upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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811 lines
19 KiB
811 lines
19 KiB
/*
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* (C) Copyright 2003
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* Josef Baumgartner <josef.baumgartner@telex.de>
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*
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* (C) Copyright 2000-2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <watchdog.h>
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#include <command.h>
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#include <malloc.h>
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#include <devices.h>
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#include <asm/immap.h>
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#if defined(CONFIG_CMD_IDE)
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#include <ide.h>
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#endif
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#if defined(CONFIG_CMD_SCSI)
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#include <scsi.h>
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#endif
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#if defined(CONFIG_CMD_KGDB)
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#include <kgdb.h>
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#endif
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#ifdef CONFIG_STATUS_LED
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#include <status_led.h>
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#endif
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#include <net.h>
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#include <serial.h>
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#if defined(CONFIG_CMD_BEDBUG)
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#include <cmd_bedbug.h>
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#endif
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#ifdef CONFIG_SYS_ALLOC_DPRAM
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#include <commproc.h>
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#endif
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#include <version.h>
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#if defined(CONFIG_HARD_I2C) || \
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defined(CONFIG_SOFT_I2C)
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#include <i2c.h>
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#endif
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#ifdef CONFIG_CMD_SPI
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#include <spi.h>
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#endif
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#include <nand.h>
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DECLARE_GLOBAL_DATA_PTR;
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static char *failed = "*** failed ***\n";
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#ifdef CONFIG_PCU_E
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extern flash_info_t flash_info[];
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#endif
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#include <environment.h>
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#if ( ((CONFIG_ENV_ADDR+CONFIG_ENV_SIZE) < CONFIG_SYS_MONITOR_BASE) || \
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(CONFIG_ENV_ADDR >= (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN)) ) || \
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defined(CONFIG_ENV_IS_IN_NVRAM)
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#define TOTAL_MALLOC_LEN (CONFIG_SYS_MALLOC_LEN + CONFIG_ENV_SIZE)
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#else
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#define TOTAL_MALLOC_LEN CONFIG_SYS_MALLOC_LEN
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#endif
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extern ulong __init_end;
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extern ulong _end;
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extern void timer_init(void);
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#if defined(CONFIG_WATCHDOG)
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# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
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# define WATCHDOG_DISABLE watchdog_disable
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extern int watchdog_init(void);
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extern int watchdog_disable(void);
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#else
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# define INIT_FUNC_WATCHDOG_INIT /* undef */
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# define WATCHDOG_DISABLE /* undef */
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#endif /* CONFIG_WATCHDOG */
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ulong monitor_flash_len;
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/*
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* Begin and End of memory area for malloc(), and current "brk"
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*/
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static ulong mem_malloc_start = 0;
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static ulong mem_malloc_end = 0;
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static ulong mem_malloc_brk = 0;
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/************************************************************************
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* Utilities *
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************************************************************************
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*/
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/*
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* The Malloc area is immediately below the monitor copy in DRAM
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*/
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static void mem_malloc_init (void)
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{
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ulong dest_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
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mem_malloc_end = dest_addr;
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mem_malloc_start = dest_addr - TOTAL_MALLOC_LEN;
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mem_malloc_brk = mem_malloc_start;
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memset ((void *) mem_malloc_start,
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0,
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mem_malloc_end - mem_malloc_start);
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}
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void *sbrk (ptrdiff_t increment)
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{
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ulong old = mem_malloc_brk;
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ulong new = old + increment;
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if ((new < mem_malloc_start) ||
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(new > mem_malloc_end) ) {
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return (NULL);
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}
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mem_malloc_brk = new;
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return ((void *)old);
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}
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/*
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* All attempts to come up with a "common" initialization sequence
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* that works for all boards and architectures failed: some of the
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* requirements are just _too_ different. To get rid of the resulting
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* mess of board dependend #ifdef'ed code we now make the whole
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* initialization sequence configurable to the user.
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*
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* The requirements for any new initalization function is simple: it
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* receives a pointer to the "global data" structure as it's only
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* argument, and returns an integer return code, where 0 means
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* "continue" and != 0 means "fatal error, hang the system".
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*/
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typedef int (init_fnc_t) (void);
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/************************************************************************
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* Init Utilities
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************************************************************************
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* Some of this code should be moved into the core functions,
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* but let's get it working (again) first...
