sbgbus.c revision 1.1.10.2
1 1.1.10.2 jdolecek /* $NetBSD: sbgbus.c,v 1.1.10.2 2002/06/23 17:38:06 jdolecek Exp $ */ 2 1.1.10.2 jdolecek 3 1.1.10.2 jdolecek /* 4 1.1.10.2 jdolecek * Copyright 2000, 2001 5 1.1.10.2 jdolecek * Broadcom Corporation. All rights reserved. 6 1.1.10.2 jdolecek * 7 1.1.10.2 jdolecek * This software is furnished under license and may be used and copied only 8 1.1.10.2 jdolecek * in accordance with the following terms and conditions. Subject to these 9 1.1.10.2 jdolecek * conditions, you may download, copy, install, use, modify and distribute 10 1.1.10.2 jdolecek * modified or unmodified copies of this software in source and/or binary 11 1.1.10.2 jdolecek * form. No title or ownership is transferred hereby. 12 1.1.10.2 jdolecek * 13 1.1.10.2 jdolecek * 1) Any source code used, modified or distributed must reproduce and 14 1.1.10.2 jdolecek * retain this copyright notice and list of conditions as they appear in 15 1.1.10.2 jdolecek * the source file. 16 1.1.10.2 jdolecek * 17 1.1.10.2 jdolecek * 2) No right is granted to use any trade name, trademark, or logo of 18 1.1.10.2 jdolecek * Broadcom Corporation. Neither the "Broadcom Corporation" name nor any 19 1.1.10.2 jdolecek * trademark or logo of Broadcom Corporation may be used to endorse or 20 1.1.10.2 jdolecek * promote products derived from this software without the prior written 21 1.1.10.2 jdolecek * permission of Broadcom Corporation. 22 1.1.10.2 jdolecek * 23 1.1.10.2 jdolecek * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED 24 1.1.10.2 jdolecek * WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF 25 1.1.10.2 jdolecek * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR 26 1.1.10.2 jdolecek * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE 27 1.1.10.2 jdolecek * FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE 28 1.1.10.2 jdolecek * LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 1.1.10.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 1.1.10.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 31 1.1.10.2 jdolecek * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 1.1.10.2 jdolecek * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 33 1.1.10.2 jdolecek * OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 1.1.10.2 jdolecek */ 35 1.1.10.2 jdolecek 36 1.1.10.2 jdolecek #include <sys/param.h> 37 1.1.10.2 jdolecek #include <sys/systm.h> 38 1.1.10.2 jdolecek #include <sys/device.h> 39 1.1.10.2 jdolecek 40 1.1.10.2 jdolecek #include <machine/locore.h> 41 1.1.10.2 jdolecek #include <machine/sb1250/sb1250_regs.h> 42 1.1.10.2 jdolecek #include <machine/sb1250/sb1250_genbus.h> 43 1.1.10.2 jdolecek #include <sbmips/dev/sbobio/sbobiovar.h> 44 1.1.10.2 