mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-23 01:18:57 +02:00
796a9d1091
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15242 3c298f89-4303-0410-b956-a3cf2f4a3e73
512 lines
14 KiB
Perl
Executable File
512 lines
14 KiB
Perl
Executable File
#!/usr/bin/perl -w
|
|
|
|
#*****************************************************************************
|
|
#!
|
|
#! FILE NAME : boot_linux
|
|
#!
|
|
#! PARAMETERS : -b <bootimage> the name of the boot image to use
|
|
#! -d <device> the interface to use, e.g., eth1
|
|
#! (defaults is eth0)
|
|
#! -f save it in flash memory at address 0x10000
|
|
#! -F save it in flash memory at address 0
|
|
#! -h show some help
|
|
#! -i <image> name of the image to use (default is fimage)
|
|
#! -o <offset> the offset in the flash where the flashing
|
|
#! starts
|
|
#! -O <offset> the offset in the image file where the
|
|
#! flashing starts from
|
|
#! -p print the resulting etrax100boot command
|
|
#! instead of executing it
|
|
#! -s <size> how much to flash (default is the size of
|
|
#! the flash minus the offset specified using
|
|
#! -o or -f)
|
|
#! -S <size> the size of the flash
|
|
#!
|
|
#! All sizes and offsets above can be specified as decimal
|
|
#! numbers, or as hexadecimal numbers by prefixing them with 0x.
|
|
#! It is also possible to use the suffixes k and M to specify
|
|
#! kilo (1024) or mega (1048576).
|
|
#!
|
|
#! DESCRIPTION: Extract the start of the image and any registers that should
|
|
#! be set from the kimage or fimage file, and then boot it.
|
|
#!
|
|
#! FUNCTIONS : convert_size
|
|
#! extract_hw_settings
|
|
#! get_dword
|
|
#! calculate_sdram_init
|
|
#! sdram_command
|
|
#! print_help
|
|
#!
|
|
#!----------------------------------------------------------------------------
|
|
#! HISTORY
|
|
#!
|
|
#! $Log: boot_linux,v $
|
|
#! Revision 1.16 2004/11/01 16:32:27 starvik
|
|
#! Corrected help text to avoid confusion
|
|
#!
|
|
#! Revision 1.15 2003/01/29 11:48:57 pkj
|
|
#! Calculate a flash size large enough for the given image if the
|
|
#! -S option is not specified.
|
|
#!
|
|
#! Revision 1.14 2002/11/18 14:40:09 pkj
|
|
#! Make use of the --loop option to etrax100boot when initialising
|
|
#! SDRAM memories. This requires a lot fewer options to be passed
|
|
#! to the boot loader.
|
|
#!
|
|
#! Revision 1.13 2002/08/15 16:29:02 pkj
|
|
#! * The -S option now accepts the size in bytes (just like the -s option).
|
|
#! For backwards compatibility it still assumes sizes of 16 and less to
|
|
#! be specified in MB.
|
|
#! * The suffixes k and M can now be used with all sizes and offsets to
|
|
#! specify them in kilo or mega.
|
|
#!
|
|
#! Revision 1.12 2002/08/15 15:27:34 pkj
|
|
#! Use $opts{'x'} instead of $opt_x.
|
|
#!
|
|
#! Revision 1.11 2002/07/04 17:06:39 pkj
|
|
#! * No longer specifies a bootfile by default (not needed any longer).
|
|
#! * Implemented option -b to specify a bootfile.
|
|
#! * Removed references to option -l (it was never implemented).
|
|
#!
|
|
#! Revision 1.10 2002/06/04 11:50:23 starvik
|
|
#! Check if mrs_data is specified in kernelconfig (necessary for MCM)
|
|
#!
|
|
#! Revision 1.9 2002/01/29 10:38:26 pkj
|
|
#! Change illegal to invalid.
|
|
#!
|
|
#! Revision 1.8 2001/09/13 12:32:10 pkj
|
|
#! * Added option -S to specify the size of the flash (in MB), as -s
|
|
#! is used to specify how much to flash nowadays.
