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prompatch.c revision 1.3
      1  1.3  uwe /*	$NetBSD: prompatch.c,v 1.3 2001/11/22 04:18:28 uwe Exp $ */
      2  1.1  uwe 
      3  1.1  uwe /*
      4  1.1  uwe  * Copyright (c) 2001 Valeriy E. Ushakov
      5  1.1  uwe  * All rights reserved.
      6  1.1  uwe  *
      7  1.1  uwe  * Redistribution and use in source and binary forms, with or without
      8  1.1  uwe  * modification, are permitted provided that the following conditions
      9  1.1  uwe  * are met:
     10  1.1  uwe  * 1. Redistributions of source code must retain the above copyright
     11  1.1  uwe  *    notice, this list of conditions and the following disclaimer.
     12  1.1  uwe  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1  uwe  *    notice, this list of conditions and the following disclaimer in the
     14  1.1  uwe  *    documentation and/or other materials provided with the distribution.
     15  1.1  uwe  * 3. The name of the author may not be used to endorse or promote products
     16  1.1  uwe  *    derived from this software without specific prior written permission
     17  1.1  uwe  *
     18  1.1  uwe  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  1.1  uwe  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  1.1  uwe  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  1.1  uwe  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  1.1  uwe  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  1.1  uwe  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  1.1  uwe  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  1.1  uwe  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  1.1  uwe  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  1.1  uwe  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  1.1  uwe  */
     29  1.1  uwe 
     30  1.1  uwe #include <sys/param.h>
     31  1.1  uwe #include <lib/libsa/stand.h>
     32  1.1  uwe #include <machine/promlib.h>
     33  1.1  uwe 
     34  1.1  uwe void prom_patch(void);
     35  1.1  uwe 
     36  1.1  uwe /*
     37  1.1  uwe  * Each patch entry is processed by:
     38  1.1  uwe  * printf(message);  prom_interpret(patch);  printf("\n");
     39  1.1  uwe  */
     40  1.1  uwe struct patch_entry {
     41  1.1  uwe 	char *message;
     42  1.1  uwe 	char *patch;
     43  1.1  uwe };
     44  1.1  uwe 
     45  1.1  uwe /*
     46  1.1  uwe  * PROM patches to apply to machine matching name/promvers.
     47  1.1  uwe  */
     48  1.1  uwe struct prom_patch {
     49  1.1  uwe 	char *name;		/* "name" of the root node */
     50  1.1  uwe 	int promvers;		/* prom_version() */
     51  1.1  uwe 	struct patch_entry *patches;
     52  1.1  uwe };
     53  1.1  uwe 
     54  1.1  uwe 
     55  1.3  uwe /*
     56  1.3  uwe  * Patches for JavaStation 1 with OBP 2.x
     57  1.3  uwe  */
     58  1.3  uwe static struct patch_entry patch_js1_obp2[] = {
     59  1.3  uwe 
     60  1.3  uwe /*
     61  1.3  uwe  * Give "su" (com port) "interrupts" property.
     62  1.3  uwe  */
     63  1.3  uwe { "su: adding \"interrupts\"",
     64  1.3  uwe 	"\" /obio/su\" open-dev"
     65  1.3  uwe 	" d# 13 \" interrupts\" integer-attribute"
     66  1.3  uwe 	" close-dev"
     67  1.3  uwe },
     68  1.3  uwe 
     69  1.3  uwe /*
     70  1.3  uwe  * TODO: Create "8042" (pckbc) node.
     71  1.3  uwe  *       Delete "zs"
     72  1.3  uwe  */
     73  1.3  uwe 
     74  1.3  uwe { NULL, NULL }
     75  1.3  uwe };
     76  1.3  uwe 
     77  1.1  uwe 
     78  1.1  uwe /*
     79  1.1  uwe  * Patches for JavaStation 1 with OBP 3.* (OpenFirmware).
     80  1.1  uwe  * PROM in these machines is crippled in many ways.
