From mboxrd@z Thu Jan  1 00:00:00 1970
From: Reinhard Meyer <u-boot@emk-elektronik.de>
Date: Fri, 03 Sep 2010 22:31:47 +0200
Subject: [U-Boot] [PATCH] NET: add ENC28J60 driver using SPI framework
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On 03.09.2010 21:51, Mike Frysinger wrote:
> yes and no.  the spi bus/cs/mode/speed is established at initialize() time,
> not init(), so you'd need to store that per-instance information somewhere.
> and how the discussion about netconsole handling falls out (not calling
> init/halt after every transaction), this base assumption may not be valid.
> -mike

/*
  * This is the only exported function.
  *
  * It may be called several times with different bus:cs combinations.
  */
int enc_initialize(int bus, int cs, int speed)
{
	enc_dev_t *enc;

	enc = malloc(sizeof(*enc));
	if (!enc) {
		return -1;
	}
	memset(enc, 0, sizeof(*enc));
	enc->slave = spi_setup_slave(bus, cs, speed, SPI_MODE_0);
	if (!enc->slave) {
		free(enc);
		return -1;
	}
	enc->netdev.init = enc_init;
	enc->netdev.halt = enc_halt;
	enc->netdev.send = enc_send;
	enc->netdev.recv = enc_recv;
	sprintf(enc->netdev.name, "enc%i.%i", bus, cs);
	eth_register(&(enc->netdev));
	return 0;
}
(not compiled yet)
not sure, however, if calling spi_setup_slave() is ok at this point.

Reinhard