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 {"8.40.a", 0x18}, 41 {"8.40.b", 0x19}, 42 {"9.0", 0x1b}, 43 {"9.1", 0x1d}, 44 {NULL, 0}, 45 }; 46 47 /* 48 * FIXME Not sure if the actual key is defined by Xilinx in the PVR 49 */ 50 const struct family_string_key family_string_lookup[] = { 51 {"virtex2", 0x4}, 52 {"virtex2pro", 0x5}, 53 {"spartan3", 0x6}, 54 {"virtex4", 0x7}, 55 {"virtex5", 0x8}, 56 {"spartan3e", 0x9}, 57 {"spartan3a", 0xa}, 58 {"spartan3an", 0xb}, 59 {"spartan3adsp", 0xc}, 60 {"spartan6", 0xd}, 61 {"virtex6", 0xe}, 62 /* FIXME There is no key code defined for spartan2 */ 63 {"spartan2", 0xf0}, 64 {"kintex7", 0x10}, 65 {"artix7", 0x11}, 66 {"zynq7000", 0x12}, 67 {NULL, 0}, 68 }; 69 70 struct cpuinfo cpuinfo; 71 72 void __init setup_cpuinfo(void) 73 { 74 struct device_node *cpu = NULL; 75 76 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); 77 if (!cpu) 78 pr_err("You don't have cpu!!!\n"); 79 80 pr_info("%s: initialising\n", __func__); 81 82 switch (cpu_has_pvr()) { 83 case 0: 84 pr_warn("%s: No PVR support. Using static CPU info from FDT\n", 85 __func__); 86 set_cpuinfo_static(&cpuinfo, cpu); 87 break; 88 /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a 89 * please do not use FULL PVR with MMU */ 90 case 1: 91 pr_info("%s: Using full CPU PVR support\n", 92 __func__); 93 set_cpuinfo_static(&cpuinfo, cpu); 94 set_cpuinfo_pvr_full(&cpuinfo, cpu); 95 break; 96 default: 97 pr_warn("%s: Unsupported PVR setting\n", __func__); 98 set_cpuinfo_static(&cpuinfo, cpu); 99 } 100 101 if (cpuinfo.mmu_privins) 102 pr_warn("%s: Stream instructions enabled" 103 " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); 104 } 105