1/* $NetBSD: omsal400.c,v 1.8 2011/07/01 18:44:45 dyoung 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 1.8 2011/07/01 18:44:45 dyoung Exp $");
40
41#include <sys/param.h>
42#include <sys/bus.h>
43
44#include <mips/locore.h>
45
46#include <mips/alchemy/dev/augpiovar.h>
47#include <mips/alchemy/dev/aupcmciavar.h>
48
49#include <evbmips/alchemy/obiovar.h>
50#include <evbmips/alchemy/board.h>
51#include <evbmips/alchemy/omsal400reg.h>
52
53#define	GET16(x)	\
54	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)))
55#define	PUT16(x, v)	\
56	(*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v))
57
58static void	omsal400_init(void);
59static int	omsal400_pci_intr_map(const struct pci_attach_args *,
60					 pci_intr_handle_t *);
61static void	omsal400_poweroff(void);
62static void	omsal400_reboot(void);
63static bus_addr_t omsal400_slot_offset(int);
64static int omsal400_slot_irq(int, int);
65static void omsal400_slot_enable(int);
66static void omsal400_slot_disable(int);
67static int omsal400_slot_status(int);
68static const char *omsal400_slot_name(int);
69
70static const struct obiodev omsal400_devices[] = {
71	{ NULL },
72};
73
74static struct aupcmcia_machdep omsal400_pcmcia = {
75	1,      /* nslots */
76	omsal400_slot_offset,
77	omsal400_slot_irq,
78	omsal400_slot_enable,
79	omsal400_slot_disable,
80	omsal400_slot_status,
81	omsal400_slot_name,
82};
83
84static struct alchemy_board omsal400_info = {
85	"Plathome Open Micro Server AL400/AMD Alchemy Au1550",
86	omsal400_devices,
87	omsal400_init,
88	omsal400_pci_intr_map,
89	omsal400_reboot,
90	omsal400_poweroff,
91	&omsal400_pcmcia,
92};
93
94const struct alchemy_board *
95board_info(void)
96{
97
98	return &omsal400_info;
99}
100
101void
102omsal400_init(void)
103{
104	/* uint16_t whoami; */
105
106	if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1550)
107		panic("omsal400: CPU not Au1550");
108
109#if 0 /* XXX: TODO borad identification */
110	/* check the whoami register for a match */
111	whoami = GET16(DBAU1550_WHOAMI);
112
113	if (DBAU1550_WHOAMI_BOARD(whoami) != DBAU1550_WHOAMI_DBAU1550_REV1)
114		panic("dbau1550: WHOAMI (%x) not DBAu1550!", whoami);
115
116	printf("DBAu1550 (cabernet), CPLDv%d, ",
117	    DBAU1550_WHOAMI_CPLD(whoami));
118
119	if (DBAU1550_WHOAMI_DAUGHTER(whoami) != 0xf)
120		printf("daughtercard 0x%x\n",
121		    DBAU1550_WHOAMI_DAUGHTER(whoami));
122	else
123		printf("no daughtercard\n");
124#endif
125
126	/* leave console and clocks alone -- YAMON should have got it right! */
127}
128
129int
130omsal400_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
131{
132	/*
133	 * This platform has 4 PCI devices:
134	 *  dev 1 (PCI_INTD):	PCI Connector
135	 *  dev 2 (PCI_INTC):	NEC USB 2.0 uPD720101
136	 *  dev 3 (PCI_INTB):	Intel GB Ether 82541PI
137	 *  dev 4 (PCI_INTA):	Intel GB Ether 82541PI
138	 */
139	static const int irqmap[4/*device*/][4/*pin*/] = {
140		{  6, -1, -1, -1 },	/* 1: PCI Connecter (not used) */
141		{  5,  5,  5, -1 },	/* 2: NEC USB 2.0 */
142		{  2, -1, -1, -1 },	/* 3: Intel GbE */
143		{  1, -1, -1, -1 },	/* 4: Intel GbE */
144	};
145
146	int pin, dev, irq;
147
148	/* if interrupt pin not used... */
149	if ((pin = pa->pa_intrpin) == 0)
150		return 1;
151
152	if (pin > 4) {
153		printf("pci: bad interrupt pin %d\n", pin);
154		return 1;
155	}
156
157	pci_decompose_tag(pa->pa_pc, pa->pa_intrtag, NULL, &dev, NULL);
158
159	if ((dev < 1) || (dev > 4)) {
160		printf("pci: bad device %d\n", dev);
161		return 1;
162	}
163
164	if ((irq = irqmap[dev - 1][pin - 1]) == -1) {
165		printf("pci: no IRQ routing for device %d pin %d\n", dev, pin);
166		return 1;
167	}
168
169	*ihp = irq;
170	return 0;
171}
172
173void
174omsal400_reboot(void)
175{
176
177	/* XXX */
178}
179
180void
181omsal400_poweroff(void)
182{
183
184	printf("\n- poweroff -\n");
185	/* XXX */
186}
187
188
189int
190omsal400_slot_irq(int slot, int which)
191{
192	static const int irqmap[1/*slot*/][2/*which*/] = {
193		{ 35, 37 },		/* Slot 0: CF connector Type2 */
194	};
195
196	if ((slot >= 1) || (which >= 2))
197		return -1;
198
199	return irqmap[slot][which];
200}
201
202bus_addr_t
203omsal400_slot_offset(int slot)
204{
205
206	switch (slot) {
207	case 0:
208		return (0);	/* offset 0 */
209	}
210	return (bus_addr_t)-1;
211}
212
213void
214omsal400_slot_enable(int slot)
215{
216
217	/* nothing todo */
218}
219
220void
221omsal400_slot_disable(int slot)
222{
223
224	/* nothing todo */
225}
226
227int
228omsal400_slot_status(int slot)
229{
230	uint16_t	inserted = 0;
231
232	switch (slot) {
233	case 0:
234		inserted = !AUGPIO_READ(5);	/* pin 5 */
235		break;
236	}
237
238	return inserted;
239}
240
241const char *
242omsal400_slot_name(int slot)
243{
244	switch (slot) {
245	case 0:
246		return "CF connector Type2 on Static BUS#3";
247	default:
248		return "???";
249	}
250}
251