1 /* $NetBSD: zynq7000_usb.c,v 1.3 2022/10/25 22:52:48 jmcneill Exp $ */
2 /*-
3 * Copyright (c) 2015 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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
16 * ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS
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: zynq7000_usb.c,v 1.3 2022/10/25 22:52:48 jmcneill Exp $");
30
31 #include "opt_soc.h"
32
33 #include <sys/param.h>
34 #include <sys/bus.h>
35 #include <sys/conf.h>
36 #include <sys/device.h>
37 #include <sys/intr.h>
38 #include <sys/kernel.h>
39 #include <sys/systm.h>
40
41 #include <dev/usb/usb.h>
42 #include <dev/usb/usbdi.h>
43 #include <dev/usb/usbdivar.h>
44 #include <dev/usb/usb_mem.h>
45
46 #include <dev/usb/ehcireg.h>
47 #include <dev/usb/ehcivar.h>
48
49 #include <arm/xilinx/zynq_usbvar.h>
50 #include <arm/xilinx/zynq_usbreg.h>
51
52 #include <dev/fdt/fdtvar.h>
53
54 static const struct device_compatible_entry compat_data[] = {
55 { .compat = "xlnx,zynq-usb-2.20a" },
56 DEVICE_COMPAT_EOL
57 };
58
59 static int zynqusb_match(device_t, struct cfdata *, void *);
60 static void zynqusb_attach(device_t, device_t, void *);
61
62 /* attach structures */
63 CFATTACH_DECL_NEW(zynqusb, sizeof(struct zynqehci_softc),
64 zynqusb_match, zynqusb_attach, NULL, NULL);
65
66 static int
zynqusb_match(device_t parent,struct cfdata * cf,void * aux)67 zynqusb_match(device_t parent, struct cfdata *cf, void *aux)
68 {
69 struct fdt_attach_args * const faa = aux;
70
71 return of_compatible_match(faa->faa_phandle, compat_data);
72 }
73
74 static void
zynqusb_attach(device_t parent,device_t self,void * aux)75 zynqusb_attach(device_t parent, device_t self, void *aux)
76 {
77 struct fdt_attach_args * faa = aux;
78 char intrstr[128];
79 const int phandle = faa->faa_phandle;
80 struct zynqehci_softc *sc = device_private(self);
81 ehci_softc_t *hsc = &sc->sc_hsc;
82 bus_addr_t addr;
83 bus_size_t size;
84
85 if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
86 aprint_error(": couldn't get registers\n");
87 return;
88 }
89
90 if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
91 aprint_error(": failed to decode interrupt\n");
92 return;
93 }
94
95 if (fdtbus_intr_establish(phandle, 0, IPL_USB, IST_LEVEL, ehci_intr,
96 hsc) == NULL) {
97 aprint_error("failed to establish interrupt on %s\n",
98 intrstr);
99 return;
100 }
101
102 zynqusb_attach_common(parent, self, faa->faa_bst, faa->faa_dmat,
103 addr, size, 0, ZYNQUSBC_IF_ULPI, ZYNQUSB_HOST);
104 aprint_normal_dev(self, "interrupting on %s\n", intrstr);
105 }
106