[U-Boot] [PATCH] drivers/qe/uec_phy.c: Added PHY-less (fixed PHY) driver.

[Richard Retanubun <RichardRetanubun@RuggedCom.com>]

Richard Retanubun wrote:

Hi Ben,

I forgot to cc you on the patch e-mail, when you got a chance, do you mind looking at this patch.

Thanks,

- Richard

> Copied over the fixed PHY driver as used in pp4xx/4xx_enet.c.
> This adds support for PHY-less MAC connections to the UEC.
>
> Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
> ---
> Documentation change only:
> Same patch as before, now with a board configuration file example that
> actually applies to UEC based boards :)
>
>  drivers/qe/uec_phy.c |   78 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 78 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c
> index 2243d3b..b64748b 100644
> --- a/drivers/qe/uec_phy.c
> +++ b/drivers/qe/uec_phy.c
> @@ -44,6 +44,53 @@
>  #define ugphy_vdbg(ugeth, fmt, args...) do { } while (0)
>  #endif /* UEC_VERBOSE_DEBUG */
>  
> +/*--------------------------------------------------------------------+
> + * Fixed PHY (PHY-less) support for Ethernet Ports.
> + *
> + * Adapted from cpu/ppc4xx/4xx_enet.c
> + *--------------------------------------------------------------------*/
> +
> +/*
> + * 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,
> + * define CONFIG_SYS_FIXED_PHY_PORTS to define what the speed and
> + * duplex should be for these ports in the board configuration file.
> + *
> + * Example board configuration file:
> + *
> + *	#define CONFIG_FIXED_PHY   0xFFFFFFFF
> + *
> + *	#define CONFIG_SYS_UEC1_PHY_ADDR 0 <- PHY-less port
> + *	#define CONFIG_SYS_UEC2_PHY_ADDR 1
> + *	#define CONFIG_SYS_UEC3_PHY_ADDR 2 <- PHY-less port
> + *	#define CONFIG_SYS_UEC4_PHY_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, SPEED_1000, DUPLEX_FULL) \
> + *		CONFIG_SYS_FIXED_PHY_PORT(2, SPEED_100, DUPLEX_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 */
> +};
> +
>  static void config_genmii_advert (struct uec_mii_info *mii_info);
>  static void genmii_setup_forced (struct uec_mii_info *mii_info);
>  static void genmii_restart_aneg (struct uec_mii_info *mii_info);
> @@ -533,6 +580,28 @@ static void dm9161_close (struct uec_mii_info *mii_info)
>  {
>  }
>  
> +static int fixed_phy_aneg (struct uec_mii_info *mii_info)
> +{
> +	mii_info->autoneg = 0; /* Turn off auto negotiation for fixed phy */
> +	return 0;
> +}
> +
> +static int fixed_phy_read_status (struct uec_mii_info *mii_info)
> +{
> +	int i = 0;
> +
> +	for (i = 0; i < ARRAY_SIZE(fixed_phy_port); i++) {
> +		if (mii_info->mii_id == fixed_phy_port[i].devnum) {
> +			mii_info->speed = fixed_phy_port[i].speed;
> +			mii_info->duplex = fixed_phy_port[i].duplex;
> +			mii_info->link = 1; /* Link is always UP */
> +			mii_info->pause = 0;
> +			break;
> +		}
> +	}
> +	return 0;
> +}
> +
>  static struct phy_info phy_info_dm9161 = {
>  	.phy_id = 0x0181b880,
>  	.phy_id_mask = 0x0ffffff0,
> @@ -577,6 +646,14 @@ static struct phy_info phy_info_bcm5481 = {
>  	.init = bcm_init,
>  };
>  
> +static struct phy_info phy_info_fixedphy = {
> +	.phy_id = CONFIG_FIXED_PHY,
> +	.phy_id_mask = CONFIG_FIXED_PHY,
> +	.name = "Fixed PHY",
> +	.config_aneg = fixed_phy_aneg,
> +	.read_status = fixed_phy_read_status,
> +};
> +
>  static struct phy_info phy_info_genmii = {
>  	.phy_id = 0x00000000,
>  	.phy_id_mask = 0x00000000,
> @@ -591,6 +668,7 @@ static struct phy_info *phy_info[] = {
>  	&phy_info_dm9161a,
>  	&phy_info_marvell,
>  	&phy_info_bcm5481,
> +	&phy_info_fixedphy,
>  	&phy_info_genmii,
>  	NULL
>  };