Re: ANNOUNCE: Tegra application notes, (and tegrarcm & cbootimage)

[Mark Zhang <nvmarkzhang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On 12/08/2012 09:08 AM, Stephen Warren wrote:
> I'd like to announce or remind people of some documentation and tools we
> have for Tegra development.
> 
> First up, we've just posted a few simple application notes describing
> some details of how Tegra boots, the BCT format, etc. We intend to add
> more articles to the series as time permits. Do let us know if there are
> any burning topics you'd like covered, and I'll see if we can oblige.
> You can find them at:
> 
> ftp://download.nvidia.com/tegra-public-appnotes/index.html
> 
> Second, a reminder of the tegrarcm tool (which has been published for a
> while now). It interacts with the Tegra boot ROM of development-mode
> devices to download code into SDRAM and executes it. This can be useful
> for bootloader development, low-level "bricked" system recovery, etc.
> It's available at:
> 
> http://nv-tegra.nvidia.com/gitweb/?p=tools/tegrarcm.git;a=summary
> 
> Third, we have just taken ownership of publishing a tool named
> cbootimage, which can compile a text representations of a BCT into a
> binary, or combine a binary and a bootloader into a flashable image.
> This tool was previous available via the ChromiumOS project. It's
> available at:
> 
> http://nv-tegra.nvidia.com/gitweb/?p=tools/cbootimage.git;a=summary
> 
> The latter two tools, used together with an upstream U-Boot, can be used
> to create a completely Open-Source flashing system for Tegra devices;
> compile U-Boot, create a flashable image using cbootimage, execute
> U-Boot on the system using tegrarcm, get the flashable image onto the
> system using an SD card or TFTP over the network, and use U-Boot to
> write it to flash.
> 
> Finally, we hope to publish cbootimage configuration files for NVIDIA's
> Tegra reference boards in the very near future. That will complete the
> picture above.
> 

Yep. It's better to provide an example of "text representation BCT" as
well so that we can use "bct_dump" to generate a binary BCT file.

> Have fun!
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