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century_bios.c revision 1.4 
      1 /*	$NetBSD: century_bios.c,v 1.4 2007/02/22 05:27:47 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 1.4 2007/02/22 05:27:47 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 }
    140