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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | /* $Id: idprom.c,v 1.24 1999/08/31 06:54:20 davem Exp $ * idprom.c: Routines to load the idprom into kernel addresses and * interpret the data contained within. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #include <linux/config.h> #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> #include <asm/oplib.h> #include <asm/idprom.h> #include <asm/machines.h> /* Fun with Sun released architectures. */ #ifdef CONFIG_SUN4 #include <asm/sun4paddr.h> extern void sun4setup(void); #endif struct idprom *idprom; static struct idprom idprom_buffer; /* Here is the master table of Sun machines which use some implementation * of the Sparc CPU and have a meaningful IDPROM machtype value that we * know about. See asm-sparc/machines.h for empirical constants. */ struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { /* First, Sun4's */ { "Sun 4/100 Series", (SM_SUN4 | SM_4_110) }, { "Sun 4/200 Series", (SM_SUN4 | SM_4_260) }, { "Sun 4/300 Series", (SM_SUN4 | SM_4_330) }, { "Sun 4/400 Series", (SM_SUN4 | SM_4_470) }, /* Now, Sun4c's */ { "Sun4c SparcStation 1", (SM_SUN4C | SM_4C_SS1) }, { "Sun4c SparcStation IPC", (SM_SUN4C | SM_4C_IPC) }, { "Sun4c SparcStation 1+", (SM_SUN4C | SM_4C_SS1PLUS) }, { "Sun4c SparcStation SLC", (SM_SUN4C | SM_4C_SLC) }, { "Sun4c SparcStation 2", (SM_SUN4C | SM_4C_SS2) }, { "Sun4c SparcStation ELC", (SM_SUN4C | SM_4C_ELC) }, { "Sun4c SparcStation IPX", (SM_SUN4C | SM_4C_IPX) }, /* Finally, early Sun4m's */ { "Sun4m SparcSystem600", (SM_SUN4M | SM_4M_SS60) }, { "Sun4m SparcStation10/20", (SM_SUN4M | SM_4M_SS50) }, { "Sun4m SparcStation5", (SM_SUN4M | SM_4M_SS40) }, /* One entry for the OBP arch's which are sun4d, sun4e, and newer sun4m's */ { "Sun4M OBP based system", (SM_SUN4M_OBP | 0x0) } }; static void __init display_system_type(unsigned char machtype) { char sysname[128]; register int i; for (i = 0; i < NUM_SUN_MACHINES; i++) { if(Sun_Machines[i].id_machtype == machtype) { if (machtype != (SM_SUN4M_OBP | 0x00) || prom_getproperty(prom_root_node, "banner-name", sysname, sizeof(sysname)) <= 0) printk("TYPE: %s\n", Sun_Machines[i].name); else printk("TYPE: %s\n", sysname); return; } } prom_printf("IDPROM: Bogus id_machtype value, 0x%x\n", machtype); prom_halt(); } /* Calculate the IDPROM checksum (xor of the data bytes). */ static unsigned char __init calc_idprom_cksum(struct idprom *idprom) { unsigned char cksum, i, *ptr = (unsigned char *)idprom; for (i = cksum = 0; i <= 0x0E; i++) cksum ^= *ptr++; return cksum; } /* Create a local IDPROM copy, verify integrity, and display information. */ void __init idprom_init(void) { prom_get_idprom((char *) &idprom_buffer, sizeof(idprom_buffer)); idprom = &idprom_buffer; if (idprom->id_format != 0x01) { prom_printf("IDPROM: Unknown format type!\n"); prom_halt(); } if (idprom->id_cksum != calc_idprom_cksum(idprom)) { prom_printf("IDPROM: Checksum failure (nvram=%x, calc=%x)!\n", idprom->id_cksum, calc_idprom_cksum(idprom)); prom_halt(); } display_system_type(idprom->id_machtype); printk("Ethernet address: %x:%x:%x:%x:%x:%x\n", idprom->id_ethaddr[0], idprom->id_ethaddr[1], idprom->id_ethaddr[2], idprom->id_ethaddr[3], idprom->id_ethaddr[4], idprom->id_ethaddr[5]); #ifdef CONFIG_SUN4 sun4setup(); #endif } |