1 /* 2 * Copyright (C) 2007, 2008, 2010 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 50 if (gd->bd->bi_flashsize >= (1024 * 1024)) 51 printf("Flash: %ldMB\n", gd->bd->bi_flashsize / (1024*1024)); 52 else 53 printf("Flash: %ldKB\n", gd->bd->bi_flashsize / 1024); 54 55 return 0; 56 } 57 58 #if defined(CONFIG_CMD_NAND) 59 # include <nand.h> 60 # define INIT_FUNC_NAND_INIT nand_init, 61 #else 62 # define INIT_FUNC_NAND_INIT 63 #endif /* CONFIG_CMD_NAND */ 64 65 #if defined(CONFIG_WATCHDOG) 66 extern int watchdog_init(void); 67 extern int watchdog_disable(void); 68 # define INIT_FUNC_WATCHDOG_INIT watchdog_init, 69 # define WATCHDOG_DISABLE watchdog_disable 70 #else 71 # define INIT_FUNC_WATCHDOG_INIT 72 # define WATCHDOG_DISABLE 73 #endif /* CONFIG_WATCHDOG */ 74 75 #if defined(CONFIG_CMD_IDE) 76 # include <ide.h> 77 # define INIT_FUNC_IDE_INIT ide_init, 78 #else 79 # define INIT_FUNC_IDE_INIT 80 #endif /* CONFIG_CMD_IDE */ 81 82 #if defined(CONFIG_PCI) 83 #include <pci.h> 84 static int sh_pci_init(void) 85 { 86 pci_init(); 87 return 0; 88 } 89 # define INIT_FUNC_PCI_INIT sh_pci_init, 90 #else 91 # define INIT_FUNC_PCI_INIT 92 #endif /* CONFIG_PCI */ 93 94 static int sh_mem_env_init(void) 95 { 96 mem_malloc_init(CONFIG_SYS_TEXT_BASE - GENERATED_GBL_DATA_SIZE - 97 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16); 98 env_relocate(); 99 jumptable_init(); 100 return 0; 101 } 102 103 #if defined(CONFIG_CMD_NET) 104 static int sh_net_init(void) 105 { 106 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); 107 return 0; 108 } 109 #endif 110 111 typedef int (init_fnc_t) (void); 112 113 init_fnc_t *init_sequence[] = 114 { 115 cpu_init, /* basic cpu dependent setup */ 116 board_init, /* basic board dependent setup */ 117 interrupt_init, /* set up exceptions */ 118 env_init, /* event init */ 119 serial_init, /* SCIF init */ 120 INIT_FUNC_WATCHDOG_INIT /* watchdog init */ 121 console_init_f, 122 display_options, 123 checkcpu, 124 checkboard, /* Check support board */ 125 dram_init, /* SDRAM init */ 126 timer_init, /* SuperH Timer (TCNT0 only) init */ 127 sh_mem_env_init, 128 sh_flash_init, /* Flash memory(NOR) init*/ 129 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ 130 INIT_FUNC_PCI_INIT /* PCI init */ 131 stdio_init, 132 console_init_r, 133 interrupt_init, 134 #ifdef BOARD_LATE_INIT 135 board_late_init, 136 #endif 137 #if defined(CONFIG_CMD_NET) 138 sh_net_init, /* SH specific eth init */ 139 #endif 140 NULL /* Terminate this list */ 141 }; 142 143 void sh_generic_init(void) 144 { 145 bd_t *bd; 146 init_fnc_t **init_fnc_ptr; 147 148 memset(gd, 0, GENERATED_GBL_DATA_SIZE); 149 150 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ 151 152 gd->bd = (bd_t *)(gd + 1); /* At end of global data */ 153 gd->baudrate = CONFIG_BAUDRATE; 154 155 gd->cpu_clk = CONFIG_SYS_CLK_FREQ; 156 157 bd = gd->bd; 158 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; 159 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; 160 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 161 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) 162 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; 163 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; 164 #endif 165 bd->bi_baudrate = CONFIG_BAUDRATE; 166 167 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { 168 WATCHDOG_RESET(); 169 if ((*init_fnc_ptr) () != 0) 170 hang(); 171 } 172 173 #ifdef CONFIG_WATCHDOG 174 /* disable watchdog if environment is set */ 175 { 176 char *s = getenv("watchdog"); 177 if (s != NULL) 178 if (strncmp(s, "off", 3) == 0) 179 WATCHDOG_DISABLE(); 180 } 181 #endif /* CONFIG_WATCHDOG*/ 182 183 184 #ifdef CONFIG_BITBANGMII 185 bb_miiphy_init(); 186 #endif 187 #if defined(CONFIG_CMD_NET) 188 { 189 char *s; 190 puts("Net: "); 191 eth_initialize(gd->bd); 192 193 s = getenv("bootfile"); 194 if (s != NULL) 195 copy_filename(BootFile, s, sizeof(BootFile)); 196 } 197 #endif /* CONFIG_CMD_NET */ 198 199 while (1) { 200 WATCHDOG_RESET(); 201 main_loop(); 202 } 203 } 204 205 /***********************************************************************/ 206 207 void hang(void) 208 { 209 puts("Board ERROR\n"); 210 for (;;) 211 ; 212 } 213