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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68k/sun3/idprom.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68k/sun3/idprom.c')
-rw-r--r--arch/m68k/sun3/idprom.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/arch/m68k/sun3/idprom.c b/arch/m68k/sun3/idprom.c
new file mode 100644
index 000000000000..02c1fee6fe74
--- /dev/null
+++ b/arch/m68k/sun3/idprom.c
@@ -0,0 +1,129 @@
1/* $Id: idprom.c,v 1.22 1996/11/13 05:09:25 davem Exp $
2 * idprom.c: Routines to load the idprom into kernel addresses and
3 * interpret the data contained within.
4 *
5 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
6 * Sun3/3x models added by David Monro (davidm@psrg.cs.usyd.edu.au)
7 */
8
9#include <linux/kernel.h>
10#include <linux/types.h>
11#include <linux/init.h>
12#include <linux/string.h>
13
14#include <asm/oplib.h>
15#include <asm/idprom.h>
16#include <asm/machines.h> /* Fun with Sun released architectures. */
17
18struct idprom *idprom;
19static struct idprom idprom_buffer;
20
21/* Here is the master table of Sun machines which use some implementation
22 * of the Sparc CPU and have a meaningful IDPROM machtype value that we
23 * know about. See asm-sparc/machines.h for empirical constants.
24 */
25struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = {
26/* First, Sun3's */
27 { .name = "Sun 3/160 Series", .id_machtype = (SM_SUN3 | SM_3_160) },
28 { .name = "Sun 3/50", .id_machtype = (SM_SUN3 | SM_3_50) },
29 { .name = "Sun 3/260 Series", .id_machtype = (SM_SUN3 | SM_3_260) },
30 { .name = "Sun 3/110 Series", .id_machtype = (SM_SUN3 | SM_3_110) },
31 { .name = "Sun 3/60", .id_machtype = (SM_SUN3 | SM_3_60) },
32 { .name = "Sun 3/E", .id_machtype = (SM_SUN3 | SM_3_E) },
33/* Now, Sun3x's */
34 { .name = "Sun 3/460 Series", .id_machtype = (SM_SUN3X | SM_3_460) },
35 { .name = "Sun 3/80", .id_machtype = (SM_SUN3X | SM_3_80) },
36/* Then, Sun4's */
37// { .name = "Sun 4/100 Series", .id_machtype = (SM_SUN4 | SM_4_110) },
38// { .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) },
39// { .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) },
40// { .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) },
41/* And now, Sun4c's */
42// { .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) },
43// { .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) },
44// { .name = "Sun4c SparcStation 1+", .id_machtype = (SM_SUN4C | SM_4C_SS1PLUS) },
45// { .name = "Sun4c SparcStation SLC", .id_machtype = (SM_SUN4C | SM_4C_SLC) },
46// { .name = "Sun4c SparcStation 2", .id_machtype = (SM_SUN4C | SM_4C_SS2) },
47// { .name = "Sun4c SparcStation ELC", .id_machtype = (SM_SUN4C | SM_4C_ELC) },
48// { .name = "Sun4c SparcStation IPX", .id_machtype = (SM_SUN4C | SM_4C_IPX) },
49/* Finally, early Sun4m's */
50// { .name = "Sun4m SparcSystem600", .id_machtype = (SM_SUN4M | SM_4M_SS60) },
51// { .name = "Sun4m SparcStation10/20", .id_machtype = (SM_SUN4M | SM_4M_SS50) },
52// { .name = "Sun4m SparcStation5", .id_machtype = (SM_SUN4M | SM_4M_SS40) },
53/* One entry for the OBP arch's which are sun4d, sun4e, and newer sun4m's */
54// { .name = "Sun4M OBP based system", .id_machtype = (SM_SUN4M_OBP | 0x0) }
55};
56
57static void __init display_system_type(unsigned char machtype)
58{
59 register int i;
60
61 for (i = 0; i < NUM_SUN_MACHINES; i++) {
62 if(Sun_Machines[i].id_machtype == machtype) {
63 if (machtype != (SM_SUN4M_OBP | 0x00))
64 printk("TYPE: %s\n", Sun_Machines[i].name);
65 else {
66#if 0
67 prom_getproperty(prom_root_node, "banner-name",
68 sysname, sizeof(sysname));
69 printk("TYPE: %s\n", sysname);
70#endif
71 }
72 return;
73 }
74 }
75
76 prom_printf("IDPROM: Bogus id_machtype value, 0x%x\n", machtype);
77 prom_halt();
78}
79
80void sun3_get_model(unsigned char* model)
81{
82 register int i;
83
84 for (i = 0; i < NUM_SUN_MACHINES; i++) {
85 if(Sun_Machines[i].id_machtype == idprom->id_machtype) {
86 strcpy(model, Sun_Machines[i].name);
87 return;
88 }
89 }
90}
91
92
93
94/* Calculate the IDPROM checksum (xor of the data bytes). */
95static unsigned char __init calc_idprom_cksum(struct idprom *idprom)
96{
97 unsigned char cksum, i, *ptr = (unsigned char *)idprom;
98
99 for (i = cksum = 0; i <= 0x0E; i++)
100 cksum ^= *ptr++;
101
102 return cksum;
103}
104
105/* Create a local IDPROM copy, verify integrity, and display information. */
106void __init idprom_init(void)
107{
108 prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer));
109
110 idprom = &idprom_buffer;
111
112 if (idprom->id_format != 0x01) {
113 prom_printf("IDPROM: Unknown format type!\n");
114 prom_halt();
115 }
116
117 if (idprom->id_cksum != calc_idprom_cksum(idprom)) {
118 prom_printf("IDPROM: Checksum failure (nvram=%x, calc=%x)!\n",
119 idprom->id_cksum, calc_idprom_cksum(idprom));
120 prom_halt();
121 }
122
123 display_system_type(idprom->id_machtype);
124
125 printk("Ethernet address: %x:%x:%x:%x:%x:%x\n",
126 idprom->id_ethaddr[0], idprom->id_ethaddr[1],
127 idprom->id_ethaddr[2], idprom->id_ethaddr[3],
128 idprom->id_ethaddr[4], idprom->id_ethaddr[5]);
129}