mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-17 23:48:52 +09:00
![Tom Rini](/assets/img/avatar_default.png)
The sandburst-specific i2c drivers have been deleted, conflict was just over the SPDX conversion. Conflicts: board/sandburst/common/ppc440gx_i2c.c board/sandburst/common/ppc440gx_i2c.h Signed-off-by: Tom Rini <trini@ti.com>
659 lines
15 KiB
C
659 lines
15 KiB
C
/*
|
|
* (C) Copyright 2003
|
|
* Josef Baumgartner <josef.baumgartner@telex.de>
|
|
*
|
|
* (C) Copyright 2000-2002
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <stdio_dev.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#include <asm/immap.h>
|
|
|
|
#if defined(CONFIG_CMD_IDE)
|
|
#include <ide.h>
|
|
#endif
|
|
#if defined(CONFIG_CMD_SCSI)
|
|
#include <scsi.h>
|
|
#endif
|
|
#if defined(CONFIG_CMD_KGDB)
|
|
#include <kgdb.h>
|
|
#endif
|
|
#ifdef CONFIG_STATUS_LED
|
|
#include <status_led.h>
|
|
#endif
|
|
#include <net.h>
|
|
#include <serial.h>
|
|
#if defined(CONFIG_CMD_BEDBUG)
|
|
#include <cmd_bedbug.h>
|
|
#endif
|
|
#ifdef CONFIG_SYS_ALLOC_DPRAM
|
|
#include <commproc.h>
|
|
#endif
|
|
#include <version.h>
|
|
|
|
#if defined(CONFIG_HARD_I2C) || \
|
|
defined(CONFIG_SYS_I2C)
|
|
#include <i2c.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_CMD_SPI
|
|
#include <spi.h>
|
|
#endif
|
|
|
|
#ifdef CONFIG_BITBANGMII
|
|
#include <miiphy.h>
|
|
#endif
|
|
|
|
#include <nand.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static char *failed = "*** failed ***\n";
|
|
|
|
#include <environment.h>
|
|
|
|
extern ulong __init_end;
|
|
extern ulong __bss_end;
|
|
|
|
#if defined(CONFIG_WATCHDOG)
|
|
# undef INIT_FUNC_WATCHDOG_INIT
|
|
# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
|
|
# define WATCHDOG_DISABLE watchdog_disable
|
|
|
|
extern int watchdog_init(void);
|
|
extern int watchdog_disable(void);
|
|
#else
|
|
# define INIT_FUNC_WATCHDOG_INIT /* undef */
|
|
# define WATCHDOG_DISABLE /* undef */
|
|
#endif /* CONFIG_WATCHDOG */
|
|
|
|
ulong monitor_flash_len;
|
|
|
|
/************************************************************************
|
|
* Utilities *
|
|
************************************************************************
|
|
*/
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/************************************************************************
|
|
* Init Utilities
|
|
************************************************************************
|
|
* Some of this code should be moved into the core functions,
|
|
* but let's get it working (again) first...
