1 /* $NetBSD: hd64461.c,v 1.26 2021/08/07 16:18:54 thorpej Exp $ */
2
3 /*-
4 * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
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 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: hd64461.c,v 1.26 2021/08/07 16:18:54 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38 #include <sys/reboot.h>
39 #include <sys/bus.h>
40
41 #include <machine/intr.h>
42 #include <machine/debug.h>
43
44 #include <hpcsh/dev/hd64461/hd64461reg.h>
45 #include <hpcsh/dev/hd64461/hd64461intcreg.h>
46 #include <hpcsh/dev/hd64461/hd64461var.h>
47
48 /* HD64461 modules. INTC, TIMER, POWER modules are included in hd64461if */
49 STATIC const struct hd64461_module {
50 const char *name;
51 } hd64461_modules[] = {
52 [HD64461_MODULE_VIDEO] = { "hd64461video" },
53 [HD64461_MODULE_PCMCIA] = { "hd64461pcmcia" },
54 [HD64461_MODULE_UART] = { "hd64461uart" },
55 #if 0 /* there are no drivers, so don't bother */
56 [HD64461_MODULE_GPIO] = { "hd64461gpio" },
57 [HD64461_MODULE_AFE] = { "hd64461afe" },
58 [HD64461_MODULE_FIR] = { "hd64461fir" },
59 #endif
60 };
61
62 int use_afeck = 0;
63
64 STATIC int hd64461_match(device_t, cfdata_t, void *);
65 STATIC void hd64461_attach(device_t, device_t, void *);
66 STATIC int hd64461_print(void *, const char *);
67 #ifdef DEBUG
68 STATIC void hd64461_info(void);
69 #endif
70
71 CFATTACH_DECL_NEW(hd64461if, 0,
72 hd64461_match, hd64461_attach, NULL, NULL);
73
74 STATIC int
hd64461_match(device_t parent,cfdata_t cf,void * aux)75 hd64461_match(device_t parent, cfdata_t cf, void *aux)
76 {
77
78 switch (cpu_product) {
79 case CPU_PRODUCT_7709:
80 case CPU_PRODUCT_7709A:
81 break;
82
83 default:
84 return (0); /* HD64461 only supports SH7709 interface */
85 }
86
87 if (strcmp("hd64461if", cf->cf_name) != 0)
88 return (0);
89
90 return (1);
91 }
92
93 STATIC void
hd64461_attach(device_t parent,device_t self,void * aux)94 hd64461_attach(device_t parent, device_t self, void *aux)
95 {
96 struct hd64461_attach_args ha;
97 const struct hd64461_module *module;
98 uint16_t stbcr;
99 int i;
100
101 aprint_naive("\n");
102 aprint_normal("\n");
103 #ifdef DEBUG
104 if (bootverbose)
105 hd64461_info();
106 #endif
107
108 stbcr = hd64461_reg_read_2(HD64461_SYSSTBCR_REG16);
109
110 /* we don't use TIMER */
111 stbcr |= HD64461_SYSSTBCR_STM0ST | HD64461_SYSSTBCR_STM1ST;
112
113 /* no drivers for FIR and AFE */
114 stbcr |= HD64461_SYSSTBCR_SIRST | HD64461_SYSSTBCR_SAFEST;
115
116 if (!use_afeck)
117 stbcr |=
118 HD64461_SYSSTBCR_SAFECKE_IST | HD64461_SYSSTBCR_SAFECKE_OST;
119
120 hd64461_reg_write_2(HD64461_SYSSTBCR_REG16, stbcr);
121
122
123 /* Attach all sub modules */
124 for (i = 0; i < __arraycount(hd64461_modules); ++i) {
125 module = &hd64461_modules[i];
126 if (module->name == NULL)
127 continue;
128 ha.ha_module_id = i;
129 config_found(self, &ha, hd64461_print, CFARGS_NONE);
130 }
131
132 /* XXX: TODO */
133 if (!pmf_device_register(self, NULL, NULL))
134 aprint_error_dev(self, "unable to establish power handler\n");
135 }
136
137 STATIC int
hd64461_print(void * aux,const char * pnp)138 hd64461_print(void *aux, const char *pnp)
139 {
140 struct hd64461_attach_args *ha = aux;
141
142 if (pnp)
143 aprint_normal("%s at %s",
144 hd64461_modules[ha->ha_module_id].name, pnp);
145
146 return (UNCONF);
147 }
148
149
150 #ifdef DEBUG
