release/src/linux/linux/arch/mips/au1000/db1x00/irqmap.c

   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
  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