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