[U-Boot] [PATCH] arm/km: change default settings for egiga on mgcoge3un

[Prafulla Wadaskar]

> -----Original Message-----
> From: Valentin Longchamp [mailto:valentin.longchamp at keymile.com]
> Sent: Friday, April 08, 2011 6:18 PM
> To: u-boot at lists.denx.de
> Cc: holger.brunck at keymile.com; hs at denx.de; Wolfgang Denk; Detlev Zundel;
> Prafulla Wadaskar; Valentin Longchamp
> Subject: [PATCH] arm/km: change default settings for egiga on mgcoge3un
> 
> From: Holger Brunck <holger.brunck at keymile.com>
> 
> The reason we need this is that we have the gig port on mgcoge3un
> connected using a back-to-back pair of PHYs. There are no magnetics and
> because of that the port has to be run with a fixd configuration and
> auto-negotiation must be disabled. In the default mode the egiga driver
> uses autoneg to determine port speed - which defaults to 1G (we need
> 100M full duplex).
> 
> Signed-off-by: Holger Brunck <holger.brunck at keymile.com>
> Acked-by: Heiko Schocher <hs at denx.de>
> cc: Wolfgang Denk <wd at denx.de>
> cc: Detlev Zundel <dzu at denx.de>
> cc: Prafulla Wadaskar <prafulla at marvell.com>
> cc: Valentin Longchamp <valentin.longchamp at keymile.com>
> Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
> ---
>  drivers/net/mvgbe.h         |    2 ++
>  include/configs/mgcoge3un.h |   25 +++++++++++++++++++++++++
>  2 files changed, 27 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/mvgbe.h b/drivers/net/mvgbe.h
> index 3de98d0..d8a5429 100644
> --- a/drivers/net/mvgbe.h
> +++ b/drivers/net/mvgbe.h
> @@ -84,6 +84,7 @@
>  	MVGBE_TX_BURST_SIZE_16_64BIT)
> 
>  /* Default port serial control value */
> +#ifndef PORT_SERIAL_CONTROL_VALUE
>  #define PORT_SERIAL_CONTROL_VALUE		( \
>  	MVGBE_FORCE_LINK_PASS			| \
>  	MVGBE_DIS_AUTO_NEG_FOR_DUPLX		| \
> @@ -101,6 +102,7 @@
>  	MVGBE_CLR_EXT_LOOPBACK			| \
>  	MVGBE_SET_FULL_DUPLEX_MODE		| \
>  	MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX)
> +#endif
> 
>  /* Tx WRR confoguration macros */
>  #define PORT_MAX_TRAN_UNIT	0x24	/* MTU register (default) 9KByte */
> diff --git a/include/configs/mgcoge3un.h b/include/configs/mgcoge3un.h
> index da5935b..c7f9056 100644
> --- a/include/configs/mgcoge3un.h
> +++ b/include/configs/mgcoge3un.h
> @@ -48,6 +48,31 @@
>  #define KM_ENV_BUS	"pca9547:70:d" /* I2C2 (Mux-Port 5)*/
> 
>  /*
> + * mgcoge3un has a fixed link to the marvell switch
> + * with 100MB full duplex and autoneg off, for this
> + * reason we have to change the default settings
> + */
> +#define PORT_SERIAL_CONTROL_VALUE		( \
> +	MVGBE_FORCE_LINK_PASS			| \
> +	MVGBE_DIS_AUTO_NEG_FOR_DUPLX		| \
> +	MVGBE_DIS_AUTO_NEG_FOR_FLOW_CTRL	| \
> +	MVGBE_ADV_NO_FLOW_CTRL			| \
> +	MVGBE_FORCE_FC_MODE_NO_PAUSE_DIS_TX	| \
> +	MVGBE_FORCE_BP_MODE_NO_JAM		| \
> +	(1 << 9) /* Reserved bit has to be 1 */	| \
> +	MVGBE_DO_NOT_FORCE_LINK_FAIL		| \
> +	MVGBE_DIS_AUTO_NEG_SPEED_GMII		| \
> +	MVGBE_DTE_ADV_0				| \
> +	MVGBE_MIIPHY_MAC_MODE			| \
> +	MVGBE_AUTO_NEG_NO_CHANGE		| \
> +	MVGBE_MAX_RX_PACKET_1552BYTE		| \
> +	MVGBE_CLR_EXT_LOOPBACK			| \
> +	MVGBE_SET_FULL_DUPLEX_MODE		| \
> +	MVGBE_DIS_FLOW_CTRL_TX_RX_IN_FULL_DUPLEX	|\
> +	MVGBE_SET_GMII_SPEED_TO_10_100	|\
> +	MVGBE_SET_MII_SPEED_TO_100)
> +
> +/*
>   * Default environment variables
>   */
>  #define CONFIG_EXTRA_ENV_SETTINGS

Acked-by: Prafulla Wadaskar <Prafulla at marvell.com>

Regards..
Prafulla . .

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> 1.7.0.5