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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* * * BRIEF MODULE DESCRIPTION * Board specific pci fixups. * * Copyright 2000 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/config.h> #ifdef CONFIG_PCI #include <linux/types.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/init.h> #include <asm/it8172/it8172.h> #include <asm/it8172/it8172_pci.h> #include <asm/it8172/it8172_int.h> void __init board_int_line_fixup(struct pci_dev *dev) { unsigned int slot, func; unsigned char pin; const int internal_func_irqs[7] = { IT8172_AC97_IRQ, IT8172_DMA_IRQ, IT8172_CDMA_IRQ, IT8172_USB_IRQ, IT8172_BRIDGE_MASTER_IRQ, IT8172_IDE_IRQ, IT8172_MC68K_IRQ }; #ifdef DEBUG printk("board_int_line_fixup bus %d\n", dev->bus->number); #endif if (dev->bus->number != 0) return; pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); #ifdef DEBUG pci_read_config_dword(dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor); #endif slot = PCI_SLOT(dev->devfn); func = PCI_FUNC(dev->devfn); switch (slot) { case 0x01: /* * Internal device 1 is actually 7 different internal * devices on the IT8172G (a multi-function device). */ if (func < 7) dev->irq = internal_func_irqs[func]; break; case 0x10: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTD_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x11: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTD_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x12: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTA_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x13: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTC_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTB_IRQ; break; default: dev->irq = 0xff; break; } break; case 0x14: switch (pin) { case 1: /* pin A */ dev->irq = IT8172_PCI_INTD_IRQ; break; case 2: /* pin B */ dev->irq = IT8172_PCI_INTA_IRQ; break; case 3: /* pin C */ dev->irq = IT8172_PCI_INTB_IRQ; break; case 4: /* pin D */ dev->irq = IT8172_PCI_INTC_IRQ; break; default: dev->irq = 0xff; break; } break; default: return; } #ifdef DEBUG printk("irq fixup: slot %d, vendor %x, int line %d, int number %d\n", slot, vendor, pin, dev->irq); #endif pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); } struct pci_fixup pcibios_fixups[] = { { PCI_FIXUP_HEADER, PCI_ANY_ID, PCI_ANY_ID, board_int_line_fixup }, { 0 } }; #endif |