1 /* 2 * Copyright (C) 2007, 2008, 2010 3 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <command.h> 10 #include <malloc.h> 11 #include <stdio_dev.h> 12 #include <version.h> 13 #include <watchdog.h> 14 #include <net.h> 15 #include <mmc.h> 16 #include <environment.h> 17 18 #ifdef CONFIG_BITBANGMII 19 #include <miiphy.h> 20 #endif 21 22 DECLARE_GLOBAL_DATA_PTR; 23 24 extern int cpu_init(void); 25 extern int board_init(void); 26 extern int dram_init(void); 27 extern int timer_init(void); 28 29 unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN; 30 31 #ifndef CONFIG_SYS_NO_FLASH 32 static int sh_flash_init(void) 33 { 34 gd->bd->bi_flashsize = flash_init(); 35 36 if (gd->bd->bi_flashsize >= (1024 * 1024)) 37 printf("Flash: %ldMB\n", gd->bd->bi_flashsize / (1024*1024)); 38 else 39 printf("Flash: %ldKB\n", gd->bd->bi_flashsize / 1024); 40 41 return 0; 42 } 43 #endif /* CONFIG_SYS_NO_FLASH */ 44 45 #if defined(CONFIG_CMD_NAND) 46 # include <nand.h> 47 # define INIT_FUNC_NAND_INIT nand_init, 48 #else 49 # define INIT_FUNC_NAND_INIT 50 #endif /* CONFIG_CMD_NAND */ 51 52 #if defined(CONFIG_WATCHDOG) 53 extern int watchdog_init(void); 54 extern int watchdog_disable(void); 55 # undef INIT_FUNC_WATCHDOG_INIT 56 # define INIT_FUNC_WATCHDOG_INIT watchdog_init, 57 # define WATCHDOG_DISABLE watchdog_disable 58 #else 59 # define INIT_FUNC_WATCHDOG_INIT 60 # define WATCHDOG_DISABLE 61 #endif /* CONFIG_WATCHDOG */ 62 63 #if defined(CONFIG_CMD_IDE) 64 # include <ide.h> 65 # define INIT_FUNC_IDE_INIT ide_init, 66 #else 67 # define INIT_FUNC_IDE_INIT 68 #endif /* CONFIG_CMD_IDE */ 69 70 #if defined(CONFIG_PCI) 71 #include <pci.h> 72 static int sh_pci_init(void) 73 { 74 pci_init(); 75 return 0; 76 } 77 # define INIT_FUNC_PCI_INIT sh_pci_init, 78 #else 79 # define INIT_FUNC_PCI_INIT 80 #endif /* CONFIG_PCI */ 81 82 static int sh_mem_env_init(void) 83 { 84 mem_malloc_init(CONFIG_SYS_TEXT_BASE - GENERATED_GBL_DATA_SIZE - 85 CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN - 16); 86 env_relocate(); 87 jumptable_init(); 88 return 0; 89 } 90 91 #if defined(CONFIG_CMD_MMC) 92 static int sh_mmc_init(void) 93 { 94 puts("MMC: "); 95 mmc_initialize(gd->bd); 96 return 0; 97 } 98 #endif 99 100 typedef int (init_fnc_t) (void); 101 102 init_fnc_t *init_sequence[] = 103 { 104 cpu_init, /* basic cpu dependent setup */ 105 board_init, /* basic board dependent setup */ 106 interrupt_init, /* set up exceptions */ 107 env_init, /* event init */ 108 serial_init, /* SCIF init */ 109 INIT_FUNC_WATCHDOG_INIT /* watchdog init */ 110 console_init_f, 111 display_options, 112 checkcpu, 113 checkboard, /* Check support board */ 114 dram_init, /* SDRAM init */ 115 timer_init, /* SuperH Timer (TCNT0 only) init */ 116 sh_mem_env_init, 117 #ifndef CONFIG_SYS_NO_FLASH 118 sh_flash_init, /* Flash memory init*/ 119 #endif 120 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */ 121 INIT_FUNC_PCI_INIT /* PCI init */ 122 stdio_init, 123 console_init_r, 124 interrupt_init, 125 #ifdef CONFIG_BOARD_LATE_INIT 126 board_late_init, 127 #endif 128 #if defined(CONFIG_CMD_MMC) 129 sh_mmc_init, 130 #endif 131 NULL /* Terminate this list */ 132 }; 133 134 void sh_generic_init(void) 135 { 136 bd_t *bd; 137 init_fnc_t **init_fnc_ptr; 138 139 memset(gd, 0, GENERATED_GBL_DATA_SIZE); 140 141 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ 142 143 gd->bd = (bd_t *)(gd + 1); /* At end of global data */ 144 gd->baudrate = CONFIG_BAUDRATE; 145 146 gd->cpu_clk = CONFIG_SYS_CLK_FREQ; 147 148 bd = gd->bd; 149 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; 150 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; 151 #ifndef CONFIG_SYS_NO_FLASH 152 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; 153 #endif 154 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) 155 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE; 156 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; 157 #endif 158 159 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { 160 WATCHDOG_RESET(); 161 if ((*init_fnc_ptr) () != 0) 162 hang(); 163 } 164 165 #ifdef CONFIG_WATCHDOG 166 /* disable watchdog if environment is set */ 167 { 168 char *s = getenv("watchdog"); 169 if (s != NULL) 170 if (strncmp(s, "off", 3) == 0) 171 WATCHDOG_DISABLE(); 172 } 173 #endif /* CONFIG_WATCHDOG*/ 174 175 176 #ifdef CONFIG_BITBANGMII 177 bb_miiphy_init(); 178 #endif 179 #if defined(CONFIG_CMD_NET) 180 puts("Net: "); 181 eth_initialize(gd->bd); 182 #endif /* CONFIG_CMD_NET */ 183 184 while (1) { 185 WATCHDOG_RESET(); 186 main_loop(); 187 } 188 } 189