1/* $OpenBSD: rbus_machdep.c,v 1.13 2013/08/07 07:29:19 mpi Exp $ */ 2/* $NetBSD: rbus_machdep.c,v 1.2 1999/10/15 06:43:06 haya Exp $ */ 3 4/* 5 * Copyright (c) 1999 6 * HAYAKAWA Koichi. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31 32#include <machine/bus.h> 33#include <dev/cardbus/rbus.h> 34 35#include <dev/pci/pcivar.h> 36#include <dev/pci/pcidevs.h> 37 38#include <dev/ofw/openfirm.h> 39 40void macppc_cardbus_init(pci_chipset_tag_t pc, pcitag_t tag); 41 42rbus_tag_t 43rbus_pccbb_parent_mem(struct device *self, struct pci_attach_args *pa) 44{ 45 macppc_cardbus_init(pa->pa_pc, pa->pa_tag); 46 47 return (rbus_new_root_share(pa->pa_memt, pa->pa_memex, 48 0x00000000, 0xffffffff)); 49} 50 51rbus_tag_t 52rbus_pccbb_parent_io(struct device *self, struct pci_attach_args *pa) 53{ 54 return (rbus_new_root_share(pa->pa_iot, pa->pa_ioex, 55 0x0000, 0xffff)); 56} 57 58/* 59 * Big ugly hack to enable bridge/fix interrupts 60 */ 61void 62macppc_cardbus_init(pci_chipset_tag_t pc, pcitag_t tag) 63{ 64 u_int x; 65 static int initted = 0; 66 67 if (initted) 68 return; 69 initted = 1; 70 71 /* XXX What about other bridges? */ 72 73 x = pci_conf_read(pc, tag, PCI_ID_REG); 74 if (PCI_VENDOR(x) == PCI_VENDOR_TI && 75 PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1211) { 76 /* For CardBus card. */ 77 pci_conf_write(pc, tag, 0x18, 0x10010100); 78 79 /* Route INTA to MFUNC0 */ 80 x = pci_conf_read(pc, tag, 0x8c); 81 x |= 0x02; 82 pci_conf_write(pc, tag, 0x8c, x); 83 84 tag = pci_make_tag(pc, 0, 0, 0); 85 x = pci_conf_read(pc, tag, PCI_ID_REG); 86 if (PCI_VENDOR(x) == PCI_VENDOR_MOT && 87 PCI_PRODUCT(x) == PCI_PRODUCT_MOT_MPC106) { 88 /* Set subordinate bus number to 1. */ 89 x = pci_conf_read(pc, tag, 0x40); 90 x |= 1 << 8; 91 pci_conf_write(pc, tag, 0x40, x); 92 } 93 } 94 95 if (PCI_VENDOR(x) == PCI_VENDOR_TI && 96 (PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1410 || 97 PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1510)) { 98 /* dont mess with the bus numbers or latency timer */ 99 100 /* Route INTA to MFUNC0 */ 101 x = pci_conf_read(pc, tag, 0x8c); 102 x |= 0x02; 103 pci_conf_write(pc, tag, 0x8c, x); 104 } 105} 106 107void 108pccbb_attach_hook(struct device *parent, struct device *self, 109 struct pci_attach_args *pa) 110{ 111 pci_chipset_tag_t pc = pa->pa_pc; 112 int node = PCITAG_NODE(pa->pa_tag); 113 int bus, busrange[2]; 114 115 if (OF_getprop(OF_parent(node), "bus-range", &busrange, 116 sizeof(busrange)) != sizeof(busrange)) 117 return; 118 119 bus = busrange[0] + 1; 120 while (bus < 256 && pc->busnode[bus]) 121 bus++; 122 if (bus == 256) 123 return; 124 pc->busnode[bus] = node; 125} 126