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 <linux/slab.h> 13 #include <asm/cpuinfo.h> 14 #include <asm/pvr.h> 15 16 const struct cpu_ver_key cpu_ver_lookup[] = { 17 /* These key value are as per MBV field in PVR0 */ 18 {"5.00.a", 0x01}, 19 {"5.00.b", 0x02}, 20 {"5.00.c", 0x03}, 21 {"6.00.a", 0x04}, 22 {"6.00.b", 0x06}, 23 {"7.00.a", 0x05}, 24 {"7.00.b", 0x07}, 25 {"7.10.a", 0x08}, 26 {"7.10.b", 0x09}, 27 {"7.10.c", 0x0a}, 28 {"7.10.d", 0x0b}, 29 {"7.20.a", 0x0c}, 30 {"7.20.b", 0x0d}, 31 {"7.20.c", 0x0e}, 32 {"7.20.d", 0x0f}, 33 {"7.30.a", 0x10}, 34 {NULL, 0}, 35 }; 36 37 /* 38 * FIXME Not sure if the actual key is defined by Xilinx in the PVR 39 */ 40 const struct family_string_key family_string_lookup[] = { 41 {"virtex2", 0x4}, 42 {"virtex2pro", 0x5}, 43 {"spartan3", 0x6}, 44 {"virtex4", 0x7}, 45 {"virtex5", 0x8}, 46 {"spartan3e", 0x9}, 47 {"spartan3a", 0xa}, 48 {"spartan3an", 0xb}, 49 {"spartan3adsp", 0xc}, 50 {"spartan6", 0xd}, 51 {"virtex6", 0xe}, 52 /* FIXME There is no key code defined for spartan2 */ 53 {"spartan2", 0xf0}, 54 {NULL, 0}, 55 }; 56 57 struct cpuinfo cpuinfo; 58 59 void __init setup_cpuinfo(void) 60 { 61 struct device_node *cpu = NULL; 62 63 cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); 64 if (!cpu) 65 printk(KERN_ERR "You don't have cpu!!!\n"); 66 67 printk(KERN_INFO "%s: initialising\n", __func__); 68 69 switch (cpu_has_pvr()) { 70 case 0: 71 printk(KERN_WARNING 72 "%s: No PVR support. Using static CPU info from FDT\n", 73 __func__); 74 set_cpuinfo_static(&cpuinfo, cpu); 75 break; 76 /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a 77 * please do not use FULL PVR with MMU */ 78 case 1: 79 printk(KERN_INFO "%s: Using full CPU PVR support\n", 80 __func__); 81 set_cpuinfo_static(&cpuinfo, cpu); 82 set_cpuinfo_pvr_full(&cpuinfo, cpu); 83 break; 84 default: 85 printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); 86 set_cpuinfo_static(&cpuinfo, cpu); 87 } 88 } 89