From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2] usb: musb-new: omap2430: Reset the MUSB controller early
Date: Tue, 20 Jan 2015 10:23:10 -0500 [thread overview]
Message-ID: <20150120152310.GK10826@bill-the-cat> (raw)
In-Reply-To: <1421688823-12733-1-git-send-email-contact@paulk.fr>
On Mon, Jan 19, 2015 at 06:33:43PM +0100, Paul Kocialkowski wrote:
> When booting from USB peripheral boot, the bootrom will not properly deinit the
> MUSB controller, which doesn't clearly indicate an USB disconnection to the host
> and leaves U-Boot to deal with the state of the previous USB session.
>
> On some host controller drivers (e.g. xhci_hcd), this ends up in a failure
> during set address, caused by the lack of proper disconnection notification.
>
> Resetting the controller early in U-Boot notifies the host of the disconnection
> and doesn't hurt other use cases.
>
> Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
--
Tom
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next prev parent reply other threads:[~2015-01-20 15:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-18 16:44 [U-Boot] [PATCH] usb: musb-new: omap2430: Reset the MUSB controller early Paul Kocialkowski
2015-01-18 22:51 ` Marek Vasut
2015-01-19 13:29 ` Paul Kocialkowski
2015-01-19 15:12 ` Marek Vasut
2015-01-19 17:33 ` [U-Boot] [PATCH v2] " Paul Kocialkowski
2015-01-20 15:23 ` Tom Rini [this message]
2015-01-22 7:19 ` Marek Vasut
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