src/mainboard/iei/nova4899r/irq_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007 Luis Correia <luis.f.correia@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <arch/pirq_routing.h>
  22
  23 /*
  24  *    IRQ          5530       USB     Network   Network   Network    free
  25  * controller  northbridge  device    device#0  device#1  device#2   slot
  26  *                          00.13.0   00.0a.00  00.0b.00  00.0c.00  00.0f.00
  27  * ------------------------------------------------------------------------
  28  *    14          INTA#      INTA#      n.c.      n.c.     n.c.      INTA#
  29  *    5           INTB#       n.c.      n.c.      n.c.    INTA#       n.c.
  30  *    10          INTC#       n.c.      n.c.     INTA#     n.c.       n.c.
  31  *    11          INTD#       n.c.     INTA#      n.c.     n.c.       n.c.
  32  */
  33
  34 /*
  35  * - the USB controller should be connected to IRQ14
  36  * - the network controller #0 should be connected to IRQ11
  37  * - the network controller #1 should be connected to IRQ10
  38  * - the network controller #2 should be connected to IRQ5
  39  * - the additional PCI slot must share the IRQ with the internal USB
  40  */
  41
  42 /* Bit  9 means IRQ 9 is available for this cs5530 INT input. */
  43 #define IRQ_BITMAP_LINK0 0x0200
  44 /* Bit  5 means IRQ 5 is available for this cs5530 INT input. */
  45 #define IRQ_BITMAP_LINK1 0x0020
  46 /* Bit 10 means IRQ10 is available for this cs5530 INT input. */
  47 #define IRQ_BITMAP_LINK2 0x0400
  48 /* Bit 11 means IRQ11 is available for this cs5530 INT input. */
  49 #define IRQ_BITMAP_LINK3 0x0800
  50
  51 const struct irq_routing_table intel_irq_routing_table = {
  52         .signature = PIRQ_SIGNATURE,    /* u32 signature */
  53         .version = PIRQ_VERSION,        /* u16 version   */
  54         .size = 32+16*CONFIG_IRQ_SLOT_COUNT,    /* There can be total 4 devices on the bus */
  55         .rtr_bus = 0x00,                /* Where the interrupt router lies (bus) */
  56         .rtr_devfn = (0x12<<3)|0x0,     /* Where the interrupt router lies (dev) */
  57         .exclusive_irqs = 0x4C20,       /* IRQs devoted exclusively to PCI usage */
  58         .rtr_vendor = 0x1078,           /* Vendor */
  59         .rtr_device = 0x0100,           /* Device */
  60         .miniport_data = 0,             /* Crap (miniport) */
  61         .checksum = 0xBF+16,            /* TODO! calculate correct sum ! */
  62 /*
  63  * Definition for "slot#0". There is no real slot,
  64  * the network device is soldered...
  65  */
  66         .slots = {
  67                 [0] = {
  68                         .bus = 0x00,
  69                         .devfn = (0x0a<<3)|0x0,
  70                         .irq = {
  71                                 [0] = {
  72                                         .link = 0x03,   /* INT C */
  73                                         .bitmap = IRQ_BITMAP_LINK2
  74                                 },
  75                                 [1] = {
  76                                         .link = 0x02,   /* INT B */
  77                                         .bitmap = IRQ_BITMAP_LINK1
  78                                 },
  79                                 [2] = { /* = device INTA output */
  80                                         .link = 0x01,   /* INT A */
  81                                         .bitmap = IRQ_BITMAP_LINK0
  82                                 },
  83                                 [3] = {
  84                                         .link = 0x04,   /* = cs5530 INT D input */
  85                                         .bitmap = IRQ_BITMAP_LINK3
  86                                 }
  87                         },
  88                         .slot = 0x3,    /* soldered */
  89                 },
  90 /*
  91  * Definition for "slot#1". There is no real slot,
  92  * the network device is soldered...
  93  *
  94  * Configuration is ommited on purpose in the attempt of solving the
  95  * issue with IRQ panics (this is device is actually eth1).
