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Bugfix in FEC initialisation:

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All MII configuration is done via FEC1 registers. But MII_SPEED was
configured according to FEC used. So if only FEC2 was used, this caused
the real MII_SPEED register in FEC1 to stay uninitalised, what lead
to "mii_send STUCK!" messages. Fix: always configure MII_SPEED on FEC1
only.
This commit is contained in:
Markus Klotzbuecher 2006-07-12 09:08:36 +02:00 • committed by Markus Klotzbuecher
parent b02d0177c1
commit d6cc73e4e7
1 changed files with 3 additions and 1 deletions
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4
cpu/mpc8xx/fec.c
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@ -396,8 +396,10 @@ static void fec_pin_init(int fecidx)
* * to 2.5 MHz.
* * This MDC frequency is equal to system clock / (2 * MII_SPEED).
* * Then MII_SPEED = system_clock / 2 * 2,5 Mhz.
*
* All MII configuration is done via FEC1 registers:
*/
fecp->fec_mii_speed = ((bd->bi_intfreq + 4999999) / 5000000) << 1;
immr->im_cpm.cp_fec1.fec_mii_speed = ((bd->bi_intfreq + 4999999) / 5000000) << 1;
#if defined(CONFIG_NETTA) || defined(CONFIG_NETPHONE) || defined(CONFIG_NETTA2)
/* our PHYs are the limit at 2.5 MHz */