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 <version.h> 26 #include <watchdog.h> 27 #include <net.h> 28 #include <environment.h> 29 30 #ifdef CONFIG_BITBANGMII 31 #include <miiphy.h> 32 #endif 33 34 DECLARE_GLOBAL_DATA_PTR; 35 36 extern int cpu_init(void); 37 extern int board_init(void); 38 extern int dram_init(void); 39 extern int timer_init(void); 40 41 unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; 42 43 #ifndef CONFIG_SYS_NO_FLASH 44 static int sh_flash_init(void) 45 { 46 gd->bd->bi_flashsize = flash_init(); 47 48 if (gd->bd->bi_flashsize >= (1024 * 1024)) 49 printf("Flash: %ldMB\n", gd->bd->bi_flashsize / (1024*1024)); 50 else 51 printf("Flash: %ldKB\n", gd->bd->bi_flashsize / 1024); 52 53 return 0; 54 } 55 #endif /* CONFIG_SYS_NO_FLASH */ 56 57 #if defined(CONFIG_CMD_NAND) 58 # include <nand.h> 59 # define INIT_FUNC_NAND_INIT nand_init, 60 #else 61 # define INIT_FUNC_NAND_INIT 62 #endif /* CONFIG_CMD_NAND */ 63 64 #if defined(CONFIG_WATCHDOG) 65 extern int watchdog_init(void); 66 extern int watchdog_disable(void); 67 # define INIT_FUNC_WATCHDOG_INIT watchdog_init, 68 # define WATCHDOG_DISABLE watchdog_disable 69 #else 70 # define INIT_FUNC_WATCHDOG_INIT 71 # define WATCHDOG_DISABLE 72 #endif /* CONFIG_WATCHDOG */ 73 74 #if defined(CONFIG_CMD_IDE) 75 # include <ide.h> 76 # define INIT_FUNC_IDE_INIT ide_init, 77 #else 78 # define INIT_FUNC_IDE_INIT 79 #endif /* CONFIG_CMD_IDE */ 80 81 #if defined(CONFIG_PCI) 82 #include <pci.h> 83 static int sh_pci_init(void) 84 { 85 pci_init(); 86 return 0; 87 } 88 # define INIT_FUNC_PCI_INIT sh_pci_init, 89 #else 90 # define INIT_FUNC_PCI_INIT 91 #endif /* CONFIG_PCI */ 92 93 static int sh_mem_env_init(void) 94 { 95 mem_malloc_init(CONFIG_SYS_TEXT_BASE - GENERATED_GBL_DATA_SIZE - 96 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16); 97 env_relocate(); 98 jumptable_init(); 99 return 0; 100 } 101 102 #if defined(CONFIG_CMD_NET) 103 static int sh_net_init(void) 104 { 105 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); 106 return 0; 107 } 108 #endif 109 110 typedef int (init_fnc_t) (void); 111 112 init_fnc_t *init_sequence[] = 113 { 114 cpu_init, /* basic cpu dependent setup */ 115 board_init, /* basic board dependent setup */ 116 interrupt_init, /* set up exceptions */ 117 env_init, /* event init */ 118 serial_init, /* SCIF init */ 119 INIT_FUNC_WATCHDOG_INIT /* watchdog init */ 120 console_init_f, 121 display_options, 122 checkcpu, 123 checkboard, /* Check support board */ 124 dram_init, /* SDRAM init */ 125 timer_init, /* SuperH Timer (TCNT0 only) init */ 126 sh_mem_env_init, 127 #ifndef CONFIG_SYS_NO_FLASH 128 sh_flash_init, /* Flash memory init*/ 129 #endif 130 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ 131 INIT_FUNC_PCI_INIT /* PCI init */ 132 stdio_init, 133 console_init_r, 134 interrupt_init, 135 #ifdef BOARD_LATE_INIT 136 board_late_init, 137 #endif 138 #if defined(CONFIG_CMD_NET) 139 sh_net_init, /* SH specific eth init */ 140 #endif 141 NULL /* Terminate this list */ 142 }; 143 144 void sh_generic_init(void) 145 { 146 bd_t *bd; 147 init_fnc_t **init_fnc_ptr; 148 149 memset(gd, 0, GENERATED_GBL_DATA_SIZE); 150 151 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ 152 153 gd->bd = (bd_t *)(gd + 1); /* At end of global data */ 154 gd->baudrate = CONFIG_BAUDRATE; 155 156 gd->cpu_clk = CONFIG_SYS_CLK_FREQ; 157 158 bd = gd->bd; 159 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; 160 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; 161 #ifndef CONFIG_SYS_NO_FLASH 162 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 163 #endif 164 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) 165 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; 166 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; 167 #endif 168 bd->bi_baudrate = CONFIG_BAUDRATE; 169 170 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { 171 WATCHDOG_RESET(); 172 if ((*init_fnc_ptr) () != 0) 173 hang(); 174 } 175 176 #ifdef CONFIG_WATCHDOG 177 /* disable watchdog if environment is set */ 178 { 179 char *s = getenv("watchdog"); 180 if (s != NULL) 181 if (strncmp(s, "off", 3) == 0) 182 WATCHDOG_DISABLE(); 183 } 184 #endif /* CONFIG_WATCHDOG*/ 185 186 187 #ifdef CONFIG_BITBANGMII 188 bb_miiphy_init(); 189 #endif 190 #if defined(CONFIG_CMD_NET) 191 { 192 char *s; 193 puts("Net: "); 194 eth_initialize(gd->bd); 195 196 s = getenv("bootfile"); 197 if (s != NULL) 198 copy_filename(BootFile, s, sizeof(BootFile)); 199 } 200 #endif /* CONFIG_CMD_NET */ 201 202 while (1) { 203 WATCHDOG_RESET(); 204 main_loop(); 205 } 206 } 207 208 /***********************************************************************/ 209 210 void hang(void) 211 { 212 puts("Board ERROR\n"); 213 for (;;) 214 ; 215 } 216