xref: /src/sys/arch/arm/nxp/imx_snvs.c

/*	$NetBSD: imx_snvs.c,v 1.3 2024/02/07 04:20:27 msaitoh Exp $	*/

/*
 * Copyright (c) 2014 Ryo Shimizu
 * All rights reserved.
 *
 * 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 AUTHOR ``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 AUTHOR 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.
 */

/*
 * i.MX6 Secure Non-Volatile Storage
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: imx_snvs.c,v 1.3 2024/02/07 04:20:27 msaitoh Exp $");

#include <sys/bus.h>
#include <sys/device.h>
#include <sys/param.h>

#include <dev/fdt/fdtvar.h>

#include <arm/imx/imxsnvsvar.h>

static const struct device_compatible_entry compat_data[] = {
	{ .compat = "fsl,sec-v4.0-mon" },
	DEVICE_COMPAT_EOL
};

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

	return of_compatible_match(faa->faa_phandle, compat_data);
}

void
imxsnvs_attach(device_t parent, device_t self, void *aux)
{
	struct fdt_attach_args * const faa = aux;
	const int phandle = faa->faa_phandle;
	bus_addr_t addr;
	bus_size_t size;

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

	imxsnvs_attach_common(parent, self,
	    faa->faa_bst, addr, size, 0, 0);
}