1 /* $NetBSD: rbus_machdep.c,v 1.10 2001/06/10 15:32:58 tsubai Exp $ */ 2 3 /* 4 * Copyright (c) 1999 5 * TSUBAI Masanari. 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/device.h> 32 #include <sys/systm.h> 33 34 #include <uvm/uvm_extern.h> 35 36 #include <machine/bat.h> 37 #include <machine/bus.h> 38 39 #include <dev/pci/pcivar.h> 40 #include <dev/pci/pcidevs.h> 41 #include <dev/cardbus/rbus.h> 42 #include <dev/ofw/openfirm.h> 43 44 static void macppc_cardbus_init __P((pci_chipset_tag_t, pcitag_t)); 45 46 #ifdef DEBUG_ALLOC 47 # define DPRINTF printf 48 #else 49 # define DPRINTF while (0) printf 50 #endif 51 52 int 53 md_space_map(t, bpa, size, flags, bshp) 54 bus_space_tag_t t; 55 bus_addr_t bpa; 56 bus_size_t size; 57 int flags; 58 bus_space_handle_t *bshp; 59 { 60 DPRINTF("md_space_map: 0x%x, 0x%x, 0x%x\n", t, bpa, size); 61 62 /* XXX */ 63 *bshp = t + bpa; 64 return 0; 65 } 66 67 void 68 md_space_unmap(t, bsh, size, adrp) 69 bus_space_tag_t t; 70 bus_space_handle_t bsh; 71 bus_size_t size; 72 bus_addr_t *adrp; 73 { 74 DPRINTF("md_space_unmap: 0x%x 0x%x\n", t, bsh); 75 76 /* XXX */ 77 if (adrp) 78 *adrp = bsh - t; 79 } 80 81 rbus_tag_t 82 rbus_pccbb_parent_mem(pa) 83 struct pci_attach_args *pa; 84 { 85 bus_addr_t start; 86 bus_size_t size; 87 int node, reg[5]; 88 89 macppc_cardbus_init(pa->pa_pc, pa->pa_tag); 90 91 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 92 OF_getprop(node, "assigned-addresses", reg, sizeof(reg)); 93 94 start = reg[2]; 95 size = reg[4]; 96 97 /* XXX PowerBook G3 */ 98 if (size < 0x10000) { 99 start = 0x90000000; 100 size = 0x10000000; 101 } 102 103 battable[start >> 28].batl = BATL(start, BAT_I, BAT_PP_RW); 104 battable[start >> 28].batu = BATU(start, BAT_BL_256M, BAT_Vs); 105 106 return rbus_new_root_delegate(pa->pa_memt, start, size, 0); 107 } 108 109 rbus_tag_t 110 rbus_pccbb_parent_io(pa) 111 struct pci_attach_args *pa; 112 { 113 bus_addr_t start = 0x2000; 114 bus_size_t size = 0x0800; 115 116 start += pa->pa_function * size; 117 return rbus_new_root_delegate(pa->pa_iot, start, size, 0); 118 119 /* XXX we should use ``offset''? */ 120 } 121 122 void 123 macppc_cardbus_init(pc, tag) 124 pci_chipset_tag_t pc; 125 pcitag_t tag; 126 { 127 u_int x; 128 static int initted = 0; 129 130 if (initted) 131 return; 132 initted = 1; 133 134 /* XXX What about other bridges? */ 135 136 x = pci_conf_read(pc, tag, PCI_ID_REG); 137 if (PCI_VENDOR(x) == PCI_VENDOR_TI && 138 PCI_PRODUCT(x) == PCI_PRODUCT_TI_PCI1211) { 139 /* For CardBus card. */ 140 pci_conf_write(pc, tag, 0x18, 0x10010100); 141 142 /* Route INTA to MFUNC0 */ 143 x = pci_conf_read(pc, tag, 0x8c); 144 x |= 0x02; 145 pci_conf_write(pc, tag, 0x8c, x); 146 147 tag = pci_make_tag(pc, 0, 0, 0); 148 x = pci_conf_read(pc, tag, PCI_ID_REG); 149 if (PCI_VENDOR(x) == PCI_VENDOR_MOT && 150 PCI_PRODUCT(x) == PCI_PRODUCT_MOT_MPC106) { 151 /* Set subordinate bus number to 1. */ 152 x = pci_conf_read(pc, tag, 0x40); 153 x |= 1 << 8; 154 pci_conf_write(pc, tag, 0x40, x); 155 } 156 } 157 } 158