172 lines
4.7 KiB
C
172 lines
4.7 KiB
C
/* $NetBSD: ka410.c,v 1.24 2000/06/29 07:14:25 mrg Exp $ */
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/*
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* Copyright (c) 1996 Ludd, University of Lule}, Sweden.
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* All rights reserved.
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*
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* This code is derived from software contributed to Ludd by Bertram Barth.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of
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* Lule}, Sweden and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/device.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <uvm/uvm_extern.h>
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#include <machine/pte.h>
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#include <machine/cpu.h>
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#include <machine/mtpr.h>
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#include <machine/sid.h>
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#include <machine/pmap.h>
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#include <machine/nexus.h>
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#include <machine/uvax.h>
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#include <machine/ka410.h>
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#include <machine/ka420.h>
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#include <machine/clock.h>
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#include <machine/vsbus.h>
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static void ka410_conf __P((void));
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static void ka410_memerr __P((void));
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static int ka410_mchk __P((caddr_t));
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static void ka410_halt __P((void));
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static void ka410_reboot __P((int));
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static void ka41_cache_enable __P((void));
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static void ka410_clrf __P((void));
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static caddr_t l2cache; /* mapped in address */
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static long *cacr; /* l2csche ctlr reg */
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/*
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* Declaration of 410-specific calls.
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*/
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struct cpu_dep ka410_calls = {
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0,
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ka410_mchk,
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ka410_memerr,
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ka410_conf,
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chip_clkread,
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chip_clkwrite,
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1, /* ~VUPS */
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2, /* SCB pages */
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ka410_halt,
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ka410_reboot,
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ka410_clrf,
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NULL,
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CPU_RAISEIPL,
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};
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void
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ka410_conf()
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{
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struct vs_cpu *ka410_cpu;
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ka410_cpu = (struct vs_cpu *)vax_map_physmem(VS_REGS, 1);
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switch (vax_cputype) {
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case VAX_TYP_UV2:
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ka410_cpu->vc_410mser = 1;
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printf("cpu: KA410\n");
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break;
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case VAX_TYP_CVAX:
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printf("cpu: KA41/42\n");
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ka410_cpu->vc_vdcorg = 0; /* XXX */
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ka410_cpu->vc_parctl = PARCTL_CPEN | PARCTL_DPEN ;
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printf("cpu: Enabling primary cache, ");
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mtpr(KA420_CADR_S2E|KA420_CADR_S1E|KA420_CADR_ISE|KA420_CADR_DSE, PR_CADR);
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if (vax_confdata & KA420_CFG_CACHPR) {
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l2cache = (void *)vax_map_physmem(KA420_CH2_BASE,
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(KA420_CH2_SIZE / VAX_NBPG));
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cacr = (void *)vax_map_physmem(KA420_CACR, 1);
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printf("secondary cache\n");
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ka41_cache_enable();
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} else
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printf("no secondary cache present\n");
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}
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/* Done with ka410_cpu - release it */
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vax_unmap_physmem((vaddr_t)ka410_cpu, 1);
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/*
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* Setup parameters necessary to read time from clock chip.
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*/
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clk_adrshift = 1; /* Addressed at long's... */
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clk_tweak = 2; /* ...and shift two */
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clk_page = (short *)vax_map_physmem(KA420_WAT_BASE, 1);
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}
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void
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ka41_cache_enable()
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{
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*cacr = KA420_CACR_TPE; /* Clear any error, disable cache */
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bzero(l2cache, KA420_CH2_SIZE); /* Clear whole cache */
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*cacr = KA420_CACR_CEN; /* Enable cache */
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}
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void
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ka410_memerr()
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{
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printf("Memory err!\n");
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}
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int
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ka410_mchk(addr)
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caddr_t addr;
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{
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panic("Machine check");
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return 0;
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}
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static void
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ka410_halt()
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{
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asm("movl $0xc, (%0)"::"r"((int)clk_page + 0x38)); /* Don't ask */
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asm("halt");
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}
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static void
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ka410_reboot(arg)
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int arg;
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{
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asm("movl $0xc, (%0)"::"r"((int)clk_page + 0x38)); /* Don't ask */
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asm("halt");
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}
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static void
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ka410_clrf()
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{
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struct ka410_clock *clk = (void *)clk_page;
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/*
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* Clear restart and boot in progress flags
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* in the CPMBX. (ie. clear bits 4 and 5)
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*/
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clk->cpmbx = (clk->cpmbx & ~0x30);
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}
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