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 <syscall.h>
  31 #include <net.h>
  32 #include <version.h>
  33 #include <dtt.h>
  34 #include <mpc824x.h>
  35 #include <asm/processor.h>
  36 #include <linux/mtd/doc2000.h>
  37
  38 #include "bmw.h"
  39 #include "m48t59y.h"
  40 #include <pci.h>
  41
  42
  43 int checkboard(void)
  44 {
  45     ulong busfreq  = get_bus_freq(0);
  46     char  buf[32];
  47
  48     puts ("Board: BMW MPC8245/KAHLUA2 - CHRP (MAP B)\n");
  49     printf("Built: %s at %s\n", __DATE__ , __TIME__ );
  50     /* printf("MPLD:  Revision %d\n", SYS_REVID_GET()); */
  51     printf("Local Bus at %s MHz\n", strmhz(buf, busfreq));
  52     return 0;
  53 }
  54
  55 long int initdram(int board_type)
  56 {
  57     return 64*1024*1024;
  58 }
  59
  60
  61 void
  62 get_tod(void)
  63 {
  64     int year, month, day, hour, minute, second;
  65
  66     m48_tod_get(&year,
  67                 &month,
  68                 &day,
  69                 &hour,
  70                 &minute,
  71                 &second);
  72
  73     printf("  Current date/time: %d/%d/%d %d:%d:%d \n",
  74            month, day, year, hour, minute, second);
  75
  76 }
  77
  78 /*
  79  * EPIC, PCI, and I/O devices.
  80  * Initialize Mousse Platform, probe for PCI devices,
  81  * Query configuration parameters if not set.
  82  */
  83 int misc_init_f (void)
  84 {
  85 #if 0
  86     m48_tod_init(); /* Init SGS M48T59Y TOD/NVRAM */
  87     printf("RTC:   M48T589 TOD/NVRAM (%d) bytes\n",
  88            TOD_NVRAM_SIZE);
  89     get_tod();
  90 #endif
  91
  92     sys_led_msg("BOOT");
  93     return 0;
  94 }
  95
  96
  97 /*
  98  * Initialize PCI Devices, report devices found.
  99  */
 100 struct pci_controller hose;
 101
 102 void pci_init_board (void)
 103 {
 104     pci_mpc824x_init(&hose);
 105     /* pci_dev_init(0); */
 106 }
 107
 108 /*
 109  * Write characters to LCD display.
 110  * Note that the bytes for the first character is the last address.
 111  */
 112 void
 113 sys_led_msg(char* msg)
 114 {
 115     LED_REG(0) = msg[3];
 116     LED_REG(1) = msg[2];
 117     LED_REG(2) = msg[1];
 118     LED_REG(3) = msg[0];
 119 }
 120
 121 /*
 122  * Map onboard TSOP-16MB DOC FLASH chip.
 123  */
 124 void doc_init (void)
 125 {
 126     doc_probe(DOC_BASE_ADDR);
 127 }
 128
 129 #define NV_ADDR ((volatile unsigned char *) CFG_ENV_ADDR)
 130
 131 /* Read from NVRAM */
 132 void*
 133 nvram_read(void *dest, const long src, size_t count)
 134 {
 135     int i;
 136     volatile unsigned char* d = (unsigned char*)dest;
 137     volatile unsigned char* s = (unsigned char*)src;
 138
 139     for( i = 0; i < count;i++)
 140         d[i] = s[i];
 141
 142     return dest;
 143 }
 144
 145 /* Write to NVRAM */
 146 void
 147 nvram_write(long dest, const void *src, size_t count)
 148 {
 149     int i;
 150     volatile unsigned char* d = (unsigned char*)dest;
 151     volatile unsigned char* s = (unsigned char*)src;
 152
 153     SYS_TOD_UNPROTECT();
 154
 155     for( i = 0; i < count;i++)
 156         d[i] = s[i];
 157
 158     SYS_TOD_PROTECT();
 159 }