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MPC5200 FEC MII speed register

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Set a non-zero speed in the MII register so that MII commands will work.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
This commit is contained in:
Jon Smirl 2009-03-11 15:08:56 -04:00 committed by John Rigby
parent 3c92217732
commit f949bd8d08
1 changed files with 16 additions and 7 deletions
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23
drivers/net/mpc5xxx_fec.c
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@ -281,13 +281,6 @@ static int mpc5xxx_fec_init(struct eth_device *dev, bd_t * bis)
} }
fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */ fec->eth->x_cntrl = 0x00000000; /* half-duplex, heartbeat disabled */
if (fec->xcv_type != SEVENWIRE) {
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
*/
fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
}
/* /*
* Set Opcode/Pause Duration Register * Set Opcode/Pause Duration Register
@ -640,6 +633,15 @@ static void mpc5xxx_fec_halt(struct eth_device *dev)
*/ */
udelay(10); udelay(10);
/* don't leave the MII speed set to zero */
if (fec->xcv_type != SEVENWIRE) {
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
*/
fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
}
#if (DEBUG & 0x3) #if (DEBUG & 0x3)
printf("Ethernet task stopped\n"); printf("Ethernet task stopped\n");
#endif #endif
@ -897,6 +899,13 @@ int mpc5xxx_fec_initialize(bd_t * bis)
#else #else
#error fec->xcv_type not initialized. #error fec->xcv_type not initialized.
#endif #endif
if (fec->xcv_type != SEVENWIRE) {
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
*/
fec->eth->mii_speed = (((gd->ipb_clk >> 20) / 5) << 1); /* No MII for 7-wire mode */
}
dev->priv = (void *)fec; dev->priv = (void *)fec;
dev->iobase = MPC5XXX_FEC; dev->iobase = MPC5XXX_FEC;