1 /* $OpenBSD: omusbtll.c,v 1.6 2024/06/26 01:40:49 jsg Exp $ */
2 /*
3 * Copyright (c) 2010 Dale Rahn <drahn@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/param.h>
19 #include <sys/systm.h>
20 #include <sys/device.h>
21 #include <machine/bus.h>
22 #include <armv7/armv7/armv7var.h>
23 #include <armv7/omap/prcmvar.h>
24
25 /* registers */
26 #define USBTLL_REVISION 0x0000
27 #define USBTLL_SYSCONFIG 0x0010
28 #define USBTLL_SYSSTATUS 0x0014
29 #define USBTLL_IRQSTATUS 0x0018
30 #define USBTLL_IRQENABLE 0x001C
31 #define USBTLL_SHARED_CONF 0x0030
32 #define USBTLL_SHARED_CONF_USB_90D_DDR_EN (1<<6)
33 #define USBTLL_SHARED_CONF_USB_180D_SDR_EN (1<<5)
34 #define USBTLL_SHARED_CONF_USB_DIVRATIO_SH 2
35 #define USBTLL_SHARED_CONF_FCLK_REQ (1<<1)
36 #define USBTLL_SHARED_CONF_FCLK_IS_ON (1<<0)
37
38 #define USBTLL_CHANNEL_CONF_(i) (0x0040 + (0x04 * (i)))
39 #define USBTLL_CHANNEL_CONF_FSLSLINESTATE_SH 28
40 #define USBTLL_CHANNEL_CONF_FSLSMODE_SH 24
41 #define USBTLL_CHANNEL_CONF_TESTTXSE0 (1<<20)
42 #define USBTLL_CHANNEL_CONF_TESTTXDAT (1<<19)
43 #define USBTLL_CHANNEL_CONF_TESTTXEN (1<<18)
44 #define USBTLL_CHANNEL_CONF_TESTEN (1<<17)
45 #define USBTLL_CHANNEL_CONF_DRVVBUS (1<<16)
46 #define USBTLL_CHANNEL_CONF_CHRGVBUS (1<<15)
47 #define USBTLL_CHANNEL_CONF_ULPINOBITSTUFF (1<<11)
48 #define USBTLL_CHANNEL_CONF_ULPIAUTOIDLE (1<<10)
49 #define USBTLL_CHANNEL_CONF_UTMIAUTOIDLE (1<<9)
50 #define USBTLL_CHANNEL_CONF_ULPIDDRMODE (1<<8)
51 #define USBTLL_CHANNEL_CONF_LPIOUTCLKMODE (1<<7)
52 #define USBTLL_CHANNEL_CONF_TLLFULLSPEED (1<<6)
53 #define USBTLL_CHANNEL_CONF_TLLCONNECT (1<<5)
54 #define USBTLL_CHANNEL_CONF_TLLATTACH (1<<4)
55 #define USBTLL_CHANNEL_CONF_UTMIISADEV (1<<3)
56 #define USBTLL_CHANNEL_CONF_CHANMODE_SH 1
57 #define USBTLL_CHANNEL_CONF_CHANEN (1<<0)
58
59 /*
60 ULPI_VENDOR_ID_LO_(i) (0x0800 + (0x100 * (i)))
61 ULPI_VENDOR_ID_HI_(i) (0x0801 + (0x100 * (i)))
62 ULPI_PRODUCT_ID_LO_(i) (0x0802 + (0x100 * (i)))
63 ULPI_PRODUCT_ID_HI_(i) (0x0803 + (0x100 * (i)))
64 ULPI_FUNCTION_CTRL_(i) (0x0804 + (0x100 * (i)))
65 ULPI_FUNCTION_CTRL_SET_(i) (0x0805 + (0x100 * (i)))
66 ULPI_FUNCTION_CTRL_CLR_(i) (0x0806 + (0x100 * (i)))
67 ULPI_INTERFACE_CTRL_(i) (0x0807 + (0x100 * (i)))
68 ULPI_INTERFACE_CTRL_SET_(i) (0x0808 + (0x100 * (i)))
69 ULPI_INTERFACE_CTRL_CLR_(i) (0x0809 + (0x100 * (i)))
70 ULPI_OTG_CTRL_(i) (0x080A + (0x100 * (i)))
71 ULPI_OTG_CTRL_SET_(i) (0x080B + (0x100 * (i)))
72 ULPI_OTG_CTRL_CLR_(i) (0x080C + (0x100 * (i)))
73 ULPI_USB_INT_EN_RISE_(i) (0x080D + (0x100 * (i)))
74 ULPI_USB_INT_EN_RISE_SET_(i) (0x080E + (0x100 * (i)))
75 ULPI_USB_INT_EN_RISE_CLR_(i) (0x080F + (0x100 * (i)))
76 ULPI_USB_INT_EN_FALL_(i) (0x0810 + (0x100 * (i)))
77 ULPI_USB_INT_EN_FALL_SET_(i) (0x0811 + (0x100 * (i)))
