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openbios.c revision 1.3
      1 /*	$NetBSD: openbios.c,v 1.3 2006/05/05 18:04:42 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: openbios.c,v 1.3 2006/05/05 18:04:42 thorpej Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 
     39 #include <machine/cpu.h>
     40 
     41 #include <powerpc/ibm4xx/openbios.h>
     42 
     43 /*
     44  * Board configuration structure from the OpenBIOS.
     45  *
     46  * Supported (XXX):
     47  *    405GPr 1.2 ROM Monitor (5/25/02)
     48  */
     49 struct board_bios_data {
     50 	unsigned char	usr_config_ver[4];
     51 	unsigned char	rom_sw_ver[30];
     52 	unsigned int	mem_size;
     53 	unsigned char	mac_address_local[6];
     54 	unsigned char	mac_address_pci[6];
     55 	unsigned int	processor_speed;
     56 	unsigned int	plb_speed;
     57 	unsigned int	pci_speed;
     58 };
     59 
     60 static struct board_bios_data board_bios;
     61 
     62 void
     63 openbios_board_init(void *info_block, u_int startkernel)
     64 {
     65 
     66         /* Initialize cache info for memcpy, etc. */
     67         cpu_probe_cache();
     68 
     69 	/* Save info block */
     70 	memcpy(&board_bios, info_block, sizeof(board_bios));
     71 }
     72 
     73 unsigned int
     74 openbios_board_memsize_get(void)
     75 {
     76 	return board_bios.mem_size;
     77 }
     78 
     79 void
     80 openbios_board_info_set(void)
     81 {
     82 	prop_number_t pn;
     83 	prop_string_t ps;
     84 	prop_data_t pd;
     85 
     86 	/* Initialize board properties database */
     87 	board_info_init();
     88 
     89 	ps = prop_string_create_cstring_nocopy(board_bios.usr_config_ver);
     90 	KASSERT(ps != NULL);
     91 	if (prop_dictionary_set(board_properties, "user-config-version",
     92 				ps) == FALSE)
     93 		panic("setting user-config-version");
     94 	prop_object_release(ps);
     95 
     96 	ps = prop_string_create_cstring_nocopy(board_bios.rom_sw_ver);
     97 	KASSERT(ps != NULL);
     98 	if (prop_dictionary_set(board_properties, "rom-software-version",
     99 				ps) == FALSE)
    100 		panic("setting rom-software-version");
    101 	prop_object_release(ps);
    102 
    103 	pn = prop_number_create_integer(board_bios.mem_size);
    104 	KASSERT(pn != NULL);
    105 	if (prop_dictionary_set(board_properties, "mem-size", pn) == FALSE)
    106 		panic("setting mem-size");
    107 	prop_object_release(pn);
    108 
    109 	pd = prop_data_create_data_nocopy(board_bios.mac_address_local,
    110 					  sizeof(board_bios.mac_address_local));
    111 	KASSERT(pd != NULL);
    112 	if (prop_dictionary_set(board_properties, "emac0-mac-addr",
    113 				pd) == FALSE)
    114 		panic("setting emac0-mac-addr");
    115 	prop_object_release(pd);
    116 
    117 	pd = prop_data_create_data_nocopy(board_bios.mac_address_pci,
    118 					  sizeof(board_bios.mac_address_pci));
    119 	KASSERT(pd != NULL);
    120 	if (prop_dictionary_set(board_properties, "sip0-mac-addr",
    121 				pd) == FALSE)
    122 		panic("setting sip0-mac-addr");
    123 	prop_object_release(pd);
    124 
    125 	pn = prop_number_create_integer(board_bios.processor_speed);
    126 	KASSERT(pn != NULL);
    127 	if (prop_dictionary_set(board_properties, "processor-frequency",
    128 				pn) == FALSE)
    129 		panic("setting processor-frequency");
    130 	prop_object_release(pn);
    131 
    132 	pn = prop_number_create_integer(board_bios.plb_speed);
    133 	KASSERT(pn != NULL);
    134 	if (prop_dictionary_set(board_properties, "plb-frequency", pn) == FALSE)
    135 		panic("setting plb-frequency");
    136 	prop_object_release(pn);
    137 
    138 	pn = prop_number_create_integer(board_bios.pci_speed);
    139 	KASSERT(pn != NULL);
    140 	if (prop_dictionary_set(board_properties, "pci-frequency", pn) == FALSE)
    141 		panic("setting pci-frequency");
    142 	prop_object_release(pn);
    143 }
    144 
    145 
    146 void
    147 openbios_board_print(void)
    148 {
    149 
    150 	printf("Board config data:\n");
    151 	printf("  usr_config_ver = %s\n", board_bios.usr_config_ver);
    152 	printf("  rom_sw_ver = %s\n", board_bios.rom_sw_ver);
    153 	printf("  mem_size = %u\n", board_bios.mem_size);
    154 	printf("  mac_address_local = %02x:%02x:%02x:%02x:%02x:%02x\n",
    155 	    board_bios.mac_address_local[0], board_bios.mac_address_local[1],
    156 	    board_bios.mac_address_local[2], board_bios.mac_address_local[3],
    157 	    board_bios.mac_address_local[4], board_bios.mac_address_local[5]);
    158 	printf("  mac_address_pci = %02x:%02x:%02x:%02x:%02x:%02x\n",
    159 	    board_bios.mac_address_pci[0], board_bios.mac_address_pci[1],
    160 	    board_bios.mac_address_pci[2], board_bios.mac_address_pci[3],
    161 	    board_bios.mac_address_pci[4], board_bios.mac_address_pci[5]);
    162 	printf("  processor_speed = %u\n", board_bios.processor_speed);
    163 	printf("  plb_speed = %u\n", board_bios.plb_speed);
    164 	printf("  pci_speed = %u\n", board_bios.pci_speed);
    165 }
    166