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Up to [local] / prex-old / dev / arm / cats

Start implementing basic hardware support for CATS, based on new autoconfiguration
mechanism. This effectively uses bus_space to abstract children of parents.
Some info about these drivers:
hostio is a host memory-mapped i/o - one and only child of 'root';
footbridge is just a proxy for now;
fuart is a DC21285 UART driver which fills uart_attach_args and attaches
com, which is machine independent driver;

This all is not finished yet (just quick hacks), but commit it so i could work at home.

/*
 * $Id: footbridge.c,v 1.1 2008/08/08 13:18:16 nbrk Exp $
 */
/*
 * DC21285 core logic.
 * TODO.
 */
#include <driver.h>
#include <bus.h>

/*
 * Autoconf glue.
 */
int	footbridge_match(struct device *parent, void *aux);
int	footbridge_attach(struct device *parent, struct device *self, void *aux);

struct driver footbridge_drv = {
	"footbridge",					/* name */
	1 ,/* datasize */
	footbridge_match,				/* match */
	footbridge_attach,				/* attach */
	NULL,						/* detach */
	-1							/* nunits XXX */
};


int
footbridge_match(struct device *parent, void *aux)
{
	return(1);
}


int
footbridge_attach(struct device *parent, struct device *self, void *aux)
{
	printk("DC21285 Core Logic\n");

	/* just proxy aux (which is a hostio tag) */

	config_search_children(self, aux);
}