From mboxrd@z Thu Jan  1 00:00:00 1970
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Mon, 01 Sep 2014 09:28:40 +0200
Subject: [U-Boot] [PATCH] usb: ci_udc: implement dfu_usb_get_reset
In-Reply-To: <1408996935-6428-1-git-send-email-swarren@wwwdotorg.org>
References: <1408996935-6428-1-git-send-email-swarren@wwwdotorg.org>
Message-ID: <20140901092840.03bf4f4c@amdc2363>
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To: u-boot@lists.denx.de

Hi Stephen,

> From: Stephen Warren <swarren@nvidia.com>
> 
> This allows the USB code to determine whether a USB bus reset was
> issued, which in turn allows the code to differentiate between a
> detach (return to shell prompt) and a board reset/reboot request.
> 
> Signed-off-by: Stephen Warren <swarren@nvidia.com>
> ---
> Note that this patch relies on the following unapplied patch:
> [PATCH 1/2] dfu: Provide means to find difference between dfu-util -e
> and -R ---
>  drivers/usb/gadget/ci_udc.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
> index 4cd19c3afd22..2572b346ebfa 100644
> --- a/drivers/usb/gadget/ci_udc.c
> +++ b/drivers/usb/gadget/ci_udc.c
> @@ -919,3 +919,10 @@ int usb_gadget_unregister_driver(struct
> usb_gadget_driver *driver) 
>  	return 0;
>  }
> +
> +bool dfu_usb_get_reset(void)
> +{
> +	struct ci_udc *udc = (struct ci_udc *)controller.ctrl->hcor;
> +
> +	return !!(readl(&udc->usbsts) & STS_URI);
> +}

Applied to u-boot-dfu.

Thanks!

-- 
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group