From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Date: Wed, 20 Jun 2012 23:41:39 -0600 Subject: [U-Boot] [PATCH v4 1/1] tegra: usb: Fix device enumeration problem of USB1 In-Reply-To: <4B9C9637D5087840A465BDCB251780E9E2D6EDA3E6@HKMAIL02.nvidia.com> References: <4B9C9637D5087840A465BDCB251780E9E2D6EDA3E6@HKMAIL02.nvidia.com> Message-ID: <4FE2B413.1080008@wwwdotorg.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 06/20/2012 09:24 PM, Jim Lin wrote: > A known hardware issue of USB1 port where bit 1 (connect status > change) of PORTSC register will be set after issuing Port Reset > (like "usb reset" in u-boot command line). > This will be treated as an error and stops later device enumeration. > > Therefore we clear that bit after Port Reset in order to proceed > later device enumeration. > > Signed-off-by: Jim Lin Acked-by: Stephen Warren