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*/
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static int init_baudrate (void)
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{
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char tmp[64]; /* long enough for environment variables */
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int i = getenv_r ("baudrate", tmp, sizeof (tmp));
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gd->baudrate = (i > 0)
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? (int) simple_strtoul (tmp, NULL, 10)
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: CONFIG_BAUDRATE;
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return (0);
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}
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/***********************************************************************/
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static int init_func_ram (void)
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{
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int board_type = 0; /* use dummy arg */
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puts ("DRAM: ");
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if ((gd->ram_size = initdram (board_type)) > 0) {
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print_size (gd->ram_size, "\n");
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return (0);
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}
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puts (failed);
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return (1);
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}
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/***********************************************************************/
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#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
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static int init_func_i2c (void)
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{
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puts ("I2C: ");
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i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
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puts ("ready\n");
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return (0);
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}
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#endif
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#if defined(CONFIG_HARD_SPI)
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static int init_func_spi (void)
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{
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puts ("SPI: ");
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spi_init ();
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puts ("ready\n");
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return (0);
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}
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#endif
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/***********************************************************************/
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/************************************************************************
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* Initialization sequence *
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************************************************************************
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*/
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init_fnc_t *init_sequence[] = {
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get_clocks,
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env_init,
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init_baudrate,
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serial_init,
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console_init_f,
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display_options,
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checkcpu,
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checkboard,
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#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
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init_func_i2c,
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#endif
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#if defined(CONFIG_HARD_SPI)
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init_func_spi,
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#endif
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init_func_ram,
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#if defined(CONFIG_SYS_DRAM_TEST)
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testdram,
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#endif /* CONFIG_SYS_DRAM_TEST */
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INIT_FUNC_WATCHDOG_INIT
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NULL, /* Terminate this list */
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};
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/************************************************************************
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*
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* This is the first part of the initialization sequence that is
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* implemented in C, but still running from ROM.
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*
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* The main purpose is to provide a (serial) console interface as
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* soon as possible (so we can see any error messages), and to
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* initialize the RAM so that we can relocate the monitor code to
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* RAM.
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*
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* Be aware of the restrictions: global data is read-only, BSS is not
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* initialized, and stack space is limited to a few kB.
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*
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************************************************************************
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*/
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void
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board_init_f (ulong bootflag)
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{
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bd_t *bd;
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ulong len, addr, addr_sp;
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ulong *paddr;
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gd_t *id;
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init_fnc_t **init_fnc_ptr;
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#ifdef CONFIG_PRAM
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int i;
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ulong reg;
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char tmp[64]; /* long enough for environment variables */
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#endif
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/* Pointer is writable since we allocated a register for it */
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gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
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/* compiler optimization barrier needed for GCC >= 3.4 */
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__asm__ __volatile__("": : :"memory");
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/* Clear initial global data */
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memset ((void *) gd, 0, sizeof (gd_t));
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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if ((*init_fnc_ptr)() != 0) {
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hang ();
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}
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}
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/*
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* Now that we have DRAM mapped and working, we can
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* relocate the code and continue running from DRAM.
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*
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* Reserve memory at end of RAM for (top down in that order):
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* - protected RAM
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* - LCD framebuffer
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* - monitor code
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* - board info struct
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*/
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len = (ulong)&_end - CONFIG_SYS_MONITOR_BASE;
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addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
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#ifdef CONFIG_LOGBUFFER
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/* reserve kernel log buffer */
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addr -= (LOGBUFF_RESERVE);
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debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
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#endif
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#ifdef CONFIG_PRAM
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/*
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* reserve protected RAM
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*/
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i = getenv_r ("pram", tmp, sizeof (tmp));
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reg = (i > 0) ? simple_strtoul (tmp, NULL, 10) : CONFIG_PRAM;
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addr -= (reg << 10); /* size is in kB */
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debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
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#endif /* CONFIG_PRAM */
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/* round down to next 4 kB limit */
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addr &= ~(4096 - 1);
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debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
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#ifdef CONFIG_LCD
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/* reserve memory for LCD display (always full pages) */
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addr = lcd_setmem (addr);
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gd->fb_base = addr;
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#endif /* CONFIG_LCD */
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/*
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* reserve memory for U-Boot code, data & bss
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* round down to next 4 kB limit
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*/
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addr -= len;
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addr &= ~(4096 - 1);
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debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
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/*
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* reserve memory for malloc() arena
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*/
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addr_sp = addr - TOTAL_MALLOC_LEN;
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debug ("Reserving %dk for malloc() at: %08lx\n",
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TOTAL_MALLOC_LEN >> 10, addr_sp);
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/*
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* (permanently) allocate a Board Info struct
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* and a permanent copy of the "global" data
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*/
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addr_sp -= sizeof (bd_t);
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bd = (bd_t *) addr_sp;
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gd->bd = bd;
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debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
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sizeof (bd_t), addr_sp);
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addr_sp -= sizeof (gd_t);
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id = (gd_t *) addr_sp;
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debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
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sizeof (gd_t), addr_sp);
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/* Reserve memory for boot params. */
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addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
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bd->bi_boot_params = addr_sp;
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debug ("Reserving %dk for boot parameters at: %08lx\n",
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CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
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/*
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* Finally, we set up a new (bigger) stack.
