1/*	$NetBSD: l2cc_fdt.c,v 1.5 2021/08/07 16:18:43 thorpej Exp $	*/
2/*
3 * Copyright (c) 2018  Genetec Corporation.  All rights reserved.
4 * Written by Hashimoto Kenichi for Genetec Corporation.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
18 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD: l2cc_fdt.c,v 1.5 2021/08/07 16:18:43 thorpej Exp $");
30
31#include <sys/param.h>
32#include <sys/bus.h>
33#include <sys/device.h>
34#include <sys/intr.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/kmem.h>
38
39#include <arm/cortex/mpcore_var.h>
40
41#include <dev/fdt/fdtvar.h>
42#include <arm/fdt/arm_fdtvar.h>
43
44static int l2cc_fdt_match(device_t, cfdata_t, void *);
45static void l2cc_fdt_attach(device_t, device_t, void *);
46
47CFATTACH_DECL_NEW(l2cc_fdt, 0, l2cc_fdt_match, l2cc_fdt_attach, NULL, NULL);
48
49static const struct device_compatible_entry compat_data[] = {
50	{ .compat = "arm,pl310-cache" },
51	DEVICE_COMPAT_EOL
52};
53
54static int
55l2cc_fdt_match(device_t parent, cfdata_t cf, void *aux)
56{
57	struct fdt_attach_args * const faa = aux;
58
59	return of_compatible_match(faa->faa_phandle, compat_data);
60}
61
62static void
63l2cc_fdt_attach(device_t parent, device_t self, void *aux)
64{
65	struct fdt_attach_args * const faa = aux;
66	const int phandle = faa->faa_phandle;
67	bus_space_handle_t bsh;
68
69	bus_addr_t addr;
70	bus_size_t size;
71	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
72		aprint_error(": couldn't get distributor address\n");
73		return;
74	}
75	if (bus_space_map(faa->faa_bst, addr, size, 0, &bsh)) {
76		aprint_error(": couldn't map registers\n");
77		return;
78	}
79
80	aprint_naive("\n");
81	aprint_normal("\n");
82
83	struct mpcore_attach_args mpcaa = {
84		.mpcaa_name = "arml2cc",
85		.mpcaa_memt = faa->faa_bst,
86		.mpcaa_memh = bsh,
87		.mpcaa_off1 = 0,
88		.mpcaa_off2 = 0,
89	};
90
91	config_found(self, &mpcaa, NULL, CFARGS_NONE);
92}
93