[U-Boot] [PATCH] warp: Add a README file

[Otavio Salvador]

On Mon, Mar 2, 2015 at 10:20 AM, Fabio Estevam
<fabio.estevam at freescale.com> wrote:
> Provide instructions on how to upgrade U-boot in the eMMC.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>

> ---
>  board/warp/README | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)
>  create mode 100644 board/warp/README
>
> diff --git a/board/warp/README b/board/warp/README
> new file mode 100644
> index 0000000..da77542
> --- /dev/null
> +++ b/board/warp/README
> @@ -0,0 +1,56 @@
> +How to Update U-boot on Warp board
> +----------------------------------
> +
> +Required software on the host PC:
> +
> +- imx_loader: https://github.com/warpboard/imx_usb_loader

I see no reason to link WaRP's fork. The Boundary Devices upstream
code offers a more up to date bases and I think we should give them
the credit for the tool. Mind to change it?

> +- dfu-util: http://dfu-util.sourceforge.net/releases/
> +
> +Build U-boot for Warp:
> +
> +$ make mrproper
> +$ make warp_config
> +$ make
> +
> +This will generate the U-boot binary called u-boot.imx.
> +
> +Put warp board in USB download mode
> +
> +Connect a USB to serial adapter between the host PC and warp
> +
> +Connect a USB cable between the OTG warp port and the host PC
> +
> +Open a terminal program such as minicom
> +
> +Copy u-boot.imx to the imx_usb folder.
> +
> +Load u-boot.imx via USB:
> +
> +$ sudo ./imx_usb

$ sudo ./imx_usb <path to u-boot.imx>

> +
> +Then U-boot should start and its messages will appear in the console program.
> +
> +Use the default environment variables:
> +
> +=> env default -f -a
> +=> save

I think this is not needed as the environment will be rewritten when
the U-Boot is overridden.

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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