| Marc St-Jean | 6f95e60 | 2007-06-14 15:56:23 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * PMC-Sierra MSP board specific pci fixups. |
| 3 | * |
| 4 | * Copyright 2001 MontaVista Software Inc. |
| 5 | * Copyright 2005-2007 PMC-Sierra, Inc |
| 6 | * |
| 7 | * Author: MontaVista Software, Inc. |
| 8 | * ppopov@mvista.com or source@mvista.com |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify it |
| 11 | * under the terms of the GNU General Public License as published by the |
| 12 | * Free Software Foundation; either version 2 of the License, or (at your |
| 13 | * option) any later version. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 16 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 17 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 18 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 19 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 20 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 21 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 22 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 23 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 24 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 25 | * |
| 26 | * You should have received a copy of the GNU General Public License along |
| 27 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 28 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 29 | */ |
| 30 | |
| 31 | #ifdef CONFIG_PCI |
| 32 | |
| 33 | #include <linux/types.h> |
| 34 | #include <linux/pci.h> |
| 35 | #include <linux/kernel.h> |
| 36 | #include <linux/init.h> |
| 37 | |
| 38 | #include <asm/byteorder.h> |
| 39 | |
| 40 | #include <msp_pci.h> |
| 41 | #include <msp_cic_int.h> |
| 42 | |
| 43 | /* PCI interrupt pins */ |
| 44 | #define IRQ4 MSP_INT_EXT4 |
| 45 | #define IRQ5 MSP_INT_EXT5 |
| 46 | #define IRQ6 MSP_INT_EXT6 |
| 47 | |
| 48 | #if defined(CONFIG_PMC_MSP7120_GW) |
| 49 | /* Garibaldi Board IRQ wiring to PCI slots */ |
| 50 | static char irq_tab[][5] __initdata = { |
| 51 | /* INTA INTB INTC INTD */ |
| 52 | {0, 0, 0, 0, 0 }, /* (AD[0]): Unused */ |
| 53 | {0, 0, 0, 0, 0 }, /* (AD[1]): Unused */ |
| 54 | {0, 0, 0, 0, 0 }, /* (AD[2]): Unused */ |
| 55 | {0, 0, 0, 0, 0 }, /* (AD[3]): Unused */ |
| 56 | {0, 0, 0, 0, 0 }, /* (AD[4]): Unused */ |
| 57 | {0, 0, 0, 0, 0 }, /* (AD[5]): Unused */ |
| 58 | {0, 0, 0, 0, 0 }, /* (AD[6]): Unused */ |
| 59 | {0, 0, 0, 0, 0 }, /* (AD[7]): Unused */ |
| 60 | {0, 0, 0, 0, 0 }, /* (AD[8]): Unused */ |
| 61 | {0, 0, 0, 0, 0 }, /* (AD[9]): Unused */ |
| 62 | {0, 0, 0, 0, 0 }, /* 0 (AD[10]): Unused */ |
| 63 | {0, 0, 0, 0, 0 }, /* 1 (AD[11]): Unused */ |
| 64 | {0, 0, 0, 0, 0 }, /* 2 (AD[12]): Unused */ |
| 65 | {0, 0, 0, 0, 0 }, /* 3 (AD[13]): Unused */ |
| 66 | {0, 0, 0, 0, 0 }, /* 4 (AD[14]): Unused */ |
| 67 | {0, 0, 0, 0, 0 }, /* 5 (AD[15]): Unused */ |
| 68 | {0, 0, 0, 0, 0 }, /* 6 (AD[16]): Unused */ |
| 69 | {0, 0, 0, 0, 0 }, /* 7 (AD[17]): Unused */ |
| 70 | {0, 0, 0, 0, 0 }, /* 8 (AD[18]): Unused */ |
| 71 | {0, 0, 0, 0, 0 }, /* 9 (AD[19]): Unused */ |
| 72 | {0, 0, 0, 0, 0 }, /* 10 (AD[20]): Unused */ |
| 73 | {0, 0, 0, 0, 0 }, /* 11 (AD[21]): Unused */ |
| 74 | {0, 0, 0, 0, 0 }, /* 12 (AD[22]): Unused */ |