151
152 STATIC void
hd64461_info(void)153 hd64461_info(void)
154 {
155 uint16_t r16;
156
157 dbg_banner_function();
158
159 /*
160 * System
161 */
162 printf("STBCR (Standby Control Register)\n");
163 r16 = hd64461_reg_read_2(HD64461_SYSSTBCR_REG16);
164 #define DBG_BITMASK_PRINT(r, m) dbg_bitmask_print(r, HD64461_SYSSTBCR_##m, #m)
165 DBG_BITMASK_PRINT(r16, CKIO_STBY);
166 DBG_BITMASK_PRINT(r16, SAFECKE_IST);
167 DBG_BITMASK_PRINT(r16, SLCKE_IST);
168 DBG_BITMASK_PRINT(r16, SAFECKE_OST);
169 DBG_BITMASK_PRINT(r16, SLCKE_OST);
170 DBG_BITMASK_PRINT(r16, SMIAST);
171 DBG_BITMASK_PRINT(r16, SLCDST);
172 DBG_BITMASK_PRINT(r16, SPC0ST);
173 DBG_BITMASK_PRINT(r16, SPC1ST);
174 DBG_BITMASK_PRINT(r16, SAFEST);
175 DBG_BITMASK_PRINT(r16, STM0ST);
176 DBG_BITMASK_PRINT(r16, STM1ST);
177 DBG_BITMASK_PRINT(r16, SIRST);
178 DBG_BITMASK_PRINT(r16, SURTSD);
179 #undef DBG_BITMASK_PRINT
180 printf("\n");
181
182 printf("SYSCR (System Configuration Register)\n");
183 r16 = hd64461_reg_read_2(HD64461_SYSSYSCR_REG16);
184 #define DBG_BITMASK_PRINT(r, m) dbg_bitmask_print(r, HD64461_SYSSYSCR_##m, #m)
185 DBG_BITMASK_PRINT(r16, SCPU_BUS_IGAT);
186 DBG_BITMASK_PRINT(r16, SPTA_IR);
187 DBG_BITMASK_PRINT(r16, SPTA_TM);
188 DBG_BITMASK_PRINT(r16, SPTB_UR);
189 DBG_BITMASK_PRINT(r16, WAIT_CTL_SEL);
190 DBG_BITMASK_PRINT(r16, SMODE1);
191 DBG_BITMASK_PRINT(r16, SMODE0);
192 #undef DBG_BITMASK_PRINT
193 printf("\n");
194
195 printf("SCPUCR (CPU Data Bus Control Register)\n");
196 r16 = hd64461_reg_read_2(HD64461_SYSSCPUCR_REG16);
197 #define DBG_BITMASK_PRINT(r, m) dbg_bitmask_print(r, HD64461_SYSSCPUCR_##m, #m)
198 DBG_BITMASK_PRINT(r16, SPDSTOF);
199 DBG_BITMASK_PRINT(r16, SPDSTIG);
200 DBG_BITMASK_PRINT(r16, SPCSTOF);
201 DBG_BITMASK_PRINT(r16, SPCSTIG);
202 DBG_BITMASK_PRINT(r16, SPBSTOF);
203 DBG_BITMASK_PRINT(r16, SPBSTIG);
204 DBG_BITMASK_PRINT(r16, SPASTOF);
205 DBG_BITMASK_PRINT(r16, SPASTIG);
206 DBG_BITMASK_PRINT(r16, SLCDSTIG);
207 DBG_BITMASK_PRINT(r16, SCPU_CS56_EP);
208 DBG_BITMASK_PRINT(r16, SCPU_CMD_EP);
209 DBG_BITMASK_PRINT(r16, SCPU_ADDR_EP);
210 DBG_BITMASK_PRINT(r16, SCPDPU);
211 DBG_BITMASK_PRINT(r16, SCPU_A2319_EP);
212 #undef DBG_BITMASK_PRINT
213 printf("\n");
214
215 printf("\n");
216 /*
217 * INTC
218 */
219 printf("NIRR (Interrupt Request Register)\n");
220 r16 = hd64461_reg_read_2(HD64461_INTCNIRR_REG16);
221 #define DBG_BITMASK_PRINT(r, m) dbg_bitmask_print(r, HD64461_INTCNIRR_##m, #m)
222 DBG_BITMASK_PRINT(r16, PCC0R);
223 DBG_BITMASK_PRINT(r16, PCC1R);
224 DBG_BITMASK_PRINT(r16, AFER);
225 DBG_BITMASK_PRINT(r16, GPIOR);
226 DBG_BITMASK_PRINT(r16, TMU0R);
227 DBG_BITMASK_PRINT(r16, TMU1R);
228 DBG_BITMASK_PRINT(r16, IRDAR);
229 DBG_BITMASK_PRINT(r16, UARTR);
230 #undef DBG_BITMASK_PRINT
231 printf("\n");
232
233 printf("NIMR (Interrupt Mask Register)\n");
234 r16 = hd64461_reg_read_2(HD64461_INTCNIMR_REG16);
235 #define DBG_BITMASK_PRINT(r, m) dbg_bitmask_print(r, HD64461_INTCNIMR_##m, #m)
236 DBG_BITMASK_PRINT(r16, PCC0M);
237 DBG_BITMASK_PRINT(r16, PCC1M);
238 DBG_BITMASK_PRINT(r16, AFEM);
239 DBG_BITMASK_PRINT(r16, GPIOM);
240 DBG_BITMASK_PRINT(r16, TMU0M);
241 DBG_BITMASK_PRINT(r16, TMU1M);
242 DBG_BITMASK_PRINT(r16, IRDAM);
243 DBG_BITMASK_PRINT(r16, UARTM);
244 #undef DBG_BITMASK_PRINT
245 printf("\n");
246
247 dbg_banner_line();
248 }
249 #endif /* DEBUG */
250