1 /* $NetBSD: pci_machdep.c,v 1.15 2007/10/17 19:54:05 garbled Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 5 * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Charles M. Hannum. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Machine-specific functions for PCI autoconfiguration. 35 * 36 * On PCs, there are two methods of generating PCI configuration cycles. 37 * We try to detect the appropriate mechanism for this machine and set 38 * up a few function pointers to access the correct method directly. 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.15 2007/10/17 19:54:05 garbled Exp $"); 43 44 #include <sys/types.h> 45 #include <sys/param.h> 46 #include <sys/time.h> 47 #include <sys/systm.h> 48 #include <sys/errno.h> 49 #include <sys/device.h> 50 51 #include <uvm/uvm_extern.h> 52 53 #define _POWERPC_BUS_DMA_PRIVATE 54 #include <machine/bus.h> 55 #include <machine/intr.h> 56 57 #include <powerpc/pio.h> 58 59 #include <dev/isa/isavar.h> 60 #include <dev/pci/pcivar.h> 61 #include <dev/pci/pcireg.h> 62 #include <dev/pci/pcidevs.h> 63 64 #include <machine/pci_machdep.h> 65 66 extern struct genppc_pci_chipset *genppc_pct; 67 68 #define PCI_MODE1_ADDRESS_REG (PREP_BUS_SPACE_IO + 0xcf8) 69 #define PCI_MODE1_DATA_REG (PREP_BUS_SPACE_IO + 0xcfc) 70 71 void pci_intr_fixup(int, int, int *); 72 73 void 74 bebox_pci_get_chipset_tag(pci_chipset_tag_t pc) 75 { 76 pc->pc_conf_v = (void *)pc; 77 78 pc->pc_attach_hook = genppc_pci_indirect_attach_hook; 79 pc->pc_bus_maxdevs = genppc_pci_bus_maxdevs; 80 pc->pc_make_tag = genppc_pci_indirect_make_tag; 81 pc->pc_conf_read = genppc_pci_indirect_conf_read; 82 pc->pc_conf_write = genppc_pci_indirect_conf_write; 83 84 pc->pc_intr_v = (void *)pc; 85 86 pc->pc_intr_map = genppc_pci_intr_map; 87 pc->pc_intr_string = genppc_pci_intr_string; 88 pc->pc_intr_evcnt = genppc_pci_intr_evcnt; 89 pc->pc_intr_establish = genppc_pci_intr_establish; 90 pc->pc_intr_disestablish = genppc_pci_intr_disestablish; 91 92 pc->pc_conf_interrupt = bebox_pci_conf_interrupt; 93 pc->pc_decompose_tag = genppc_pci_indirect_decompose_tag; 94 pc->pc_conf_hook = genppc_pci_conf_hook; 95 96 pc->pc_addr = mapiodev(PCI_MODE1_ADDRESS_REG, 4); 97 pc->pc_data = mapiodev(PCI_MODE1_DATA_REG, 4); 98 pc->pc_bus = 0; 99 pc->pc_node = 0; 100 pc->pc_memt = 0; 101 pc->pc_iot = 0; 102 } 103 104 void 105 bebox_pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, 106 int swiz, int *iline) 107 { 108 #if 0 109 (*platform->pci_intr_fixup)(bus, dev, iline); 110 #endif 111 } 112