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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | /* idprom.c: Routines to load the idprom into kernel addresses and * interpret the data contained within. * * Because they use the IDPROM's machine type field, some of the * virtual address cache probings on the sun4c are done here. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #include <linux/kernel.h> #include <asm/types.h> #include <asm/oplib.h> #include <asm/idprom.h> #include <asm/machines.h> /* Fun with Sun released architectures. */ #include <asm/system.h> /* For halt() macro */ struct idp_struct *idprom; static struct idp_struct idprom_buff; /* 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 imperical 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", (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) } }; void sparc_display_systype(unsigned char machtyp) { char system_name[128]; int i; for(i = 0; i<NUM_SUN_MACHINES; i++) { if(Sun_Machines[i].id_machtype == machtyp) { if(machtyp!=(SM_SUN4M_OBP | 0x0)) { printk("TYPE: %s\n", Sun_Machines[i].name); break; } else { prom_getproperty(prom_root_node, "banner-name", system_name, sizeof(system_name)); printk("TYPE: %s\n", system_name); break; } } } if(i == NUM_SUN_MACHINES) printk("Uh oh, IDPROM had bogus id_machtype value <%x>\n", machtyp); return; } void get_idprom(void) { prom_getidp((char *) &idprom_buff, sizeof(idprom_buff)); idprom = &idprom_buff; sparc_display_systype(idprom->id_machtype); printk("Ethernet address: %x:%x:%x:%x:%x:%x\n", idprom->id_eaddr[0], idprom->id_eaddr[1], idprom->id_eaddr[2], idprom->id_eaddr[3], idprom->id_eaddr[4], idprom->id_eaddr[5]); return; } /* find_vac_size() returns the number of bytes in the VAC (virtual * address cache) on this machine. */ int find_vac_size(void) { int vac_prop_len; int vacsize = 0; vac_prop_len = prom_getproplen(prom_root_node, "vac-size"); if(vac_prop_len != -1) { vacsize = prom_getint(prom_root_node, "vac-size"); return vacsize; } else { switch(idprom->id_machtype) { case (SM_SUN4C | SM_4C_SS1): /* SparcStation1 */ case (SM_SUN4C | SM_4C_IPC): /* SparcStation IPX */ case (SM_SUN4C | SM_4C_SS1PLUS): /* SparcStation1+ */ case (SM_SUN4C | SM_4C_SLC): /* SparcStation SLC */ case (SM_SUN4C | SM_4C_SS2): /* SparcStation2 Cache-Chip BUG! */ case (SM_SUN4C | SM_4C_ELC): /* SparcStation ELC */ case (SM_SUN4C | SM_4C_IPX): /* SparcStation IPX */ return 65536; default: printk("find_vac_size: Can't determine size of VAC, bailing out...\n"); halt(); break; }; }; return -1; } /* find_vac_linesize() returns the size in bytes of the VAC linesize */ int find_vac_linesize(void) { int vac_prop_len; vac_prop_len = prom_getproplen(prom_root_node, "vac-linesize"); if(vac_prop_len != -1) return prom_getint(prom_root_node, "vac-linesize"); else { switch(idprom->id_machtype) { case (SM_SUN4C | SM_4C_SS1): /* SparcStation1 */ case (SM_SUN4C | SM_4C_IPC): /* SparcStation IPC */ case (SM_SUN4C | SM_4C_SS1PLUS): /* SparcStation1+ */ case (SM_SUN4C | SM_4C_SLC): /* SparcStation SLC */ return 16; case (SM_SUN4C | SM_4C_SS2): /* SparcStation2 Cache-Chip BUG! */ case (SM_SUN4C | SM_4C_ELC): /* SparcStation ELC */ case (SM_SUN4C | SM_4C_IPX): /* SparcStation IPX */ return 32; default: printk("find_vac_linesize: Can't determine VAC linesize, bailing out...\n"); halt(); break; }; }; return -1; } int find_vac_hwflushes(void) { register int len; int tmp1, tmp2; /* Sun 4/75 has typo in prom_node, it's a dash instead of an underscore * in the property name. :-( */ len = prom_getproperty(prom_root_node, "vac_hwflush", (char *) &tmp1, sizeof(int)); if(len != 4) tmp1=0; len = prom_getproperty(prom_root_node, "vac-hwflush", (char *) &tmp2, sizeof(int)); if(len != 4) tmp2=0; return (tmp1|tmp2); } |