/* $NetBSD: prompatch.c,v 1.5 2002/01/11 01:44:32 uwe Exp $ */ /* * Copyright (c) 2001 Valeriy E. Ushakov * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 #include #include void prom_patch(void); /* * Each patch entry is processed by: * printf(message); prom_interpret(patch); printf("\n"); */ struct patch_entry { char *message; char *patch; }; /* * PROM patches to apply to machine matching name/promvers. */ struct prom_patch { char *name; /* "name" of the root node */ int promvers; /* prom_version() */ struct patch_entry *patches; }; /* * Patches for JavaStation 1 with OBP 2.30 * NB: its romvec is version 3, so this is PROM_OBP_V3. */ static struct patch_entry patch_js1_obp[] = { /* * Can not remove a node, so just rename bogus /obio/zs so that it * does not get matched. */ { "zs: renaming out of the way", "\" /obio/zs@0,0\" find-device \" fakezs\" name" " \" /obio/zs@0,100000\" find-device \" fakezs\" name " " device-end" }, /* * Give "su" (com port) "interrupts" property. */ { "su: adding \"interrupts\"", "\" /obio/su\" find-device" " d# 13 \" interrupts\" integer-attribute" " device-end" }, /* * Create a bare-bones "8042" (pckbc) node - just enough to attach it. */ { "8042: creating node", "0 0 0 0 \" /obio\" begin-package" " \" 8042\" name" " 300060 0 8 reg" " d# 13 \" interrupts\" integer-attribute" " end-package" }, { NULL, NULL } }; /* patch_js1_obp */ /* * Patches for JavaStation 1 with OpenFirmware. * PROM in these machines is crippled in many ways. */ static struct patch_entry patch_js1_ofw[] = { /* * JS1/OFW has no cpu node in the device tree. Create one to save us a * _lot_ of headache in cpu.c and mainbus_attach. Mostly copied from * OBP2. While clock-frequency is usually at the root node, add it * here for brevity as kernel checks cpu node for this property anyway. */ { "cpu: creating node ", /* NB: space at the end is intentional */ "0 0 0 0 \" /\" begin-package" " \" FMI,MB86904\" device-name" /* NB: will print the name */ " \" cpu\" device-type" " 0 \" mid\" integer-property" " 8 \" sparc-version\" integer-property" " 4 \" version\" integer-property" " 0 \" implementation\" integer-property" " 4 \" psr-version\" integer-property" " 0 \" psr-implementation\" integer-property" " d# 100000000 \" clock-frequency\" integer-property" " d# 4096 \" page-size\" integer-property" " d# 256 \" mmu-nctx\" integer-property" " 2 \" ncaches\" integer-property" " d# 512 \" icache-nlines\" integer-property" " d# 32 \" icache-line-size\" integer-property" " 1 \" icache-associativity\" integer-property" " d# 512 \" dcache-nlines\" integer-property" " d# 16 \" dcache-line-size\" integer-property" " 1 \" dcache-associativity\" integer-property" " 0 0 \" cache-physical?\" property" " 0 0 \" cache-coherence?\" property" " end-package" }, /* * mk48txx_attach needs a model name, spare clockattach from guesswork. */ { "eeprom: adding \"model\"", "dev /obio/eeprom \" mk48t08\" model device-end" }, /* * "interrupts" property is bogusly zero, delete it and let * sbus_get_intr fallback to correct "intr" property */ { "le: deleting bogus \"interrupts\"", "dev /sbus/ledma/le \" interrupts\" delete-property device-end" }, /* * Give "su" (com port) "interrupts" property. */ { "su: adding \"interrupts\"", "dev /obio/su d# 13 \" interrupts\" integer-property device-end" }, /* * Give "8042" (pckbc) "interrupts" property. */ { "8042: adding \"interrupts\"", "dev /obio/8042 d# 13 \" interrupts\" integer-property device-end" }, { NULL, NULL } }; /* patch_js1_ofw */ static struct prom_patch prom_patch_tab[] = { { "SUNW,JavaStation-1", PROM_OBP_V3, patch_js1_obp }, { "SUNW,JDM1", PROM_OPENFIRM, patch_js1_ofw }, { NULL, 0, NULL } }; /* * Check if this machine needs tweaks to its PROM. It's simpler to * fix PROM than to invent workarounds in the kernel code. We do this * patching in the secondary boot to avoid wasting space in the kernel. */ void prom_patch(void) { char namebuf[32]; char *propval; struct prom_patch *p; if (prom_version() == PROM_OLDMON) return; /* don't bother - no forth in this */ propval = PROM_getpropstringA(prom_findroot(), "name", namebuf, sizeof(namebuf)); if (propval == NULL) return; for (p = prom_patch_tab; p->name != NULL; ++p) { if (p->promvers == prom_version() && strcmp(p->name, namebuf) == 0) { struct patch_entry *e; const char *promstr = "???"; switch (prom_version()) { case PROM_OBP_V0: promstr = "OBP0"; break; case PROM_OBP_V2: promstr = "OBP2"; break; case PROM_OBP_V3: promstr = "OBP3"; break; case PROM_OPENFIRM: promstr = "OFW"; break; } printf("Patching %s for %s\n", promstr, p->name); for (e = p->patches; e->message != NULL; ++e) { printf("%s", e->message); prom_interpret(e->patch); printf("\n"); } return; } } }