linux-kernel - Re: [PATCH] ARM: tegra: nyan: Mark all USB ports as host

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Date:   Mon, 7 Nov 2016 14:28:54 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     Paul Kocialkowski <contact@...lk.fr>
Cc:     linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        Alexandre Courbot <gnurou@...il.com>,
        Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH] ARM: tegra: nyan: Mark all USB ports as host

On Sun, Sep 18, 2016 at 12:28:52PM +0200, Paul Kocialkowski wrote:
> Nyan boards only have host USB ports (2 external, 1 internal), there is
> no OTG-enabled connector.
> 
> Signed-off-by: Paul Kocialkowski <contact@...lk.fr>
> ---
>  arch/arm/boot/dts/tegra124-nyan.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Where is this information coming from? I don't have one of the Nyans
myself, but one of the Tegra132 devices I have, which I think was
derived from one of the Nyans uses one of the external host ports as
forced recovery port, for which it would need OTG.

I suspect that the way to get U-Boot onto the Nyans is via tegrarcm?
In that case I think one of the ports must be OTG.

Thierry

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