|
|
*/
|
|
|
|
static int init_baudrate (void)
|
|
{
|
|
gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************************/
|
|
|
|
static int init_func_ram (void)
|
|
{
|
|
int board_type = 0; /* use dummy arg */
|
|
puts ("DRAM: ");
|
|
|
|
if ((gd->ram_size = initdram (board_type)) > 0) {
|
|
print_size (gd->ram_size, "\n");
|
|
return (0);
|
|
}
|
|
puts (failed);
|
|
return (1);
|
|
}
|
|
|
|
/***********************************************************************/
|
|
|
|
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
|
|
static int init_func_i2c (void)
|
|
{
|
|
puts ("I2C: ");
|
|
#ifdef CONFIG_SYS_I2C
|
|
i2c_init_all();
|
|
#else
|
|
i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
|
|
#endif
|
|
puts ("ready\n");
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_HARD_SPI)
|
|
static int init_func_spi (void)
|
|
{
|
|
puts ("SPI: ");
|
|
spi_init ();
|
|
puts ("ready\n");
|
|
return (0);
|
|
}
|
|
#endif
|
|
|
|
/***********************************************************************/
|
|
|
|
/************************************************************************
|
|
* Initialization sequence *
|
|
************************************************************************
|
|
*/
|
|
|
|
init_fnc_t *init_sequence[] = {
|
|
get_clocks,
|
|
env_init,
|
|
init_baudrate,
|
|
serial_init,
|
|
console_init_f,
|
|
display_options,
|
|
checkcpu,
|
|
checkboard,
|
|
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SYS_I2C)
|
|
init_func_i2c,
|
|
#endif
|
|
#if defined(CONFIG_HARD_SPI)
|
|
init_func_spi,
|
|
#endif
|
|
init_func_ram,
|
|
#if defined(CONFIG_SYS_DRAM_TEST)
|
|
testdram,
|
|
#endif /* CONFIG_SYS_DRAM_TEST */
|
|
INIT_FUNC_WATCHDOG_INIT
|
|
NULL, /* Terminate this list */
|
|
};
|
|
|
|
|
|
/************************************************************************
|
|
*
|
|
* This is the first part of the initialization sequence that is
|
|
* implemented in C, but still running from ROM.
|
|
*
|
|
* The main purpose is to provide a (serial) console interface as
|
|
* soon as possible (so we can see any error messages), and to
|
|
* initialize the RAM so that we can relocate the monitor code to
|
|
* RAM.
|
|
*
|
|
* Be aware of the restrictions: global data is read-only, BSS is not
|
|
* initialized, and stack space is limited to a few kB.
|
|
*
|
|
************************************************************************
|
|
*/
|
|
|
|
void
|
|
board_init_f (ulong bootflag)
|
|
{
|
|
bd_t *bd;
|
|
ulong len, addr, addr_sp;
|
|
ulong *paddr;
|
|
gd_t *id;
|
|
init_fnc_t **init_fnc_ptr;
|
|
#ifdef CONFIG_PRAM
|
|
ulong reg;
|
|
#endif
|
|
|
|
/* Pointer is writable since we allocated a register for it */
|
|
gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
|
|
/* compiler optimization barrier needed for GCC >= 3.4 */
|
|
__asm__ __volatile__("": : :"memory");
|
|
|
|
/* Clear initial global data */
|
|
memset ((void *) gd, 0, sizeof (gd_t));
|
|
|
|
for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
|
|
if ((*init_fnc_ptr)() != 0) {
|
|
hang ();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now that we have DRAM mapped and working, we can
|
|
* relocate the code and continue running from DRAM.
|
|
*
|
|
* Reserve memory at end of RAM for (top down in that order):
|
|
* - protected RAM
|
|
* - LCD framebuffer
|
|
* - monitor code
|
|
* - board info struct
|
|
*/
|
|
len = (ulong)&__bss_end - CONFIG_SYS_MONITOR_BASE;
