sys/arch/evbppc/obs405/dev/century_bios.c

   1 /*      $NetBSD: century_bios.c,v 1.3 2006/05/05 18:04:41 thorpej Exp $ */
   2
   3 /*
   4  * Copyright (c) 2004 Shigeyuki Fukushima.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above
  13  *    copyright notice, this list of conditions and the following
  14  *    disclaimer in the documentation and/or other materials provided
  15  *    with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  21  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  24  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  26  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  28  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: century_bios.c,v 1.3 2006/05/05 18:04:41 thorpej Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38
  39 #include <machine/cpu.h>
  40 #include <machine/century_bios.h>
  41
  42 /*
  43  * OpenBlockS S/R Board configuration structure.
  44  *
  45  * IBM405GP Monitor (Ver. 1.8, REV-01  H/W)
  46  * Century Version  (MA-300) (Oct. 30, 2001)
  47  */
  48 struct board_bios_data {
  49         unsigned char   mac_address_local[6];
  50         unsigned char   boot_mode;
  51         unsigned char   mem_size;               /* MB */
  52 };
  53
  54 static struct board_bios_data   board_bios;
  55 static unsigned int             board_mem_size;
  56 static unsigned int             board_cpu_speed;
  57 static unsigned int             board_plb_speed;
  58 static unsigned int             board_pci_speed;
  59
  60 void
  61 bios_board_init(void *info_block, u_int sysclk_base)
  62 {
  63
  64         /* Initialize cache info for memcpy, etc. */
  65         cpu_probe_cache();
  66
  67         /* Save info block */
  68         memcpy(&board_bios, info_block, sizeof(board_bios));
  69         board_mem_size = board_bios.mem_size * 1024 * 1024;
  70
  71         board_cpu_speed = 0x0bebc200;
  72         board_plb_speed = 0x05f5e100;
  73         board_pci_speed = 0x01f78a40;
  74 }
  75
  76 unsigned int
  77 bios_board_memsize_get(void)
  78 {
  79         return board_mem_size;
  80 }
  81
  82 void
  83 bios_board_info_set(void)
  84 {
  85         prop_number_t pn;
  86         prop_data_t pd;
  87
  88         /* Initialize board properties dictionary */
  89         board_info_init();
  90
  91         pn = prop_number_create_integer(board_mem_size);
  92         KASSERT(pn != NULL);
  93         if (prop_dictionary_set(board_properties, "mem-size", pn) == false)
  94                 panic("setting mem-size");
  95         prop_object_release(pn);
  96
  97         pd = prop_data_create_data_nocopy(board_bios.mac_address_local,
  98                                           sizeof(board_bios.mac_address_local));
  99         KASSERT(pd != NULL);
 100         if (prop_dictionary_set(board_properties, "emac0-mac-addr",
 101                                 pd) == false)
 102                 panic("setting emac0-mac-addr");
 103         prop_object_release(pd);
 104
 105         pn = prop_number_create_integer(board_cpu_speed);
 106         KASSERT(pn != NULL);
 107         if (prop_dictionary_set(board_properties, "processor-frequency",
 108                                 pn) == false)
 109                 panic("setting processor-frequency");
 110         prop_object_release(pn);
 111
 112         pn = prop_number_create_integer(board_plb_speed);
 113         KASSERT(pn != NULL);
 114         if (prop_dictionary_set(board_properties, "plb-frequency", pn) == false)
 115                 panic("setting plb-frequency");
 116         prop_object_release(pn);
 117
 118         pn = prop_number_create_integer(board_pci_speed);
 119         KASSERT(pn != NULL);
 120         if (prop_dictionary_set(board_properties, "pci-frequency", pn) == false)
 121                 panic("setting pci-frequency");
 122         prop_object_release(pn);
 123 }
 124
 125
 126 void
 127 bios_board_print(void)
 128 {
 129
 130         printf("Board config data:\n");
 131         printf("  mem_size = %u\n", board_mem_size);
 132         printf("  mac_address_local = %02x:%02x:%02x:%02x:%02x:%02x\n",
 133             board_bios.mac_address_local[0], board_bios.mac_address_local[1],
 134             board_bios.mac_address_local[2], board_bios.mac_address_local[3],
 135             board_bios.mac_address_local[4], board_bios.mac_address_local[5]);
 136         printf("  processor_speed = %u\n", board_cpu_speed);
 137         printf("  plb_speed = %u\n", board_plb_speed);
 138         printf("  pci_speed = %u\n", board_pci_speed);
 139 }