     81  1.1  uwe  */
     82  1.3  uwe static struct patch_entry patch_js1_ofw[] = {
     83  1.1  uwe 
     84  1.1  uwe /*
     85  1.3  uwe  * JS1/OFW has no cpu node in the device tree.  Create one to save us a
     86  1.1  uwe  * _lot_ of headache in cpu.c and mainbus_attach.  Mostly copied from
     87  1.1  uwe  * OBP2.  While clock-frequency is usually at the root node, add it
     88  1.1  uwe  * here for brevity as kernel checks cpu node for this property anyway.
     89  1.1  uwe  */
     90  1.1  uwe { "cpu: creating node ", /* NB: space at the end is intentional */
     91  1.1  uwe 	"0 0 0 0 \" /\" begin-package"
     92  1.1  uwe 	" \" FMI,MB86904\" device-name" /* NB: will print the name */
     93  1.1  uwe 	" \" cpu\" device-type"
     94  1.1  uwe 	" 0 \" mid\" integer-property"
     95  1.1  uwe 
     96  1.1  uwe 	" 8 \" sparc-version\" integer-property"
     97  1.1  uwe 	" 4 \" version\" integer-property"
     98  1.1  uwe 	" 0 \" implementation\" integer-property"
     99  1.1  uwe 	" 4 \" psr-version\" integer-property"
    100  1.1  uwe  	" 0 \" psr-implementation\" integer-property"
    101  1.1  uwe 
    102  1.1  uwe 	" d# 100000000 \" clock-frequency\" integer-property"
    103  1.1  uwe 
    104  1.1  uwe 	" d# 4096 \" page-size\" integer-property"
    105  1.1  uwe 	" d# 256 \" mmu-nctx\" integer-property"
    106  1.1  uwe 
    107  1.1  uwe 	" 2 \" ncaches\" integer-property"
    108  1.1  uwe 
    109  1.1  uwe 	" d# 512 \" icache-nlines\" integer-property"
    110  1.1  uwe 	" d# 32 \" icache-line-size\" integer-property"
    111  1.1  uwe 	" 1 \" icache-associativity\" integer-property"
    112  1.1  uwe 
    113  1.1  uwe 	" d# 512 \" dcache-nlines\" integer-property"
    114  1.1  uwe 	" d# 16 \" dcache-line-size\" integer-property"
    115  1.1  uwe 	" 1 \" dcache-associativity\" integer-property"
    116  1.1  uwe 
    117  1.1  uwe 	" 0 0 \" cache-physical?\" property"
    118  1.1  uwe 	" 0 0 \" cache-coherence?\" property"
    119  1.1  uwe 
    120  1.1  uwe 	" end-package"
    121  1.1  uwe },
    122  1.1  uwe 
    123  1.1  uwe /*
    124  1.1  uwe  * mk48txx_attach needs a model name, spare clockattach from guesswork.
    125  1.1  uwe  */
    126  1.1  uwe { "eeprom: adding \"model\"",
    127  1.1  uwe 	"dev /obio/eeprom \" mk48t08\" model device-end"
    128  1.1  uwe },
    129  1.1  uwe 
    130  1.1  uwe /*
    131  1.1  uwe  * "interrupts" property is bogusly zero, delete it and let
    132  1.1  uwe  * sbus_get_intr fallback to correct "intr" property
    133  1.1  uwe  */
    134  1.1  uwe { "le: deleting bogus \"interrupts\"",
    135  1.1  uwe 	"dev /sbus/ledma/le \" interrupts\" delete-property device-end"
    136  1.1  uwe },
    137  1.1  uwe 
    138  1.1  uwe /*
    139  1.1  uwe  * Give "su" (com port) "interrupts" property.
    140  1.1  uwe  */
    141  1.1  uwe { "su: adding \"interrupts\"",
    142  1.1  uwe 	"dev /obio/su d# 13 \" interrupts\" integer-property device-end"
    143  1.1  uwe },
    144  1.1  uwe 
    145  1.1  uwe /*
    146  1.1  uwe  * Give "8042" (pckbc) "interrupts" property.
