1 // SPDX-License-Identifier: GPL-2.0 1
2 /*
3 * idprom.c: Routines to load the idprom into
4 * interpret the data contained with
5 *
6 * Copyright (C) 1995 David S. Miller (davem@c
7 * Sun3/3x models added by David Monro (davidm
8 */
9
10 #include <linux/module.h>
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/init.h>
14 #include <linux/string.h>
15
16 #include <asm/oplib.h>
17 #include <asm/idprom.h>
18 #include <asm/machines.h> /* Fun with Sun rel
19
20 #include "sun3.h"
21
22 struct idprom *idprom;
23 EXPORT_SYMBOL(idprom);
24
25 static struct idprom idprom_buffer;
26
27 /* Here is the master table of Sun machines wh
28 * of the Sparc CPU and have a meaningful IDPR
29 * know about. See asm-sparc/machines.h for e
30 */
31 static struct Sun_Machine_Models Sun_Machines[
32 /* First, Sun3's */
33 { .name = "Sun 3/160 Series", .id_ma
34 { .name = "Sun 3/50", .id_ma
35 { .name = "Sun 3/260 Series", .id_ma
36 { .name = "Sun 3/110 Series", .id_ma
37 { .name = "Sun 3/60", .id_ma
38 { .name = "Sun 3/E", .id_ma
39 /* Now, Sun3x's */
40 { .name = "Sun 3/460 Series", .id_ma
41 { .name = "Sun 3/80", .id_ma
42 /* Then, Sun4's */
43 // { .name = "Sun 4/100 Series", .id_ma
44 // { .name = "Sun 4/200 Series", .id_ma
45 // { .name = "Sun 4/300 Series", .id_ma
46 // { .name = "Sun 4/400 Series", .id_ma
47 /* And now, Sun4c's */
48 // { .name = "Sun4c SparcStation 1", .id_ma
49 // { .name = "Sun4c SparcStation IPC", .id_ma
50 // { .name = "Sun4c SparcStation 1+", .id_ma
51 // { .name = "Sun4c SparcStation SLC", .id_ma
52 // { .name = "Sun4c SparcStation 2", .id_ma
53 // { .name = "Sun4c SparcStation ELC", .id_ma
54 // { .name = "Sun4c SparcStation IPX", .id_ma
55 /* Finally, early Sun4m's */
56 // { .name = "Sun4m SparcSystem600", .id_ma
57 // { .name = "Sun4m SparcStation10/20", .id_ma
58 // { .name = "Sun4m SparcStation5", .id_ma
59 /* One entry for the OBP arch's which are sun4
60 // { .name = "Sun4M OBP based system", .id_ma
61 };
62
63 static void __init display_system_type(unsigne
64 {
65 register int i;
66
67 for (i = 0; i < NUM_SUN_MACHINES; i++)
68 if(Sun_Machines[i].id_machtype
69 if (machtype != (SM_SU
70 pr_info("TYPE:
71 else {
72 #if 0
73 char sysname[1
74
75 prom_getproper
76
77 pr_info("TYPE:
78 #endif
79 }
80 return;
81 }
82 }
83
84 prom_printf("IDPROM: Bogus id_machtype
85 prom_halt();
86 }
87
88 void sun3_get_model(char *model)
89 {
90 register int i;
91
92 for (i = 0; i < NUM_SUN_MACHINES; i++)
93 if(Sun_Machines[i].id_machtype
94 strcpy(model, Sun_Mach
95 return;
96 }
97 }
98 }
99
100
101
102 /* Calculate the IDPROM checksum (xor of the d
103 static unsigned char __init calc_idprom_cksum(
104 {
105 unsigned char cksum, i, *ptr = (unsign
106
107 for (i = cksum = 0; i <= 0x0E; i++)
108 cksum ^= *ptr++;
109
110 return cksum;
111 }
112
113 /* Create a local IDPROM copy, verify integrit
114 void __init idprom_init(void)
115 {
116 prom_get_idprom((char *) &idprom_buffe
117
118 idprom = &idprom_buffer;
119
120 if (idprom->id_format != 0x01) {
121 prom_printf("IDPROM: Unknown f
122 prom_halt();
123 }
124
125 if (idprom->id_cksum != calc_idprom_ck
126 prom_printf("IDPROM: Checksum
127 idprom->id_cksum,
128 prom_halt();
129 }
130
131 display_system_type(idprom->id_machtyp
132
133 pr_info("Ethernet address: %pM\n", idp
134 }
135
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