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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.  
  41. /** Perform sparc64 specific initialization of the processor structure for the
  42.  * current processor.
  43.  */
  44. void cpu_arch_init(void)
  45. {
  46.     ofw_tree_node_t *node;
  47.     uint32_t mid;
  48.     uint32_t clock_frequency = 0;
  49.     upa_config_t upa_config;
  50.    
  51.     upa_config.value = upa_config_read();
  52.     CPU->arch.mid = upa_config.mid;
  53.    
  54. #if (defined(CONFIG_SMP) && defined(CONFIG_VIRT_IDX_DCACHE))
  55.     CPU->arch.dcache_active = 1;
  56.     CPU->arch.dcache_message_count = 0;
  57. #endif
  58.  
  59.     /*
  60.      * Detect processor frequency.
  61.      */
  62.     node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
  63.     while (node) {
  64.         ofw_tree_property_t *prop;
  65.        
  66.         prop = ofw_tree_getprop(node, "upa-portid");
  67.         if (prop && prop->value) {
  68.             mid = *((uint32_t *) prop->value);
  69.             if (mid == CPU->arch.mid) {
  70.                 prop = ofw_tree_getprop(node,
  71.                     "clock-frequency");
  72.                 if (prop && prop->value)
  73.                     clock_frequency = *((uint32_t *)
  74.                         prop->value);
  75.             }
  76.         }
  77.         node = ofw_tree_find_peer_by_device_type(node, "cpu");
  78.     }
  79.  
  80.     CPU->arch.clock_frequency = clock_frequency;
  81.     tick_init();
  82. }
  83.  
  84. /** Read version information from the current processor. */
  85. void cpu_identify(void)
  86. {
  87.     CPU->arch.ver.value = ver_read();
  88. }
  89.  
  90. /** Print version information for a processor.
  91.  *
  92.  * This function is called by the bootstrap processor.
  93.  *
  94.  * @param m Processor structure of the CPU for which version information is to
  95.  *  be printed.
  96.  */
  97. void cpu_print_report(cpu_t *m)
  98. {
  99.     char *manuf, *impl;
  100.  
  101.     switch (m->arch.ver.manuf) {
  102.     case MANUF_FUJITSU:
  103.         manuf = "Fujitsu";
  104.         break;
  105.     case MANUF_ULTRASPARC:
  106.         manuf = "UltraSPARC";
  107.         break;
  108.     case MANUF_SUN:
  109.             manuf = "Sun";
  110.         break;
  111.     default:
  112.         manuf = "Unknown";
  113.         break;
  114.     }
  115.    
  116.     switch (CPU->arch.ver.impl) {
  117.     case IMPL_ULTRASPARCI:
  118.         impl = "UltraSPARC I";
  119.         break;
  120.     case IMPL_ULTRASPARCII:
  121.         impl = "UltraSPARC II";
  122.         break;
  123.     case IMPL_ULTRASPARCII_I:
  124.         impl = "UltraSPARC IIi";
  125.         break;
  126.     case IMPL_ULTRASPARCII_E:
  127.         impl = "UltraSPARC IIe";
  128.         break;
  129.     case IMPL_ULTRASPARCIII:
  130.         impl = "UltraSPARC III";
  131.         break;
  132.     case IMPL_ULTRASPARCIV_PLUS:
  133.         impl = "UltraSPARC IV+";
  134.         break;
  135.     case IMPL_SPARC64V:
  136.         impl = "SPARC 64V";
  137.         break;
  138.     default:
  139.         impl = "Unknown";
  140.         break;
  141.     }
  142.  
  143.     printf("cpu%d: manuf=%s, impl=%s, mask=%d (%dMHz)\n", m->id, manuf,
  144.         impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000);
  145. }
  146.  
  147. /** @}
  148.  */
  149.