jdolecek #include <sbmips/dev/sbgbus/sbgbusvar.h> 45 1.1.10.2 jdolecek 46 1.1.10.2 jdolecek extern struct cfdriver sbgbus_cd; 47 1.1.10.2 jdolecek 48 1.1.10.2 jdolecek static int sbgbus_match(struct device *, struct cfdata *, void *); 49 1.1.10.2 jdolecek static void sbgbus_attach(struct device *, struct device *, void *); 50 1.1.10.2 jdolecek 51 1.1.10.2 jdolecek const struct cfattach sbgbus_ca = { 52 1.1.10.2 jdolecek sizeof(struct device), sbgbus_match, sbgbus_attach, 53 1.1.10.2 jdolecek }; 54 1.1.10.2 jdolecek 55 1.1.10.2 jdolecek static int sbgbussearch(struct device *, struct cfdata *, void *); 56 1.1.10.2 jdolecek static int sbgbusprint(void *, const char *); 57 1.1.10.2 jdolecek 58 1.1.10.2 jdolecek static int 59 1.1.10.2 jdolecek sbgbus_match(struct device *parent, struct cfdata *match, void *aux) 60 1.1.10.2 jdolecek { 61 1.1.10.2 jdolecek struct sbobio_attach_args *sap = aux; 62 1.1.10.2 jdolecek 63 1.1.10.2 jdolecek if (sap->sa_locs.sa_type != SBOBIO_DEVTYPE_GBUS) 64 1.1.10.2 jdolecek return (0); 65 1.1.10.2 jdolecek 66 1.1.10.2 jdolecek return 1; 67 1.1.10.2 jdolecek } 68 1.1.10.2 jdolecek 69 1.1.10.2 jdolecek static void 70 1.1.10.2 jdolecek sbgbus_attach(struct device *parent, struct device *self, void *aux) 71 1.1.10.2 jdolecek { 72 1.1.10.2 jdolecek 73 1.1.10.2 jdolecek /* Configure children using indirect configuration. */ 74 1.1.10.2 jdolecek config_search(sbgbussearch, self, NULL); 75 1.1.10.2 jdolecek } 76 1.1.10.2 jdolecek 77 1.1.10.2 jdolecek static int 78 1.1.10.2 jdolecek sbgbusprint(void *aux, const char *pnp) 79 1.1.10.2 jdolecek { 80 1.1.10.2 jdolecek struct sbgbus_attach_args *sga = aux; 81 1.1.10.2 jdolecek 82 1.1.10.2 jdolecek if (sga->sga_chipsel != SBGBUS_CHIPSEL_NONE) 83 1.1.10.2 jdolecek printf(" chipsel %u", sga->sga_chipsel); 84 1.1.10.2 jdolecek if (sga->sga_offset != 0) 85 1.1.10.2 jdolecek printf(" offset 0x%x", sga->sga_offset); 86 1.1.10.2 jdolecek if (sga->sga_intr[0] != SBGBUS_INTR_NONE) { 87 1.1.10.2 jdolecek printf(" intr %u", sga->sga_intr[0]); 88 1.1.10.2 jdolecek if (sga->sga_intr[1] != SBGBUS_INTR_NONE) { 89 1.1.10.2 jdolecek printf(",%u", sga->sga_intr[1]); 90 1.1.10.2 jdolecek } 91 1.1.10.2 jdolecek } 92 1.1.10.2 jdolecek return (UNCONF); 93 1.1.10.2 jdolecek } 94 1.1.10.2 jdolecek 95 1.1.10.2 jdolecek static int 96 1.1.10.2 jdolecek sbgbussearch(struct device *parent, struct cfdata *cf, void *aux) 97 1.1.10.2 jdolecek { 98 1.1.10.2 jdolecek struct sbgbus_attach_args sga; 99 1.1.10.2 jdolecek int tryagain; 100 1.1.10.2 jdolecek 101 1.1.10.2 jdolecek do { 102 1.1.10.2 jdolecek /* Fill in sga */ 103 1.1.10.2 jdolecek sga.sga_chipsel = cf->cf_loc[SBGBUSCF_CHIPSEL]; 104 1.1.10.2 jdolecek sga.sga_offset = cf->cf_loc[SBGBUSCF_OFFSET]; 105 1.1.10.2 jdolecek sga.sga_intr[0] = cf->cf_loc[SBGBUSCF_INTR]; 106 1.1.10.2 jdolecek sga.sga_intr[1] = cf->cf_loc[SBGBUSCF_INTR_1]; 107 1.1.10.2 jdolecek 108 1.1.10.2 jdolecek /* Some quick sanity checks. */ 109 1.1.10.2 jdolecek if (sga.sga_intr[0] == SBGBUS_INTR_NONE && 110 1.1.10.2 jdolecek sga.sga_intr[1] != SBGBUS_INTR_NONE) { 111 1.1.10.2 jdolecek /* XXX probably should print */ 112 1.1.10.2 jdolecek return (0); 113 1.1.10.2 jdolecek } 114 1.1.10.2 jdolecek if (sga.sga_chipsel == SBGBUS_CHIPSEL_NONE && 115 1.1.10.2 jdolecek sga.sga_offset != 0) { 116 1.1.10.2 jdolecek /* XXX probably should print */ 117 1.1.10.2 jdolecek return (0); 118 1.1.10.2 jdolecek } 119 1.1.10.2 jdolecek if (sga.sga_chipsel >= IO_EXT_CFG_COUNT) { 120 1.1.10.2 jdolecek /* XXX probably should print */ 121 1.1.10.2 jdolecek return (0); 122 1.1.10.2 jdolecek } 123 1.1.10.2 jdolecek 124 1.1.10.2 jdolecek /* XXX check for PCMCIA. */ 125 1.1.10.2 jdolecek 126 1.1.10.2 jdolecek if (sga.sga_chipsel == SBGBUS_CHIPSEL_NONE) { 127 1.1.10.2 jdolecek sga.sga_startphys = 0; 128 1.1.10.2 jdolecek sga.sga_size = 0; 129 1.1.10.2 jdolecek } else { 130 1.1.10.2 jdolecek uint64_t rv; 131 1.1.10.2 jdolecek 132 1.1.10.2 jdolecek rv = mips3_ld((void *)MIPS_PHYS_TO_KSEG1( 133 1.1.10.2 jdolecek A_IO_EXT_CS_BASE(sga.sga_chipsel) + 134 1.1.10.2 jdolecek R_IO_EXT_START_ADDR)); 135 1.1.10.2 jdolecek sga.sga_startphys = (rv & M_IO_START_ADDR) << S_IO_ADDRBASE; 136 1.1.10.2 jdolecek rv = mips3_ld((void *)MIPS_PHYS_TO_KSEG1( 137 1.1.10.2 jdolecek A_IO_EXT_CS_BASE(sga.sga_chipsel) + 138 1.1.10.2 jdolecek R_IO_EXT_MULT_SIZE)); 139 1.1.10.2 jdolecek sga.sga_size = (rv & M_IO_MULT_SIZE) << S_IO_REGSIZE; 140 1.1.10.2 jdolecek 141 1.1.10.2 jdolecek /* Make sure that region is enabled. */ 142 1.1.10.2 jdolecek if (sga.sga_size == 0 || 143 1.1.10.2 jdolecek sga.sga_startphys < A_PHYS_GENBUS || 144 1.1.10.2 jdolecek sga.sga_startphys >= A_PHYS_GENBUS_END) 145 1.1.10.2 jdolecek return (0); 146 1.1.10.2 jdolecek 147 1.1.10.2 jdolecek /* Report to child only the space they can access. */ 148 1.1.10.2 jdolecek if (sga.sga_startphys + sga.sga_size > A_PHYS_GENBUS_END) 149 1.1.10.2 jdolecek sga.sga_size = A_PHYS_GENBUS_END - sga.sga_startphys; 150 1.1.10.2 jdolecek } 151 1.1.10.2 jdolecek 152 1.1.10.2 jdolecek tryagain = 0; 153 1.1.10.2 jdolecek if ((*cf->cf_attach->ca_match)(parent, cf, &sga) > 0) { 154 1.1.10.2 jdolecek config_attach(parent, cf, &sga, sbgbusprint); 155 1.1.10.2 jdolecek tryagain = (cf->cf_fstate == FSTATE_STAR); 156 1.1.10.2 jdolecek } 157 1.1.10.2 jdolecek } while (tryagain); 158 1.1.10.2 jdolecek 159 1.1.10.2 jdolecek return (0); 160 1.1.10.2 jdolecek } 161
Indexes created Wed Oct 22 13:09:56 GMT 2025