linux-kernel - Re: [PATCH v2 6/9] usb: xhci: Add NVIDIA Tegra xHCI host-controller driver

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Message-ID: <20140830211558.GA13814@kroah.com>
Date:	Sat, 30 Aug 2014 14:15:58 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Andrew Bresticker <abrestic@...omium.org>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	linux-tegra@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mathias Nyman <mathias.nyman@...el.com>,
	Grant Likely <grant.likely@...aro.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Arnd Bergmann <arnd@...db.de>,
	Kishon Vijay Abraham I <kishon@...com>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 6/9] usb: xhci: Add NVIDIA Tegra xHCI host-controller
 driver

On Mon, Aug 18, 2014 at 10:08:22AM -0700, Andrew Bresticker wrote:
> Add support for the on-chip xHCI host controller present on Tegra SoCs.
> 
> The driver is currently very basic: it loads the controller with its
> firmware, starts the controller, and is able to service messages sent
> by the controller's firmware.  The hardware supports device mode as
> well as lower-power operating modes, but support for these is not yet
> implemented here.

So you are saying the device doesn't really work?  Can it handle USB
transactions properly?

I have a jetson board here, is this the controller for that hardware?
Can I test this series on that platform, or is it for something else?

> +static const struct tegra_xhci_soc_config tegra124_soc_config = {
> +	.firmware_file = "nvidia/tegra124/xusb.bin",
> +};
> +MODULE_FIRMWARE("nvidia/tegra124/xusb.bin");

Has this file been submitted to the linux-firmware tree?

thanks,

greg k-h
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