board/bmw/bmw.c

   1 /*
   2  * (C) Copyright 2002
   3  * James F. Dougherty, Broadcom Corporation, jfd@broadcom.com
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25 #include <common.h>
  26 #include <watchdog.h>
  27 #include <command.h>
  28 #include <malloc.h>
  29 #include <devices.h>
  30 #include <net.h>
  31 #include <version.h>
  32 #include <dtt.h>
  33 #include <mpc824x.h>
  34 #include <asm/processor.h>
  35 #include <linux/mtd/doc2000.h>
  36
  37 #include "bmw.h"
  38 #include "m48t59y.h"
  39 #include <pci.h>
  40
  41
  42 int checkboard(void)
  43 {
  44     ulong busfreq  = get_bus_freq(0);
  45     char  buf[32];
  46
  47     puts ("Board: BMW MPC8245/KAHLUA2 - CHRP (MAP B)\n");
  48     printf("Built: %s at %s\n", __DATE__ , __TIME__ );
  49     /* printf("MPLD:  Revision %d\n", SYS_REVID_GET()); */
  50     printf("Local Bus at %s MHz\n", strmhz(buf, busfreq));
  51     return 0;
  52 }
  53
  54 long int initdram(int board_type)
  55 {
  56     return 64*1024*1024;
  57 }
  58
  59
  60 void
  61 get_tod(void)
  62 {
  63     int year, month, day, hour, minute, second;
  64
  65     m48_tod_get(&year,
  66                 &month,
  67                 &day,
  68                 &hour,
  69                 &minute,
  70                 &second);
  71
  72     printf("  Current date/time: %d/%d/%d %d:%d:%d \n",
  73            month, day, year, hour, minute, second);
  74
  75 }
  76
  77 /*
  78  * EPIC, PCI, and I/O devices.
  79  * Initialize Mousse Platform, probe for PCI devices,
  80  * Query configuration parameters if not set.
  81  */
  82 int misc_init_f (void)
  83 {
  84 #if 0
  85     m48_tod_init(); /* Init SGS M48T59Y TOD/NVRAM */
  86     printf("RTC:   M48T589 TOD/NVRAM (%d) bytes\n",
  87            TOD_NVRAM_SIZE);
  88     get_tod();
  89 #endif
  90
  91     sys_led_msg("BOOT");
  92     return 0;
  93 }
  94
  95
  96 /*
  97  * Initialize PCI Devices, report devices found.
  98  */
  99 struct pci_controller hose;
 100
 101 void pci_init_board (void)
 102 {
 103     pci_mpc824x_init(&hose);
 104     /* pci_dev_init(0); */
 105 }
 106
 107 /*
 108  * Write characters to LCD display.
 109  * Note that the bytes for the first character is the last address.
 110  */
 111 void
 112 sys_led_msg(char* msg)
 113 {
 114     LED_REG(0) = msg[3];
 115     LED_REG(1) = msg[2];
 116     LED_REG(2) = msg[1];
 117     LED_REG(3) = msg[0];
 118 }
 119
 120 /*
 121  * Map onboard TSOP-16MB DOC FLASH chip.
 122  */
 123 void doc_init (void)
 124 {
 125     doc_probe(DOC_BASE_ADDR);
 126 }
 127
 128 #define NV_ADDR ((volatile unsigned char *) CFG_ENV_ADDR)
 129
 130 /* Read from NVRAM */
 131 void*
 132 nvram_read(void *dest, const long src, size_t count)
 133 {
 134     int i;
 135     volatile unsigned char* d = (unsigned char*)dest;
 136     volatile unsigned char* s = (unsigned char*)src;
 137
 138     for( i = 0; i < count;i++)
 139         d[i] = s[i];
 140
 141     return dest;
 142 }
 143
 144 /* Write to NVRAM */
 145 void
 146 nvram_write(long dest, const void *src, size_t count)
 147 {
 148     int i;
 149     volatile unsigned char* d = (unsigned char*)dest;
 150     volatile unsigned char* s = (unsigned char*)src;
 151
 152     SYS_TOD_UNPROTECT();
 153
 154     for( i = 0; i < count;i++)
 155         d[i] = s[i];
 156
 157     SYS_TOD_PROTECT();
 158 }