[U-Boot] [PATCH 15/25] SPEAr: Enable autoneg for ethernet

[Stefan Roese]

On Wednesday 07 March 2012 13:04:04 Amit Virdi wrote:
> From: Shiraz Hashim <shiraz.hashim at st.com>
> 
> The linux-2.6.37 base port has few problems with nfs boot. The boot
> fails while getting timeout on attempting to mount root file system.
> This helps the ethernet to bring up faster in linux boot thus avoiding
> the time out.
> Besides, it was reported that few phys on SPEAr board are failing in
> certain network conditions which is avoided by enabling autonegotiation.
> See issue #115943 in global bug tracker.

Hmmm. This sounds like a problem in the Linux network/PHY code then. Which 
needs to get fixed there instead of changing something here in U-Boot. Please 
think about situations where the ethernet driver is not called at all in U-
Boot (booting from NOR/NAND). With my changes to defer the ethernet probing to 
the first usage.

One more comment below.

> Reported-by: Deepak Sikri <deepak.sikri at st.com>
> Reported-by: Armando Visconti <armando.visconti at st.com>
> Signed-off-by: Shiraz Hashim <shiraz.hashim at st.com>
> Signed-off-by: Amit Virdi <amit.virdi at st.com>
> ---
>  include/configs/spear-common.h |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/include/configs/spear-common.h
> b/include/configs/spear-common.h index 5b6ef72..26642f1 100644
> --- a/include/configs/spear-common.h
> +++ b/include/configs/spear-common.h
> @@ -35,6 +35,7 @@
>  #define CONFIG_DW0_PHY				1
>  #define CONFIG_NET_MULTI
>  #define CONFIG_PHY_RESET_DELAY			(10000)		/* 
in usec */
> +#define CONFIG_DW_AUTONEG			1

Please don't add the "1" here.

>  #endif
> 
>  /* USBD driver configuration */

-- 
Viele Grüße,
Stefan

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