board/bf537-stamp/bf537-stamp.c

   1 /*
   2  * U-boot - main board file
   3  *
   4  * Copyright (c) 2005-2008 Analog Devices Inc.
   5  *
   6  * (C) Copyright 2000-2004
   7  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   8  *
   9  * See file CREDITS for list of people who contributed to this
  10  * project.
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License as
  14  * published by the Free Software Foundation; either version 2 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  25  * MA 02110-1301 USA
  26  */
  27
  28 #include <common.h>
  29 #include <config.h>
  30 #include <command.h>
  31 #include <asm/blackfin.h>
  32 #include <asm/net.h>
  33 #include <net.h>
  34 #include <asm/mach-common/bits/bootrom.h>
  35 #include <netdev.h>
  36
  37 DECLARE_GLOBAL_DATA_PTR;
  38
  39 int checkboard(void)
  40 {
  41         printf("Board: ADI BF537 stamp board\n");
  42         printf("       Support: http://blackfin.uclinux.org/\n");
  43         return 0;
  44 }
  45
  46 #if defined(CONFIG_BFIN_IDE)
  47
  48 void cf_outb(unsigned char val, volatile unsigned char *addr)
  49 {
  50         *(addr) = val;
  51         SSYNC();
  52 }
  53
  54 unsigned char cf_inb(volatile unsigned char *addr)
  55 {
  56         volatile unsigned char c;
  57
  58         c = *(addr);
  59         SSYNC();
  60
  61         return c;
  62 }
  63
  64 void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
  65 {
  66         int i;
  67
  68         for (i = 0; i < words; i++)
  69                 *(sect_buf + i) = *(addr);
  70         SSYNC();
  71 }
  72
  73 void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
  74 {
  75         int i;
  76
  77         for (i = 0; i < words; i++)
  78                 *(addr) = *(sect_buf + i);
  79         SSYNC();
  80 }
  81 #endif                          /* CONFIG_BFIN_IDE */
  82
  83 phys_size_t initdram(int board_type)
  84 {
  85         gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  86         gd->bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
  87         return gd->bd->bi_memsize;
  88 }
  89
  90 void board_reset(void)
  91 {
  92         /* workaround for weak pull ups on ssel */
  93         if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_SPI_MASTER) {
  94                 bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~PF10);
  95                 bfin_write_PORTFIO_SET(PF10);
  96                 udelay(1);
  97         }
  98 }
  99
 100 #ifdef CONFIG_BFIN_MAC
 101 static void board_init_enetaddr(uchar *mac_addr)
 102 {
 103 #ifdef CONFIG_SYS_NO_FLASH
 104 # define USE_MAC_IN_FLASH 0
 105 #else
 106 # define USE_MAC_IN_FLASH 1
 107 #endif
 108         bool valid_mac = false;
 109
 110         if (USE_MAC_IN_FLASH) {
 111                 /* we cram the MAC in the last flash sector */
 112                 uchar *board_mac_addr = (uchar *)0x203F0000;
 113                 if (is_valid_ether_addr(board_mac_addr)) {
 114                         memcpy(mac_addr, board_mac_addr, 6);
 115                         valid_mac = true;
 116                 }
 117         }
 118
 119         if (!valid_mac) {
 120                 puts("Warning: Generating 'random' MAC address\n");
 121                 bfin_gen_rand_mac(mac_addr);
 122         }
 123
 124         eth_setenv_enetaddr("ethaddr", mac_addr);
 125 }
 126
 127 int board_eth_init(bd_t *bis)
 128 {
 129         return bfin_EMAC_initialize(bis);
 130 }
 131 #endif
 132
 133 #if defined(CONFIG_MISC_INIT_R)
 134 /* miscellaneous platform dependent initialisations */
 135 int misc_init_r(void)
 136 {
 137 #ifdef CONFIG_BFIN_MAC
 138         uchar enetaddr[6];
 139         if (!eth_getenv_enetaddr("ethaddr", enetaddr))
 140                 board_init_enetaddr(enetaddr);
 141 #endif
 142
 143 #ifndef CONFIG_SYS_NO_FLASH
 144         /* we use the last sector for the MAC address / POST LDR */
 145         extern flash_info_t flash_info[];
 146         flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF, &flash_info[0]);
 147 #endif
 148
 149 #if defined(CONFIG_BFIN_IDE)
 150 #if defined(CONFIG_BFIN_TRUE_IDE)
 151         /* Enable ATASEL when in True IDE mode */
 152         printf("Using CF True IDE Mode\n");
 153         cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
 154         udelay(1000);
 155 #elif defined(CONFIG_BFIN_CF_IDE)
 156         /* Disable ATASEL when we're in Common Memory Mode */
 157         printf("Using CF Common Memory Mode\n");
 158         cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
 159         udelay(1000);
 160 #elif defined(CONFIG_BFIN_HDD_IDE)
 161         printf("Using HDD IDE Mode\n");
 162 #endif
 163         ide_init();
 164 #endif                          /* CONFIG_BFIN_IDE */
 165         return 0;
 166 }
 167 #endif                          /* CONFIG_MISC_INIT_R */