/* $NetBSD: ttwoga.c,v 1.15 2012/02/06 02:14:15 matt Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "opt_dec_2100_a500.h" #include "opt_dec_2100a_a500.h" #include /* RCS ID & Copyright macro defns */ __KERNEL_RCSID(0, "$NetBSD: ttwoga.c,v 1.15 2012/02/06 02:14:15 matt Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(DEC_2100_A500) || defined(DEC_2100A_A500) #include #endif #include "locators.h" int ttwogamatch(device_t, cfdata_t, void *); void ttwogaattach(device_t, device_t, void *); CFATTACH_DECL_NEW(ttwoga, 0, ttwogamatch, ttwogaattach, NULL, NULL); int ttwogaprint(void *, const char *); int ttwopcimatch(device_t, cfdata_t, void *); void ttwopciattach(device_t, device_t, void *); CFATTACH_DECL_NEW(ttwopci, 0, ttwopcimatch, ttwopciattach, NULL, NULL); int ttwosableioprint(void *, const char *); /* * There can be only one, but it might have 2 primary PCI busses. */ int ttwogafound; struct ttwoga_config ttwoga_configuration[2]; /* CBUS address bias for Gamma systems. */ bus_addr_t ttwoga_gamma_cbus_bias; #define GIGABYTE (1024UL * 1024UL * 1024UL) #define MEGABYTE (1024UL * 1024UL) const struct ttwoga_sysmap ttwoga_sysmap[2] = { /* Base System size Bus size */ { T2_PCI0_SIO_BASE, 256UL * MEGABYTE, 8UL * MEGABYTE, T2_PCI0_SMEM_BASE, 4UL * GIGABYTE, 128UL * MEGABYTE, T2_PCI0_DMEM_BASE, 1UL * GIGABYTE, 1UL * GIGABYTE, T2_PCI0_CONF_BASE, }, { T2_PCI1_SIO_BASE, 256UL * MEGABYTE, 8UL * MEGABYTE, T2_PCI1_SMEM_BASE, 2UL * GIGABYTE, 64UL * MEGABYTE, T2_PCI1_DMEM_BASE, 2UL * GIGABYTE, 2UL * GIGABYTE, T2_PCI1_CONF_BASE, }, }; #undef GIGABYTE #undef MEGABYTE int ttwogamatch(device_t parent, cfdata_t match, void *aux) { struct mainbus_attach_args *ma = aux; /* Make sure that we're looking for a T2 Gate Array. */ if (strcmp(ma->ma_name, match->cf_name) != 0) return (0); if (ttwogafound) return (0); return (1); } void ttwogaattach(device_t parent, device_t self, void *aux) { struct pcibus_attach_args pba; int hose; printf("\n"); /* note that we've attached the chipset; can't have 2 T2s */ ttwogafound = 1; /* * Don't do much here; real work is deferred to the ttwopci * layer. */ for (hose = 0; hose < 1 /* XXX */; hose++) { #if 0 /* XXX */ if (badaddr(_T2GA(hose, T2_IOCSR), sizeof(uint64_t))) continue; #endif memset(&pba, 0, sizeof(pba)); pba.pba_bus = hose; (void) config_found_ia(self, "ttwoga", &pba, ttwogaprint); } } int ttwogaprint(void *aux, const char *pnp) { struct pcibus_attach_args *pba = aux; if (pnp) aprint_normal("ttwopci at %s", pnp); aprint_normal(" hose %d", pba->pba_bus); return (UNCONF); } /* * Set up the chipset's function pointers. */ struct ttwoga_config * ttwoga_init(int hose, int mallocsafe) { struct ttwoga_config *tcp; if (hose < 0 || hose > 1) panic("ttwoga_init: bad hose # %d", hose); tcp = &ttwoga_configuration[hose]; tcp->tc_hose = hose; tcp->tc_sysmap = &ttwoga_sysmap[hose]; /* * Sable-Gamma has a CBUS address bias. */ ttwoga_gamma_cbus_bias = (alpha_implver() == ALPHA_IMPLVER_EV5) ? T2_GAMMA_CBUS_BIAS : 0; alpha_mb(); tcp->tc_io_bus_start = (T2GA(tcp, T2_HAE0_2) & HAE0_2_PUA2) << 23; tcp->tc_d_mem_bus_start = (T2GA(tcp, T2_HAE0_4) & HAE0_4_PUA1) << 30; tcp->tc_s_mem_bus_start = (T2GA(tcp, T2_HAE0_1) & HAE0_1_PUA1) << 27; tcp->tc_rev = (T2GA(tcp, T2_IOCSR) & IOCSR_TRN) >> IOCSR_TRN_SHIFT; if (tcp->tc_initted == 0) { /* don't do these twice since they set up extents */ ttwoga_bus_io_init(&tcp->tc_iot, tcp); ttwoga_bus_mem_init(&tcp->tc_memt, tcp); } tcp->tc_mallocsafe = mallocsafe; ttwoga_pci_init(&tcp->tc_pc, tcp); tcp->tc_initted = 1; return (tcp); } int ttwopcimatch(device_t parent, cfdata_t match, void *aux) { struct pcibus_attach_args *pba = aux; if (match->cf_loc[PCIBUSCF_BUS] != PCIBUSCF_BUS_DEFAULT && match->cf_loc[PCIBUSCF_BUS] != pba->pba_bus) return (0); return (1); } void ttwopciattach(device_t parent, device_t self, void *aux) { struct pcibus_attach_args *pba = aux, npba; struct ttwoga_config *tcp; /* * set up the chipset's info; done one at console init time * (maybe), but doesn't hurt to do it twice. */ tcp = ttwoga_init(pba->pba_bus, 1); ttwoga_dma_init(tcp); aprint_normal(": %s Gate Array rev. %d\n", (tcp->tc_rev < TRN_T3) ? "T2" : "T3 or T4", tcp->tc_rev); if (tcp->tc_rev < 1) aprint_normal_dev(self, "WARNING: T2 NOT PASS2... NO BETS...\n"); switch (cputype) { #if defined(DEC_2100_A500) || defined(DEC_2100A_A500) case ST_DEC_2100_A500: case ST_DEC_2100A_A500: pci_2100_a500_pickintr(tcp); break; #endif default: panic("ttwogaattach: shouldn't be here, really..."); } npba.pba_iot = &tcp->tc_iot; npba.pba_memt = &tcp->tc_memt; npba.pba_dmat = alphabus_dma_get_tag(&tcp->tc_dmat_direct, ALPHA_BUS_PCI); npba.pba_dmat64 = NULL; npba.pba_pc = &tcp->tc_pc; npba.pba_bus = 0; npba.pba_bridgetag = NULL; npba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY; /* * Hose 0 has the STDIO module. */ if (pba->pba_bus == 0) { (void) config_found_ia(self, "sableiobus", &npba, ttwosableioprint); } (void) config_found_ia(self, "pcibus", &npba, pcibusprint); } int ttwosableioprint(void *aux, const char *pnp) { struct pcibus_attach_args *pba = aux; if (pnp) aprint_normal("sableio at %s", pnp); aprint_normal(" bus %d", pba->pba_bus); return (UNCONF); }