1 /* $OpenBSD: octehci.c,v 1.3 2017/07/25 11:01:28 jmatthew Exp $ */
2
3 /*
4 * Copyright (c) 2015 Jonathan Matthew <jmatthew@openbsd.org>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <sys/param.h>
20 #include <sys/systm.h>
21 #include <sys/device.h>
22
23 #include <machine/intr.h>
24 #include <machine/bus.h>
25 #include <machine/octeonreg.h>
26 #include <machine/octeonvar.h>
27
28 #include <octeon/dev/octuctlreg.h>
29 #include <octeon/dev/octuctlvar.h>
30
31 #include <dev/usb/usb.h>
32 #include <dev/usb/usbdi.h>
33 #include <dev/usb/usbdivar.h>
34
35 #include <sys/rwlock.h>
36 #include <dev/usb/ehcireg.h>
37 #include <dev/usb/ehcivar.h>
38
39 struct octehci_softc {
40 struct ehci_softc sc_ehci;
41
42 void *sc_ih;
43 };
44
45 int octehci_match(struct device *, void *, void *);
46 void octehci_attach(struct device *, struct device *, void *);
47
48 const struct cfattach octehci_ca = {
49 sizeof(struct octehci_softc), octehci_match, octehci_attach,
50 };
51
52 struct cfdriver octehci_cd = {
53 NULL, "ehci", DV_DULL
54 };
55
56 int
octehci_match(struct device * parent,void * match,void * aux)57 octehci_match(struct device *parent, void *match, void *aux)
58 {
59 struct octuctl_attach_args *aa = aux;
60 return (OF_is_compatible(aa->aa_node, "cavium,octeon-6335-ehci"));
61 }
62
63 void
octehci_attach(struct device * parent,struct device * self,void * aux)64 octehci_attach(struct device *parent, struct device *self, void *aux)
65 {
66 struct octehci_softc *sc = (struct octehci_softc *)self;
67 struct octuctl_attach_args *aa = aux;
68 uint64_t port_ctl;
69 int rc;
70 int s;
71
72 sc->sc_ehci.iot = aa->aa_bust;
73 sc->sc_ehci.sc_bus.pipe_size = sizeof(struct usbd_pipe);
74 sc->sc_ehci.sc_bus.dmatag = aa->aa_dmat;
75
76 rc = bus_space_map(sc->sc_ehci.iot, aa->aa_reg.addr, aa->aa_reg.size,
77 0, &sc->sc_ehci.ioh);
78 KASSERT(rc == 0);
79
80 port_ctl = bus_space_read_8(aa->aa_octuctl_bust, aa->aa_ioh,
81 UCTL_EHCI_CTL);
82 port_ctl &= ~UCTL_EHCI_CTL_L2C_ADDR_MSB_MASK;
83 port_ctl |= (1 << UCTL_EHCI_CTL_L2C_DESC_EMOD_SHIFT);
84 port_ctl |= (1 << UCTL_EHCI_CTL_L2C_BUFF_EMOD_SHIFT);
85 port_ctl |= UCTL_EHCI_CTL_EHCI_64B_ADDR_EN;
86 bus_space_write_8(aa->aa_octuctl_bust, aa->aa_ioh, UCTL_EHCI_CTL,
87 port_ctl);
88
89 s = splhardusb();
90 sc->sc_ehci.sc_offs = EREAD1(&sc->sc_ehci, EHCI_CAPLENGTH);
91 EOWRITE2(&sc->sc_ehci, EHCI_USBINTR, 0);
92
93 sc->sc_ehci.sc_id_vendor = 0;
94 strlcpy(sc->sc_ehci.sc_vendor, "Octeon", sizeof(sc->sc_ehci.sc_vendor));
95
96 sc->sc_ih = octeon_intr_establish(CIU_INT_USB, IPL_USB | IPL_MPSAFE,
97 ehci_intr, (void *)&sc->sc_ehci, sc->sc_ehci.sc_bus.bdev.dv_xname);
98 KASSERT(sc->sc_ih != NULL);
99
100 rc = ehci_init(&sc->sc_ehci);
101 if (rc != USBD_NORMAL_COMPLETION) {
102 printf(": init failed, error=%d\n", rc);
103 octeon_intr_disestablish(sc->sc_ih);
104 bus_space_unmap(sc->sc_ehci.iot, sc->sc_ehci.ioh,
105 aa->aa_reg.size);
106 splx(s);
107 return;
108 }
109
110 printf("\n");
111 if (rc == 0)
112 config_found(self, &sc->sc_ehci.sc_bus, usbctlprint);
113 splx(s);
114 }
115