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 {NULL, 0}, 34 }; 35 36 /* 37 * FIXME Not sure if the actual key is defined by Xilinx in the PVR 38 */ 39 const struct family_string_key family_string_lookup[] = { 40 {"virtex2", 0x4}, 41 {"virtex2pro", 0x5}, 42 {"spartan3", 0x6}, 43 {"virtex4", 0x7}, 44 {"virtex5", 0x8}, 45 {"spartan3e", 0x9}, 46 {"spartan3a", 0xa}, 47 {"spartan3an", 0xb}, 48 {"spartan3adsp", 0xc}, 49 {"spartan6", 0xd}, 50 {"virtex6", 0xe}, 51 /* FIXME There is no key code defined for spartan2 */ 52 {"spartan2", 0xf0}, 53 {NULL, 0}, 54 }; 55 56 struct cpuinfo cpuinfo; 57 58 void __init setup_cpuinfo(void) 59 { 60 struct device_node *cpu = NULL; 61 62 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); 63 if (!cpu) 64 printk(KERN_ERR "You don't have cpu!!!\n"); 65 66 printk(KERN_INFO "%s: initialising\n", __func__); 67 68 switch (cpu_has_pvr()) { 69 case 0: 70 printk(KERN_WARNING 71 "%s: No PVR support. Using static CPU info from FDT\n", 72 __func__); 73 set_cpuinfo_static(&cpuinfo, cpu); 74 break; 75 /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a 76 * please do not use FULL PVR with MMU */ 77 case 1: 78 printk(KERN_INFO "%s: Using full CPU PVR support\n", 79 __func__); 80 set_cpuinfo_static(&cpuinfo, cpu); 81 set_cpuinfo_pvr_full(&cpuinfo, cpu); 82 break; 83 default: 84 printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); 85 set_cpuinfo_static(&cpuinfo, cpu); 86 } 87 } 88