Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 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 | |
Michal Simek | c112054 | 2013-12-18 17:18:48 +0100 | [diff] [blame] | 11 | #include <linux/clk.h> |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 12 | #include <linux/init.h> |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 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}, |
Michal Simek | 94ad8eb | 2009-07-21 12:47:04 +0200 | [diff] [blame] | 29 | {"7.20.a", 0x0c}, |
| 30 | {"7.20.b", 0x0d}, |
John Williams | f97b4f7 | 2009-09-22 09:13:04 +1000 | [diff] [blame] | 31 | {"7.20.c", 0x0e}, |
Michal Simek | 6cec713 | 2009-10-15 13:34:31 +0200 | [diff] [blame] | 32 | {"7.20.d", 0x0f}, |
Michal Simek | c8983a5 | 2009-12-08 17:54:07 +0100 | [diff] [blame] | 33 | {"7.30.a", 0x10}, |
Michal Simek | f66efec | 2010-08-13 12:44:17 +0200 | [diff] [blame] | 34 | {"7.30.b", 0x11}, |
| 35 | {"8.00.a", 0x12}, |
Michal Simek | a3c2695 | 2010-12-28 14:44:51 +0100 | [diff] [blame] | 36 | {"8.00.b", 0x13}, |
Michal Simek | a9dbe5e | 2011-02-09 14:23:34 +0100 | [diff] [blame] | 37 | {"8.10.a", 0x14}, |
Michal Simek | 2309f7c | 2011-05-23 13:06:43 +0200 | [diff] [blame] | 38 | {"8.20.a", 0x15}, |
Michal Simek | 2e7ff47 | 2012-02-22 13:50:13 +0100 | [diff] [blame] | 39 | {"8.20.b", 0x16}, |
| 40 | {"8.30.a", 0x17}, |
Michal Simek | 6dc92c9 | 2012-12-19 10:52:19 +0100 | [diff] [blame] | 41 | {"8.40.a", 0x18}, |
| 42 | {"8.40.b", 0x19}, |
Michal Simek | c0d68ce | 2013-11-22 09:01:10 +0100 | [diff] [blame] | 43 | {"8.50.a", 0x1a}, |
Erico Nunes | 81653ed | 2015-01-02 00:40:33 -0200 | [diff] [blame] | 44 | {"8.50.b", 0x1c}, |
| 45 | {"8.50.c", 0x1e}, |
Michal Simek | dcd454a | 2013-09-03 12:35:36 +0200 | [diff] [blame] | 46 | {"9.0", 0x1b}, |
| 47 | {"9.1", 0x1d}, |
Erico Nunes | 81653ed | 2015-01-02 00:40:33 -0200 | [diff] [blame] | 48 | {"9.2", 0x1f}, |
| 49 | {"9.3", 0x20}, |
Michal Simek | 60587db | 2015-05-13 08:21:45 +0200 | [diff] [blame] | 50 | {"9.4", 0x21}, |
| 51 | {"9.5", 0x22}, |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 52 | {NULL, 0}, |
| 53 | }; |
| 54 | |
| 55 | /* |
| 56 | * FIXME Not sure if the actual key is defined by Xilinx in the PVR |
| 57 | */ |
| 58 | const struct family_string_key family_string_lookup[] = { |
| 59 | {"virtex2", 0x4}, |
| 60 | {"virtex2pro", 0x5}, |
| 61 | {"spartan3", 0x6}, |
| 62 | {"virtex4", 0x7}, |
| 63 | {"virtex5", 0x8}, |
| 64 | {"spartan3e", 0x9}, |
| 65 | {"spartan3a", 0xa}, |
| 66 | {"spartan3an", 0xb}, |
| 67 | {"spartan3adsp", 0xc}, |
John Williams | f97b4f7 | 2009-09-22 09:13:04 +1000 | [diff] [blame] | 68 | {"spartan6", 0xd}, |
| 69 | {"virtex6", 0xe}, |
Michal Simek | ed89466 | 2015-01-05 12:01:17 +0100 | [diff] [blame] | 70 | {"virtex7", 0xf}, |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 71 | /* FIXME There is no key code defined for spartan2 */ |
| 72 | {"spartan2", 0xf0}, |
Michal Simek | 6dc92c9 | 2012-12-19 10:52:19 +0100 | [diff] [blame] | 73 | {"kintex7", 0x10}, |
| 74 | {"artix7", 0x11}, |
| 75 | {"zynq7000", 0x12}, |
