2 * Copyright (c) 2017 Ian Sutton <ian@ce.gl>
3 * Copyright (c) 2013 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/param.h>
28 #include <sys/systm.h>
29 #include <sys/device.h>
30 #include <sys/kernel.h>
32 #include <dev/ofw/openfirm.h>
33 #include <dev/ofw/fdt.h>
35 #include <machine/fdt.h>
37 #include <armv7/omap/prcmvar.h>
38 #include <armv7/omap/sitara_cm.h>
40 #include <arm/simplebus/simplebusvar.h>
42 #define DEVNAME(_s) ((_s)->sc_dev.dv_xname)
44 #define AMMUSB_DEBUG /* XXX */
47 int ammusb_debug
= 20;
48 #define DPRINTF(n,s) do { if ((n) <= ammusb_debug) printf s; } while (0)
50 #define DPRINTF(n,s) do {}
53 #define HREAD4(sc, reg) \
54 (bus_space_read_4((sc)->sc_iot, (sc)->sc_ioh, (reg)))
55 #define HWRITE4(sc, reg, val) \
56 bus_space_write_4((sc)->sc_iot, (sc)->sc_ioh, (reg), (val))
57 #define HSET4(sc, reg, bits) \
58 HWRITE4((sc), (reg), HREAD4((sc), (reg)) | (bits))
59 #define HCLR4(sc, reg, bits) \
60 HWRITE4((sc), (reg), HREAD4((sc), (reg)) & ~(bits))
64 bus_space_tag_t sc_iot
;
65 bus_space_handle_t sc_ioh
;
70 int ammusb_match(struct device
*, void *, void *);
71 void ammusb_attach(struct device
*, struct device
*, void *);
72 int ammusb_detach(struct device
*, int);
73 int ammusb_intr(void *);
74 void ammusb_reset(struct ammusb_softc
*);
77 void ammusb_preg(uint32_t, char *, struct ammusb_softc
*);
78 void ammusb_dumpregs(struct ammusb_softc
*);
80 /* core/iomux.c def */
81 struct cfattach ammusb_ca
= {
82 sizeof (struct ammusb_softc
), ammusb_match
, ammusb_attach
, ammusb_detach
85 struct cfdriver ammusb_cd
= {
86 NULL
, "ammusb", DV_DULL
90 ammusb_match(struct device
*parent
, void *v
, void *aux
)
92 struct fdt_attach_args
*faa
= aux
;
96 if (OF_is_compatible(faa->fa_node, "ti,am33xx-usb")) {
98 for (node = OF_child(faa->fa_node); node; node = OF_peer(node)) {
102 printf("MAYBE: %d\n", faa
->fa_node
);
103 return OF_is_compatible(faa
->fa_node
, "ti,musb-am33xx");
107 ammusb_attach(struct device
*parent
, struct device
*self
, void *args
)
109 struct ammusb_softc
*sc
= (struct ammusb_softc
*) self
;
110 struct fdt_attach_args
*faa
= args
;
114 sc
->sc_iot
= faa
->fa_iot
;
115 if (bus_space_map(sc
->sc_iot
, faa
->fa_reg
[0].addr
, faa
->fa_reg
[0].size
, 0,
117 panic("%s: bus_space_map failed!", __func__
);
119 rev
= HREAD4(sc
, 0x0);
120 printf(" rev 0x%08x\n", rev
);
121 printf("%s: phys: 0x%08llx, size: %08llx\n", DEVNAME(sc
), faa
->fa_reg
[0].addr
,
122 faa
->fa_reg
[0].size
);
126 ammusb_detach(struct device
*self
, int flags
)
132 ammusb_intr(void * arg
)