1/*	$NetBSD: obs266_machdep.c,v 1.27 2021/08/03 09:25:44 rin Exp $	*/
2/*	Original: md_machdep.c,v 1.3 2005/01/24 18:47:37 shige Exp $	*/
3
4/*
5 * Copyright 2001, 2002 Wasabi Systems, Inc.
6 * All rights reserved.
7 *
8 * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc.
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 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *      This product includes software developed for the NetBSD Project by
21 *      Wasabi Systems, Inc.
22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
23 *    or promote products derived from this software without specific prior
24 *    written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39/*
40 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
41 * Copyright (C) 1995, 1996 TooLs GmbH.
42 * All rights reserved.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 *    notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 *    notice, this list of conditions and the following disclaimer in the
51 *    documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 *    must display the following acknowledgement:
54 *	This product includes software developed by TooLs GmbH.
55 * 4. The name of TooLs GmbH may not be used to endorse or promote products
56 *    derived from this software without specific prior written permission.
57 *
58 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
62 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
63 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
64 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
65 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
66 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
67 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68 */
69
70#include <sys/cdefs.h>
71__KERNEL_RCSID(0, "$NetBSD: obs266_machdep.c,v 1.27 2021/08/03 09:25:44 rin Exp $");
72
73#include "opt_ddb.h"
74
75#include <sys/param.h>
76#include <sys/bus.h>
77#include <sys/device.h>
78#include <sys/kernel.h>
79#include <sys/module.h>
80#include <sys/reboot.h>
81#include <sys/systm.h>
82
83#include <machine/obs266.h>
84
85#include <powerpc/spr.h>
86#include <powerpc/ibm4xx/spr.h>
87
88#include <powerpc/ibm4xx/cpu.h>
89#include <powerpc/ibm4xx/dcr4xx.h>
90#include <powerpc/ibm4xx/ibm405gp.h>
91#include <powerpc/ibm4xx/openbios.h>
92#include <powerpc/ibm4xx/tlb.h>
93
94#include <powerpc/ibm4xx/pci_machdep.h>
95#include <dev/pci/pciconf.h>
96#include <dev/pci/pcivar.h>
97
98#include "com.h"
99#if (NCOM > 0)
100#include <sys/termios.h>
101#include <powerpc/ibm4xx/dev/comopbvar.h>
102#include <dev/ic/comreg.h>
103
104#ifndef CONADDR
105#define CONADDR		IBM405GP_UART0_BASE
106#endif
107#ifndef CONSPEED
108#define CONSPEED	B9600
109#endif
110#ifndef CONMODE
111			/* 8N1 */
112#define CONMODE		((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8)
113#endif
114#endif	/* NCOM */
115
116#define	TLB_PG_SIZE 	(16*1024*1024)
117
118void initppc(vaddr_t, vaddr_t, char *, void *);
119
120void
121initppc(vaddr_t startkernel, vaddr_t endkernel, char *args, void *info_block)
122{
123	vaddr_t va;
124	u_int memsize;
125
126	/* Setup board from OpenBIOS */
127	openbios_board_init(info_block);
128	memsize = openbios_board_memsize_get();
129
130	/* Linear map kernel memory */
131	for (va = 0; va < endkernel; va += TLB_PG_SIZE)
132		ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX);
133
134	/* Map console after RAM (see pmap_tlbmiss()) */
135	ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE,
136	    TLB_I | TLB_G);
137
138	/* Initialize IBM405GPr CPU */
139	ibm40x_memsize_init(memsize, startkernel);
140	ibm4xx_init(startkernel, endkernel, pic_ext_intr);
141
142#ifdef DEBUG
143	openbios_board_print();
144#endif
145
146#ifdef DDB
147	if (boothowto & RB_KDB)
148		Debugger();
149#endif
150}
151
152void
153consinit(void)
154{
155
156#if (NCOM > 0)
157	com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE);
158#endif
159}
160
161/*
162 * Machine dependent startup code.
163 */
164void
165cpu_startup(void)
166{
167
168	/*
169	 * cpu common startup
170	 */
171	ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board");
172
173	/*
174	 * Set up the board properties database.
175	 */
176	openbios_board_info_set();
177
178	/*
179	 * Now that we have VM, malloc()s are OK in bus_space.
180	 */
181	bus_space_mallocok();
182
183	/*
184	 * no fake mapiodev
185	 */
186	fake_mapiodev = 0;
187}
188
189int
190ibm4xx_pci_bus_maxdevs(void *v, int busno)
191{
192
193	/*
194	 * Bus number is irrelevant.  Configuration Mechanism 1 is in
195	 * use, can have devices 0-32 (i.e. the `normal' range).
196	 */
197	return 31;
198}
199
200int
201ibm4xx_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
202{
203	/*
204	 * We need to map the interrupt pin to the interrupt bit
205	 * in the UIC associated with it.
206	 *
207	 * This platform has 4 PCI devices.
208	 *
209	 # External IRQ Mappings:
210	 *  dev 1 (Ext IRQ3):	PCI Connector
211	 *  dev 2 (Ext IRQ4):	PCI Connector
212	 *  dev 3 (Ext IRQ5):	HPT IDE Controller
213	 *  dev 4 (Ext IRQ6):	Davicom Ethernet
214	 */
215	static const int irqmap[4/*device*/][4/*pin*/] = {
216		{  3,  3,  3,  3 },	/* 1: PCI Connector 1 */
217		{  4,  4,  4,  4 },	/* 2: PCI Connector 2 */
218		{  5,  5, -1, -1 },	/* 3: HPT IDE Controller */
219		{  6,  6, -1, -1 },	/* 4: Damicom Ethernet */
220	};
221
222	int pin, dev, irq;
223
224	pin = pa->pa_intrpin;
225	dev = pa->pa_device;
226        *ihp = -1;
227
228	/* if interrupt pin not used... */
229	if (pin == 0)
230		return 1;
231
232	if (pin > 4) {
233		printf("pci_intr_map: bad interrupt pin %d\n", pin);
234		return 1;
235	}
236
237	if ((dev < 1) || (dev > 4)) {
238		printf("pci_intr_map: bad device %d\n", dev);
239		return 1;
240	}
241
242
243	if ((irq = irqmap[dev - 1][pin - 1]) == -1) {
244		printf("pci_intr_map: no IRQ routing for device %d pin %d\n",
245			dev, pin);
246		return 1;
247	}
248
249	*ihp = irq + 25;
250	return 0;
251}
252
253void
254ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz,
255    int *iline)
256{
257
258	static const int ilinemap[4/*device*/] = {
259		28, 29, 30, 31
260	};
261
262	if ((dev < 1) || (dev > 4)) {
263		printf("%s: bad device %d\n", __func__, dev);
264		*iline = 0;
265		return;
266	}
267	*iline = ilinemap[dev - 1];
268}
269