec/index.rst          |   1 +
>   doc/board/phytec/phycore-am62ax.rst | 161 ++++++++++++++++++++++++++++
>   doc/board/ti/k3.rst                 |   1 +
>   3 files changed, 163 insertions(+)
>   create mode 100644 doc/board/phytec/phycore-am62ax.rst
> 
> diff --git a/doc/board/phytec/index.rst b/doc/board/phytec/index.rst
> index 99848a9e958..697aec30512 100644
> --- a/doc/board/phytec/index.rst
> +++ b/doc/board/phytec/index.rst
> @@ -9,6 +9,7 @@ PHYTEC
>      imx8mm-phygate-tauri-l
>      imx93-phyboard-segin
>      phycore-am62x
> +   phycore-am62ax
>      phycore-am64x
>      phycore-imx8mm
>      phycore-imx8mp
> diff --git a/doc/board/phytec/phycore-am62ax.rst b/doc/board/phytec/phycore-am62ax.rst
> new file mode 100644
> index 00000000000..baa26b5a7ce
> --- /dev/null
> +++ b/doc/board/phytec/phycore-am62ax.rst
> @@ -0,0 +1,161 @@
> +.. SPDX-License-Identifier: GPL-2.0+
> +.. sectionauthor:: Garrett Giordano <ggiordano at phytec.com>
> +
> +phyCORE-AM62Ax
> +=============
> +
> +The `phyCORE-AM62Ax <https://www.phytec.com/product/phycore-am62a>`_ is a
> +SoM (System on Module) featuring TI's AM62Ax SoC. It can be used in combination
> +with different carrier boards. This module can come with different sizes and
> +models for DDR, eMMC, SPI NOR Flash and various SoCs from the AM62Ax family.
> +
> +A development Kit, called `phyBOARD-Lyra <https://www.phytec.com/product/phyboard-am62x>`_
> +is used as a carrier board reference design around the AM62Ax SoM.
> +
> +Quickstart
> +----------
> +
> +* Download sources and TI firmware blobs
> +* Build Trusted Firmware-A
> +* Build OP-TEE
> +* Build U-Boot for the R5
> +* Build U-Boot for the A53
> +* Create bootable uSD Card
> +* Boot
> +
> +Sources
> +-------
> +
> +.. include::  ../ti/k3.rst
> +    :start-after: .. k3_rst_include_start_boot_sources
> +    :end-before: .. k3_rst_include_end_boot_sources
> +
> +.. include::  ../ti/k3.rst
> +    :start-after: .. k3_rst_include_start_boot_firmwares
> +    :end-before: .. k3_rst_include_end_tifsstub
> +
> +Build procedure
> +---------------
> +
> +Setup the environment variables:
> +
> +.. include::  ../ti/k3.rst
> +    :start-after: .. k3_rst_include_start_common_env_vars_desc
> +    :end-before: .. k3_rst_include_end_common_env_vars_desc
> +
> +.. include::  ../ti/k3.rst
> +    :start-after: .. k3_rst_include_start_board_env_vars_desc
> +    :end-before: .. k3_rst_include_end_board_env_vars_desc
> +
> +Set the variables corresponding to this platform:
> +
> +.. include::  ../ti/k3.rst
> +    :start-after: .. k3_rst_include_start_common_env_vars_defn
> +    :end-before: .. k3_rst_include_end_common_env_vars_defn
> +.. code-block:: bash
> +
> + $ export UBOOT_CFG_CORTEXR=phycore_am62ax_r5_defconfig
> + $ export UBOOT_CFG_CORTEXA=phycore_am62ax_a53_defconfig
> + $ export TFA_BOARD=lite
> + $ # we dont use any extra TFA parameters
> + $ unset TFA_EXTRA_ARGS
> + $ export OPTEE_PLATFORM=k3-am62ax
> + $ # we dont use any extra OPTEE parameters
> + $ unset OPTEE_EXTRA_ARGS
> +
> +.. include::  ../ti/am62ax_sk.rst
> +    :start-after: .. am62ax_evm_rst_include_start_build_steps
> +    :end-before: .. am62ax_evm_rst_include_end_build_steps
> +
> +uSD Card creation
> +-----------------
> +
> +Use fdisk to partition the uSD card. The layout should look similar to:
> +
> +.. code-block:: bash
> +
> + $ sudo fdisk -l /dev/mmcblk0
> + Disk /dev/mmcblk0: 15 GB, 15913189376 bytes, 31080448 sectors
> + 242816 cylinders, 4 heads, 32 sectors/track
> + Units: sectors of 1 * 512 = 512 bytes
> +
> + Device       Boot StartCHS    EndCHS        StartLBA     EndLBA    Sectors  Size Id Type
> + /dev/mmcblk0p1 *  128,0,1     1023,3,32        16384     278527     262144  128M  c Win95 FAT32 (LBA)
> + /dev/mmcblk0p2    1023,3,32   1023,3,32       278528    1693883    1415356  691M 83 Linux
> +
> +
> +Once partitioned, the boot partition has to be formatted with a FAT filesystem.
