/* $NetBSD: obs200_machdep.c,v 1.25 2021/09/04 13:36:07 rin Exp $ */ /* Original: machdep.c,v 1.3 2005/01/17 17:24:09 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: obs200_machdep.c,v 1.25 2021/09/04 13:36:07 rin Exp $"); #include "opt_ddb.h" #include <sys/param.h> #include <sys/bus.h> #include <sys/device.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/reboot.h> #include <sys/systm.h> #include <machine/obs200.h> #include <machine/century_bios.h> #include <powerpc/spr.h> #include <powerpc/ibm4xx/spr.h> #include <powerpc/ibm4xx/cpu.h> #include <powerpc/ibm4xx/dcr4xx.h> #include <powerpc/ibm4xx/ibm405gp.h> #include <powerpc/ibm4xx/tlb.h> #include <powerpc/ibm4xx/pci_machdep.h> #include <dev/pci/pciconf.h> #include <dev/pci/pcivar.h> #include "com.h" #if (NCOM > 0) #include <sys/termios.h> #include <powerpc/ibm4xx/dev/comopbvar.h> #include <dev/ic/comreg.h> #ifndef CONADDR #define CONADDR IBM405GP_UART0_BASE #endif #ifndef CONSPEED #define CONSPEED B9600 #endif #ifndef CONMODE /* 8N1 */ #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) #endif #endif /* NCOM */ #define TLB_PG_SIZE (16*1024*1024) void initppc(vaddr_t, vaddr_t, char *, void *); void initppc(vaddr_t startkernel, vaddr_t endkernel, char *args, void *info_block) { u_int32_t pllmode __debugused; u_int32_t psr __debugused; vaddr_t va; u_int memsize; /* Disable all external interrupts */ mtdcr(DCR_UIC0_BASE + DCR_UIC_ER, 0); pllmode = mfdcr(DCR_CPC0_PLLMR); psr = mfdcr(DCR_CPC0_PSR); /* Setup board from BIOS */ bios_board_init(info_block, startkernel); memsize = bios_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 physmem (see pmap_tlbmiss()). */ ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE, TLB_I | TLB_G); /* Initialize IBM405GPr CPU */ ibm40x_memsize_init(memsize, startkernel); ibm4xx_init(startkernel, endkernel, pic_ext_intr); #ifdef DEBUG bios_board_print(); printf(" PLL Mode Register = 0x%08x\n", pllmode); printf(" Chip Pin Strapping Register = 0x%08x\n", psr); #endif #ifdef DDB if (boothowto & RB_KDB) Debugger(); #endif } void consinit(void) { #if (NCOM > 0) com_opb_cnattach(OBS200_COM_FREQ, CONADDR, CONSPEED, CONMODE); #endif } /* * Machine dependent startup code. */ void cpu_startup(void) { /* * cpu common startup */ ibm4xx_cpu_startup("OpenBlockS S/R IBM PowerPC 405GP Board"); /* * Set up the board properties database. */ bios_board_info_set(); /* * Now that we have VM, malloc()s are OK in bus_space. */ bus_space_mallocok(); /* * no fake mapiodev */ fake_mapiodev = 0; } int ibm4xx_pci_bus_maxdevs(void *v, int busno) { /* * Bus number is irrelevant. Configuration Mechanism 1 is in * use, can have devices 0-32 (i.e. the `normal' range). */ return 31; } int ibm4xx_pci_intr_map(const 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 7 (Ext IRQ3): Realtek 8139 Ethernet * dev 8 (Ext IRQ0): PCI Connector */ static const int irqmap[15/*device*/][4/*pin*/] = { { -1, -1, -1, -1 }, /* 1: none */ { -1, -1, -1, -1 }, /* 2: none */ { -1, -1, -1, -1 }, /* 3: none */ { -1, -1, -1, -1 }, /* 4: none */ { -1, -1, -1, -1 }, /* 5: none */ { -1, -1, -1, -1 }, /* 6: none */ { 3, -1, -1, -1 }, /* 7: none */ { 0, -1, -1, -1 }, /* 8: none */ { -1, -1, -1, -1 }, /* 9: none */ { -1, -1, -1, -1 }, /* 10: none */ { -1, -1, -1, -1 }, /* 11: none */ { -1, -1, -1, -1 }, /* 12: none */ { -1, -1, -1, -1 }, /* 13: none */ { -1, -1, -1, -1 }, /* 14: none */ { -1, -1, -1, -1 }, /* 15: none */ }; 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 > 15)) { 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 ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz, int *iline) { static const int ilinemap[15/*device*/] = { -1, -1, -1, -1, /* device 1 - 4 */ -1, -1, 28, 25, /* device 5 - 8 */ -1, -1, -1, -1, /* device 9 - 12 */ -1, -1, -1, /* device 13 - 15 */ }; if (bus == 0) { if ((dev < 1) || (dev > 15)) { printf("pci_intr_map: bad device %d\n", dev); *iline = 0; return; } *iline = ilinemap[dev - 1]; } else *iline = 19 + ((swiz + dev + 1) & 3); }
