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MPC5200 FEC MII speed register
Set a non-zero speed in the MII register so that MII commands will work. Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
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3c92217732
commit
f949bd8d08
1 changed files with 16 additions and 7 deletions
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@ -281,13 +281,6 @@ static int mpc5xxx_fec_init(struct eth_device *dev, bd_t * bis)
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}
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fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */
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if (fec->xcv_type != SEVENWIRE) {
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/*
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* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
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* and do not drop the Preamble.
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*/
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fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
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}
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/*
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* Set Opcode/Pause Duration Register
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@ -640,6 +633,15 @@ static void mpc5xxx_fec_halt(struct eth_device *dev)
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*/
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udelay(10);
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/* don't leave the MII speed set to zero */
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if (fec->xcv_type != SEVENWIRE) {
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/*
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* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
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* and do not drop the Preamble.
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*/
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fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
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}
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#if (DEBUG & 0x3)
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printf("Ethernet task stopped\n");
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#endif
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@ -897,6 +899,13 @@ int mpc5xxx_fec_initialize(bd_t * bis)
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#else
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#error fec->xcv_type not initialized.
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#endif
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if (fec->xcv_type != SEVENWIRE) {
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/*
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* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
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* and do not drop the Preamble.
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*/
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fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
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}
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dev->priv = (void *)fec;
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dev->iobase = MPC5XXX_FEC;
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