    147  1.1  uwe  */
    148  1.1  uwe { "8042: adding \"interrupts\"",
    149  1.1  uwe 	"dev /obio/8042 d# 13 \" interrupts\" integer-property device-end"
    150  1.1  uwe },
    151  1.1  uwe 
    152  1.1  uwe { NULL, NULL }
    153  1.3  uwe }; /* patch_js1_ofw */
    154  1.1  uwe 
    155  1.1  uwe 
    156  1.1  uwe 
    157  1.1  uwe static struct prom_patch prom_patch_tab[] = {
    158  1.3  uwe 	{ "SUNW,JavaStation-1", PROM_OBP_V2,	patch_js1_obp2	},
    159  1.3  uwe 	{ "SUNW,JDM1",		PROM_OPENFIRM,	patch_js1_ofw	},
    160  1.1  uwe 	{ NULL, 0, NULL }
    161  1.1  uwe };
    162  1.1  uwe 
    163  1.1  uwe 
    164  1.1  uwe /*
    165  1.1  uwe  * Check if this machine needs tweaks to its PROM.  It's simpler to
    166  1.1  uwe  * fix PROM than to invent workarounds in the kernel code.  We do this
    167  1.3  uwe  * patching in the secondary boot to avoid wasting space in the kernel.
    168  1.1  uwe  */
    169  1.1  uwe void
    170  1.1  uwe prom_patch(void)
    171  1.1  uwe {
    172  1.1  uwe 	char namebuf[32];
    173  1.1  uwe 	char *propval;
    174  1.1  uwe 	struct prom_patch *p;
    175  1.1  uwe 
    176  1.3  uwe 	if (prom_version() == PROM_OLDMON)
    177  1.3  uwe 		return;		/* don't bother - no forth in this */
    178  1.3  uwe 
    179  1.2  eeh 	propval = PROM_getpropstringA(prom_findroot(), "name",
    180  1.1  uwe 				 namebuf, sizeof(namebuf));
    181  1.1  uwe 	if (propval == NULL)
    182  1.1  uwe 		return;
    183  1.1  uwe 
    184  1.1  uwe 	for (p = prom_patch_tab; p->name != NULL; ++p) {
    185  1.1  uwe 		if (p->promvers == prom_version()
    186  1.1  uwe 		    && strcmp(p->name, namebuf) == 0) {
    187  1.1  uwe 			struct patch_entry *e;
    188  1.3  uwe 			const char *promstr = "???";
    189  1.3  uwe 
    190  1.3  uwe 			switch (prom_version()) {
    191  1.3  uwe 			case PROM_OBP_V0:
    192  1.3  uwe 				promstr = "OBP0";
    193  1.3  uwe 				break;
    194  1.3  uwe 			case PROM_OBP_V2:
    195  1.3  uwe 				promstr = "OBP2";
    196  1.3  uwe 				break;
    197  1.3  uwe 			case PROM_OBP_V3:
    198  1.3  uwe 				promstr = "OBP3";
    199  1.3  uwe 				break;
    200  1.3  uwe 			case PROM_OPENFIRM:
    201  1.3  uwe 				promstr = "OFW";
    202  1.3  uwe 				break;
    203  1.3  uwe 			}
    204  1.1  uwe 
    205  1.3  uwe 			printf("Patching %s for %s\n", promstr, p->name);
    206  1.1  uwe 			for (e = p->patches; e->message != NULL; ++e) {
    207  1.1  uwe 				printf("%s", e->message);
    208  1.1  uwe 				prom_interpret(e->patch);
    209  1.1  uwe 				printf("\n");
    210  1.1  uwe 			}
    211  1.1  uwe 			return;
    212  1.1  uwe 		}
    213  1.1  uwe 	}
    214  1.1  uwe }
    215