|
|
#! * Made the default size of the flash depend on the size of the image
|
|
#! file. If it is bigger than 0x200100 then the flash is assumed to
|
|
#! be 4 MB, otherwise it is assumed to be 2 MB.
|
|
#! * Added verification of various options.
|
|
#!
|
|
#! Revision 1.7 2001/09/13 10:25:11 pkj
|
|
#! Minor clean-up.
|
|
#!
|
|
#! Revision 1.6 2001/06/29 10:05:16 pkj
|
|
#! Corrected check for SDRAM.
|
|
#!
|
|
#! Revision 1.5 2001/06/29 09:11:55 pkj
|
|
#! Synchronised boot_elinux and boot_linux.
|
|
#!
|
|
#!----------------------------------------------------------------------------
|
|
#! (C) Copyright 2001, Axis Communications AB, LUND, SWEDEN
|
|
#!****************************************************************************
|
|
|
|
#****************** INCLUDE FILES SECTION ************************************
|
|
|
|
use strict;
|
|
|
|
use Getopt::Std;
|
|
use File::Basename;
|
|
|
|
#****************** VARIABLE DECLARATION SECTION *****************************
|
|
|
|
use vars qw($my_name %opts);
|
|
use vars qw($text_start $cmd);
|
|
use vars qw($image_name $image_size);
|
|
use vars qw($offset $source_offset $flash_size $flashing_size);
|
|
use vars qw($sdram_timing_address $sdram_config_address);
|
|
use vars qw($sdram_precharge $sdram_nop $sdram_refresh $sdram_mrs);
|
|
|
|
#****************** CONSTANT SECTION *****************************************
|
|
|
|
# Register addresses
|
|
$sdram_timing_address = "b0000008";
|
|
$sdram_config_address = "b000000c";
|
|
|
|
# SDRAM commands
|
|
$sdram_precharge = 3;
|
|
$sdram_nop = 0;
|
|
$sdram_refresh = 2;
|
|
$sdram_mrs = 1;
|
|
|
|
#****************** MAIN PROGRAM SECTION *************************************
|
|
|
|
# The name of this program.
|
|
$my_name = basename($0);
|
|
|
|
# Get options
|
|
getopts('b:d:fFhi:o:O:ps:S:', \%opts);
|
|
|
|
&print_help if ($opts{'h'});
|
|
|
|
# Name and existance of the image
|
|
$image_name = ($opts{'i'} ? $opts{'i'} : 'fimage');
|
|
die "Could not find the image $image_name!\n" unless (-s $image_name);
|
|
|
|
if ($opts{'f'} || $opts{'F'})
|
|
{
|
|
$image_size = -s $image_name;
|
|
|
|
$offset = ($opts{'f'} ? 0x10000 : 0);
|
|
|
|
$offset = &convert_size($opts{'o'}) if (defined($opts{'o'}));
|
|
|
|
die("$my_name: Invalid destination offset\n") if ($offset !~ /^\d+$/);
|
|
|
|
my $base_name = basename($image_name);
|
|
if ($base_name eq 'timage' || $base_name eq 'flash1.img')
|
|
{
|
|
$source_offset = 0;
|
|
}
|
|
else
|
|
{
|
|
$source_offset = $offset;
|
|
}
|
|
|
|
$source_offset = &convert_size($opts{'O'}) if (defined($opts{'O'}));
|
|
|
|
die("$my_name: Invalid source offset\n") if ($source_offset !~ /^\d+$/);
|
|
die("$my_name: Source offset > image size\n") if ($source_offset > $image_size);
|
|
|
|
if (defined($opts{'S'}))
|
|
{
|
|
# Backwards compatibility to allow specifying the flash size in MB
|
|
# without using an M suffix
|
|
$opts{'S'} .= 'M' if ($opts{'S'} =~ /^\d+$/ && $opts{'S'} <= 16);
|
|
|
|
$flash_size = &convert_size($opts{'S'});