> +Assuming the uSD card is `/dev/mmcblk0`:
> +
> +.. code-block:: bash
> +
> + $ mkfs.vfat /dev/mmcblk0p1
> +
> +To boot from a micro SD card on a HSFS device simply copy the following
> +artifacts to the FAT partition:
> +
> +* tiboot3.bin from R5 build
> +* tispl.bin from Cortex-A build
> +* u-boot.img from Cortex-A build
> +
> +Boot
> +----
> +
> +Put the uSD card in the slot on the board and apply power. Check the serial
> +console for output.
> +
> +UART based boot
> +---------------
> +
> +To boot the board via UART, set the switches to UART mode and connect to the
> +micro USB port labeled as "Debug UART". After power-on the build artifacts
> +needs to be uploaded one by one with a tool like sz.
> +
> +Example bash script sequence for running on a Linux host PC feeding all boot
> +artifacts needed to the device. Assuming the host uses /dev/ttyUSB0 as
> +the main domain serial port:
> +
> +.. prompt:: bash $
> +
> +  stty -F /dev/ttyUSB0 115200
> +  sb --xmodem tiboot3.bin > /dev/ttyUSB0 < /dev/ttyUSB0
> +  sb --ymodem tispl.bin > /dev/ttyUSB0 < /dev/ttyUSB0
> +  sb --ymodem u-boot.img > /dev/ttyUSB0 < /dev/ttyUSB0
> +
> +Boot Modes
> +----------
> +
> +The phyCORE-AM62x development kit supports booting from many different
> +interfaces. By default, the development kit is set to boot from the micro-SD
> +card. To change the boot device, DIP switches S5 and S6 can be used.
> +Boot switches should be changed with power off.
> +
> +.. list-table:: Boot Modes
> +   :widths: 16 16 16
> +   :header-rows: 1
> +
> +   * - Switch Label
> +     - SW5: 12345678
> +     - SW6: 12345678
> +
> +   * - uSD
> +     - 11000010
> +     - 01000000
> +
> +   * - eMMC
> +     - 11010010
> +     - 00000000
> +
> +   * - OSPI
> +     - 11010000
> +     - 10000000
> +
> +   * - UART
> +     - 11011100
> +     - 00000000
> +
> +Further Information
> +-------------------
> +
> +Please see :doc:`../ti/am62ax_sk` chapter for further AM62Ax SoC related documentation
> +and https://docs.phytec.com/projects/yocto-phycore-am62ax/en/latest/ for vendor documentation.
> diff --git a/doc/board/ti/k3.rst b/doc/board/ti/k3.rst
> index 5d01f487622..0deb4d768f9 100644
> --- a/doc/board/ti/k3.rst
> +++ b/doc/board/ti/k3.rst
> @@ -46,6 +46,7 @@ K3 SoC based boards in other sections
>   * :doc:`../beagle/am62x_beagleplay`
>   * :doc:`../beagle/j721e_beagleboneai64`
>   * :doc:`../phytec/phycore-am62x`
> +* :doc:`../phytec/phycore-am62ax`
>   * :doc:`../toradex/verdin-am62`
>   
>   Boot Flow Overview