Re: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-27 Thread Tom Warren
Jim, > -Original Message- > From: Jim Lin > Sent: Sunday, June 24, 2012 11:41 PM > To: 'u-boot@lists.denx.de' > Cc: Tom Warren; Marek Vasut; 'Stephen Warren' > Subject: [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1 This patch has been applied to u-boot-tegra/master. T

Re: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-25 Thread Marek Vasut
Dear Tom Warren, > Marek, > > > -Original Message- > > From: Marek Vasut [mailto:marek.va...@gmail.com] > > Sent: Monday, June 25, 2012 4:48 PM > > To: Stephen Warren > > Cc: Jim Lin; 'u-boot@lists.denx.de'; Tom Warren > > Subject: Re: [PATCH v5 1/1] tegra: usb: Fix device enumeration pro

Re: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-25 Thread Tom Warren
Marek, > -Original Message- > From: Marek Vasut [mailto:marek.va...@gmail.com] > Sent: Monday, June 25, 2012 4:48 PM > To: Stephen Warren > Cc: Jim Lin; 'u-boot@lists.denx.de'; Tom Warren > Subject: Re: [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of > USB1 > > Dear Stephen W

Re: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-25 Thread Marek Vasut
Dear Stephen Warren, > On 06/25/2012 12:40 AM, 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

Re: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-25 Thread Stephen Warren
On 06/25/2012 12:40 AM, 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. > > Therefo

[U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1

2012-06-24 Thread Jim Lin
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 p