|
|
}
|
|
else
|
|
{
|
|
# Calculate a flash size large enough for the image without the checksum
|
|
# and HWID.
|
|
$flash_size = ($image_size - $source_offset + $offset) & 0xFFFF0000;
|
|
}
|
|
|
|
die("$my_name: Invalid flash size\n") if ($flash_size !~ /^\d+$/);
|
|
die("$my_name: Destination offset > flash size\n") if ($offset > $flash_size);
|
|
if (defined($opts{'s'}))
|
|
{
|
|
$flashing_size = &convert_size($opts{'s'});
|
|
}
|
|
else
|
|
{
|
|
$flashing_size = $flash_size - $offset;
|
|
}
|
|
|
|
die("$my_name: Invalid size to flash\n") if ($flashing_size !~ /^\d+$/);
|
|
|
|
if ($flashing_size > $flash_size - $offset)
|
|
{
|
|
$flashing_size = $flash_size - $offset;
|
|
printf("Warning: Flashing size limited to 0x%lx due to the offset (0x%lx) and flash size (0x%lx).\n", $flashing_size, $offset, $flash_size);
|
|
}
|
|
|
|
if ($flashing_size > $image_size - $source_offset)
|
|
{
|
|
$flashing_size = $image_size - $source_offset;
|
|
printf("Warning: Flashing size limited to 0x%lx due to the offset (0x%lx) and image size (0x%lx).\n", $flashing_size, $source_offset, $image_size);
|
|
}
|
|
}
|
|
|
|
# Create the command line to boot the image
|
|
if (system('./etrax100boot --help > /dev/null') == 0)
|
|
{
|
|
$cmd = './etrax100boot';
|
|
}
|
|
elsif (system('svinto_boot --help > /dev/null') == 0)
|
|
{
|
|
$cmd = 'svinto_boot';
|
|
}
|
|
else
|
|
{
|
|
die("Cannot find e100boot program in your PATH!\n");
|
|
}
|
|
|
|
$cmd .= " --device $opts{'d'}" if ($opts{'d'});
|
|
|
|
$cmd .= &extract_hw_settings;
|
|
|
|
$cmd .= " --bootfile $opts{'b'}" if ($opts{'b'});
|
|
$cmd .= " --file $image_name $text_start";
|
|
|
|
if ($opts{'f'} || $opts{'F'})
|
|
{
|
|
$cmd .= sprintf(" --flash %lx %lx %lx --jump 0",
|
|
hex($text_start) + $source_offset, $offset, $flashing_size);
|
|
}
|
|
else
|
|
{
|
|
$cmd .= " --jump $text_start";
|
|
}
|
|
|
|
if ($opts{'p'})
|
|
{
|
|
print "Command:\n$cmd\n";
|
|
}
|
|
else
|
|
{
|
|
system($cmd);
|
|
}
|
|
|
|
exit 0;
|
|
|
|
#****************** FUNCTION DEFINITION SECTION ******************************
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: convert_size
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub convert_size
|
|
{
|
|
my($arg) = @_;
|
|
my $size;
|
|
|
|
if ($arg =~ /^0x([\da-fA-F]+)([kM])?$/)
|
|
{
|
|
$size = hex($1);
|
|
}
|
|
elsif ($arg =~ /^(\d+)([kM])?$/)
|
|
{
|
|
$size = $1;
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
if (!defined($2))
|
|
{
|
|
return $size;
|
|
}
|
|
elsif ($2 eq 'k')
|
|
{
|
|
return $size * 1024;
|
|
}
|
|
elsif ($2 eq 'M')
|
|
{
|
|
return $size * 1048576;
|
|
}
|
|
}
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: extract_hw_settings
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub extract_hw_settings
|
|
{
|
|
my $data;
|
|
my $dbg_port;
|
|
my $sdram_enabled;
|
|
my $return_value = "";
|
|
my $sdram_config;
