232 lines
6.2 KiB
C
232 lines
6.2 KiB
C
/* $NetBSD: prompatch.c,v 1.5 2002/01/11 01:44:32 uwe Exp $ */
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/*
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* Copyright (c) 2001 Valeriy E. Ushakov
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* All rights reserved.
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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. 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 <lib/libsa/stand.h>
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#include <machine/promlib.h>
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void prom_patch(void);
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/*
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* Each patch entry is processed by:
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* printf(message); prom_interpret(patch); printf("\n");
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*/
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struct patch_entry {
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char *message;
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char *patch;
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};
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/*
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* PROM patches to apply to machine matching name/promvers.
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*/
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struct prom_patch {
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char *name; /* "name" of the root node */
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int promvers; /* prom_version() */
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struct patch_entry *patches;
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};
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/*
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* Patches for JavaStation 1 with OBP 2.30
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* NB: its romvec is version 3, so this is PROM_OBP_V3.
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*/
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static struct patch_entry patch_js1_obp[] = {
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/*
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* Can not remove a node, so just rename bogus /obio/zs so that it
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* does not get matched.
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*/
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{ "zs: renaming out of the way",
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"\" /obio/zs@0,0\" find-device \" fakezs\" name"
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" \" /obio/zs@0,100000\" find-device \" fakezs\" name "
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" device-end"
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},
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/*
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* Give "su" (com port) "interrupts" property.
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*/
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{ "su: adding \"interrupts\"",
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"\" /obio/su\" find-device"
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" d# 13 \" interrupts\" integer-attribute"
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" device-end"
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},
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/*
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* Create a bare-bones "8042" (pckbc) node - just enough to attach it.
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*/
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{ "8042: creating node",
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"0 0 0 0 \" /obio\" begin-package"
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" \" 8042\" name"
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" 300060 0 8 reg"
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" d# 13 \" interrupts\" integer-attribute"
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" end-package"
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},
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{ NULL, NULL }
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}; /* patch_js1_obp */
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/*
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* Patches for JavaStation 1 with OpenFirmware.
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* PROM in these machines is crippled in many ways.
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*/
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static struct patch_entry patch_js1_ofw[] = {
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/*
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* JS1/OFW has no cpu node in the device tree. Create one to save us a
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* _lot_ of headache in cpu.c and mainbus_attach. Mostly copied from
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* OBP2. While clock-frequency is usually at the root node, add it
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* here for brevity as kernel checks cpu node for this property anyway.
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*/
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{ "cpu: creating node ", /* NB: space at the end is intentional */
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"0 0 0 0 \" /\" begin-package"
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" \" FMI,MB86904\" device-name" /* NB: will print the name */
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" \" cpu\" device-type"
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" 0 \" mid\" integer-property"
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" 8 \" sparc-version\" integer-property"
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" 4 \" version\" integer-property"
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" 0 \" implementation\" integer-property"
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" 4 \" psr-version\" integer-property"
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" 0 \" psr-implementation\" integer-property"
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" d# 100000000 \" clock-frequency\" integer-property"
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" d# 4096 \" page-size\" integer-property"
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" d# 256 \" mmu-nctx\" integer-property"
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" 2 \" ncaches\" integer-property"
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" d# 512 \" icache-nlines\" integer-property"
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" d# 32 \" icache-line-size\" integer-property"
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" 1 \" icache-associativity\" integer-property"
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" d# 512 \" dcache-nlines\" integer-property"
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" d# 16 \" dcache-line-size\" integer-property"
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" 1 \" dcache-associativity\" integer-property"
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" 0 0 \" cache-physical?\" property"
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" 0 0 \" cache-coherence?\" property"
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" end-package"
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},
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/*
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* mk48txx_attach needs a model name, spare clockattach from guesswork.
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*/
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{ "eeprom: adding \"model\"",
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"dev /obio/eeprom \" mk48t08\" model device-end"
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},
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/*
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* "interrupts" property is bogusly zero, delete it and let
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* sbus_get_intr fallback to correct "intr" property
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*/
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{ "le: deleting bogus \"interrupts\"",
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"dev /sbus/ledma/le \" interrupts\" delete-property device-end"
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},
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/*
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* Give "su" (com port) "interrupts" property.
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*/
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{ "su: adding \"interrupts\"",
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"dev /obio/su d# 13 \" interrupts\" integer-property device-end"
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},
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/*
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* Give "8042" (pckbc) "interrupts" property.
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*/
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{ "8042: adding \"interrupts\"",
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"dev /obio/8042 d# 13 \" interrupts\" integer-property device-end"
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},
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{ NULL, NULL }
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}; /* patch_js1_ofw */
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static struct prom_patch prom_patch_tab[] = {
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{ "SUNW,JavaStation-1", PROM_OBP_V3, patch_js1_obp },
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{ "SUNW,JDM1", PROM_OPENFIRM, patch_js1_ofw },
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{ NULL, 0, NULL }
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};
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/*
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* Check if this machine needs tweaks to its PROM. It's simpler to
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* fix PROM than to invent workarounds in the kernel code. We do this
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* patching in the secondary boot to avoid wasting space in the kernel.
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*/
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void
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prom_patch(void)
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{
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char namebuf[32];
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char *propval;
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struct prom_patch *p;
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if (prom_version() == PROM_OLDMON)
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return; /* don't bother - no forth in this */
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propval = PROM_getpropstringA(prom_findroot(), "name",
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namebuf, sizeof(namebuf));
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if (propval == NULL)
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return;
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for (p = prom_patch_tab; p->name != NULL; ++p) {
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if (p->promvers == prom_version()
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&& strcmp(p->name, namebuf) == 0) {
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struct patch_entry *e;
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const char *promstr = "???";
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switch (prom_version()) {
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case PROM_OBP_V0:
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promstr = "OBP0";
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break;
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case PROM_OBP_V2:
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promstr = "OBP2";
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break;
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case PROM_OBP_V3:
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promstr = "OBP3";
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break;
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case PROM_OPENFIRM:
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promstr = "OFW";
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break;
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}
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printf("Patching %s for %s\n", promstr, p->name);
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for (e = p->patches; e->message != NULL; ++e) {
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printf("%s", e->message);
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prom_interpret(e->patch);
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printf("\n");
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}
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return;
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}
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}
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}
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