text: /*
   * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
   * Copyright (C) 2007-2009 PetaLogix
   * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License. See the file "COPYING" in the main directory of this archive
   * for more details.
   */
  
  #include <linux/clk.h>
  #include <linux/init.h>
  #include <asm/cpuinfo.h>
  #include <asm/pvr.h>
  
  const struct cpu_ver_key cpu_ver_lookup[] = {
  	/* These key value are as per MBV field in PVR0 */
  	{"5.00.a", 0x01},
  	{"5.00.b", 0x02},
  	{"5.00.c", 0x03},
  	{"6.00.a", 0x04},
  	{"6.00.b", 0x06},
  	{"7.00.a", 0x05},
  	{"7.00.b", 0x07},
  	{"7.10.a", 0x08},
  	{"7.10.b", 0x09},
  	{"7.10.c", 0x0a},
  	{"7.10.d", 0x0b},
  	{"7.20.a", 0x0c},
  	{"7.20.b", 0x0d},
  	{"7.20.c", 0x0e},
  	{"7.20.d", 0x0f},
  	{"7.30.a", 0x10},
  	{"7.30.b", 0x11},
  	{"8.00.a", 0x12},
  	{"8.00.b", 0x13},
  	{"8.10.a", 0x14},
  	{"8.20.a", 0x15},
  	{"8.20.b", 0x16},
  	{"8.30.a", 0x17},
  	{"8.40.a", 0x18},
  	{"8.40.b", 0x19},
  	{"8.50.a", 0x1a},
  	{"8.50.b", 0x1c},
  	{"8.50.c", 0x1e},
  	{"9.0", 0x1b},
  	{"9.1", 0x1d},
  	{"9.2", 0x1f},
  	{"9.3", 0x20},
  	{"9.4", 0x21},
  	{"9.5", 0x22},
  	{"9.6", 0x23},
  	{"10.0", 0x24},
  	{"11.0", 0x25},
  	{NULL, 0},
  };
  
  /*
   * FIXME Not sure if the actual key is defined by Xilinx in the PVR
   */
  const struct family_string_key family_string_lookup[] = {
  	{"virtex2", 0x4},
  	{"virtex2pro", 0x5},
  	{"spartan3", 0x6},
  	{"virtex4", 0x7},
  	{"virtex5", 0x8},
  	{"spartan3e", 0x9},
  	{"spartan3a", 0xa},
  	{"spartan3an", 0xb},
  	{"spartan3adsp", 0xc},
  	{"spartan6", 0xd},
  	{"virtex6", 0xe},
  	{"virtex7", 0xf},
  	/* FIXME There is no key code defined for spartan2 */
  	{"spartan2", 0xf0},
  	{"kintex7", 0x10},
  	{"artix7", 0x11},
  	{"zynq7000", 0x12},
  	{"UltraScale Virtex", 0x13},
  	{"UltraScale Kintex", 0x14},
  	{"UltraScale+ Zynq", 0x15},
  	{"UltraScale+ Virtex", 0x16},
  	{"UltraScale+ Kintex", 0x17},
  	{"Spartan7", 0x18},
  	{NULL, 0},
  };
  
  struct cpuinfo cpuinfo;
  static struct device_node *cpu;
  
  void __init setup_cpuinfo(void)
  {
  	cpu = of_get_cpu_node(0, NULL);
  	if (!cpu)
  		pr_err("You don't have cpu or are missing cpu reg property!!!\n");
  
  	pr_info("%s: initialising\n", __func__);
  
  	switch (cpu_has_pvr()) {
  	case 0:
  		pr_warn("%s: No PVR support. Using static CPU info from FDT\n",
  			__func__);
  		set_cpuinfo_static(&cpuinfo, cpu);
  		break;
  /* FIXME I found weird behavior with MB 7.00.a/b 7.10.a
   * please do not use FULL PVR with MMU */
  	case 1:
  		pr_info("%s: Using full CPU PVR support\n",
  			__func__);
  		set_cpuinfo_static(&cpuinfo, cpu);
  		set_cpuinfo_pvr_full(&cpuinfo, cpu);
  		break;
  	default:
  		pr_warn("%s: Unsupported PVR setting\n", __func__);
  		set_cpuinfo_static(&cpuinfo, cpu);
  	}
  
  	if (cpuinfo.mmu_privins)
  		pr_warn("%s: Stream instructions enabled"
  			" - USERSPACE CAN LOCK THIS KERNEL!\n", __func__);
  
  	of_node_put(cpu);
  }
  
  void __init setup_cpuinfo_clk(void)
  {
  	struct clk *clk;
  
  	clk = of_clk_get(cpu, 0);
  	if (IS_ERR(clk)) {
  		pr_err("ERROR: CPU CCF input clock not found\n");
  		/* take timebase-frequency from DTS */
  		cpuinfo.cpu_clock_freq = fcpu(cpu, "timebase-frequency");
  	} else {
  		cpuinfo.cpu_clock_freq = clk_get_rate(clk);
  	}
  
  	if (!cpuinfo.cpu_clock_freq) {
  		pr_err("ERROR: CPU clock frequency not setup\n");
  		BUG();
  	}
  }
  