/* $NetBSD: obs266_machdep.c,v 1.6 2006/11/29 19:56:47 freza Exp $ */ /* Original: md_machdep.c,v 1.3 2005/01/24 18:47:37 shige Exp $ */ /* * Copyright 2001, 2002 Wasabi Systems, Inc. * All rights reserved. * * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ /* * Copyright (C) 1995, 1996 Wolfgang Solfrank. * Copyright (C) 1995, 1996 TooLs GmbH. * All rights reserved. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by TooLs GmbH. * 4. The name of TooLs GmbH may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: obs266_machdep.c,v 1.6 2006/11/29 19:56:47 freza Exp $"); #include "opt_compat_netbsd.h" #include "opt_ddb.h" #include "opt_ipkdb.h" #include <sys/param.h> #include <sys/kernel.h> #include <sys/ksyms.h> #include <sys/mount.h> #include <sys/reboot.h> #include <sys/systm.h> #include <uvm/uvm.h> #include <uvm/uvm_extern.h> #include <machine/bus.h> #include <machine/cpu.h> #include <machine/obs266.h> #include <powerpc/spr.h> #include <dev/pci/pcivar.h> #include <dev/pci/pciconf.h> #include <powerpc/ibm4xx/dcr405gp.h> #include <powerpc/ibm4xx/openbios.h> #include "ksyms.h" #define TLB_PG_SIZE (16*1024*1024) /* * Global variables used here and there */ char bootpath[256]; extern paddr_t msgbuf_paddr; #if NKSYMS || defined(DDB) || defined(LKM) void *startsym, *endsym; #endif void initppc(u_int, u_int, char *, void *); int lcsplx(int); void initppc(u_int startkernel, u_int endkernel, char *args, void *info_block) { vaddr_t va; u_int memsize; /* Disable all external interrupts */ mtdcr(DCR_UIC0_ER, 0); /* Setup board from OpenBIOS */ openbios_board_init(info_block, startkernel); memsize = openbios_board_memsize_get(); /* Linear map kernel memory */ for (va = 0; va < endkernel; va += TLB_PG_SIZE) ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX); /* Map console after RAM (see pmap_tlbmiss()) */ ppc4xx_tlb_reserve(OBS405_CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, TLB_I | TLB_G); /* Initialize IBM405GPr CPU */ ibm40x_memsize_init(memsize, startkernel); ibm4xx_init((void (*)(void))ext_intr); /* * Set the page size. */ uvm_setpagesize(); /* * Initialize pmap module. */ pmap_bootstrap(startkernel, endkernel); #ifdef DEBUG openbios_board_print(); #endif #if NKSYMS || defined(DDB) || defined(LKM) ksyms_init((int)((u_int)endsym - (u_int)startsym), startsym, endsym); #endif #ifdef DDB if (boothowto & RB_KDB) Debugger(); #endif #ifdef IPKDB /* * Now trap to IPKDB */ ipkdb_init(); if (boothowto & RB_KDB) ipkdb_connect(0); #endif } void consinit(void) { obs405_consinit(OBS266_COM_FREQ); } int lcsplx(int ipl) { return spllower(ipl); /* XXX */ } /* * Machine dependent startup code. */ void cpu_startup(void) { /* * cpu common startup */ ibm4xx_cpu_startup("OpenBlockS266 IBM PowerPC 405GPr Board"); /* * Set up the board properties database. */ openbios_board_info_set(); /* * Now that we have VM, malloc()s are OK in bus_space. */ bus_space_mallocok(); /* * no fake mapiodev */ fake_mapiodev = 0; } /* * Halt or reboot the machine after syncing/dumping according to howto. */ void cpu_reboot(int howto, char *what) { static int syncing; static char str[256]; char *ap = str, *ap1 = ap; boothowto = howto; if (!cold && !(howto & RB_NOSYNC) && !syncing) { syncing = 1; vfs_shutdown(); /* sync */ resettodr(); /* set wall clock */ } splhigh(); if (!cold && (howto & RB_DUMP)) ibm4xx_dumpsys(); doshutdownhooks(); if ((howto & RB_POWERDOWN) == RB_POWERDOWN) { /* Power off here if we know how...*/ } if (howto & RB_HALT) { printf("halted\n\n"); #if 0 goto reboot; /* XXX for now... */ #endif #ifdef DDB printf("dropping to debugger\n"); while(1) Debugger(); #endif } printf("rebooting\n\n"); if (what && *what) { if (strlen(what) > sizeof str - 5) printf("boot string too large, ignored\n"); else { strcpy(str, what); ap1 = ap = str + strlen(str); *ap++ = ' '; } } *ap++ = '-'; if (howto & RB_SINGLE) *ap++ = 's'; if (howto & RB_KDB) *ap++ = 'd'; *ap++ = 0; if (ap[-2] == '-') *ap1 = 0; /* flush cache for msgbuf */ __syncicache((void *)msgbuf_paddr, round_page(MSGBUFSIZE)); #if 0 reboot: #endif ppc4xx_reset(); printf("ppc4xx_reset() failed!\n"); #ifdef DDB while(1) Debugger(); #else while (1) /* nothing */; #endif } int pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) { /* * We need to map the interrupt pin to the interrupt bit * in the UIC associated with it. * * This platform has 4 PCI devices. * # External IRQ Mappings: * dev 1 (Ext IRQ3): PCI Connector * dev 2 (Ext IRQ4): PCI Connector * dev 3 (Ext IRQ5): HPT IDE Controller * dev 4 (Ext IRQ6): Davicom Ethernet */ static const int irqmap[4/*device*/][4/*pin*/] = { { 3, 3, 3, 3 }, /* 1: PCI Connector 1 */ { 4, 4, 4, 4 }, /* 2: PCI Connector 2 */ { 5, 5, -1, -1 }, /* 3: HPT IDE Controller */ { 6, 6, -1, -1 }, /* 4: Damicom Ethernet */ }; int pin, dev, irq; pin = pa->pa_intrpin; dev = pa->pa_device; *ihp = -1; /* if interrupt pin not used... */ if (pin == 0) return 1; if (pin > 4) { printf("pci_intr_map: bad interrupt pin %d\n", pin); return 1; } if ((dev < 1) || (dev > 4)) { printf("pci_intr_map: bad device %d\n", dev); return 1; } if ((irq = irqmap[dev - 1][pin - 1]) == -1) { printf("pci_intr_map: no IRQ routing for device %d pin %d\n", dev, pin); return 1; } *ihp = irq + 25; return 0; } void pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, int swiz, int *iline) { static const int ilinemap[4/*device*/] = { 3, 4, 5 ,6 }; if ((dev < 1) || (dev > 4)) { printf("pci_intr_map: bad device %d\n", dev); *iline = 0; return; } *iline = ilinemap[dev - 1] + 25; }