|
|
|
|
addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
|
|
|
|
#ifdef CONFIG_LOGBUFFER
|
|
/* reserve kernel log buffer */
|
|
addr -= (LOGBUFF_RESERVE);
|
|
debug ("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN, addr);
|
|
#endif
|
|
|
|
#ifdef CONFIG_PRAM
|
|
/*
|
|
* reserve protected RAM
|
|
*/
|
|
reg = getenv_ulong("pram", 10, CONFIG_PRAM);
|
|
addr -= (reg << 10); /* size is in kB */
|
|
debug ("Reserving %ldk for protected RAM at %08lx\n", reg, addr);
|
|
#endif /* CONFIG_PRAM */
|
|
|
|
/* round down to next 4 kB limit */
|
|
addr &= ~(4096 - 1);
|
|
debug ("Top of RAM usable for U-Boot at: %08lx\n", addr);
|
|
|
|
#ifdef CONFIG_LCD
|
|
#ifdef CONFIG_FB_ADDR
|
|
gd->fb_base = CONFIG_FB_ADDR;
|
|
#else
|
|
/* reserve memory for LCD display (always full pages) */
|
|
addr = lcd_setmem (addr);
|
|
gd->fb_base = addr;
|
|
#endif /* CONFIG_FB_ADDR */
|
|
#endif /* CONFIG_LCD */
|
|
|
|
/*
|
|
* reserve memory for U-Boot code, data & bss
|
|
* round down to next 4 kB limit
|
|
*/
|
|
addr -= len;
|
|
addr &= ~(4096 - 1);
|
|
|
|
debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr);
|
|
|
|
/*
|
|
* reserve memory for malloc() arena
|
|
*/
|
|
addr_sp = addr - TOTAL_MALLOC_LEN;
|
|
debug ("Reserving %dk for malloc() at: %08lx\n",
|
|
TOTAL_MALLOC_LEN >> 10, addr_sp);
|
|
|
|
/*
|
|
* (permanently) allocate a Board Info struct
|
|
* and a permanent copy of the "global" data
|
|
*/
|
|
addr_sp -= sizeof (bd_t);
|
|
bd = (bd_t *) addr_sp;
|
|
gd->bd = bd;
|
|
debug ("Reserving %zu Bytes for Board Info at: %08lx\n",
|
|
sizeof (bd_t), addr_sp);
|
|
addr_sp -= sizeof (gd_t);
|
|
id = (gd_t *) addr_sp;
|
|
debug ("Reserving %zu Bytes for Global Data at: %08lx\n",
|
|
sizeof (gd_t), addr_sp);
|
|
|
|
/* Reserve memory for boot params. */
|
|
addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN;
|
|
bd->bi_boot_params = addr_sp;
|
|
debug ("Reserving %dk for boot parameters at: %08lx\n",
|
|
CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp);
|
|
|
|
/*
|
|
* Finally, we set up a new (bigger) stack.
|
|
*
|
|
* Leave some safety gap for SP, force alignment on 16 byte boundary
|
|
* Clear initial stack frame
|
|
*/
|
|
addr_sp -= 16;
|
|
addr_sp &= ~0xF;
|
|
|
|
paddr = (ulong *)addr_sp;
|
|
*paddr-- = 0;
|
|
*paddr-- = 0;
|
|
addr_sp = (ulong)paddr;
|
|
|
|
debug ("Stack Pointer at: %08lx\n", addr_sp);
|
|
|
|
/*
|
|
* Save local variables to board info struct
|
|
*/
|
|
bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */
|
|
bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */
|
|
#ifdef CONFIG_SYS_INIT_RAM_ADDR
|
|
bd->bi_sramstart = CONFIG_SYS_INIT_RAM_ADDR; /* start of SRAM memory */
|
|
bd->bi_sramsize = CONFIG_SYS_INIT_RAM_SIZE; /* size of SRAM memory */
|
|
#endif
|
|
bd->bi_mbar_base = CONFIG_SYS_MBAR; /* base of internal registers */
|
|
|
|
bd->bi_bootflags = bootflag; /* boot / reboot flag (for LynxOS) */
|
|
|
|
WATCHDOG_RESET ();
|
|
bd->bi_intfreq = gd->cpu_clk; /* Internal Freq, in Hz */
|
|
bd->bi_busfreq = gd->bus_clk; /* Bus Freq, in Hz */
|
|
#ifdef CONFIG_PCI
|
|
bd->bi_pcifreq = gd->pci_clk; /* PCI Freq in Hz */
|
|
#endif
|
|
#ifdef CONFIG_EXTRA_CLOCK
|
|
bd->bi_inpfreq = gd->arch.inp_clk; /* input Freq in Hz */
|
|
bd->bi_vcofreq = gd->arch.vco_clk; /* vco Freq in Hz */
|
|
bd->bi_flbfreq = gd->arch.flb_clk; /* flexbus Freq in Hz */
|
|
#endif
|
|
bd->bi_baudrate = gd->baudrate; /* Console Baudrate */
|
|