| 75 | {0, 0, 0, 0, 0 }, /* 13 (AD[23]): Unused */ |
| 76 | {0, 0, 0, 0, 0 }, /* 14 (AD[24]): Unused */ |
| 77 | {0, 0, 0, 0, 0 }, /* 15 (AD[25]): Unused */ |
| 78 | {0, 0, 0, 0, 0 }, /* 16 (AD[26]): Unused */ |
| 79 | {0, 0, 0, 0, 0 }, /* 17 (AD[27]): Unused */ |
| 80 | {0, IRQ4, IRQ4, 0, 0 }, /* 18 (AD[28]): slot 0 */ |
| 81 | {0, 0, 0, 0, 0 }, /* 19 (AD[29]): Unused */ |
| 82 | {0, IRQ5, IRQ5, 0, 0 }, /* 20 (AD[30]): slot 1 */ |
| 83 | {0, IRQ6, IRQ6, 0, 0 } /* 21 (AD[31]): slot 2 */ |
| 84 | }; |
| 85 | |
| 86 | #elif defined(CONFIG_PMC_MSP7120_EVAL) |
| 87 | |
| 88 | /* MSP7120 Eval Board IRQ wiring to PCI slots */ |
| 89 | static char irq_tab[][5] __initdata = { |
| 90 | /* INTA INTB INTC INTD */ |
| 91 | {0, 0, 0, 0, 0 }, /* (AD[0]): Unused */ |
| 92 | {0, 0, 0, 0, 0 }, /* (AD[1]): Unused */ |
| 93 | {0, 0, 0, 0, 0 }, /* (AD[2]): Unused */ |
| 94 | {0, 0, 0, 0, 0 }, /* (AD[3]): Unused */ |
| 95 | {0, 0, 0, 0, 0 }, /* (AD[4]): Unused */ |
| 96 | {0, 0, 0, 0, 0 }, /* (AD[5]): Unused */ |
| 97 | {0, 0, 0, 0, 0 }, /* (AD[6]): Unused */ |
| 98 | {0, 0, 0, 0, 0 }, /* (AD[7]): Unused */ |
| 99 | {0, 0, 0, 0, 0 }, /* (AD[8]): Unused */ |
| 100 | {0, 0, 0, 0, 0 }, /* (AD[9]): Unused */ |
| 101 | {0, 0, 0, 0, 0 }, /* 0 (AD[10]): Unused */ |
| 102 | {0, 0, 0, 0, 0 }, /* 1 (AD[11]): Unused */ |
| 103 | {0, 0, 0, 0, 0 }, /* 2 (AD[12]): Unused */ |
| 104 | {0, 0, 0, 0, 0 }, /* 3 (AD[13]): Unused */ |
| 105 | {0, 0, 0, 0, 0 }, /* 4 (AD[14]): Unused */ |
| 106 | {0, 0, 0, 0, 0 }, /* 5 (AD[15]): Unused */ |
| 107 | {0, IRQ6, IRQ6, 0, 0 }, /* 6 (AD[16]): slot 3 (mini) */ |
| 108 | {0, IRQ5, IRQ5, 0, 0 }, /* 7 (AD[17]): slot 2 (mini) */ |
| 109 | {0, IRQ4, IRQ4, IRQ4, IRQ4}, /* 8 (AD[18]): slot 0 (PCI) */ |
| 110 | {0, IRQ5, IRQ5, IRQ5, IRQ5}, /* 9 (AD[19]): slot 1 (PCI) */ |
| 111 | {0, 0, 0, 0, 0 }, /* 10 (AD[20]): Unused */ |
| 112 | {0, 0, 0, 0, 0 }, /* 11 (AD[21]): Unused */ |
| 113 | {0, 0, 0, 0, 0 }, /* 12 (AD[22]): Unused */ |
| 114 | {0, 0, 0, 0, 0 }, /* 13 (AD[23]): Unused */ |
| 115 | {0, 0, 0, 0, 0 }, /* 14 (AD[24]): Unused */ |
| 116 | {0, 0, 0, 0, 0 }, /* 15 (AD[25]): Unused */ |
| 117 | {0, 0, 0, 0, 0 }, /* 16 (AD[26]): Unused */ |
| 118 | {0, 0, 0, 0, 0 }, /* 17 (AD[27]): Unused */ |
| 119 | {0, 0, 0, 0, 0 }, /* 18 (AD[28]): Unused */ |
| 120 | {0, 0, 0, 0, 0 }, /* 19 (AD[29]): Unused */ |
| 121 | {0, 0, 0, 0, 0 }, /* 20 (AD[30]): Unused */ |
| 122 | {0, 0, 0, 0, 0 } /* 21 (AD[31]): Unused */ |
| 123 | }; |
| 124 | |
| 125 | #else |
| 126 | |
| 127 | /* Unknown board -- don't assign any IRQs */ |
| 128 | static char irq_tab[][5] __initdata = { |
| 129 | /* INTA INTB INTC INTD */ |
| 130 | {0, 0, 0, 0, 0 }, /* (AD[0]): Unused */ |
| 131 | {0, 0, 0, 0, 0 }, /* (AD[1]): Unused */ |
| 132 | {0, 0, 0, 0, 0 }, /* (AD[2]): Unused */ |
| 133 | {0, 0, 0, 0, 0 }, /* (AD[3]): Unused */ |
| 134 | {0, 0, 0, 0, 0 }, /* (AD[4]): Unused */ |
| 135 | {0, 0, 0, 0, 0 }, /* (AD[5]): Unused */ |
| 136 | {0, 0, 0, 0, 0 }, /* (AD[6]): Unused */ |
| 137 | {0, 0, 0, 0, 0 }, /* (AD[7]): Unused */ |
| 138 | {0, 0, 0, 0, 0 }, /* (AD[8]): Unused */ |
| 139 | {0, 0, 0, 0, 0 }, /* (AD[9]): Unused */ |
| 140 | {0, 0, 0, 0, 0 }, /* 0 (AD[10]): Unused */ |
| 141 | {0, 0, 0, 0, 0 }, /* 1 (AD[11]): Unused */ |
