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 {NULL, 0}, 37 }; 38 39 /* 40 * FIXME Not sure if the actual key is defined by Xilinx in the PVR 41 */ 42 const struct family_string_key family_string_lookup[] = { 43 {"virtex2", 0x4}, 44 {"virtex2pro", 0x5}, 45 {"spartan3", 0x6}, 46 {"virtex4", 0x7}, 47 {"virtex5", 0x8}, 48 {"spartan3e", 0x9}, 49 {"spartan3a", 0xa}, 50 {"spartan3an", 0xb}, 51 {"spartan3adsp", 0xc}, 52 {"spartan6", 0xd}, 53 {"virtex6", 0xe}, 54 /* FIXME There is no key code defined for spartan2 */ 55 {"spartan2", 0xf0}, 56 {NULL, 0}, 57 }; 58 59 struct cpuinfo cpuinfo; 60 61 void __init setup_cpuinfo(void) 62 { 63 struct device_node *cpu = NULL; 64 65 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); 66 if (!cpu) 67 printk(KERN_ERR "You don't have cpu!!!\n"); 68 69 printk(KERN_INFO "%s: initialising\n", __func__); 70 71 switch (cpu_has_pvr()) { 72 case 0: 73 printk(KERN_WARNING 74 "%s: No PVR support. Using static CPU info from FDT\n", 75 __func__); 76 set_cpuinfo_static(&cpuinfo, cpu); 77 break; 78 /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a 79 * please do not use FULL PVR with MMU */ 80 case 1: 81 printk(KERN_INFO "%s: Using full CPU PVR support\n", 82 __func__); 83 set_cpuinfo_static(&cpuinfo, cpu); 84 set_cpuinfo_pvr_full(&cpuinfo, cpu); 85 break; 86 default: 87 printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); 88 set_cpuinfo_static(&cpuinfo, cpu); 89 } 90 } 91