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 # 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_MMC) 104 static int sh_mmc_init(void) 105 { 106 puts("MMC: "); 107 mmc_initialize(gd->bd); 108 return 0; 109 } 110 #endif 111 112 typedef int (init_fnc_t) (void); 113 114 init_fnc_t *init_sequence[] = 115 { 116 cpu_init, /* basic cpu dependent setup */ 117 board_init, /* basic board dependent setup */ 118 interrupt_init, /* set up exceptions */ 119 env_init, /* event init */ 120 serial_init, /* SCIF init */ 121 INIT_FUNC_WATCHDOG_INIT /* watchdog init */ 122 console_init_f, 123 display_options, 124 checkcpu, 125 checkboard, /* Check support board */ 126 dram_init, /* SDRAM init */ 127 timer_init, /* SuperH Timer (TCNT0 only) init */ 128 sh_mem_env_init, 129 #ifndef CONFIG_SYS_NO_FLASH 130 sh_flash_init, /* Flash memory init*/ 131 #endif 132 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ 133 INIT_FUNC_PCI_INIT /* PCI init */ 134 stdio_init, 135 console_init_r, 136 interrupt_init, 137 #ifdef CONFIG_BOARD_LATE_INIT 138 board_late_init, 139 #endif 140 #if defined(CONFIG_CMD_MMC) 141 sh_mmc_init, 142 #endif 143 NULL /* Terminate this list */ 144 }; 145 146 void sh_generic_init(void) 147 { 148 bd_t *bd; 149 init_fnc_t **init_fnc_ptr; 150 151 memset(gd, 0, GENERATED_GBL_DATA_SIZE); 152 153 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ 154 155 gd->bd = (bd_t *)(gd + 1); /* At end of global data */ 156 gd->baudrate = CONFIG_BAUDRATE; 157 158 gd->cpu_clk = CONFIG_SYS_CLK_FREQ; 159 160 bd = gd->bd; 161 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; 162 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; 163 #ifndef CONFIG_SYS_NO_FLASH 164 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 165 #endif 166 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) 167 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; 168 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; 169 #endif 170 bd->bi_baudrate = CONFIG_BAUDRATE; 171 172 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { 173 WATCHDOG_RESET(); 174 if ((*init_fnc_ptr) () != 0) 175 hang(); 176 } 177 178 #ifdef CONFIG_WATCHDOG 179 /* disable watchdog if environment is set */ 180 { 181 char *s = getenv("watchdog"); 182 if (s != NULL) 183 if (strncmp(s, "off", 3) == 0) 184 WATCHDOG_DISABLE(); 185 } 186 #endif /* CONFIG_WATCHDOG*/ 187 188 189 #ifdef CONFIG_BITBANGMII 190 bb_miiphy_init(); 191 #endif 192 #if defined(CONFIG_CMD_NET) 193 puts("Net: "); 194 eth_initialize(gd->bd); 195 #endif /* CONFIG_CMD_NET */ 196 197 while (1) { 198 WATCHDOG_RESET(); 199 main_loop(); 200 } 201 } 202 203 /***********************************************************************/ 204 205 void hang(void) 206 { 207 puts("Board ERROR\n"); 208 for (;;) 209 ; 210 } 211