1406107daSMichal Simek /*
2406107daSMichal Simek * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3406107daSMichal Simek * Copyright (C) 2007-2009 PetaLogix
4406107daSMichal Simek * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
5406107daSMichal Simek *
6406107daSMichal Simek * This file is subject to the terms and conditions of the GNU General Public
7406107daSMichal Simek * License. See the file "COPYING" in the main directory of this archive
8406107daSMichal Simek * for more details.
9406107daSMichal Simek */
10406107daSMichal Simek
11c1120542SMichal Simek #include <linux/clk.h>
12406107daSMichal Simek #include <linux/init.h>
13406107daSMichal Simek #include <asm/cpuinfo.h>
14406107daSMichal Simek #include <asm/pvr.h>
15406107daSMichal Simek
16406107daSMichal Simek const struct cpu_ver_key cpu_ver_lookup[] = {
17406107daSMichal Simek /* These key value are as per MBV field in PVR0 */
18406107daSMichal Simek {"5.00.a", 0x01},
19406107daSMichal Simek {"5.00.b", 0x02},
20406107daSMichal Simek {"5.00.c", 0x03},
21406107daSMichal Simek {"6.00.a", 0x04},
22406107daSMichal Simek {"6.00.b", 0x06},
23406107daSMichal Simek {"7.00.a", 0x05},
24406107daSMichal Simek {"7.00.b", 0x07},
25406107daSMichal Simek {"7.10.a", 0x08},
26406107daSMichal Simek {"7.10.b", 0x09},
27406107daSMichal Simek {"7.10.c", 0x0a},
28406107daSMichal Simek {"7.10.d", 0x0b},
2994ad8eb8SMichal Simek {"7.20.a", 0x0c},
3094ad8eb8SMichal Simek {"7.20.b", 0x0d},
31f97b4f7dSJohn Williams {"7.20.c", 0x0e},
326cec713bSMichal Simek {"7.20.d", 0x0f},
33c8983a5cSMichal Simek {"7.30.a", 0x10},
34f66efecaSMichal Simek {"7.30.b", 0x11},
35f66efecaSMichal Simek {"8.00.a", 0x12},
36a3c26959SMichal Simek {"8.00.b", 0x13},
37a9dbe5ebSMichal Simek {"8.10.a", 0x14},
382309f7cfSMichal Simek {"8.20.a", 0x15},
392e7ff478SMichal Simek {"8.20.b", 0x16},
402e7ff478SMichal Simek {"8.30.a", 0x17},
416dc92c9cSMichal Simek {"8.40.a", 0x18},
426dc92c9cSMichal Simek {"8.40.b", 0x19},
43c0d68ceaSMichal Simek {"8.50.a", 0x1a},
4481653eddSErico Nunes {"8.50.b", 0x1c},
4581653eddSErico Nunes {"8.50.c", 0x1e},
46dcd454afSMichal Simek {"9.0", 0x1b},
47dcd454afSMichal Simek {"9.1", 0x1d},
4881653eddSErico Nunes {"9.2", 0x1f},
4981653eddSErico Nunes {"9.3", 0x20},
5060587dbbSMichal Simek {"9.4", 0x21},
5160587dbbSMichal Simek {"9.5", 0x22},
528ee80500SMichal Simek {"9.6", 0x23},
538ee80500SMichal Simek {"10.0", 0x24},
54*6aa71ef9SMichal Simek {"11.0", 0x25},
55406107daSMichal Simek {NULL, 0},
56406107daSMichal Simek };
57406107daSMichal Simek
58406107daSMichal Simek /*
59406107daSMichal Simek * FIXME Not sure if the actual key is defined by Xilinx in the PVR
60406107daSMichal Simek */
61406107daSMichal Simek const struct family_string_key family_string_lookup[] = {
62406107daSMichal Simek {"virtex2", 0x4},
63406107daSMichal Simek {"virtex2pro", 0x5},
64406107daSMichal Simek {"spartan3", 0x6},
65406107daSMichal Simek {"virtex4", 0x7},
66406107daSMichal Simek {"virtex5", 0x8},
67406107daSMichal Simek {"spartan3e", 0x9},
68406107daSMichal Simek {"spartan3a", 0xa},
69406107daSMichal Simek {"spartan3an", 0xb},
70406107daSMichal Simek {"spartan3adsp", 0xc},
71f97b4f7dSJohn Williams {"spartan6", 0xd},
72f97b4f7dSJohn Williams {"virtex6", 0xe},
73ed89466fSMichal Simek {"virtex7", 0xf},
