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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 <cpu.h>
  36. #include <arch.h>
  37. #include <genarch/ofw/ofw_tree.h>
  38. #include <arch/drivers/tick.h>
  39. #include <print.h>
  40. #include <arch/cpu_node.h>
  41.  
  42. /** Perform sparc64 specific initialization of the processor structure for the
  43.  * current processor.
  44.  */
  45. void cpu_arch_init(void)
  46. {
  47.     ofw_tree_node_t *node;
  48.     uint32_t mid;
  49.     uint32_t clock_frequency = 0;
  50.     icbus_config_t icbus_config;
  51.    
  52.     icbus_config.value = icbus_config_read();
  53.     CPU->arch.mid = icbus_config.mid;
  54.    
  55.     /*
  56.      * Detect processor frequency.
  57.      */
  58.     node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu");
  59.     while (node) {
  60.         ofw_tree_property_t *prop;
  61.  
  62.         prop = ofw_tree_getprop(node, PORTID_NAME);
  63.         if (prop && prop->value) {
  64.             mid = *((uint32_t *) prop->value);
  65.             if (mid == CPU->arch.mid) {
  66.                 prop = ofw_tree_getprop(node,
  67.                     "clock-frequency");
  68.                 if (prop && prop->value)
  69.                     clock_frequency = *((uint32_t *)
  70.                         prop->value);
  71.             }
  72.         }
  73.         node = ofw_tree_find_peer_by_device_type(node, "cpu");
  74.     }
  75.  
  76.     CPU->arch.clock_frequency = clock_frequency;
  77.     tick_init();
  78. }
  79.  
  80. /** Read version information from the current processor. */
  81. void cpu_identify(void)
  82. {
  83.     CPU->arch.ver.value = ver_read();
  84. }
  85.  
  86. /** Print version information for a processor.
  87.  *
  88.  * This function is called by the bootstrap processor.
  89.  *
  90.  * @param m Processor structure of the CPU for which version information is to
  91.  *  be printed.
  92.  */
  93. void cpu_print_report(cpu_t *m)
  94. {
  95.     char *manuf, *impl;
  96.  
  97.     switch (m->arch.ver.manuf) {
  98.     case MANUF_FUJITSU:
  99.         manuf = "Fujitsu";
  100.         break;
  101.     case MANUF_ULTRASPARC:
  102.         manuf = "UltraSPARC";
  103.         break;
  104.     case MANUF_SUN:
  105.             manuf = "Sun";
  106.         break;
  107.     default:
  108.         manuf = "Unknown";
  109.         break;
  110.     }
  111.    
  112.     switch (CPU->arch.ver.impl) {
  113.     case IMPL_ULTRASPARCI:
  114.         impl = "UltraSPARC I";
  115.         break;
  116.     case IMPL_ULTRASPARCII:
  117.         impl = "UltraSPARC II";
  118.         break;
  119.     case IMPL_ULTRASPARCII_I:
  120.         impl = "UltraSPARC IIi";
  121.         break;
  122.     case IMPL_ULTRASPARCII_E:
  123.         impl = "UltraSPARC IIe";
  124.         break;
  125.     case IMPL_ULTRASPARCIII:
  126.         impl = "UltraSPARC III";
  127.         break;
  128.     case IMPL_ULTRASPARCIV_PLUS:
  129.         impl = "UltraSPARC IV+";
  130.         break;
  131.     case IMPL_SPARC64V:
  132.         impl = "SPARC 64V";
  133.         break;
  134.     default:
  135.         impl = "Unknown";
  136.         break;
  137.     }
  138.  
  139.     printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf,
  140.         impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
  141. }
  142.  
  143. /** @}
  144.  */
  145.