omsal400.c revision 1.4 
1/* $NetBSD: omsal400.c,v 1.4 2006/04/02 17:32:57 kiyohara Exp $ */
2
3/*-
4 * Copyright (c) 2006 Itronix Inc.
5 * Copyright (c) 2006 Shigeyuki Fukushima.
6 * All rights reserved.
7 *
8 * Written by Garrett D'Amore for Itronix Inc
9 * Written by Shigeyuki Fukushima.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above
17 *    copyright notice, this list of conditions and the following
18 *    disclaimer in the documentation and/or other materials provided
19 *    with the distribution.
20 * 3. The name of the author may not be used to endorse or promote
21 *    products derived from this software without specific prior
22 *    written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
25 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
26 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
28 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
30 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37
38#include <sys/cdefs.h>
39__KERNEL_RCSID(0, "$NetBSD: omsal400.c,v 1.4 2006/04/02 17:32:57 kiyohara Exp $");
40
41#include <sys/param.h>
42#include <machine/bus.h>
43#include <machine/locore.h>
44#include <mips/alchemy/dev/augpiovar.h>
45#include <mips/alchemy/dev/aupcmciavar.h>
46#include <evbmips/alchemy/obiovar.h>
47#include <evbmips/alchemy/board.h>
48#include <evbmips/alchemy/omsal400reg.h>
49
50#define	GET16(x)	\
51	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
52#define	PUT16(x, v)	\
53	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
54
55static void	omsal400_init(void);
56static int	omsal400_pci_intr_map(struct pci_attach_args *,
57					 pci_intr_handle_t *);
58static void	omsal400_poweroff(void);
59static void	omsal400_reboot(void);
60static bus_addr_t omsal400_slot_offset(int);
61static int omsal400_slot_irq(int, int);
62static void omsal400_slot_enable(int);
63static void omsal400_slot_disable(int);
64static int omsal400_slot_status(int);
65static const char *omsal400_slot_name(int);
66
67static const struct obiodev omsal400_devices[] = {
68	{ NULL },
69};
70
71static struct aupcmcia_machdep omsal400_pcmcia = {
72	1,      /* nslots */
73	omsal400_slot_offset,
74	omsal400_slot_irq,
75	omsal400_slot_enable,
76	omsal400_slot_disable,
77	omsal400_slot_status,
78	omsal400_slot_name,
79};
80
81static struct alchemy_board omsal400_info = {
82	"Plathome Open Micro Sever AL400/AMD Alchemy Au1550",
83	omsal400_devices,
84	omsal400_init,
85	omsal400_pci_intr_map,
86	omsal400_reboot,
87	omsal400_poweroff,
88	&omsal400_pcmcia,
89};
90
91const struct alchemy_board *
92board_info(void)
93{
94
95	return &omsal400_info;
96}
97
98void
99omsal400_init(void)
100{
101	/* uint16_t whoami; */
102
103	if (MIPS_PRID_COPTS(cpu_id) != MIPS_AU1550)
104		panic("omsal400: CPU not Au1550");
105
106#if 0 /* XXX: TODO borad identification */
107	/* check the whoami register for a match */
108	whoami = GET16(DBAU1550_WHOAMI);
109
110	if (DBAU1550_WHOAMI_BOARD(whoami) != DBAU1550_WHOAMI_DBAU1550_REV1)
111		panic("dbau1550: WHOAMI (%x) not DBAu1550!", whoami);
112
113	printf("DBAu1550 (cabernet), CPLDv%d, ",
114	    DBAU1550_WHOAMI_CPLD(whoami));
115
116	if (DBAU1550_WHOAMI_DAUGHTER(whoami) != 0xf)
117		printf("daughtercard 0x%x\n",
118		    DBAU1550_WHOAMI_DAUGHTER(whoami));
119	else
120		printf("no daughtercard\n");
121#endif
122
123	/* leave console and clocks alone -- YAMON should have got it right! */
124}
125
126int
127omsal400_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
128{
129	/*
130	 * This platform has 4 PCI devices:
131	 *  dev 1 (PCI_INTD):	PCI Connector
132	 *  dev 2 (PCI_INTC):	NEC USB 2.0 uPD720101
133	 *  dev 3 (PCI_INTB):	Intel GB Ether 82541PI
134	 *  dev 4 (PCI_INTA):	Intel GB Ether 82541PI
135	 */
136	static const int irqmap[4/*device*/][4/*pin*/] = {
137		{  6, -1, -1, -1 },	/* 1: PCI Connecter (not used) */
138		{  5,  5,  5, -1 },	/* 2: NEC USB 2.0 */
139		{  2, -1, -1, -1 },	/* 3: Intel GbE */
140		{  1, -1, -1, -1 },	/* 4: Intel GbE */
141	};
142
143	int pin, dev, irq;
144
145	/* if interrupt pin not used... */
146	if ((pin = pa->pa_intrpin) == 0)
147		return 1;
148
149	if (pin > 4) {
150		printf("pci: bad interrupt pin %d\n", pin);
151		return 1;
152	}
153
154	pci_decompose_tag(pa->pa_pc, pa->pa_intrtag, NULL, &dev, NULL);
155
156	if ((dev < 1) || (dev > 4)) {
157		printf("pci: bad device %d\n", dev);
158		return 1;
159	}
160
161	if ((irq = irqmap[dev - 1][pin - 1]) == -1) {
162		printf("pci: no IRQ routing for device %d pin %d\n", dev, pin);
163		return 1;
164	}
165
166	*ihp = irq;
167	return 0;
168}
169
170void
171omsal400_reboot(void)
172{
173
174	/* XXX */
175}
176
177void
178omsal400_poweroff(void)
179{
180
181	printf("\n- poweroff -\n");
182	/* XXX */
183}
184
185
186int
187omsal400_slot_irq(int slot, int which)
188{
189	static const int irqmap[1/*slot*/][2/*which*/] = {
190		{ 35, 37 },		/* Slot 0: CF connector Type2 */
191	};
192
193	if ((slot >= 1) || (which >= 2))
194		return -1;
195
196	return irqmap[slot][which];
197}
198
199bus_addr_t
200omsal400_slot_offset(int slot)
201{
202
203	switch (slot) {
204	case 0:
205		return (0);	/* offset 0 */
206	}
207	return (bus_addr_t)-1;
208}
209
210void
211omsal400_slot_enable(int slot)
212{
213
214	/* nothing todo */
215}
216
217void
218omsal400_slot_disable(int slot)
219{
220
221	/* nothing todo */
222}
223
224int
225omsal400_slot_status(int slot)
226{
227	uint16_t	inserted = 0;
228
229	switch (slot) {
230	case 0:
231		inserted = !AUGPIO_READ(5);	/* pin 5 */
232		break;
233	}
234
235	return inserted;
236}
237
238const char *
239omsal400_slot_name(int slot)
240{
241	switch (slot) {
242	case 0:
243		return "CF connector Type2 on Static BUS#3";
244	default:
245		return "???";
246	}
247}
248