  96
  97                 [1] = {
  98                         .bus = 0x00,
  99                         .devfn = (0x0b<<3)|0x0,
 100                         .irq = {
 101                                 [0] = {
 102                                         .link = 0x04,
 103                                         .bitmap = IRQ_BITMAP_LINK3
 104                                 },
 105                                 [1] = {
 106                                         .link = 0x03,
 107                                         .bitmap = IRQ_BITMAP_LINK2
 108                                 },
 109                                 [2] = {
 110                                         .link = 0x02,
 111                                         .bitmap = IRQ_BITMAP_LINK1
 112                                 },
 113                                 [3] = {
 114                                         .link = 0x01,
 115                                         .bitmap = IRQ_BITMAP_LINK0
 116                                 }
 117                         },
 118                         .slot = 0x2,
 119                 },
 120  */
 121
 122 /*
 123  * Definition for "slot#2". There is no real slot,
 124  * the network device is soldered...
 125  */
 126                 [2] = {
 127                         .bus = 0x00,
 128                         .devfn = (0x0c<<3)|0x0,
 129                         .irq = {
 130                                 [0] = {
 131                                         .link = 0x01,   /* INT A */
 132                                         .bitmap = IRQ_BITMAP_LINK0
 133                                 },
 134                                 [1] = {
 135                                         .link = 0x04,   /* INT D */
 136                                         .bitmap = IRQ_BITMAP_LINK3
 137                                 },
 138                                 [2] = { /* = device INTA output */
 139                                         .link = 0x03,   /* INT C */
 140                                         .bitmap = IRQ_BITMAP_LINK2
 141                                 },
 142                                 [3] = {
 143                                         .link = 0x02,   /* = cs5530 INT B input */
 144                                         .bitmap = IRQ_BITMAP_LINK1
 145                                 }
 146                         },
 147                         .slot = 0x1,    /* soldered */
 148                 },
 149 /*
 150  * This is a free PCI slot.
 151  */
 152                 [3] = {
 153                         .bus = 0x00,
 154                         .devfn = (0x0f<<3)|0x0,
 155                         .irq = {
 156                                 [0] = { /* = device INTA output */
 157                                         .link = 0x04,   /* INT D */
 158                                         .bitmap = IRQ_BITMAP_LINK3
 159                                 },
 160                                 [1] = {
 161                                         .link = 0x03,   /* = cs5530 INT C input */
 162                                         .bitmap = IRQ_BITMAP_LINK2
 163                                 },
 164                                 [2] = {
 165                                         .link = 0x02,   /* INT B */
 166                                         .bitmap = IRQ_BITMAP_LINK1
 167                                 },
 168                                 [3] = {
 169                                         .link = 0x01,   /* INT A */
 170                                         .bitmap = IRQ_BITMAP_LINK0
 171                                 }
 172                         },
 173                         .slot = 0x6,    /* FIXME: should be not 0, as it defines a real slot */
 174                 },
 175 /*
 176  * Definition for "slot#3". There is no real slot,
 177  * the USB device is embedded...
 178  */
 179                 [4] = {
 180                         .bus = 0x00,
 181                         .devfn = (0x13<<3)|0x0,
 182                         .irq = {
 183                                 [0] = {
 184                                         .link = 0x02,   /* INT B */
 185                                         .bitmap = IRQ_BITMAP_LINK1
 186                                 },
 187                                 [1] = {
 188                                         .link = 0x01,   /* INT A */
 189                                         .bitmap = IRQ_BITMAP_LINK0
 190                                 },
 191                                 [2] = {
 192                                         .link = 0x04,   /* INT D */
 193                                         .bitmap = IRQ_BITMAP_LINK3
 194                                 },
 195                                 [3] = {
 196                                         .link = 0x03,   /* INT C */
 197                                         .bitmap = IRQ_BITMAP_LINK2
 198                                 }
 199                         },
 200                         .slot = 0x5,    /* chip internal */
 201                 }
 202         }
 203 };
 204
 205 /**
 206  * Copy the IRQ routing table to memory.
 207  *
 208  * @param addr Destination address (between 0xF0000...0x100000).
 209  * @return The end address of the pirq routing table in memory.
 210  **/
 211 unsigned long write_pirq_routing_table(unsigned long addr)
 212 {
 213         return copy_pirq_routing_table(addr);
 214 }