| 142 | {0, 0, 0, 0, 0 }, /* 2 (AD[12]): Unused */ |
| 143 | {0, 0, 0, 0, 0 }, /* 3 (AD[13]): Unused */ |
| 144 | {0, 0, 0, 0, 0 }, /* 4 (AD[14]): Unused */ |
| 145 | {0, 0, 0, 0, 0 }, /* 5 (AD[15]): Unused */ |
| 146 | {0, 0, 0, 0, 0 }, /* 6 (AD[16]): Unused */ |
| 147 | {0, 0, 0, 0, 0 }, /* 7 (AD[17]): Unused */ |
| 148 | {0, 0, 0, 0, 0 }, /* 8 (AD[18]): Unused */ |
| 149 | {0, 0, 0, 0, 0 }, /* 9 (AD[19]): Unused */ |
| 150 | {0, 0, 0, 0, 0 }, /* 10 (AD[20]): Unused */ |
| 151 | {0, 0, 0, 0, 0 }, /* 11 (AD[21]): Unused */ |
| 152 | {0, 0, 0, 0, 0 }, /* 12 (AD[22]): Unused */ |
| 153 | {0, 0, 0, 0, 0 }, /* 13 (AD[23]): Unused */ |
| 154 | {0, 0, 0, 0, 0 }, /* 14 (AD[24]): Unused */ |
| 155 | {0, 0, 0, 0, 0 }, /* 15 (AD[25]): Unused */ |
| 156 | {0, 0, 0, 0, 0 }, /* 16 (AD[26]): Unused */ |
| 157 | {0, 0, 0, 0, 0 }, /* 17 (AD[27]): Unused */ |
| 158 | {0, 0, 0, 0, 0 }, /* 18 (AD[28]): Unused */ |
| 159 | {0, 0, 0, 0, 0 }, /* 19 (AD[29]): Unused */ |
| 160 | {0, 0, 0, 0, 0 }, /* 20 (AD[30]): Unused */ |
| 161 | {0, 0, 0, 0, 0 } /* 21 (AD[31]): Unused */ |
| 162 | }; |
| 163 | #endif |
| 164 | |
| 165 | /***************************************************************************** |
| 166 | * |
| 167 | * FUNCTION: pcibios_plat_dev_init |
| 168 | * _________________________________________________________________________ |
| 169 | * |
| 170 | * DESCRIPTION: Perform platform specific device initialization at |
| 171 | * pci_enable_device() time. |
| 172 | * None are needed for the MSP7120 PCI Controller. |
| 173 | * |
| 174 | * INPUTS: dev - structure describing the PCI device |
| 175 | * |
| 176 | * OUTPUTS: none |
| 177 | * |
| 178 | * RETURNS: PCIBIOS_SUCCESSFUL |
| 179 | * |
| 180 | ****************************************************************************/ |
| 181 | int pcibios_plat_dev_init(struct pci_dev *dev) |
| 182 | { |
| 183 | return PCIBIOS_SUCCESSFUL; |
| 184 | } |
| 185 | |
| 186 | /***************************************************************************** |
| 187 | * |
| 188 | * FUNCTION: pcibios_map_irq |
| 189 | * _________________________________________________________________________ |
| 190 | * |
| 191 | * DESCRIPTION: Perform board supplied PCI IRQ mapping routine. |
| 192 | * |
| 193 | * INPUTS: dev - unused |
| 194 | * slot - PCI slot. Identified by which bit of the AD[] bus |
| 195 | * drives the IDSEL line. AD[10] is 0, AD[31] is |
| 196 | * slot 21. |
| 197 | * pin - numbered using the scheme of the PCI_INTERRUPT_PIN |
| 198 | * field of the config header. |
| 199 | * |
| 200 | * OUTPUTS: none |
| 201 | * |
| 202 | * RETURNS: IRQ number |
| 203 | * |
| 204 | ****************************************************************************/ |
| 205 | int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 206 | { |
| 207 | #if !defined(CONFIG_PMC_MSP7120_GW) && !defined(CONFIG_PMC_MSP7120_EVAL) |
| 208 | printk(KERN_WARNING "PCI: unknown board, no PCI IRQs assigned.\n"); |
| 209 | #endif |
| 210 | printk(KERN_WARNING "PCI: irq_tab returned %d for slot=%d pin=%d\n", |
| 211 | irq_tab[slot][pin], slot, pin); |
| 212 | |
| 213 | return irq_tab[slot][pin]; |
| 214 | } |
| 215 | |
| 216 | #endif /* CONFIG_PCI */ |