|
|
#ifdef CONFIG_SYS_EXTBDINFO
|
|
strncpy (bd->bi_s_version, "1.2", sizeof (bd->bi_s_version));
|
|
strncpy (bd->bi_r_version, U_BOOT_VERSION, sizeof (bd->bi_r_version));
|
|
#endif
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
#ifdef CONFIG_POST
|
|
post_bootmode_init();
|
|
post_run (NULL, POST_ROM | post_bootmode_get(0));
|
|
#endif
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
memcpy (id, (void *)gd, sizeof (gd_t));
|
|
|
|
debug ("Start relocate of code from %08x to %08lx\n", CONFIG_SYS_MONITOR_BASE, addr);
|
|
relocate_code (addr_sp, id, addr);
|
|
|
|
/* NOTREACHED - jump_to_ram() does not return */
|
|
}
|
|
|
|
/************************************************************************
|
|
*
|
|
* 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)
|
|
{
|
|
char *s __maybe_unused;
|
|
bd_t *bd;
|
|
|
|
#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 */
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
gd->reloc_off = dest_addr - CONFIG_SYS_MONITOR_BASE;
|
|
|
|
serial_initialize();
|
|
|
|
debug("Now running in RAM - U-Boot at: %08lx\n", dest_addr);
|
|
|
|
monitor_flash_len = (ulong)&__init_end - dest_addr;
|
|
|
|
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
|
|
/*
|
|
* We have to relocate the command table manually
|
|
*/
|
|
fixup_cmdtable(ll_entry_start(cmd_tbl_t, cmd),
|
|
ll_entry_count(cmd_tbl_t, cmd));
|
|
#endif /* defined(CONFIG_NEEDS_MANUAL_RELOC) */
|
|
|
|
/* there are some other pointer constants we must deal with */
|
|
#ifndef CONFIG_ENV_IS_NOWHERE
|
|
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);
|
|
|
|
/* The Malloc area is immediately below the monitor copy in DRAM */
|
|
mem_malloc_init (CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
|
|
TOTAL_MALLOC_LEN, TOTAL_MALLOC_LEN);
|
|
|
|
#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
|
|
*/
|
|
if (getenv_yesno("flashchecksum") == 1) {
|
|
printf (" CRC: %08X",
|
|
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 ();
|
|
|
|
#ifdef CONFIG_SPI
|
|
# if !defined(CONFIG_ENV_IS_IN_EEPROM)
|
|
spi_init_f ();
|
|
# endif
|
|
spi_init_r ();
|
|
#endif
|
|
|
|
#if defined(CONFIG_SYS_I2C)
|
|
/* Adjust I2C subsystem pointers after relocation */
|
|
i2c_reloc_fixup();
|
|
#endif
|
|
|
|
/* relocate environment function pointers etc. */
|
|
env_relocate ();
|
|
|
|
WATCHDOG_RESET ();
|
|
|
|
#if defined(CONFIG_PCI)
|
|
/*
|
|
* Do pci configuration
|
|
*/
|
|
pci_init ();
|
|
#endif
|
|
|
|
/** leave this here (after malloc(), environment and PCI are working) **/
|
|
/* Initialize stdio devices */
|
|
stdio_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_STATUS_LED
|
|
status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
|
|
#endif
|
|
|
|
udelay (20);
|
|
|
|
/* Insert function pointers now that we have relocated the code */
|
|
|
|
/* Initialize from environment */
|
|
load_addr = getenv_ulong("loadaddr", 16, load_addr);
|
|
|
|
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
|
|
|
|
#ifdef CONFIG_BITBANGMII
|
|
bb_miiphy_init();
|
|
#endif
|
|
#if defined(CONFIG_CMD_NET)
|
|
WATCHDOG_RESET();
|
|
#if defined(FEC_ENET)
|
|
eth_init(bd);
|
|
#endif
|
|
puts ("Net: ");
|
|
eth_initialize (bd);
|
|
#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 = 0;
|
|
char memsz[32];
|
|
|
|
#ifdef CONFIG_PRAM
|
|
pram = getenv_ulong("pram", 10, CONFIG_PRAM);
|
|
#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 */
|
|
}
|