[U-Boot] FW: ARM Pull Request

[Stefan Roese <sr@denx.de>]

On Thursday 23 July 2009 08:44:57 Prafulla Wadaskar wrote:
> > So, is this ethernet port in question connected to switch?
> > Then a forced link
> > (highest speed) should be used.
>
> This is what I was trying to do,
> but it was through CONGIF_ options and that is applied to both ports,
> in case we need to force link speed then I need to provide some
> configurable interface for u-boot kirkwood egiga driver.

We have such an "interface" in the PPC4xx ethernet driver:

drivers/net/4xx_enet.c:

/*--------------------------------------------------------------------+
 * Fixed PHY (PHY-less) support for Ethernet Ports.
 *--------------------------------------------------------------------*/

/*
 * Some boards do not have a PHY for each ethernet port. These ports
 * are known as Fixed PHY (or PHY-less) ports. For such ports, set
 * the appropriate CONFIG_PHY_ADDR equal to CONFIG_FIXED_PHY and
 * then define CONFIG_SYS_FIXED_PHY_PORTS to define what the speed and
 * duplex should be for these ports in the board configuration
 * file.
 *
 * For Example:
 *     #define CONFIG_FIXED_PHY   0xFFFFFFFF
 *
 *     #define CONFIG_PHY_ADDR    CONFIG_FIXED_PHY
 *     #define CONFIG_PHY1_ADDR   1
 *     #define CONFIG_PHY2_ADDR   CONFIG_FIXED_PHY
 *     #define CONFIG_PHY3_ADDR   3
 *
 *     #define CONFIG_SYS_FIXED_PHY_PORT(devnum,speed,duplex) \
 *                     {devnum, speed, duplex},
 *
 *     #define CONFIG_SYS_FIXED_PHY_PORTS \
 *                     CONFIG_SYS_FIXED_PHY_PORT(0,1000,FULL) \
 *                     CONFIG_SYS_FIXED_PHY_PORT(2,100,HALF)
 */

#ifndef CONFIG_FIXED_PHY
#define CONFIG_FIXED_PHY	0xFFFFFFFF /* Fixed PHY (PHY-less) */
#endif

#ifndef CONFIG_SYS_FIXED_PHY_PORTS
#define CONFIG_SYS_FIXED_PHY_PORTS	/* default is an empty array */
#endif

struct fixed_phy_port {
	unsigned int devnum;	/* ethernet port */
	unsigned int speed;	/* specified speed 10,100 or 1000 */
	unsigned int duplex;	/* specified duplex FULL or HALF */
};

static const struct fixed_phy_port fixed_phy_port[] = {
	CONFIG_SYS_FIXED_PHY_PORTS	/* defined in board configuration file 
*/
};


And include/configs/canyonlands.h:

#define CONFIG_FIXED_PHY	0xFFFFFFFF
#define CONFIG_PHY_ADDR		CONFIG_FIXED_PHY

#define CONFIG_SYS_FIXED_PHY_PORT(devnum, speed, duplex) \
		{devnum, speed, duplex}
#define CONFIG_SYS_FIXED_PHY_PORTS \
		CONFIG_SYS_FIXED_PHY_PORT(0, 1000, FULL)



It's definitely not perfect but perhaps you could re-use it for your problem 
as well.

Best regards,
Stefan

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