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*
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* Leave some safety gap for SP, force alignment on 16 byte boundary
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* Clear initial stack frame
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*/
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addr_sp -= 16;
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addr_sp &= ~0xF;
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paddr = (ulong *)addr_sp;
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*paddr-- = 0;
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*paddr-- = 0;
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addr_sp = (ulong)paddr;
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debug ("Stack Pointer at: %08lx\n", addr_sp);
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/*
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* Save local variables to board info struct
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*/
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bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
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bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
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#ifdef CONFIG_SYS_INIT_RAM_ADDR
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bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */
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bd->bi_sramsize = CONFIG_SYS_INIT_RAM_END; /* size of SRAM memory */
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#endif
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bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
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bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
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WATCHDOG_RESET ();
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bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
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bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
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#ifdef CONFIG_PCI
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bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
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#endif
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#ifdef CONFIG_EXTRA_CLOCK
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bd->bi_inpfreq = gd->inp_clk; /* input Freq in Hz */
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bd->bi_vcofreq = gd->vco_clk; /* vco Freq in Hz */
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bd->bi_flbfreq = gd->flb_clk; /* flexbus Freq in Hz */
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#endif
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bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
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#ifdef CONFIG_SYS_EXTBDINFO
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strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
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strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
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#endif
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WATCHDOG_RESET ();
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|
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#ifdef CONFIG_POST
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post_bootmode_init();
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post_run (NULL, POST_ROM | post_bootmode_get(0));
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#endif
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WATCHDOG_RESET();
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memcpy (id, (void *)gd, sizeof (gd_t));
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|
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debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr);
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relocate_code (addr_sp, id, addr);
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|
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/* NOTREACHED - jump_to_ram() does not return */
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}
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|
|
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/************************************************************************
