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      1 /*	$NetBSD: century_bios.c,v 1.5 2011/06/18 06:44:26 matt 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 1.5 2011/06/18 06:44:26 matt Exp $");
     35 
     36 #include <sys/param.h>
     37 #include <sys/systm.h>
     38 #include <sys/cpu.h>
     39 
     40 #include <powerpc/ibm4xx/cpu.h>
     41 
     42 #include <machine/century_bios.h>
     43 
     44 /*
     45  * OpenBlockS S/R Board configuration structure.
     46  *
     47  * IBM405GP Monitor (Ver. 1.8, REV-01  H/W)
     48  * Century Version  (MA-300) (Oct. 30, 2001)
     49  */
     50 struct board_bios_data {
     51 	unsigned char	mac_address_local[6];
     52 	unsigned char	boot_mode;
     53 	unsigned char	mem_size;		/* MB */
     54 };
     55 
     56 static struct board_bios_data	board_bios;
     57 static unsigned int		board_mem_size;
     58 static unsigned int		board_cpu_speed;
     59 static unsigned int		board_plb_speed;
     60 static unsigned int		board_pci_speed;
     61 
     62 void
     63 bios_board_init(void *info_block, u_int sysclk_base)
     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 	board_mem_size = board_bios.mem_size * 1024 * 1024;
     72 
     73 	board_cpu_speed = 0x0bebc200;
     74 	board_plb_speed = 0x05f5e100;
     75 	board_pci_speed = 0x01f78a40;
     76 }
     77 
     78 unsigned int
     79 bios_board_memsize_get(void)
     80 {
     81 	return board_mem_size;
     82 }
     83 
     84 void
     85 bios_board_info_set(void)
     86 {
     87 	prop_number_t pn;
     88 	prop_data_t pd;
     89 
     90 	/* Initialize board properties dictionary */
     91 	board_info_init();
     92 
     93 	pn = prop_number_create_integer(board_mem_size);
     94 	KASSERT(pn != NULL);
     95 	if (prop_dictionary_set(board_properties, "mem-size", pn) == false)
     96 		panic("setting mem-size");
     97 	prop_object_release(pn);
     98 
     99 	pd = prop_data_create_data_nocopy(board_bios.mac_address_local,
    100 					  sizeof(board_bios.mac_address_local));
    101 	KASSERT(pd != NULL);
    102 	if (prop_dictionary_set(board_properties, "emac0-mac-addr",
    103 				pd) == false)
    104 		panic("setting emac0-mac-addr");
    105 	prop_object_release(pd);
    106 
    107 	pn = prop_number_create_integer(board_cpu_speed);
    108 	KASSERT(pn != NULL);
    109 	if (prop_dictionary_set(board_properties, "processor-frequency",
    110 				pn) == false)
    111 		panic("setting processor-frequency");
    112 	prop_object_release(pn);
    113 
    114 	pn = prop_number_create_integer(board_plb_speed);
    115 	KASSERT(pn != NULL);
    116 	if (prop_dictionary_set(board_properties, "plb-frequency", pn) == false)
    117 		panic("setting plb-frequency");
    118 	prop_object_release(pn);
    119 
    120 	pn = prop_number_create_integer(board_pci_speed);
    121 	KASSERT(pn != NULL);
    122 	if (prop_dictionary_set(board_properties, "pci-frequency", pn) == false)
    123 		panic("setting pci-frequency");
    124 	prop_object_release(pn);
    125 }
    126 
    127 
    128 void
    129 bios_board_print(void)
    130 {
    131 
    132 	printf("Board config data:\n");
    133 	printf("  mem_size = %u\n", board_mem_size);
    134 	printf("  mac_address_local = %02x:%02x:%02x:%02x:%02x:%02x\n",
    135 	    board_bios.mac_address_local[0], board_bios.mac_address_local[1],
    136 	    board_bios.mac_address_local[2], board_bios.mac_address_local[3],
    137 	    board_bios.mac_address_local[4], board_bios.mac_address_local[5]);
    138 	printf("  processor_speed = %u\n", board_cpu_speed);
    139 	printf("  plb_speed = %u\n", board_plb_speed);
    140 	printf("  pci_speed = %u\n", board_pci_speed);
    141 }
    142