1 /* 2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> 3 * Copyright (C) 2007-2009 PetaLogix 4 * Copyright (C) 2007 John Williams <john.williams@petalogix.com> 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file "COPYING" in the main directory of this archive 8 * for more details. 9 */ 10 11 #include <linux/init.h> 12 #include <asm/cpuinfo.h> 13 #include <asm/pvr.h> 14 15 const struct cpu_ver_key cpu_ver_lookup[] = { 16 /* These key value are as per MBV field in PVR0 */ 17 {"5.00.a", 0x01}, 18 {"5.00.b", 0x02}, 19 {"5.00.c", 0x03}, 20 {"6.00.a", 0x04}, 21 {"6.00.b", 0x06}, 22 {"7.00.a", 0x05}, 23 {"7.00.b", 0x07}, 24 {"7.10.a", 0x08}, 25 {"7.10.b", 0x09}, 26 {"7.10.c", 0x0a}, 27 {"7.10.d", 0x0b}, 28 {"7.20.a", 0x0c}, 29 {"7.20.b", 0x0d}, 30 {"7.20.c", 0x0e}, 31 {"7.20.d", 0x0f}, 32 {"7.30.a", 0x10}, 33 {"7.30.b", 0x11}, 34 {"8.00.a", 0x12}, 35 {"8.00.b", 0x13}, 36 {"8.10.a", 0x14}, 37 {"8.20.a", 0x15}, 38 {"8.20.b", 0x16}, 39 {"8.30.a", 0x17}, 40 {NULL, 0}, 41 }; 42 43 /* 44 * FIXME Not sure if the actual key is defined by Xilinx in the PVR 45 */ 46 const struct family_string_key family_string_lookup[] = { 47 {"virtex2", 0x4}, 48 {"virtex2pro", 0x5}, 49 {"spartan3", 0x6}, 50 {"virtex4", 0x7}, 51 {"virtex5", 0x8}, 52 {"spartan3e", 0x9}, 53 {"spartan3a", 0xa}, 54 {"spartan3an", 0xb}, 55 {"spartan3adsp", 0xc}, 56 {"spartan6", 0xd}, 57 {"virtex6", 0xe}, 58 /* FIXME There is no key code defined for spartan2 */ 59 {"spartan2", 0xf0}, 60 {NULL, 0}, 61 }; 62 63 struct cpuinfo cpuinfo; 64 65 void __init setup_cpuinfo(void) 66 { 67 struct device_node *cpu = NULL; 68 69 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); 70 if (!cpu) 71 printk(KERN_ERR "You don't have cpu!!!\n"); 72 73 printk(KERN_INFO "%s: initialising\n", __func__); 74 75 switch (cpu_has_pvr()) { 76 case 0: 77 printk(KERN_WARNING 78 "%s: No PVR support. Using static CPU info from FDT\n", 79 __func__); 80 set_cpuinfo_static(&cpuinfo, cpu); 81 break; 82 /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a 83 * please do not use FULL PVR with MMU */ 84 case 1: 85 printk(KERN_INFO "%s: Using full CPU PVR support\n", 86 __func__); 87 set_cpuinfo_static(&cpuinfo, cpu); 88 set_cpuinfo_pvr_full(&cpuinfo, cpu); 89 break; 90 default: 91 printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); 92 set_cpuinfo_static(&cpuinfo, cpu); 93 } 94 95 if (cpuinfo.mmu_privins) 96 printk(KERN_WARNING "%s: Stream instructions enabled" 97 " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); 98 } 99