Re: [PATCH 5/7] ARM: mx53-qsrb: enable USB OTG in host mode

From: Sascha Hauer <s.hauer@pengutronix.de>
To: "Eric Bénard" <eric@eukrea.com>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 5/7] ARM: mx53-qsrb: enable USB OTG in host mode
Date: Mon, 10 Feb 2014 09:16:17 +0100	[thread overview]
Message-ID: <20140210081617.GF17250@pengutronix.de> (raw)
In-Reply-To: <1391868972-31978-5-git-send-email-eric@eukrea.com>

On Sat, Feb 08, 2014 at 03:16:10PM +0100, Eric Bénard wrote:
> tested on i.MX53 START-R :
> barebox@Freescale i.MX53 Quick Start-R Board:/ usb -f
> USB: scanning bus for devices...
> Using index 0 for the new disk
> Bus 001 Device 002: ID 0951:1654 DT R500
> Bus 001 Device 001: ID 0000:0000 EHCI Host Controller
> Bus 002 Device 003: ID 0000:0000 EHCI Host Controller
> 3 USB Device(s) found
> 
> Signed-off-by: Eric Bénard <eric@eukrea.com>
> ---
>  arch/arm/dts/imx53-qsb-common.dtsi | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/dts/imx53-qsb-common.dtsi b/arch/arm/dts/imx53-qsb-common.dtsi
> index 4ae1f49..012d74c 100644
> --- a/arch/arm/dts/imx53-qsb-common.dtsi
> +++ b/arch/arm/dts/imx53-qsb-common.dtsi
> @@ -223,6 +223,8 @@
>  };
>  
>  &usbotg {
> -       status = "okay";
> +	phy_type = "utmi";
> +	dr_mode = "host";
> +	status = "okay";
>  };

Do we need a barebox specific option to specify dr_mode? I mean barebox
cannot do otg, so we need to specify dr_mode to host or device, but with
the above change Linux is limited to host mode aswell.

Sascha

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