[PATCH v5 1/6] doc: board: toradex: add colibri_imx7.rst

[Bin Meng]

On Wed, Feb 12, 2020 at 11:14 PM Igor Opaniuk <igor.opaniuk at gmail.com> wrote:
>
> From: Igor Opaniuk <igor.opaniuk at toradex.com>
>
> - add initial index for toradex boards reST documentation
> - add initial colibri_imx7.rst doc file which provides all needed
> information for obtaining a workable image ready for flashing
> for both eMMC/NAND versions of Colibri iMX7.
>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
> Signed-off-by: Igor Opaniuk <igor.opaniuk at toradex.com>
> ---
>
>  doc/board/index.rst                |   1 +
>  doc/board/toradex/colibri_imx7.rst | 127 +++++++++++++++++++++++++++++
>  doc/board/toradex/index.rst        |   9 ++
>  3 files changed, 137 insertions(+)
>  create mode 100644 doc/board/toradex/colibri_imx7.rst
>  create mode 100644 doc/board/toradex/index.rst
>
> diff --git a/doc/board/index.rst b/doc/board/index.rst
> index 00e72f57cd..f2f5907b8c 100644
> --- a/doc/board/index.rst
> +++ b/doc/board/index.rst
> @@ -15,4 +15,5 @@ Board-specific doc
>     intel/index
>     renesas/index
>     sifive/index
> +   toradex/index
>     xilinx/index
> diff --git a/doc/board/toradex/colibri_imx7.rst b/doc/board/toradex/colibri_imx7.rst
> new file mode 100644
> index 0000000000..0c7ae082d0
> --- /dev/null
> +++ b/doc/board/toradex/colibri_imx7.rst
> @@ -0,0 +1,127 @@
> +.. SPDX-License-Identifier: GPL-2.0+
> +
> +Colibri iMX7
> +============
> +
> +Quick Start
> +-----------
> +
> +- Build U-Boot
> +- NAND IMX image adjustments before flashing
> +- Flashing manually U-Boot to eMMC
> +- Flashing manually U-Boot to NAND
> +- Using ``update_uboot`` script
> +
> +Build U-Boot
> +------------
> +
> +.. code-block:: bash
> +
> +    $ export CROSS_COMPILE=arm-linux-gnueabi-
> +    $ export ARCH=arm
> +    $ make colibri_imx7_emmc_defconfig # For NAND: colibri_imx7_defconfig
> +    $ make
> +
> +After build succeeds, you will obtain final ``u-boot-dtb.imx`` IMX specific
> +image, ready for flashing (but check next section for additional
> +adjustments).
> +
> +Final IMX program image includes (section ``6.6.7`` from `IMX7DRM
> +<https://www.nxp.com/webapp/Download?colCode=IMX7DRM>`_):
> +
> +* **Image vector table** (IVT) for BootROM
> +* **Boot data** -indicates the program image location, program image size
> +  in bytes, and the plugin flag.
> +* **Device configuration data**
> +* **User image**: U-Boot image (``u-boot-dtb.bin``)
> +
> +
> +IMX image adjustments prior to flashing
> +--------------------------------------------

nits: title underline length should match the title

> +
> +1. U-Boot for both Colibri iMX7 NAND and eMMC versions
> +is built with HABv4 support (`AN4581.pdf
> +<https://www.nxp.com/docs/en/application-note/AN4581.pdf>`_)
> +enabled by default, which requires to generate a proper
> +Command Sequence File (CSF) by srktool from NXP (not included in the
> +U-Boot tree, check additional details in introduction_habv4.txt)
> +and concatenate it to the final ``u-boot-dtb.imx``.
> +
> +2. In case if you don't want to generate a proper ``CSF`` (for any reason),
> +you still need to pad the IMX image so i has the same size as specified in
> +in **Boot Data** section of IMX image.
> +To obtain this value, run:
> +

Will fix the nits when applying.

Tested the doc build, no warnings
Tested-by: Bin Meng <bmeng.cn at gmail.com>