Adrian Bunk | f30828a | 2008-07-17 21:16:08 +0200 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Al Viro | 2e81148 | 2006-10-11 17:28:27 +0100 | [diff] [blame] | 9 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | #include <linux/kernel.h> |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/init.h> |
| 13 | #include <linux/string.h> |
| 14 | |
| 15 | #include <asm/oplib.h> |
| 16 | #include <asm/idprom.h> |
| 17 | #include <asm/machines.h> /* Fun with Sun released architectures. */ |
| 18 | |
| 19 | struct idprom *idprom; |
Al Viro | 2e81148 | 2006-10-11 17:28:27 +0100 | [diff] [blame] | 20 | EXPORT_SYMBOL(idprom); |
| 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | static struct idprom idprom_buffer; |
| 23 | |
| 24 | /* Here is the master table of Sun machines which use some implementation |
| 25 | * of the Sparc CPU and have a meaningful IDPROM machtype value that we |
| 26 | * know about. See asm-sparc/machines.h for empirical constants. |
| 27 | */ |
Adrian Bunk | 07b8125 | 2008-07-17 21:16:27 +0200 | [diff] [blame] | 28 | static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | /* First, Sun3's */ |
| 30 | { .name = "Sun 3/160 Series", .id_machtype = (SM_SUN3 | SM_3_160) }, |
| 31 | { .name = "Sun 3/50", .id_machtype = (SM_SUN3 | SM_3_50) }, |
| 32 | { .name = "Sun 3/260 Series", .id_machtype = (SM_SUN3 | SM_3_260) }, |
| 33 | { .name = "Sun 3/110 Series", .id_machtype = (SM_SUN3 | SM_3_110) }, |
| 34 | { .name = "Sun 3/60", .id_machtype = (SM_SUN3 | SM_3_60) }, |
| 35 | { .name = "Sun 3/E", .id_machtype = (SM_SUN3 | SM_3_E) }, |
| 36 | /* Now, Sun3x's */ |
| 37 | { .name = "Sun 3/460 Series", .id_machtype = (SM_SUN3X | SM_3_460) }, |
| 38 | { .name = "Sun 3/80", .id_machtype = (SM_SUN3X | SM_3_80) }, |
| 39 | /* Then, Sun4's */ |
| 40 | // { .name = "Sun 4/100 Series", .id_machtype = (SM_SUN4 | SM_4_110) }, |
| 41 | // { .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) }, |
| 42 | // { .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) }, |
| 43 | // { .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) }, |
| 44 | /* And now, Sun4c's */ |
| 45 | // { .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) }, |
| 46 | // { .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) }, |
| 47 | // { .name = "Sun4c SparcStation 1+", .id_machtype = (SM_SUN4C | SM_4C_SS1PLUS) }, |
| 48 | // { .name = "Sun4c SparcStation SLC", .id_machtype = (SM_SUN4C | SM_4C_SLC) }, |
| 49 | // { .name = "Sun4c SparcStation 2", .id_machtype = (SM_SUN4C | SM_4C_SS2) }, |
| 50 | // { .name = "Sun4c SparcStation ELC", .id_machtype = (SM_SUN4C | SM_4C_ELC) }, |
| 51 | // { .name = "Sun4c SparcStation IPX", .id_machtype = (SM_SUN4C | SM_4C_IPX) }, |
| 52 | /* Finally, early Sun4m's */ |
| 53 | // { .name = "Sun4m SparcSystem600", .id_machtype = (SM_SUN4M | SM_4M_SS60) }, |
| 54 | // { .name = "Sun4m SparcStation10/20", .id_machtype = (SM_SUN4M | SM_4M_SS50) }, |
| 55 | // { .name = "Sun4m SparcStation5", .id_machtype = (SM_SUN4M | SM_4M_SS40) }, |
| 56 | /* One entry for the OBP arch's which are sun4d, sun4e, and newer sun4m's */ |
| 57 | // { .name = "Sun4M OBP based system", .id_machtype = (SM_SUN4M_OBP | 0x0) } |
| 58 | }; |
| 59 | |
| 60 | static void __init display_system_type(unsigned char machtype) |
| 61 | { |
| 62 | register int i; |
| 63 | |
| 64 | for (i = 0; i < NUM_SUN_MACHINES; i++) { |
| 65 | if(Sun_Machines[i].id_machtype == machtype) { |
| 66 | if (machtype != (SM_SUN4M_OBP | 0x00)) |
| 67 | printk("TYPE: %s\n", Sun_Machines[i].name); |
| 68 | else { |
| 69 | #if 0 |
| 70 | prom_getproperty(prom_root_node, "banner-name", |
| 71 | sysname, sizeof(sysname)); |
| 72 | printk("TYPE: %s\n", sysname); |
| 73 | #endif |
| 74 | } |
| 75 | return; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | prom_printf("IDPROM: Bogus id_machtype value, 0x%x\n", machtype); |
| 80 | prom_halt(); |
| 81 | } |
| 82 | |
| 83 | void sun3_get_model(unsigned char* model) |
| 84 | { |
| 85 | register int i; |
| 86 | |
| 87 | for (i = 0; i < NUM_SUN_MACHINES; i++) { |
| 88 | if(Sun_Machines[i].id_machtype == idprom->id_machtype) { |
| 89 | strcpy(model, Sun_Machines[i].name); |
| 90 | return; |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | |
| 96 | |
| 97 | /* Calculate the IDPROM checksum (xor of the data bytes). */ |
| 98 | static unsigned char __init calc_idprom_cksum(struct idprom *idprom) |
| 99 | { |
| 100 | unsigned char cksum, i, *ptr = (unsigned char *)idprom; |
| 101 | |
| 102 | for (i = cksum = 0; i <= 0x0E; i++) |
| 103 | cksum ^= *ptr++; |
| 104 | |
| 105 | return cksum; |
| 106 | } |
| 107 | |
| 108 | /* Create a local IDPROM copy, verify integrity, and display information. */ |
| 109 | void __init idprom_init(void) |
| 110 | { |
| 111 | prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer)); |
| 112 | |
| 113 | idprom = &idprom_buffer; |
| 114 | |
| 115 | if (idprom->id_format != 0x01) { |
| 116 | prom_printf("IDPROM: Unknown format type!\n"); |
| 117 | prom_halt(); |
| 118 | } |
| 119 | |
| 120 | if (idprom->id_cksum != calc_idprom_cksum(idprom)) { |
| 121 | prom_printf("IDPROM: Checksum failure (nvram=%x, calc=%x)!\n", |
| 122 | idprom->id_cksum, calc_idprom_cksum(idprom)); |
| 123 | prom_halt(); |
| 124 | } |
| 125 | |
| 126 | display_system_type(idprom->id_machtype); |
| 127 | |
Alexander Kuleshov | bab84fa | 2015-08-27 18:30:43 +0600 | [diff] [blame] | 128 | printk("Ethernet address: %pM\n", idprom->id_ethaddr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | } |