1 /* $NetBSD: kftxx.c,v 1.16 2011/06/14 15:34:23 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1997 by Matthew Jacob 5 * NASA AMES Research Center. 6 * 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 immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * KFTIA and KFTHA Bus Adapter Node for I/O hoses 35 * found on AlphaServer 8200 and 8400 systems. 36 * 37 * i.e., handler for all TLSB I/O nodes. 38 */ 39 40 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 41 42 __KERNEL_RCSID(0, "$NetBSD: kftxx.c,v 1.16 2011/06/14 15:34:23 matt Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 49 #include <machine/autoconf.h> 50 #include <machine/rpb.h> 51 #include <machine/pte.h> 52 53 #include <alpha/tlsb/tlsbreg.h> 54 #include <alpha/tlsb/tlsbvar.h> 55 #include <alpha/tlsb/kftxxreg.h> 56 #include <alpha/tlsb/kftxxvar.h> 57 #include <alpha/pci/dwlpxvar.h> 58 59 struct kft_softc { 60 device_t sc_dev; 61 int sc_node; /* TLSB node */ 62 uint16_t sc_dtype; /* device type */ 63 }; 64 65 #define KV(_addr) ((void *)ALPHA_PHYS_TO_K0SEG((_addr))) 66 67 static int kftmatch(device_t, cfdata_t, void *); 68 static void kftattach(device_t, device_t, void *); 69 70 CFATTACH_DECL_NEW(kft, sizeof(struct kft_softc), 71 kftmatch, kftattach, NULL, NULL); 72 73 static int kftprint(void *, const char *); 74 75 static int 76 kftprint(void *aux, const char *pnp) 77 { 78 register struct kft_dev_attach_args *ka = aux; 79 if (pnp) 80 aprint_normal("%s at %s", ka->ka_name, pnp); 81 aprint_normal(" hose %d", ka->ka_hosenum); 82 return (UNCONF); 83 } 84 85 static int 86 kftmatch(device_t parent, cfdata_t cf, void *aux) 87 { 88 struct tlsb_dev_attach_args *ta = aux; 89 if (TLDEV_ISIOPORT(ta->ta_dtype)) 90 return (1); 91 return (0); 92 } 93 94 static void 95 kftattach(device_t parent, device_t self, void *aux) 96 { 97 struct tlsb_dev_attach_args *ta = aux; 98 struct kft_softc *sc = device_private(self); 99 struct kft_dev_attach_args ka; 100 int hoseno; 101 102 sc->sc_dev = self; 103 sc->sc_node = ta->ta_node; 104 sc->sc_dtype = ta->ta_dtype; 105 106 aprint_normal("\n"); 107 108 for (hoseno = 0; hoseno < MAXHOSE; hoseno++) { 109 uint32_t value = 110 TLSB_GET_NODEREG(sc->sc_node, KFT_IDPNSEX(hoseno)); 111 if (value & 0x0E000000) { 112 aprint_error_dev(self, "Hose %d IDPNSE has %x\n", 113 hoseno, value); 114 continue; 115 } 116 if ((value & 0x1) != 0x0) { 117 aprint_error_dev(self, 118 "Hose %d has a Bad Cable (0x%x)\n", hoseno, value); 119 continue; 120 } 121 if ((value & 0x6) != 0x6) { 122 if (value) 123 aprint_error_dev(self, 124 "Hose %d is missing PWROK (0x%x)\n", 125 hoseno, value); 126 continue; 127 } 128 ka.ka_name = "dwlpx"; 129 ka.ka_node = sc->sc_node; 130 ka.ka_dtype = sc->sc_dtype; 131 ka.ka_hosenum = hoseno; 132 config_found(self, &ka, kftprint); 133 } 134 } 135