/* $NetBSD: obs266_machdep.c,v 1.27 2021/08/03 09:25:44 rin 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 1.27 2021/08/03 09:25:44 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/obs266.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/openbios.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)
{
vaddr_t va;
u_int memsize;
/* Setup board from OpenBIOS */
openbios_board_init(info_block);
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(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
openbios_board_print();
#endif
#ifdef DDB
if (boothowto & RB_KDB)
Debugger();
#endif
}
void
consinit(void)
{
#if (NCOM > 0)
com_opb_cnattach(OBS266_COM_FREQ, CONADDR, CONSPEED, CONMODE);
#endif
}
/*
* 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;
}
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 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
ibm4xx_pci_conf_interrupt(void *v, int bus, int dev, int pin, int swiz,
int *iline)
{
static const int ilinemap[4/*device*/] = {
28, 29, 30, 31
};
if ((dev < 1) || (dev > 4)) {
printf("%s: bad device %d\n", __func__, dev);
*iline = 0;
return;
}
*iline = ilinemap[dev - 1];
}
