1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/* $OpenBSD: siop_sgc.c,v 1.3 2024/05/22 14:25:47 jsg Exp $ */
/*
* Copyright (c) 2007 Mark Kettenis
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>
#include <machine/autoconf.h>
#include <machine/bus.h>
#include <machine/iomod.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/ic/siopreg.h>
#include <dev/ic/siopvar_common.h>
#include <dev/ic/siopvar.h>
#include <hppa/dev/cpudevs.h>
#define IO_II_INTEN 0x20000000
#define IO_II_PACKEN 0x10000000
#define IO_II_PREFETCHEN 0x08000000
int siop_sgc_match(struct device *, void *, void *);
void siop_sgc_attach(struct device *, struct device *, void *);
void siop_sgc_reset(struct siop_common_softc *);
u_int8_t siop_sgc_r1(void *, bus_space_handle_t, bus_size_t);
u_int16_t siop_sgc_r2(void *, bus_space_handle_t, bus_size_t);
void siop_sgc_w1(void *, bus_space_handle_t, bus_size_t, u_int8_t);
void siop_sgc_w2(void *, bus_space_handle_t, bus_size_t, u_int16_t);
struct siop_sgc_softc {
struct siop_softc sc_siop;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
struct hppa_bus_space_tag sc_bustag;
};
const struct cfattach siop_gedoens_ca = {
sizeof(struct siop_sgc_softc), siop_sgc_match, siop_sgc_attach
};
int
siop_sgc_match(struct device *parent, void *match, void *aux)
{
struct confargs *ca = aux;
if (ca->ca_type.iodc_type != HPPA_TYPE_ADMA ||
ca->ca_type.iodc_sv_model != HPPA_ADMA_FWSCSI)
return 0;
return 1;
}
void
siop_sgc_attach(struct device *parent, struct device *self, void *aux)
{
struct siop_sgc_softc *sc = (struct siop_sgc_softc *)self;
struct confargs *ca = aux;
volatile struct iomod *regs;
sc->sc_iot = ca->ca_iot;
if (bus_space_map(sc->sc_iot, ca->ca_hpa,
IOMOD_HPASIZE, 0, &sc->sc_ioh)) {
printf(": cannot map io space\n");
return;
}
sc->sc_bustag = *sc->sc_iot;
sc->sc_bustag.hbt_r1 = siop_sgc_r1;
sc->sc_bustag.hbt_r2 = siop_sgc_r2;
sc->sc_bustag.hbt_w1 = siop_sgc_w1;
sc->sc_bustag.hbt_w2 = siop_sgc_w2;
sc->sc_siop.sc_c.features = SF_CHIP_PF | SF_CHIP_BE | SF_BUS_WIDE;
sc->sc_siop.sc_c.maxburst = 4;
sc->sc_siop.sc_c.maxoff = 8;
sc->sc_siop.sc_c.clock_div = 3;
sc->sc_siop.sc_c.clock_period = 250;
sc->sc_siop.sc_c.ram_size = 0;
sc->sc_siop.sc_c.sc_reset = siop_sgc_reset;
sc->sc_siop.sc_c.sc_dmat = ca->ca_dmatag;
sc->sc_siop.sc_c.sc_rt = &sc->sc_bustag;
bus_space_subregion(sc->sc_iot, sc->sc_ioh, IOMOD_DEVOFFSET,
IOMOD_HPASIZE - IOMOD_DEVOFFSET, &sc->sc_siop.sc_c.sc_rh);
regs = bus_space_vaddr(sc->sc_iot, sc->sc_ioh);
regs->io_command = CMD_RESET;
while ((regs->io_status & IO_ERR_MEM_RY) == 0)
delay(100);
regs->io_ii_rw = IO_II_PACKEN | IO_II_PREFETCHEN;
siop_sgc_reset(&sc->sc_siop.sc_c);
regs->io_eim = cpu_gethpa(0) | (31 - ca->ca_irq);
regs->io_ii_rw |= IO_II_INTEN;
cpu_intr_establish(IPL_BIO, ca->ca_irq, siop_intr, sc,
sc->sc_siop.sc_c.sc_dev.dv_xname);
printf(": NCR53C720 rev %d\n", bus_space_read_1(sc->sc_siop.sc_c.sc_rt,
sc->sc_siop.sc_c.sc_rh, SIOP_CTEST3) >> 4);
siop_attach(&sc->sc_siop);
}
void
siop_sgc_reset(struct siop_common_softc *sc)
{
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_DCNTL, DCNTL_EA);
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST0, CTEST0_EHP);
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_CTEST4, CTEST4_MUX);
bus_space_write_1(sc->sc_rt, sc->sc_rh, SIOP_STIME0,
(0xc << STIME0_SEL_SHIFT));
}
u_int8_t
siop_sgc_r1(void *v, bus_space_handle_t h, bus_size_t o)
{
return *(volatile u_int8_t *)(h + (o ^ 3));
}
u_int16_t
siop_sgc_r2(void *v, bus_space_handle_t h, bus_size_t o)
{
if (o == SIOP_SIST0) {
u_int16_t reg;
reg = siop_sgc_r1(v, h, SIOP_SIST0);
reg |= siop_sgc_r1(v, h, SIOP_SIST1) << 8;
return reg;
}
return *(volatile u_int16_t *)(h + (o ^ 2));
}
void
siop_sgc_w1(void *v, bus_space_handle_t h, bus_size_t o, u_int8_t vv)
{
*(volatile u_int8_t *)(h + (o ^ 3)) = vv;
}
void
siop_sgc_w2(void *v, bus_space_handle_t h, bus_size_t o, u_int16_t vv)
{
*(volatile u_int16_t *)(h + (o ^ 2)) = vv;
}
|