78 ULPI_USB_INT_EN_FALL_CLR_(i) (0x0812 + (0x100 * (i)))
79 ULPI_USB_INT_STATUS_(i) (0x0813 + (0x100 * (i)))
80 ULPI_USB_INT_LATCH_(i) (0x0814 + (0x100 * (i)))
81 */
82
83 struct omusbtll_softc {
84 struct device sc_dev;
85 bus_space_tag_t sc_iot;
86 bus_space_handle_t sc_ioh;
87 };
88
89 void omusbtll_attach(struct device *parent, struct device *self, void *args);
90 void omusbtll_init(uint32_t channel_mask);
91
92 const struct cfattach omusbtll_ca = {
93 sizeof (struct omusbtll_softc), NULL, omusbtll_attach
94 };
95
96 struct cfdriver omusbtll_cd = {
97 NULL, "omusbtll", DV_DULL
98 };
99
100 struct omusbtll_softc *omusbtll_sc;
101 void
omusbtll_attach(struct device * parent,struct device * self,void * args)102 omusbtll_attach(struct device *parent, struct device *self, void *args)
103 {
104 struct omusbtll_softc *sc = (struct omusbtll_softc *) self;
105 struct armv7_attach_args *aa = args;
106 u_int32_t rev;
107
108 sc->sc_iot = aa->aa_iot;
109 if (bus_space_map(sc->sc_iot, aa->aa_dev->mem[0].addr,
110 aa->aa_dev->mem[0].size, 0, &sc->sc_ioh)) {
111 printf("%s: bus_space_map failed!\n", __func__);
112 return;
113 }
114
115 #if 0
116 prcm_enablemodule(PRCM_USBHOST1);
117 prcm_enablemodule(PRCM_USBHOST2);
118 #endif
119 prcm_enablemodule(PRCM_USBTLL);
120
121 delay(10000);
122
123 //return;
124 #if 1
125 rev = bus_space_read_1(sc->sc_iot, sc->sc_ioh, USBTLL_SYSCONFIG);
126
127 printf(" rev %d.%d\n", rev >> 4 & 0xf, rev & 0xf);
128 #endif
129
130 omusbtll_sc = sc;
131
132 omusbtll_init(0x3);
133 }
134
135 void
omusbtll_init(uint32_t channel_mask)136 omusbtll_init(uint32_t channel_mask)
137 {
138 int i;
139 uint32_t val;
140 /* global reacharound */
141 struct omusbtll_softc *sc = omusbtll_sc;
142
143 for(i = 0; i < 3; i++) {
144 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
145 USBTLL_CHANNEL_CONF_(i));
146 val &= ~(USBTLL_CHANNEL_CONF_ULPINOBITSTUFF |
147 USBTLL_CHANNEL_CONF_ULPIAUTOIDLE |
148 USBTLL_CHANNEL_CONF_ULPIDDRMODE);
149 bus_space_write_4(sc->sc_iot, sc->sc_ioh,
150 USBTLL_CHANNEL_CONF_(i), val);
151 }
152
153 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, USBTLL_SHARED_CONF);
154 val |= (USBTLL_SHARED_CONF_USB_180D_SDR_EN |
155 (1 << USBTLL_SHARED_CONF_USB_DIVRATIO_SH) |
156 USBTLL_SHARED_CONF_FCLK_IS_ON);
157 val &= ~(USBTLL_SHARED_CONF_USB_90D_DDR_EN);
158 bus_space_write_4(sc->sc_iot, sc->sc_ioh, USBTLL_SHARED_CONF, val);
159
160 for (i = 0; i < 3; i++) {
161 if (channel_mask & (1<<i)) {
162 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
163 USBTLL_CHANNEL_CONF_(i));
164
165 val |= USBTLL_CHANNEL_CONF_CHANEN;
166 bus_space_write_4(sc->sc_iot, sc->sc_ioh,
167 USBTLL_CHANNEL_CONF_(i), val);
168 printf("usbtll enabling %d\n", i);
169 }
170 }
171 }
172