1 /*        $NetBSD: gb225_slhci.c,v 1.8 2012/11/12 18:00:38 skrll Exp $ */
2 
3 /*
4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Tetsuya Isaki.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * SL811HS USB host controller for GB-225 Option board of G4250EBX.
34  */
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/device.h>
39 
40 #include <sys/bus.h>
41 #include <machine/cpu.h>
42 
43 #include <dev/usb/usb.h>
44 #include <dev/usb/usbdi.h>
45 #include <dev/usb/usbdivar.h>
46 
47 #include <dev/ic/sl811hsreg.h>
48 #include <dev/ic/sl811hsvar.h>
49 
50 #include <arch/arm/xscale/pxa2x0reg.h>
51 #include <arch/arm/xscale/pxa2x0var.h>
52 #include <arch/evbarm/g42xxeb/g42xxeb_reg.h>
53 #include <arch/evbarm/g42xxeb/g42xxeb_var.h>
54 #include <arch/evbarm/g42xxeb/gb225reg.h>
55 #include <arch/evbarm/g42xxeb/gb225var.h>
56 
57 struct slhci_opio_softc {
58           struct slhci_softc sc_sc;
59 
60           void *sc_ih;
61 };
62 
63 static int  slhci_opio_match(device_t, cfdata_t, void *);
64 static void slhci_opio_attach(device_t, device_t, void *);
65 static void slhci_opio_enable_power(void *, int);
66 static void slhci_opio_enable_intr(void *, int);
67 static int  slhci_opio_intr(void *);
68 
69 CFATTACH_DECL_NEW(slhci_opio, sizeof(struct slhci_opio_softc),
70     slhci_opio_match, slhci_opio_attach, NULL, NULL);
71 
72 #define PORTSIZE    (SL11_PORTSIZE*4)
73 
74 static int
slhci_opio_match(device_t parent,cfdata_t cf,void * aux)75 slhci_opio_match(device_t parent, cfdata_t cf, void *aux)
76 {
77           struct obio_attach_args *oba = aux;
78           bus_space_tag_t iot = &pxa2x0_a4x_bs_tag; /* Use special BS funcs */
79           bus_space_handle_t ioh;
80           struct obio_softc *bsc = device_private(device_parent(parent));
81           struct pxa2x0_softc *psc;
82           int type;
83           uint32_t reg;
84 
85           struct slhci_softc sc;
86 
87           obio_peripheral_reset(bsc, 2, 0);
88           psc = device_private(device_parent(bsc->sc_dev));
89 
90           reg = bus_space_read_4(psc->saip.sc_iot, psc->sc_memctl_ioh,
91               MEMCTL_MSC2);
92 #if 0
93           bus_space_write_4(psc->saip.sc_iot, psc->sc_memctl_ioh, MEMCTL_MSC2,xxx)
94 #endif
95 
96 
97           oba->oba_iot = iot;
98           if (oba->oba_addr == OBIOCF_ADDR_DEFAULT)
99                     oba->oba_addr = PXA2X0_CS5_START;
100           if (oba->oba_intr == OBIOCF_INTR_DEFAULT)
101                     oba->oba_intr = G4250EBX_INT_EXT2;
102 
103           if (bus_space_map(iot, oba->oba_addr, PORTSIZE, 0, &ioh))
104                     return 0;
105 
106           /* construct fake softc to call sl811hs */
107           sc.sc_iot = iot;
108           sc.sc_ioh = ioh;
109           type = sl811hs_find(&sc);
110 
111           bus_space_unmap(iot, ioh, PORTSIZE);
112 
113           return type >= 0;
114 }
115 
116 static void
slhci_opio_attach(device_t parent,device_t self,void * aux)117 slhci_opio_attach(device_t parent, device_t self, void *aux)
118 {
119           struct slhci_opio_softc *sc = device_private(self);
120           struct obio_attach_args *oba = aux;
121           struct opio_softc *psc =
122               device_private(device_parent(self));
123           struct obio_softc *bsc =
124               device_private(device_parent(psc->sc_dev));
125           bus_space_tag_t iot = oba->oba_iot;
126           bus_space_handle_t ioh;
127 
128           printf("\n");
129 
130           /* Map I/O space */
131           if (bus_space_map(iot, oba->oba_addr, PORTSIZE, 0, &ioh)) {
132                     aprint_error_dev(self, "can't map I/O space\n");
133                     return;
134           }
135 
136           /* Initialize sc */
137           sc->sc_sc.sc_iot = iot;
138           sc->sc_sc.sc_ioh = ioh;
139           sc->sc_sc.sc_dmat = &pxa2x0_bus_dma_tag;          /* XXX */
140           sc->sc_sc.sc_enable_power = slhci_opio_enable_power;
141           sc->sc_sc.sc_enable_intr  = slhci_opio_enable_intr;
142           sc->sc_sc.sc_arg = sc;
143 
144           /* Establish the interrupt handler */
145           sc->sc_ih = obio_intr_establish(bsc, oba->oba_intr, IPL_BIO,
146               IST_LEVEL_HIGH, slhci_opio_intr, sc);
147           if( sc->sc_ih == NULL) {
148                     aprint_error_dev(self, "can't establish interrupt\n");
149                     return;
150           }
151 
152 #if 0
153           /* Reset controller */
154           obio_peripheral_reset(bsc, 2, 1);
155           delay(100);
156           obio_peripheral_reset(bsc, 2, 0);
157           delay(40000);
158 #endif
159 
160           bus_space_write_1(iot, ioh, SL11_IDX_ADDR, SL11_CTRL);
161           bus_space_write_1(iot, ioh, SL11_IDX_DATA, 0x01);
162 
163           /* Attach SL811HS/T */
164           if (slhci_attach(&sc->sc_sc, self))
165                     return;
166 }
167 
168 static void
slhci_opio_enable_power(void * arg,int mode)169 slhci_opio_enable_power(void *arg, int mode)
170 {
171 #if 0
172           struct slhci_opio_softc *sc = arg;
173           bus_space_tag_t iot = sc->sc_sc.sc_iot;
174           uint8_t r;
175 
176           r = bus_space_read_1(iot, sc->sc_nch, NEREID_CTRL);
177           if (mode == POWER_ON)
178                     bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
179                               r |  NEREID_CTRL_POWER);
180           else
181                     bus_space_write_1(iot, sc->sc_nch, NEREID_CTRL,
182                               r & ~NEREID_CTRL_POWER);
183 #endif
184 }
185 
186 static void
slhci_opio_enable_intr(void * arg,int mode)187 slhci_opio_enable_intr(void *arg, int mode)
188 {
189           struct slhci_opio_softc *sc = arg;
190           struct obio_softc *bsc;
191 
192           bsc = device_private(device_parent(
193               device_parent(sc->sc_sc.sc_bus.bdev)));
194 
195           if (mode == INTR_ON)
196                     obio_intr_unmask(bsc, sc->sc_ih);
197           else
198                     obio_intr_mask(bsc, sc->sc_ih);
199 }
200 
201 static int
slhci_opio_intr(void * arg)202 slhci_opio_intr(void *arg)
203 {
204           struct slhci_opio_softc *sc = arg;
205 
206           return slhci_intr(&sc->sc_sc);
207 }
208