74406107daSMichal Simek /* FIXME There is no key code defined for spartan2 */
75406107daSMichal Simek {"spartan2", 0xf0},
766dc92c9cSMichal Simek {"kintex7", 0x10},
776dc92c9cSMichal Simek {"artix7", 0x11},
786dc92c9cSMichal Simek {"zynq7000", 0x12},
79ed89466fSMichal Simek {"UltraScale Virtex", 0x13},
80ed89466fSMichal Simek {"UltraScale Kintex", 0x14},
813400606dSMichal Simek {"UltraScale+ Zynq", 0x15},
823400606dSMichal Simek {"UltraScale+ Virtex", 0x16},
833400606dSMichal Simek {"UltraScale+ Kintex", 0x17},
843400606dSMichal Simek {"Spartan7", 0x18},
85406107daSMichal Simek {NULL, 0},
86406107daSMichal Simek };
87406107daSMichal Simek
88406107daSMichal Simek struct cpuinfo cpuinfo;
89c1120542SMichal Simek static struct device_node *cpu;
90406107daSMichal Simek
setup_cpuinfo(void)91406107daSMichal Simek void __init setup_cpuinfo(void)
92406107daSMichal Simek {
934c29e593SRob Herring cpu = of_get_cpu_node(0, NULL);
94406107daSMichal Simek if (!cpu)
954c29e593SRob Herring pr_err("You don't have cpu or are missing cpu reg property!!!\n");
96406107daSMichal Simek
976bd55f0bSMichal Simek pr_info("%s: initialising\n", __func__);
98406107daSMichal Simek
99406107daSMichal Simek switch (cpu_has_pvr()) {
100406107daSMichal Simek case 0:
1016bd55f0bSMichal Simek pr_warn("%s: No PVR support. Using static CPU info from FDT\n",
102406107daSMichal Simek __func__);
103406107daSMichal Simek set_cpuinfo_static(&cpuinfo, cpu);
104406107daSMichal Simek break;
105fbeda677SMichal Simek /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a
106406107daSMichal Simek * please do not use FULL PVR with MMU */
107406107daSMichal Simek case 1:
1086bd55f0bSMichal Simek pr_info("%s: Using full CPU PVR support\n",
109406107daSMichal Simek __func__);
110406107daSMichal Simek set_cpuinfo_static(&cpuinfo, cpu);
111406107daSMichal Simek set_cpuinfo_pvr_full(&cpuinfo, cpu);
112406107daSMichal Simek break;
113406107daSMichal Simek default:
1146bd55f0bSMichal Simek pr_warn("%s: Unsupported PVR setting\n", __func__);
115406107daSMichal Simek set_cpuinfo_static(&cpuinfo, cpu);
116406107daSMichal Simek }
1178904976eSJohn A. Williams
1188904976eSJohn A. Williams if (cpuinfo.mmu_privins)
1196bd55f0bSMichal Simek pr_warn("%s: Stream instructions enabled"
1208904976eSJohn A. Williams " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__);
1214c29e593SRob Herring
1224c29e593SRob Herring of_node_put(cpu);
123406107daSMichal Simek }
124c1120542SMichal Simek
setup_cpuinfo_clk(void)125c1120542SMichal Simek void __init setup_cpuinfo_clk(void)
126c1120542SMichal Simek {
127c1120542SMichal Simek struct clk *clk;
128c1120542SMichal Simek
129c1120542SMichal Simek clk = of_clk_get(cpu, 0);
130c1120542SMichal Simek if (IS_ERR(clk)) {
131c1120542SMichal Simek pr_err("ERROR: CPU CCF input clock not found\n");
132c1120542SMichal Simek /* take timebase-frequency from DTS */
133c1120542SMichal Simek cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency");
134c1120542SMichal Simek } else {
135c1120542SMichal Simek cpuinfo.cpu_clock_freq = clk_get_rate(clk);
136c1120542SMichal Simek }
137c1120542SMichal Simek
138c1120542SMichal Simek if (!cpuinfo.cpu_clock_freq) {
139c1120542SMichal Simek pr_err("ERROR: CPU clock frequency not setup\n");
140c1120542SMichal Simek BUG();
141c1120542SMichal Simek }
142c1120542SMichal Simek }
143