Michal Simek | ed89466 | 2015-01-05 12:01:17 +0100 | [diff] [blame] | 76 | {"UltraScale Virtex", 0x13}, |
| 77 | {"UltraScale Kintex", 0x14}, |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 78 | {NULL, 0}, |
| 79 | }; |
| 80 | |
| 81 | struct cpuinfo cpuinfo; |
Michal Simek | c112054 | 2013-12-18 17:18:48 +0100 | [diff] [blame] | 82 | static struct device_node *cpu; |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 83 | |
| 84 | void __init setup_cpuinfo(void) |
| 85 | { |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 86 | cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); |
| 87 | if (!cpu) |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 88 | pr_err("You don't have cpu!!!\n"); |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 89 | |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 90 | pr_info("%s: initialising\n", __func__); |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 91 | |
| 92 | switch (cpu_has_pvr()) { |
| 93 | case 0: |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 94 | pr_warn("%s: No PVR support. Using static CPU info from FDT\n", |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 95 | __func__); |
| 96 | set_cpuinfo_static(&cpuinfo, cpu); |
| 97 | break; |
Michal Simek | fbeda67 | 2009-04-21 14:06:08 +0200 | [diff] [blame] | 98 | /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 99 | * please do not use FULL PVR with MMU */ |
| 100 | case 1: |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 101 | pr_info("%s: Using full CPU PVR support\n", |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 102 | __func__); |
| 103 | set_cpuinfo_static(&cpuinfo, cpu); |
| 104 | set_cpuinfo_pvr_full(&cpuinfo, cpu); |
| 105 | break; |
| 106 | default: |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 107 | pr_warn("%s: Unsupported PVR setting\n", __func__); |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 108 | set_cpuinfo_static(&cpuinfo, cpu); |
| 109 | } |
John A. Williams | 8904976 | 2011-05-24 18:57:11 +1000 | [diff] [blame] | 110 | |
| 111 | if (cpuinfo.mmu_privins) |
Michal Simek | 6bd55f0 | 2012-12-27 10:40:38 +0100 | [diff] [blame] | 112 | pr_warn("%s: Stream instructions enabled" |
John A. Williams | 8904976 | 2011-05-24 18:57:11 +1000 | [diff] [blame] | 113 | " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); |
Michal Simek | 406107d | 2009-03-27 14:25:11 +0100 | [diff] [blame] | 114 | } |
Michal Simek | c112054 | 2013-12-18 17:18:48 +0100 | [diff] [blame] | 115 | |
| 116 | void __init setup_cpuinfo_clk(void) |
| 117 | { |
| 118 | struct clk *clk; |
| 119 | |
| 120 | clk = of_clk_get(cpu, 0); |
| 121 | if (IS_ERR(clk)) { |
| 122 | pr_err("ERROR: CPU CCF input clock not found\n"); |
| 123 | /* take timebase-frequency from DTS */ |
| 124 | cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency"); |
| 125 | } else { |
| 126 | cpuinfo.cpu_clock_freq = clk_get_rate(clk); |
| 127 | } |
| 128 | |
| 129 | if (!cpuinfo.cpu_clock_freq) { |
| 130 | pr_err("ERROR: CPU clock frequency not setup\n"); |
| 131 | BUG(); |
| 132 | } |
| 133 | } |