/* * Copyright (C) 2007,2008 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <command.h> #include <malloc.h> #include <devices.h> #include <version.h> #include <net.h> #include <environment.h> extern void malloc_bin_reloc (void); extern int cpu_init(void); extern int board_init(void); extern int dram_init(void); extern int watchdog_init(void); extern int timer_init(void); const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"; unsigned long monitor_flash_len = CFG_MONITOR_LEN; static unsigned long mem_malloc_start; static unsigned long mem_malloc_end; static unsigned long mem_malloc_brk; static void mem_malloc_init (void) { mem_malloc_start = (TEXT_BASE - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN); mem_malloc_end = (mem_malloc_start + CFG_MALLOC_LEN - 16); mem_malloc_brk = mem_malloc_start; memset ((void *) mem_malloc_start, 0, (mem_malloc_end - mem_malloc_start)); } void *sbrk (ptrdiff_t increment) { unsigned long old = mem_malloc_brk; unsigned long new = old + increment; if ((new < mem_malloc_start) || (new > mem_malloc_end)) { return NULL; } mem_malloc_brk = new; return (void *) old; } static int sh_flash_init(void) { DECLARE_GLOBAL_DATA_PTR; gd->bd->bi_flashsize = flash_init(); printf("FLASH: %dMB\n", gd->bd->bi_flashsize / (1024*1024)); return 0; } #if defined(CONFIG_CMD_NAND) void nand_init (void); static int sh_nand_init(void) { printf("NAND: "); nand_init(); /* go init the NAND */ return 0; } #endif /* CONFIG_CMD_NAND */ #if defined(CONFIG_CMD_IDE) #include <ide.h> static int sh_marubun_init(void) { puts ("IDE: "); ide_init(); return 0; } #endif /* (CONFIG_CMD_IDE) */ #if defined(CONFIG_PCI) static int sh_pci_init(void) { pci_init(); return 0; } #endif /* CONFIG_PCI */ static int sh_mem_env_init(void) { mem_malloc_init(); malloc_bin_reloc(); env_relocate(); jumptable_init(); return 0; } static int sh_net_init(void) { DECLARE_GLOBAL_DATA_PTR; char *s, *e; int i; gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); s = getenv("ethaddr"); for (i = 0; i < 6; ++i) { gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; if (s) s = (*e) ? e + 1 : e; } return 0; } typedef int (init_fnc_t) (void); init_fnc_t *init_sequence[] = { cpu_init, /* basic cpu dependent setup */ board_init, /* basic board dependent setup */ interrupt_init, /* set up exceptions */ env_init, /* event init */ serial_init, /* SCIF init */ watchdog_init, /* watchdog init */ console_init_f, display_options, checkcpu, checkboard, /* Check support board */ dram_init, /* SDRAM init */ timer_init, /* SuperH Timer (TCNT0 only) init */ sh_flash_init, /* Flash memory(NOR) init*/ sh_mem_env_init, #if defined(CONFIG_CMD_NAND) sh_nand_init, /* Flash memory (NAND) init */ #endif #if defined(CONFIG_PCI) sh_pci_init, /* PCI Init */ #endif devices_init, console_init_r, interrupt_init, #ifdef BOARD_LATE_INIT board_late_init, #endif #if defined(CONFIG_CMD_NET) sh_net_init, /* SH specific eth init */ #endif NULL /* Terminate this list */ }; void sh_generic_init (void) { DECLARE_GLOBAL_DATA_PTR; bd_t *bd; init_fnc_t **init_fnc_ptr; char *s; int i; memset (gd, 0, CFG_GBL_DATA_SIZE); gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ gd->bd = (bd_t *) (gd + 1); /* At end of global data */ gd->baudrate = CONFIG_BAUDRATE; gd->cpu_clk = CONFIG_SYS_CLK_FREQ; bd = gd->bd; bd->bi_memstart = CFG_SDRAM_BASE; bd->bi_memsize = CFG_SDRAM_SIZE; bd->bi_flashstart = CFG_FLASH_BASE; #if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE) bd->bi_sramstart= CFG_SRAM_BASE; bd->bi_sramsize = CFG_SRAM_SIZE; #endif bd->bi_baudrate = CONFIG_BAUDRATE; for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr , i++) { if ((*init_fnc_ptr) () != 0) { hang(); } } #if defined(CONFIG_CMD_NET) puts ("Net: "); eth_initialize(gd->bd); if ((s = getenv ("bootfile")) != NULL) { copy_filename (BootFile, s, sizeof (BootFile)); } #endif /* CONFIG_CMD_NET */ while (1) { main_loop(); } } /***********************************************************************/ void hang (void) { puts ("Board ERROR\n"); for (;;); }