/*	$NetBSD: zynq_cemac.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
/*-
 * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
 * Written by Hashimoto Kenichi for Genetec Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: zynq_cemac.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");

#include "opt_soc.h"

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/intr.h>
#include <sys/systm.h>

#include <dev/cadence/cemacreg.h>
#include <dev/cadence/if_cemacvar.h>

#include <dev/fdt/fdtvar.h>

static const char * compatible[] = {
	"cdns,zynq-gem",
	NULL
};

int
cemac_match(device_t parent, cfdata_t cfdata, void *aux)
{
	struct fdt_attach_args * const faa = aux;

	return of_match_compatible(faa->faa_phandle, compatible);
}

void
cemac_attach(device_t parent, device_t self, void *aux)
{
	struct fdt_attach_args * const faa = aux;
	const int phandle = faa->faa_phandle;
	bus_space_handle_t ioh;
	char intrstr[128];
	bus_addr_t addr;
	bus_size_t size;
	int error;

	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
		aprint_error(": couldn't get registers\n");
		return;
	}

	error = bus_space_map(faa->faa_bst, addr, size, 0, &ioh);
	if (error) {
		aprint_error(": failed to map register %#lx@%#lx: %d\n",
		    size, addr, error);
		return;
	}

	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
		aprint_error(": failed to decode interrupt\n");
		return;
	}

	if (fdtbus_intr_establish(phandle, 0, IPL_NET, 0, cemac_intr,
		device_private(self)) == NULL) {
		aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr);
		return;
	}
	aprint_normal_dev(self, "interrupting on %s\n", intrstr);

	cemac_attach_common(self, faa->faa_bst, ioh, faa->faa_dmat, CEMAC_FLAG_GEM);
}