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Diffstat (limited to 'arch/i386/lib/board.c')
| -rw-r--r-- | arch/i386/lib/board.c | 480 |
1 files changed, 0 insertions, 480 deletions
diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c deleted file mode 100644 index 6d947c6..0000000 --- a/arch/i386/lib/board.c +++ /dev/null @@ -1,480 +0,0 @@ -/* - * (C) Copyright 2008-2011 - * Graeme Russ, <graeme.russ@gmail.com> - * - * (C) Copyright 2002 - * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se> - * - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * 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 <watchdog.h> -#include <command.h> -#include <stdio_dev.h> -#include <timestamp.h> -#include <version.h> -#include <malloc.h> -#include <net.h> -#include <ide.h> -#include <serial.h> -#include <asm/u-boot-i386.h> -#include <elf.h> - -#ifdef CONFIG_BITBANGMII -#include <miiphy.h> -#endif - -/* - * Pointer to initial global data area - * - * Here we initialize it. - */ -#undef XTRN_DECLARE_GLOBAL_DATA_PTR -#define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ -DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); - - -/* Exports from the Linker Script */ -extern ulong __text_start; -extern ulong __data_end; -extern ulong __rel_dyn_start; -extern ulong __rel_dyn_end; -extern ulong __bss_start; -extern ulong __bss_end; - -const char version_string[] = - U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"; - -/************************************************************************ - * Init Utilities * - ************************************************************************ - * Some of this code should be moved into the core functions, - * or dropped completely, - * but let's get it working (again) first... - */ -static int init_baudrate (void) -{ - char tmp[64]; /* long enough for environment variables */ - int i = getenv_f("baudrate", tmp, 64); - - gd->baudrate = (i != 0) - ? (int) simple_strtoul (tmp, NULL, 10) - : CONFIG_BAUDRATE; - - return (0); -} - -static int display_banner (void) -{ - - printf ("\n\n%s\n\n", version_string); -/* - printf ("U-Boot code: %08lX -> %08lX data: %08lX -> %08lX\n" - " BSS: %08lX -> %08lX stack: %08lX -> %08lX\n", - i386boot_start, i386boot_romdata_start-1, - i386boot_romdata_dest, i386boot_romdata_dest+i386boot_romdata_size-1, - i386boot_bss_start, i386boot_bss_start+i386boot_bss_size-1, - i386boot_bss_start+i386boot_bss_size, - i386boot_bss_start+i386boot_bss_size+CONFIG_SYS_STACK_SIZE-1); - -*/ - - return (0); -} - -static int display_dram_config (void) -{ - int i; - - puts ("DRAM Configuration:\n"); - - for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) { - printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); - print_size (gd->bd->bi_dram[i].size, "\n"); - } - - return (0); -} - -static void display_flash_config (ulong size) -{ - puts ("Flash: "); - print_size (size, "\n"); -} - -/* - * Breath some life into the board... - * - * Initialize an SMC for serial comms, and carry out some hardware - * tests. - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependend #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ -typedef int (init_fnc_t) (void); - -static int calculate_relocation_address(void); -static int copy_uboot_to_ram(void); -static int clear_bss(void); -static int do_elf_reloc_fixups(void); - -init_fnc_t *init_sequence_f[] = { - cpu_init_f, - board_early_init_f, - env_init, - init_baudrate, - serial_init, - console_init_f, - dram_init_f, - calculate_relocation_address, - copy_uboot_to_ram, - clear_bss, - do_elf_reloc_fixups, - - NULL, -}; - -init_fnc_t *init_sequence_r[] = { - cpu_init_r, /* basic cpu dependent setup */ - board_early_init_r, /* basic board dependent setup */ - dram_init, /* configure available RAM banks */ - interrupt_init, /* set up exceptions */ - timer_init, - display_banner, - display_dram_config, - - NULL, -}; - -gd_t *gd; - -static int calculate_relocation_address(void) -{ - void *text_start = &__text_start; - void *bss_end = &__bss_end; - void *dest_addr; - ulong rel_offset; - - /* Calculate destination RAM Address and relocation offset */ - dest_addr = (void *)gd->ram_size; - dest_addr -= CONFIG_SYS_STACK_SIZE; - dest_addr -= (bss_end - text_start); - rel_offset = dest_addr - text_start; - - gd->start_addr_sp = gd->ram_size; - gd->relocaddr = (ulong)dest_addr; - gd->reloc_off = rel_offset; - - return 0; -} - -static int copy_uboot_to_ram(void) -{ - ulong *dst_addr = (ulong *)gd->relocaddr; - ulong *src_addr = (ulong *)&__text_start; - ulong *end_addr = (ulong *)&__data_end; - - while (src_addr < end_addr) - *dst_addr++ = *src_addr++; - - return 0; -} - -static int clear_bss(void) -{ - void *bss_start = &__bss_start; - void *bss_end = &__bss_end; - - ulong *dst_addr = (ulong *)(bss_start + gd->reloc_off); - ulong *end_addr = (ulong *)(bss_end + gd->reloc_off);; - - while (dst_addr < end_addr) - *dst_addr++ = 0x00000000; - - return 0; -} - -static int do_elf_reloc_fixups(void) -{ - Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start); - Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end); - - do { - if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE) - if (*(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) >= CONFIG_SYS_TEXT_BASE) - *(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) += gd->reloc_off; - } while (re_src++ < re_end); - - return 0; -} - -/* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */ -void board_init_f(ulong boot_flags) -{ - init_fnc_t **init_fnc_ptr; - - gd->flags = boot_flags; - - for (init_fnc_ptr = init_sequence_f; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) - hang(); - } - - gd->flags |= GD_FLG_RELOC; - - /* Enter the relocated U-Boot! */ - relocate_code(gd->start_addr_sp, gd, gd->relocaddr); - - /* NOTREACHED - relocate_code() does not return */ - while(1); -} - -void board_init_r(gd_t *id, ulong dest_addr) -{ - char *s; - ulong size; - static bd_t bd_data; - static gd_t gd_data; - init_fnc_t **init_fnc_ptr; - - show_boot_progress(0x21); - - /* Global data pointer is now writable */ - gd = &gd_data; - memcpy(gd, id, sizeof(gd_t)); - - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - gd->bd = &bd_data; - memset (gd->bd, 0, sizeof (bd_t)); - show_boot_progress(0x22); - - gd->baudrate = CONFIG_BAUDRATE; - - mem_malloc_init((((ulong)dest_addr - CONFIG_SYS_MALLOC_LEN)+3)&~3, - CONFIG_SYS_MALLOC_LEN); - - for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) { - if ((*init_fnc_ptr)() != 0) - hang (); - } - show_boot_progress(0x23); - -#ifdef CONFIG_SERIAL_MULTI - serial_initialize(); -#endif - /* configure available FLASH banks */ - size = flash_init(); - display_flash_config(size); - show_boot_progress(0x24); - - show_boot_progress(0x25); - - /* initialize environment */ - env_relocate (); - show_boot_progress(0x26); - - -#ifdef CONFIG_CMD_NET - /* IP Address */ - bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr"); -#endif - -#if defined(CONFIG_PCI) - /* - * Do pci configuration - */ - pci_init(); -#endif - - show_boot_progress(0x27); - - - stdio_init (); - - jumptable_init (); - - /* Initialize the console (after the relocation and devices init) */ - console_init_r(); - -#ifdef CONFIG_MISC_INIT_R - /* miscellaneous platform dependent initialisations */ - misc_init_r(); -#endif - -#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE) - WATCHDOG_RESET(); - puts ("PCMCIA:"); - pcmcia_init(); -#endif - -#if defined(CONFIG_CMD_KGDB) - WATCHDOG_RESET(); - puts("KGDB: "); - kgdb_init(); -#endif - - /* enable exceptions */ - enable_interrupts(); - show_boot_progress(0x28); - -#ifdef CONFIG_STATUS_LED - status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); -#endif - - udelay(20); - - set_timer (0); - - /* Initialize from environment */ - if ((s = getenv ("loadaddr")) != NULL) { - load_addr = simple_strtoul (s, NULL, 16); - } -#if defined(CONFIG_CMD_NET) - if ((s = getenv ("bootfile")) != NULL) { - copy_filename (BootFile, s, sizeof (BootFile)); - } -#endif - - WATCHDOG_RESET(); - -#if defined(CONFIG_CMD_IDE) - WATCHDOG_RESET(); - puts("IDE: "); - ide_init(); -#endif - -#if defined(CONFIG_CMD_SCSI) - WATCHDOG_RESET(); - puts("SCSI: "); - scsi_init(); -#endif - -#if defined(CONFIG_CMD_DOC) - WATCHDOG_RESET(); - puts("DOC: "); - doc_init(); -#endif - -#ifdef CONFIG_BITBANGMII - bb_miiphy_init(); -#endif -#if defined(CONFIG_CMD_NET) -#if defined(CONFIG_NET_MULTI) - WATCHDOG_RESET(); - puts("Net: "); -#endif - eth_initialize(gd->bd); -#endif - -#if ( defined(CONFIG_CMD_NET)) && (0) - WATCHDOG_RESET(); -# ifdef DEBUG - puts ("Reset Ethernet PHY\n"); -# endif - reset_phy(); -#endif - -#ifdef CONFIG_LAST_STAGE_INIT - WATCHDOG_RESET(); - /* - * Some parts can be only initialized if all others (like - * Interrupts) are up and running (i.e. the PC-style ISA - * keyboard). - */ - last_stage_init(); -#endif - - -#ifdef CONFIG_POST - post_run (NULL, POST_RAM | post_bootmode_get(0)); -#endif - - - show_boot_progress(0x29); - - /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) { - main_loop(); - } - - /* NOTREACHED - no way out of command loop except booting */ -} - -void hang (void) -{ - puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); -} - -unsigned long do_go_exec (ulong (*entry)(int, char * const []), int argc, char * const argv[]) -{ - unsigned long ret = 0; - char **argv_tmp; - - /* - * x86 does not use a dedicated register to pass the pointer to - * the global_data, so it is instead passed as argv[-1]. By using - * argv[-1], the called 'Application' can use the contents of - * argv natively. However, to safely use argv[-1] a new copy of - * argv is needed with the extra element - */ - argv_tmp = malloc(sizeof(char *) * (argc + 1)); - - if (argv_tmp) { - argv_tmp[0] = (char *)gd; - - memcpy(&argv_tmp[1], argv, (size_t)(sizeof(char *) * argc)); - - ret = (entry) (argc, &argv_tmp[1]); - free(argv_tmp); - } - - return ret; -} - -void setup_pcat_compatibility(void) - __attribute__((weak, alias("__setup_pcat_compatibility"))); - -void __setup_pcat_compatibility(void) -{ -} |