1 /* 2 * Copyright (C) 2007,2008 3 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation; either version 2 of 8 * the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 18 * MA 02111-1307 USA 19 */ 20 21 #include <common.h> 22 #include <command.h> 23 #include <malloc.h> 24 #include <stdio_dev.h> 25 #include <timestamp.h> 26 #include <version.h> 27 #include <watchdog.h> 28 #include <net.h> 29 #include <environment.h> 30 31 #ifdef CONFIG_BITBANGMII 32 #include <miiphy.h> 33 #endif 34 35 DECLARE_GLOBAL_DATA_PTR; 36 37 extern int cpu_init(void); 38 extern int board_init(void); 39 extern int dram_init(void); 40 extern int timer_init(void); 41 42 const char version_string[] = U_BOOT_VERSION" ("U_BOOT_DATE" - "U_BOOT_TIME")"; 43 44 unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; 45 46 static int sh_flash_init(void) 47 { 48 gd->bd->bi_flashsize = flash_init(); 49 printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024)); 50 51 return 0; 52 } 53 54 #if defined(CONFIG_CMD_NAND) 55 # include <nand.h> 56 # define INIT_FUNC_NAND_INIT nand_init, 57 #else 58 # define INIT_FUNC_NAND_INIT 59 #endif /* CONFIG_CMD_NAND */ 60 61 #if defined(CONFIG_WATCHDOG) 62 extern int watchdog_init(void); 63 extern int watchdog_disable(void); 64 # define INIT_FUNC_WATCHDOG_INIT watchdog_init, 65 # define WATCHDOG_DISABLE watchdog_disable 66 #else 67 # define INIT_FUNC_WATCHDOG_INIT 68 # define WATCHDOG_DISABLE 69 #endif /* CONFIG_WATCHDOG */ 70 71 #if defined(CONFIG_CMD_IDE) 72 # include <ide.h> 73 # define INIT_FUNC_IDE_INIT ide_init, 74 #else 75 # define INIT_FUNC_IDE_INIT 76 #endif /* CONFIG_CMD_IDE */ 77 78 #if defined(CONFIG_PCI) 79 #include <pci.h> 80 static int sh_pci_init(void) 81 { 82 pci_init(); 83 return 0; 84 } 85 # define INIT_FUNC_PCI_INIT sh_pci_init, 86 #else 87 # define INIT_FUNC_PCI_INIT 88 #endif /* CONFIG_PCI */ 89 90 static int sh_mem_env_init(void) 91 { 92 mem_malloc_init(CONFIG_SYS_TEXT_BASE - GENERATED_GBL_DATA_SIZE - 93 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16); 94 env_relocate(); 95 jumptable_init(); 96 return 0; 97 } 98 99 #if defined(CONFIG_CMD_NET) 100 static int sh_net_init(void) 101 { 102 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); 103 return 0; 104 } 105 #endif 106 107 typedef int (init_fnc_t) (void); 108 109 init_fnc_t *init_sequence[] = 110 { 111 cpu_init, /* basic cpu dependent setup */ 112 board_init, /* basic board dependent setup */ 113 interrupt_init, /* set up exceptions */ 114 env_init, /* event init */ 115 serial_init, /* SCIF init */ 116 INIT_FUNC_WATCHDOG_INIT /* watchdog init */ 117 console_init_f, 118 display_options, 119 checkcpu, 120 checkboard, /* Check support board */ 121 dram_init, /* SDRAM init */ 122 timer_init, /* SuperH Timer (TCNT0 only) init */ 123 sh_mem_env_init, 124 sh_flash_init, /* Flash memory(NOR) init*/ 125 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ 126 INIT_FUNC_PCI_INIT /* PCI init */ 127 stdio_init, 128 console_init_r, 129 interrupt_init, 130 #ifdef BOARD_LATE_INIT 131 board_late_init, 132 #endif 133 #if defined(CONFIG_CMD_NET) 134 sh_net_init, /* SH specific eth init */ 135 #endif 136 NULL /* Terminate this list */ 137 }; 138 139 void sh_generic_init(void) 140 { 141 bd_t *bd; 142 init_fnc_t **init_fnc_ptr; 143 144 memset(gd, 0, GENERATED_GBL_DATA_SIZE); 145 146 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ 147 148 gd->bd = (bd_t *)(gd + 1); /* At end of global data */ 149 gd->baudrate = CONFIG_BAUDRATE; 150 151 gd->cpu_clk = CONFIG_SYS_CLK_FREQ; 152 153 bd = gd->bd; 154 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; 155 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; 156 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 157 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) 158 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; 159 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; 160 #endif 161 bd->bi_baudrate = CONFIG_BAUDRATE; 162 163 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { 164 WATCHDOG_RESET(); 165 if ((*init_fnc_ptr) () != 0) 166 hang(); 167 } 168 169 #ifdef CONFIG_WATCHDOG 170 /* disable watchdog if environment is set */ 171 { 172 char *s = getenv("watchdog"); 173 if (s != NULL) 174 if (strncmp(s, "off", 3) == 0) 175 WATCHDOG_DISABLE(); 176 } 177 #endif /* CONFIG_WATCHDOG*/ 178 179 180 #ifdef CONFIG_BITBANGMII 181 bb_miiphy_init(); 182 #endif 183 #if defined(CONFIG_CMD_NET) 184 { 185 char *s; 186 puts("Net: "); 187 eth_initialize(gd->bd); 188 189 s = getenv("bootfile"); 190 if (s != NULL) 191 copy_filename(BootFile, s, sizeof(BootFile)); 192 } 193 #endif /* CONFIG_CMD_NET */ 194 195 while (1) { 196 WATCHDOG_RESET(); 197 main_loop(); 198 } 199 } 200 201 /***********************************************************************/ 202 203 void hang(void) 204 { 205 puts("Board ERROR\n"); 206 for (;;) 207 ; 208 } 209