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  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch/asm.h>
  36. #include <cpu.h>
  37. #include <arch.h>
  38. #include <print.h>
  39. #include <arch/register.h>
  40. #include <genarch/ofw/ofw_tree.h>
  41. #include <arch/types.h>
  42. #include <arch/drivers/tick.h>
  43.  
  44. /** Perform sparc64 specific initialization of the processor structure for the
  45.  * current processor.
  46.  */
  47. void cpu_arch_init(void)
  48. {
  49.     ofw_tree_node_t *node;
  50.     uint32_t mid;
  51.     uint32_t clock_frequency = 0;
  52.     upa_config_t upa_config;
  53.    
  54.     upa_config.value = upa_config_read();
  55.     CPU->arch.mid = upa_config.mid;
  56.    
  57.     /*
  58.      * Detect processor frequency.
  59.      */
  60.     node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
  61.     while (node) {
  62.         ofw_tree_property_t *prop;
  63.        
  64.         prop = ofw_tree_getprop(node, "upa-portid");
  65.         if (prop && prop->value) {
  66.             mid = *((uint32_t *) prop->value);
  67.             if (mid == CPU->arch.mid) {
  68.                 prop = ofw_tree_getprop(node,
  69.                     "clock-frequency");
  70.                 if (prop && prop->value)
  71.                     clock_frequency = *((uint32_t *)
  72.                         prop->value);
  73.             }
  74.         }
  75.         node = ofw_tree_find_peer_by_device_type(node, "cpu");
  76.     }
  77.  
  78.     CPU->arch.clock_frequency = clock_frequency;
  79.     tick_init();
  80. }
  81.  
  82. /** Read version information from the current processor. */
  83. void cpu_identify(void)
  84. {
  85.     CPU->arch.ver.value = ver_read();
  86. }
  87.  
  88. /** Print version information for a processor.
  89.  *
  90.  * This function is called by the bootstrap processor.
  91.  *
  92.  * @param m Processor structure of the CPU for which version information is to
  93.  *  be printed.
  94.  */
  95. void cpu_print_report(cpu_t *m)
  96. {
  97.     char *manuf, *impl;
  98.  
  99.     switch (m->arch.ver.manuf) {
  100.     case MANUF_FUJITSU:
  101.         manuf = "Fujitsu";
  102.         break;
  103.     case MANUF_ULTRASPARC:
  104.         manuf = "UltraSPARC";
  105.         break;
  106.     case MANUF_SUN:
  107.             manuf = "Sun";
  108.         break;
  109.     default:
  110.         manuf = "Unknown";
  111.         break;
  112.     }
  113.    
  114.     switch (CPU->arch.ver.impl) {
  115.     case IMPL_ULTRASPARCI:
  116.         impl = "UltraSPARC I";
  117.         break;
  118.     case IMPL_ULTRASPARCII:
  119.         impl = "UltraSPARC II";
  120.         break;
  121.     case IMPL_ULTRASPARCII_I:
  122.         impl = "UltraSPARC IIi";
  123.         break;
  124.     case IMPL_ULTRASPARCII_E:
  125.         impl = "UltraSPARC IIe";
  126.         break;
  127.     case IMPL_ULTRASPARCIII:
  128.         impl = "UltraSPARC III";
  129.         break;
  130.     case IMPL_ULTRASPARCIV_PLUS:
  131.         impl = "UltraSPARC IV+";
  132.         break;
  133.     case IMPL_SPARC64V:
  134.         impl = "SPARC 64V";
  135.         break;
  136.     default:
  137.         impl = "Unknown";
  138.         break;
  139.     }
  140.  
  141.     printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", m->id, manuf,
  142.         impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
  143. }
  144.  
  145. /** @}
  146.  */
  147.