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|
*
|
|
* This is the next part if the initialization sequence: we are now
|
|
* running from RAM and have a "normal" C environment, i. e. global
|
|
* data can be written, BSS has been cleared, the stack size in not
|
|
* that critical any more, etc.
|
|
*
|
|
************************************************************************
|
|
*/
|
|
void board_init_r (gd_t *id, ulong dest_addr)
|
|
{
|
|
cmd_tbl_t *cmdtp;
|
|
char *s, *e;
|
|
bd_t *bd;
|
|
int i;
|
|
extern void malloc_bin_reloc (void);
|
|
|
|
#ifndef CONFIG_ENV_IS_NOWHERE
|
|
extern char * env_name_spec;
|
|
#endif
|
|
#ifndef CONFIG_SYS_NO_FLASH
|
|
ulong flash_size;
|
|
#endif
|
|
gd = id; /* initialize RAM version of global data */
|
|
bd = gd->bd;
|
|
|
|
gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
|
|
|
|
#ifdef CONFIG_SERIAL_MULTI
|
|
serial_initialize();
|
|
#endif
|
|
|
|
debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
|
|
|
|
monitor_flash_len = (ulong)&__init_end - dest_addr;
|
|
|
|
/*
|
|
* We have to relocate the command table manually
|
|
*/
|
|
for (cmdtp = &__u_boot_cmd_start; cmdtp != &__u_boot_cmd_end; cmdtp++) {
|
|
ulong addr;
|
|
addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
|
|
#if 0
|
|
printf ("Command \"%s\": 0x%08lx => 0x%08lx\n",
|
|
cmdtp->name, (ulong) (cmdtp->cmd), addr);
|
|
#endif
|
|
cmdtp->cmd =
|
|
(int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
|
|
|
|
addr = (ulong)(cmdtp->name) + gd->reloc_off;
|
|
cmdtp->name = (char *)addr;
|
|
|
|
if (cmdtp->usage) {
|
|
addr = (ulong)(cmdtp->usage) + gd->reloc_off;
|
|
cmdtp->usage = (char *)addr;
|
|
}
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
if (cmdtp->help) {
|
|
addr = (ulong)(cmdtp->help) + gd->reloc_off;
|
|
cmdtp->help = (char *)addr;
|
|
}
|
|
#endif
|
|
}
|
|
/* there are some other pointer constants we must deal with */
|
|
#ifndef CONFIG_ENV_IS_NOWHERE
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|
env_name_spec += gd->reloc_off;
|
|
#endif
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
#ifdef CONFIG_LOGBUFFER
|
|
logbuff_init_ptrs ();
|
|
#endif
|
|
#ifdef CONFIG_POST
|
|
post_output_backlog ();
|
|
post_reloc ();
|
|
#endif
|
|
WATCHDOG_RESET();
|
|
|
|
#if 0
|
|
/* instruction cache enabled in cpu_init_f() for faster relocation */
|
|
icache_enable (); /* it's time to enable the instruction cache */
|
|
#endif
|
|
|
|
/*
|
|
* Setup trap handlers
|
|
*/
|
|
trap_init (CONFIG_SYS_SDRAM_BASE);
|
|
|
|
#if !defined(CONFIG_SYS_NO_FLASH)
|
|
puts ("FLASH: ");
|
|
|
|
if ((flash_size = flash_init ()) > 0) {
|
|
# ifdef CONFIG_SYS_FLASH_CHECKSUM
|
|
print_size (flash_size, "");
|
|
/*
|
|
* Compute and print flash CRC if flashchecksum is set to 'y'
|
|
*
|
|
* NOTE: Maybe we should add some WATCHDOG_RESET()? XXX
|
|
*/
|
|
s = getenv ("flashchecksum");
|
|
if (s && (*s == 'y')) {
|
|
printf (" CRC: %08lX",
|
|
crc32 (0,
|
|
(const unsigned char *) CONFIG_SYS_FLASH_BASE,
|
|
flash_size)
|
|
);
|
|
}
|
|
putc ('\n');
|
|
# else /* !CONFIG_SYS_FLASH_CHECKSUM */
|
|
print_size (flash_size, "\n");
|
|
# endif /* CONFIG_SYS_FLASH_CHECKSUM */
|
|
} else {
|
|
puts (failed);
|
|
hang ();
|
|
}
|
|
|
|
bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; /* update start of FLASH memory */
|
|
bd->bi_flashsize = flash_size; /* size of FLASH memory (final value) */
|
|
bd->bi_flashoffset = 0;
|
|
#else /* CONFIG_SYS_NO_FLASH */
|
|
bd->bi_flashsize = 0;
|
|
bd->bi_flashstart = 0;
|
|
bd->bi_flashoffset = 0;
|
|
#endif /* !CONFIG_SYS_NO_FLASH */
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
/* initialize higher level parts of CPU like time base and timers */
|
|
cpu_init_r ();
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
/* initialize malloc() area */
|
|
mem_malloc_init ();
|
|
malloc_bin_reloc ();
|
|
|
|
#ifdef CONFIG_SPI
|
|
# if !defined(CONFIG_ENV_IS_IN_EEPROM)
|
|
spi_init_f ();
|
|
# endif
|
|
spi_init_r ();
|
|
#endif
|
|
|
|
/* relocate environment function pointers etc. */
|
|
env_relocate ();
|
|
|
|
/*
|
|
* Fill in missing fields of bd_info.
|
|
* We do this here, where we have "normal" access to the
|
|
* environment; we used to do this still running from ROM,
|
|
* where had to use getenv_r(), which can be pretty slow when
|
|
* the environment is in EEPROM.
|
|
*/
|
|
s = getenv ("ethaddr");
|
|
for (i = 0; i < 6; ++i) {
|
|
bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
|
|
if (s)
|
|
s = (*e) ? e + 1 : e;
|
|
}
|
|
#ifdef CONFIG_HAS_ETH1
|
|
