[U-Boot] RFC [PATCH 3/5] usb: Some EHCI chipsets are slow to respond.

Prafulla Wadaskar prafulla at marvell.com
Wed Jul 27 20:23:50 CEST 2011



> -----Original Message-----
> From: Jason Cooper [mailto:u-boot at lakedaemon.net]
> Sent: Wednesday, July 27, 2011 2:49 AM
> To: clint at debian.org; wd at denx.de; Prafulla Wadaskar
> Cc: u-boot at lists.denx.de; Prabhanjan Sarnaik; Ashish Karkare; Siddarth
> Gore; bdale at gag.com; Jason Cooper
> Subject: RFC [PATCH 3/5] usb: Some EHCI chipsets are slow to respond.
> 
> This fixes 'EHCI timed out on TD...' on the dreamplug board.
> 
> Signed-off-by: Jason Cooper <u-boot at lakedaemon.net>
> ---
>  include/usb.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/include/usb.h b/include/usb.h
> index 53603a5..168e2b2 100644
> --- a/include/usb.h
> +++ b/include/usb.h
> @@ -46,7 +46,7 @@
>   * This is the timeout to allow for submitting an urb in ms. We allow
> more
>   * time for a BULK device to react - some are slow.
>   */
> -#define USB_TIMEOUT_MS(pipe) (usb_pipebulk(pipe) ? 5000 : 100)
> +#define USB_TIMEOUT_MS(pipe) (usb_pipebulk(pipe) ? 5000 : 500)

This looks global change, how will it affect other implementations?

Regards..
Prafulla . .


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