On Tue, Apr 15, 2014 at 10:41 AM, Lukasz Majewski l.majewski@samsung.com wrote:
Hi Rob,
From: Sebastian Siewior bigeasy@linutronix.de
This patch contains an implementation of the fastboot protocol on the device side and a little of documentation. The gadget expects the new-style gadget framework. The gadget implements the getvar, reboot, download and reboot commands. What is missing is the flash handling i.e. writting the image to media.
v3 (Rob Herring): This is based on http://patchwork.ozlabs.org/patch/126798/ with the following changes:
- Rebase to current mainline and updates for current gadget API
- Use SPDX identifiers for licenses
- Traced the history and added missing copyright to cmd_fastboot.c
- Use load_addr/load_size for transfer buffer
- Allow vendor strings to be optional
[snip]
To sum up:
It seems that you are using UDC driver + gadget approach for fastboot.
However, current gadgets for downloading data (DFU, UMS, THOR) use UDC + composite gadget + function.
Also they use common download code - g_dnl.c to implement their commands.
I would be more than happy if you were willing to port the fastboot protocol to the existing framework. For overall picture of the current design please look into the following keynote: http://www.denx.de/wiki/pub/U-Boot/MiniSummitELCE2013/dfu_elce_u-boot.pdf
Please let me know if you have any questions.
Thanks for your review. I have this working using the common g_dnl.c code now. I have a bit more clean-up to do and I will post it. My current branch is here:
git://git.linaro.org/people/rob.herring/u-boot.git fastboot-v2
Rob