/* handle the 2nd ethernet address */
|
|
|
|
s = getenv ("eth1addr");
|
|
for (i = 0; i < 6; ++i) {
|
|
bd->bi_enet1addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
|
|
if (s)
|
|
s = (*e) ? e + 1 : e;
|
|
}
|
|
#endif
|
|
#ifdef CONFIG_HAS_ETH2
|
|
/* handle the 3rd ethernet address */
|
|
|
|
s = getenv ("eth2addr");
|
|
for (i = 0; i < 6; ++i) {
|
|
bd->bi_enet2addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
|
|
if (s)
|
|
s = (*e) ? e + 1 : e;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAS_ETH3
|
|
/* handle 4th ethernet address */
|
|
s = getenv("eth3addr");
|
|
for (i = 0; i < 6; ++i) {
|
|
bd->bi_enet3addr[i] = s ? simple_strtoul (s, &e, 16) : 0;
|
|
if (s)
|
|
s = (*e) ? e + 1 : e;
|
|
}
|
|
#endif
|
|
|
|
/* IP Address */
|
|
bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
#if defined(CONFIG_PCI)
|
|
/*
|
|
* Do pci configuration
|
|
*/
|
|
pci_init ();
|
|
#endif
|
|
|
|
/** leave this here (after malloc(), environment and PCI are working) **/
|
|
/* Initialize devices */
|
|
devices_init ();
|
|
|
|
/* Initialize the jump table for applications */
|
|
jumptable_init ();
|
|
|
|
/* Initialize the console (after the relocation and devices init) */
|
|
console_init_r ();
|
|
|
|
#if defined(CONFIG_MISC_INIT_R)
|
|
/* miscellaneous platform dependent initialisations */
|
|
misc_init_r ();
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
WATCHDOG_RESET ();
|
|
puts ("KGDB: ");
|
|
kgdb_init ();
|
|
#endif
|
|
|
|
debug ("U-Boot relocated to %08lx\n", dest_addr);
|
|
|
|
/*
|
|
* Enable Interrupts
|
|
*/
|
|
interrupt_init ();
|
|
|
|
/* Must happen after interrupts are initialized since
|
|
* an irq handler gets installed
|
|
*/
|
|
timer_init();
|
|
|
|
#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
|
|
serial_buffered_init();
|
|
#endif
|
|
|
|
#ifdef CONFIG_STATUS_LED
|
|
status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
|
|
#endif
|
|
|
|
udelay (20);
|
|
|
|
set_timer (0);
|
|
|
|
/* Insert function pointers now that we have relocated the code */
|
|
|
|
/* 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_DOC)
|
|
WATCHDOG_RESET ();
|
|
puts ("DOC: ");
|
|
doc_init ();
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_NAND)
|
|
WATCHDOG_RESET ();
|
|
puts ("NAND: ");
|
|
nand_init(); /* go init the NAND */
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_NET)
|
|
WATCHDOG_RESET();
|
|
#if defined(FEC_ENET)
|
|
eth_init(bd);
|
|
#endif
|
|
#if defined(CONFIG_NET_MULTI)
|
|
puts ("Net: ");
|
|
eth_initialize (bd);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef CONFIG_POST
|
|
post_run (NULL, POST_RAM | post_bootmode_get(0));
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_PCMCIA) \
|
|
&& !defined(CONFIG_CMD_IDE)
|
|
WATCHDOG_RESET ();
|
|
puts ("PCMCIA:");
|
|
pcmcia_init ();
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_IDE)
|
|
WATCHDOG_RESET ();
|
|
puts ("IDE: ");
|
|
ide_init ();
|
|
#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
|
|
|
|
#if defined(CONFIG_CMD_BEDBUG)
|
|
WATCHDOG_RESET ();
|
|
bedbug_init ();
|
|
#endif
|
|
|
|
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
|
|
/*
|
|
* Export available size of memory for Linux,
|
|
* taking into account the protected RAM at top of memory
|
|
*/
|
|
{
|
|
ulong pram;
|
|
char memsz[32];
|
|
#ifdef CONFIG_PRAM
|
|
char *s;
|
|
|
|
if ((s = getenv ("pram")) != NULL) {
|
|
pram = simple_strtoul (s, NULL, 10);
|
|
} else {
|
|
pram = CONFIG_PRAM;
|
|
}
|
|
#else
|
|
pram=0;
|
|
#endif
|
|
#ifdef CONFIG_LOGBUFFER
|
|
/* Also take the logbuffer into account (pram is in kB) */
|
|
pram += (LOGBUFF_LEN+LOGBUFF_OVERHEAD)/1024;
|
|
#endif
|
|
sprintf (memsz, "%ldk", (bd->bi_memsize / 1024) - pram);
|
|
setenv ("mem", memsz);
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_MODEM_SUPPORT
|
|
{
|
|
extern int do_mdm_init;
|
|
do_mdm_init = gd->do_mdm_init;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_WATCHDOG
|
|
/* disable watchdog if environment is set */
|
|
if ((s = getenv ("watchdog")) != NULL) {
|
|
if (strncmp (s, "off", 3) == 0) {
|
|
WATCHDOG_DISABLE ();
|
|
}
|
|
}
|
|
#endif /* CONFIG_WATCHDOG*/
|
|
|
|
|
|
/* Initialization complete - start the monitor */
|
|
|
|
/* main_loop() can return to retry autoboot, if so just run it again. */
|
|
for (;;) {
|
|
WATCHDOG_RESET ();
|
|
main_loop ();
|
|
}
|
|
|
|
/* NOTREACHED - no way out of command loop except booting */
|
|
}
|
|
|
|
|
|
void hang(void)
|
|
{
|
|
puts ("### ERROR ### Please RESET the board ###\n");
|
|
for (;;);
|
|
}
|
|
|