Re: [PATCH 3/7] usb: ehci: add freescale imx28 special write register method
On Thu, Dec 05, 2013 at 03:20:51PM +0800, Peter Chen wrote: According to Freescale imx28 Errata, ENGR119653 USB: ARM to USB register error issue, All USB register write operations must use the ARM SWP instruction. So, we implement a special ehci_write for imx28. Discussion for it at below: http://marc.info/?l=linux-usbm=137996395529294w=2 Signed-off-by: Peter Chen peter.c...@freescale.com Acked-by: Alan Stern st...@rowland.harvard.edu Signed-off-by: Marc Kleine-Budde m...@pengutronix.de Tested-by: Marc Kleine-Budde m...@pengutronix.de --- drivers/usb/host/ehci.h | 18 +- 1 files changed, 17 insertions(+), 1 deletions(-) How is this a regression that needs to be fixed in 3.13-final? thanks, greg k-h -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: [PATCH 3/7] usb: ehci: add freescale imx28 special write register method
On Thu, Dec 05, 2013 at 03:20:51PM +0800, Peter Chen wrote: According to Freescale imx28 Errata, ENGR119653 USB: ARM to USB register error issue, All USB register write operations must use the ARM SWP instruction. So, we implement a special ehci_write for imx28. Discussion for it at below: http://marc.info/?l=linux-usbm=137996395529294w=2 Signed-off-by: Peter Chen peter.c...@freescale.com Acked-by: Alan Stern st...@rowland.harvard.edu Signed-off-by: Marc Kleine-Budde m...@pengutronix.de Tested-by: Marc Kleine-Budde m...@pengutronix.de --- drivers/usb/host/ehci.h | 18 +- 1 files changed, 17 insertions(+), 1 deletions(-) How is this a regression that needs to be fixed in 3.13-final? Without this patchset, there is lots of usb errors at i.mx28. It was reported at: http://marc.info/?l=linux-usbm=137996395529294w=2. -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 3/7] usb: ehci: add freescale imx28 special write register method
On Mon, Dec 09, 2013 at 08:37:55AM +, peter.c...@freescale.com wrote: On Thu, Dec 05, 2013 at 03:20:51PM +0800, Peter Chen wrote: According to Freescale imx28 Errata, ENGR119653 USB: ARM to USB register error issue, All USB register write operations must use the ARM SWP instruction. So, we implement a special ehci_write for imx28. Discussion for it at below: http://marc.info/?l=linux-usbm=137996395529294w=2 Signed-off-by: Peter Chen peter.c...@freescale.com Acked-by: Alan Stern st...@rowland.harvard.edu Signed-off-by: Marc Kleine-Budde m...@pengutronix.de Tested-by: Marc Kleine-Budde m...@pengutronix.de --- drivers/usb/host/ehci.h | 18 +- 1 files changed, 17 insertions(+), 1 deletions(-) How is this a regression that needs to be fixed in 3.13-final? Without this patchset, there is lots of usb errors at i.mx28. It was reported at: http://marc.info/?l=linux-usbm=137996395529294w=2. This patchset includes [3/7], [4/7] and [5/7]. Thanks. -- Best Regards, Peter Chen -- To unsubscribe from this list: send the line unsubscribe linux-usb in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 3/7] usb: ehci: add freescale imx28 special write register method
On 12/09/2013 03:04 AM, Greg KH wrote: On Thu, Dec 05, 2013 at 03:20:51PM +0800, Peter Chen wrote: According to Freescale imx28 Errata, ENGR119653 USB: ARM to USB register error issue, All USB register write operations must use the ARM SWP instruction. So, we implement a special ehci_write for imx28. Discussion for it at below: http://marc.info/?l=linux-usbm=137996395529294w=2 Signed-off-by: Peter Chen peter.c...@freescale.com Acked-by: Alan Stern st...@rowland.harvard.edu Signed-off-by: Marc Kleine-Budde m...@pengutronix.de Tested-by: Marc Kleine-Budde m...@pengutronix.de --- drivers/usb/host/ehci.h | 18 +- 1 files changed, 17 insertions(+), 1 deletions(-) How is this a regression that needs to be fixed in 3.13-final? Yes, all three (3/7, 4/7, 5/7) should go into v3.13, add you please add stable on Cc as well. Thanks, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions| Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917- | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | signature.asc Description: OpenPGP digital signature
