Subject: Re: [PATCH] New PHY for ppc405_phy.c

From: Armin Kuster <[email-masked]>
Date: Thu, 29 Nov 2001 09:28:59 -0800

Kent Borg wrote:
>
> I hope I am sending this to the right place, someone please correct me
> if I am doing this wrong...
>
> Our 405 board has a different PHY from those supported in the current
> sources, the following patch makes our PHY work.  If it looks
> sensible, please apply.
>
> Thanks,
>
> -kb
>
> --- linuxppc_2_4_devel/drivers/net/ppc405_phy.c Thu Nov 29 10:34:53 2001
> +++ linux-penguinppc4/drivers/net/ppc405_phy.c  Thu Nov 29 10:48:07 2001
> @@ -579,6 +579,75 @@
>         },
>  };
>
> +/* ------------------------------------------------------------------------- */
> +/* The Lucent Technologies LU3X31FT */
> +
> +/* register definitions */
> +
> +#define MII_LU3X31FT_PHYCTRLSTS 0x17    /* PHY Control/Status Register */
> +#define MII_LU3X31FT_IER        0x1D    /* PHY interrupt enable Register */
> +#define MII_LU3X31FT_ISR        0x1E    /* PHY interrupt status Register */
> +
> +static void mii_parse_lu3x31ft_pcr(uint mii_reg, struct net_device *dev)
> +{
> +       struct fec_enet_private *fep = dev->priv;
> +       volatile uint *s = &(fep->phy_status);
> +
> +       *s &= ~(PHY_STAT_SPMASK);
> +
> +       switch((mii_reg >> 8) & 3) {
> +               case 0:
> +                       *s |= PHY_STAT_10HDX;
> +                       break;
> +               case 1:
> +                       *s |= PHY_STAT_10FDX;
> +                       break;
> +               case 2:
> +                       *s |= PHY_STAT_100HDX;
> +                       break;
> +               case 3:
> +                       *s |= PHY_STAT_100FDX;
> +                       break;
> +       }
> +}
> +
> +static phy_info_t phy_info_lu3x31ft = {
> +       0x90307421,
> +       "LU3X31FT",
> +       0,
> +       (const phy_cmd_t []) {  /* config */
> +
> +               /* parse cr and anar to get some info */
> +
> +               { mk_mii_read(MII_REG_CR), mii_parse_cr },
> +               { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
> +               { mk_mii_end, }
> +       },
> +       (const phy_cmd_t []) {  /* startup - enable interrupts */
> +               { mk_mii_write(MII_LU3X31FT_IER, 0x0000), NULL },
> +               { mk_mii_write(MII_REG_CR, PHY_BMCR_RST_NEG), NULL }, /* autonegotiate */
> +               { mk_mii_end, }
> +       },
> +       ( const phy_cmd_t []) { /* ack_int */
> +
> +               /* we need to read ISR, SR and ANER to acknowledge */
> +
> +               { mk_mii_read(MII_LU3X31FT_ISR), NULL },
> +               { mk_mii_read(MII_REG_SR), mii_parse_sr },
> +               { mk_mii_read(MII_REG_ANAR), mii_parse_anar },
> +
> +               /* read pcr to get info */
> +
> +               { mk_mii_read(MII_LU3X31FT_PHYCTRLSTS), mii_parse_lu3x31ft_pcr },
> +               { mk_mii_end, }
> +       },
> +       ( const phy_cmd_t []) { /* shutdown - disable interrupts */
> +               { mk_mii_write(MII_LU3X31FT_IER, 0xff80), NULL },
> +               { mk_mii_end, }
> +       },
> +};
> +
> +
>
>  /* ------------------------------------------------------------------------- */
>  /* The AMD Am79C875*/
> @@ -659,6 +728,7 @@
>         &phy_info_lxt971a,
>         &phy_info_cs8952,
>         &phy_info_dp83846A,
> +       &phy_info_lu3x31ft,
>         &phy_info_Am79C875,
>         NULL
>  };
>

Thanks,

-- armin

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