diff options
Diffstat (limited to 'lib_nios/board.c')
| -rw-r--r-- | lib_nios/board.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/lib_nios/board.c b/lib_nios/board.c deleted file mode 100644 index 5d2fb2e..0000000 --- a/lib_nios/board.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * (C) Copyright 2003, Psyent Corporation <www.psyent.com> - * Scott McNutt <smcnutt@psyent.com> - * - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <stdio_dev.h> -#include <watchdog.h> -#include <malloc.h> -#include <net.h> -#ifdef CONFIG_STATUS_LED -#include <status_led.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -/* - * 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); - - -/************************************************************************ - * Initialization sequence * - ***********************************************************************/ - -init_fnc_t *init_sequence[] = { - -#if defined(CONFIG_BOARD_EARLY_INIT_F) - board_early_init_f, /* Call board-specific init code early.*/ -#endif - - env_init, - serial_init, - console_init_f, - display_options, - checkcpu, - checkboard, - NULL, /* Terminate this list */ -}; - - -/***********************************************************************/ -void board_init (void) -{ - bd_t *bd; - init_fnc_t **init_fnc_ptr; - char *s, *e; - int i; - - /* Pointer is writable since we allocated a register for it. - * Nios treats CONFIG_SYS_GBL_DATA_OFFSET as an address. - */ - gd = (gd_t *)CONFIG_SYS_GBL_DATA_OFFSET; - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - memset( gd, 0, CONFIG_SYS_GBL_DATA_SIZE ); - - 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 = CONFIG_SYS_SDRAM_BASE; - bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE; - bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; -#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE) - bd->bi_sramstart= CONFIG_SYS_SRAM_BASE; - bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE; -#endif - bd->bi_baudrate = CONFIG_BAUDRATE; - - for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { - WATCHDOG_RESET (); - if ((*init_fnc_ptr) () != 0) { - hang (); - } - } - - WATCHDOG_RESET (); - - /* The Malloc area is immediately below the monitor copy in RAM */ - mem_malloc_init(CONFIG_SYS_MALLOC_BASE, CONFIG_SYS_MALLOC_LEN); - - WATCHDOG_RESET (); - bd->bi_flashsize = flash_init(); - - WATCHDOG_RESET (); - env_relocate(); - - bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); - - WATCHDOG_RESET (); - stdio_init(); - jumptable_init(); - console_init_r(); - /* - */ - - WATCHDOG_RESET (); - interrupt_init (); - -#ifdef CONFIG_STATUS_LED - status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); -#endif - - /* main_loop */ - for (;;) { - WATCHDOG_RESET (); - main_loop (); - } -} - - -/***********************************************************************/ - -void hang (void) -{ -#ifdef CONFIG_STATUS_LED - status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF); - status_led_set(STATUS_LED_RED, STATUS_LED_BLINKING); -#endif - puts("### ERROR ### Please reset board ###\n"); - for (;;); -} - -unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[]) -{ - /* - * x86 does not use a dedicated register to pass the pointer - * to the global_data - */ - argv[-1] = (char *)gd; - return entry (argc, argv); -} |