From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [U-Boot,1/1] dwc2 USB controller hangs with lan78xx
Date: Thu, 28 Jun 2018 08:49:18 -0400 [thread overview]
Message-ID: <20180628124918.GA18596@bill-the-cat> (raw)
In-Reply-To: <1529348166-130059-2-git-send-email-andrew.thomas@oracle.com>
On Mon, Jun 18, 2018 at 11:56:06AM -0700, Andrew Thomas wrote:
> This bug is the combination of dwc2 USB controller and lan78xx
> USB ethernet controller, which is the combination in use on
> the Raspberry Pi Model 3 B+.
>
> When the host attempts to receive a packet, but a packet has not
> arrived, the lan78xx controller responds by setting BIR
> (Bulk-In Empty Response) to NAK. Unfortunately, this hangs
> the USB controller and requires the USB controller to
> be reset.
>
> The fix proposed is to have the lan78xx controller respond
> by setting BIR to ZLP.
>
> Signed-off-by: Andrew Thomas <andrew.thomas@oracle.com>
> Tested-by: Peter Robinson <pbrobinson@gmail.com>
> Reviewed-by: Alexander Graf <agraf@suse.de>
Applied to u-boot/master, thanks!
--
Tom
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prev parent reply other threads:[~2018-06-28 12:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-18 18:56 [U-Boot] [PATCH 0/1] dwc2 USB controller hangs with lan78xx Andrew Thomas
2018-06-18 18:56 ` [U-Boot] [PATCH 1/1] " Andrew Thomas
2018-06-21 8:37 ` Peter Robinson
2018-06-21 23:05 ` andrew thomas
2018-06-22 6:37 ` Peter Robinson
2018-06-26 12:34 ` Alexander Graf
2018-06-26 12:47 ` Peter Robinson
2018-06-26 15:55 ` Alexander Graf
2018-06-26 16:09 ` Peter Robinson
2018-06-26 18:57 ` andrew thomas
2018-06-27 16:45 ` Alexander Graf
2018-06-27 17:07 ` Tom Rini
2018-06-27 22:47 ` Alexander Graf
2018-06-26 11:36 ` Alexander Graf
2018-06-26 18:28 ` andrew thomas
2018-06-28 12:49 ` Tom Rini [this message]
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