1 /*
2 * BRIEF MODULE DESCRIPTION
3 * Au1xxx irq map table
4 *
5 * Copyright 2003 Embedded Edge, LLC
6 * dan@embeddededge.com
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
14 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
15 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
16 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
19 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * You should have received a copy of the GNU General Public License along
25 * with this program; if not, write to the Free Software Foundation, Inc.,
26 * 675 Mass Ave, Cambridge, MA 02139, USA.
27 */
28 #include <linux/errno.h>
29 #include <linux/init.h>
30 #include <linux/irq.h>
31 #include <linux/kernel_stat.h>
32 #include <linux/module.h>
33 #include <linux/signal.h>
34 #include <linux/sched.h>
35 #include <linux/types.h>
36 #include <linux/interrupt.h>
37 #include <linux/ioport.h>
38 #include <linux/timex.h>
39 #include <linux/slab.h>
40 #include <linux/random.h>
41 #include <linux/delay.h>
42
43 #include <asm/bitops.h>
44 #include <asm/bootinfo.h>
45 #include <asm/io.h>
46 #include <asm/mipsregs.h>
47 #include <asm/system.h>
48 #include <asm/au1000.h>
49
50 au1xxx_irq_map_t au1xxx_irq_map[] = {
51
52 #ifndef CONFIG_MIPS_MIRAGE
53 #ifdef CONFIG_MIPS_DB1550
54 { AU1000_GPIO_3, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 0 IRQ#
55 { AU1000_GPIO_5, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 1 IRQ#
56 #else
57 { AU1000_GPIO_0, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 0 Fully_Interted#
58 { AU1000_GPIO_1, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 0 STSCHG#
59 { AU1000_GPIO_2, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 0 IRQ#
60
61 { AU1000_GPIO_3, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 1 Fully_Interted#
62 { AU1000_GPIO_4, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 1 STSCHG#
63 { AU1000_GPIO_5, INTC_INT_LOW_LEVEL, 0 }, // PCMCIA Card 1 IRQ#
64 #endif
65 #else
66 { AU1000_GPIO_7, INTC_INT_RISE_EDGE, 0 }, /* touchscreen pendown */
67 #endif
68 };
69
70 int au1xxx_nr_irqs = sizeof(au1xxx_irq_map)/sizeof(au1xxx_irq_map_t);
71
72 #ifdef CONFIG_PCI
73
74 #ifdef CONFIG_SOC_AU1500
75 #define INTA AU1000_PCI_INTA
76 #define INTB AU1000_PCI_INTB
77 #define INTC AU1000_PCI_INTC
78 #define INTD AU1000_PCI_INTD
79 #endif
80
81 #ifdef CONFIG_SOC_AU1550
82 #define INTA AU1550_PCI_INTA
83 #define INTB AU1550_PCI_INTB
84 #define INTC AU1550_PCI_INTC
85 #define INTD AU1550_PCI_INTD
86 #endif
87
88 #define INTX 0xFF /* not valid */
89
90 int __init
au1xxx_pci_irqmap(struct pci_dev * dev,unsigned char idsel,unsigned char pin)91 au1xxx_pci_irqmap(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
92 {
93 /*
94 * PCI IDSEL/INTPIN->INTLINE
95 * A B C D
96 */
97 #ifdef CONFIG_MIPS_DB1500
98 static char pci_irq_table[][4] =
99 {
100 {INTA, INTX, INTX, INTX}, /* IDSEL 12 - HPT371 */
101 {INTA, INTB, INTC, INTD}, /* IDSEL 13 - PCI slot */
102 };
103 const long min_idsel = 12, max_idsel = 13, irqs_per_slot = 4;
104 #endif
105
106 #ifdef CONFIG_MIPS_BOSPORUS
107 static char pci_irq_table[][4] =
108 {
109 {INTA, INTB, INTX, INTX}, /* IDSEL 11 - miniPCI */
110 {INTA, INTX, INTX, INTX}, /* IDSEL 12 - SN1741 */
111 {INTA, INTB, INTC, INTD}, /* IDSEL 13 - PCI slot */
112 };
113 const long min_idsel = 11, max_idsel = 13, irqs_per_slot = 4;
114 #endif
115
116 #ifdef CONFIG_MIPS_MIRAGE
117 static char pci_irq_table[][4] =
118 {
119 {INTD, INTX, INTX, INTX}, /* IDSEL 11 - SMI VGX */
120 {INTX, INTX, INTC, INTX}, /* IDSEL 12 - PNX1300 */
121 {INTA, INTB, INTX, INTX}, /* IDSEL 13 - miniPCI */
122 };
123 const long min_idsel = 11, max_idsel = 13, irqs_per_slot = 4;
124 #endif
125
126 #ifdef CONFIG_MIPS_DB1550
127 static char pci_irq_table[][4] =
128 {
129 {INTC, INTX, INTX, INTX}, /* IDSEL 11 - on-board HPT371 */
130 {INTB, INTC, INTD, INTA}, /* IDSEL 12 - PCI slot 2 (left) */
131 {INTA, INTB, INTC, INTD}, /* IDSEL 13 - PCI slot 1 (right) */
132 };
133 const long min_idsel = 11, max_idsel = 13, irqs_per_slot = 4;
134 #endif
135 #if defined(CONFIG_SOC_AU1550) || defined(CONFIG_SOC_AU1500)
136 return PCI_IRQ_TABLE_LOOKUP;
137 #else
138 return 0;
139 #endif
140 };
141 #endif
142
143