|
|
|
|
# The hw information table has the following format
|
|
#
|
|
# "HW_PARAM_MAGIC"
|
|
# text_start (dword)
|
|
# serial debg port (dword)
|
|
# sdram enabled (dword)
|
|
# register address (dword)
|
|
# register value (dword)
|
|
# ...
|
|
# 0
|
|
|
|
open(FILE, "$image_name") || die("Could not open '$image_name'");
|
|
|
|
while (<FILE>)
|
|
{
|
|
if (m/HW_PARAM_MAGIC/g)
|
|
{
|
|
# Seek to first byte after magic
|
|
seek(FILE, -length($_) + pos($_), 1);
|
|
last;
|
|
}
|
|
}
|
|
|
|
$text_start = &get_dword;
|
|
$dbg_port = &get_dword;
|
|
$sdram_enabled = int(&get_dword);
|
|
|
|
while (1)
|
|
{
|
|
my $register = &get_dword;
|
|
my $value = &get_dword;
|
|
|
|
last if ($register eq "00000000");
|
|
|
|
if ($sdram_enabled)
|
|
{
|
|
if ($register eq $sdram_config_address)
|
|
{
|
|
$sdram_config = $value;
|
|
}
|
|
elsif ($register eq $sdram_timing_address)
|
|
{
|
|
$return_value .= &calculate_sdram_init($value, $sdram_config);
|
|
next;
|
|
}
|
|
}
|
|
|
|
$return_value .= " --setreg $register $value";
|
|
}
|
|
|
|
close(FILE);
|
|
|
|
return $return_value;
|
|
}
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: get_dword
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub get_dword
|
|
{
|
|
my $data;
|
|
|
|
read(FILE, $data, 4);
|
|
return unpack("H8", pack("V", unpack("N", $data)));
|
|
}
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: calculate_sdram_init
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub calculate_sdram_init
|
|
{
|
|
# Refer to ETRAX 100LX Designers Reference for a description of SDRAM
|
|
# initialization
|
|
my $sdram_init_val = hex($_[0]);
|
|
my $sdram_config_val = hex($_[1]);
|
|
my $bus_width = $sdram_config_val & 0x00800000;
|
|
my $speed;
|
|
my $cas_latency;
|
|
my $mrs_data;
|
|
my $temp;
|
|
my $return_value;
|
|
my $value;
|
|
|
|
$mrs_data = ($sdram_init_val & 0x00ff0000) >> 16;
|
|
$sdram_init_val &= 0x8000ffff; # Make sure mrs data is 0
|
|
$sdram_init_val |= 0x80000000; # Make sure sdram is enabled
|
|
$speed = $sdram_init_val & 0x1000;
|
|
$cas_latency = $sdram_init_val & 0x3;
|
|
if ($speed) # 100 MHz
|
|
{
|
|
$cas_latency += 2;
|
|
}
|
|
else # 50 MHz
|
|
{
|
|
$cas_latency += 1;
|
|
}
|
|
|
|
# Calculate value of mrs_data
|
|
# CAS latency = 2 && bus_width = 32 => 0x40
|
|
# CAS latency = 3 && bus_width = 32 => 0x60
|
|
# CAS latency = 2 && bus_width = 16 => 0x20
|
|
# CAS latency = 3 && bus_width = 16 => 0x30
|
|
if ($mrs_data == 0)
|
|
{
|
|
if ($bus_width == 0) # 16 bits
|
|
{
|
|
$mrs_data = $cas_latency == 2 ? 0x20 : 0x30;
|
|
}
|
|
else # 32 bits
|
|
{
|
|
$mrs_data = $cas_latency == 2 ? 0x40 : 0x60;
|
|
}
|
|
}
|
|
|
|
$temp = $sdram_init_val | 0x0000c000; # Disable refresh
|
|
$return_value .= &sdram_command($temp);
|
|
$return_value .= " --pause 20000";
|
|
|
|
$return_value .= &sdram_command($temp, $sdram_precharge);
|
|
$return_value .= &sdram_command($temp, $sdram_nop);
|
|
|
|
$return_value .= " --setreg +0 7";
|
|
$return_value .= " --label label1";
|
|
$return_value .= &sdram_command($temp, $sdram_refresh);
|
|
$return_value .= &sdram_command($temp, $sdram_nop);
|
|
$return_value .= " --loop +0 label1";
|
|
|
|
$return_value .= &sdram_command($temp, $sdram_mrs, $mrs_data);
|
|
$return_value .= &sdram_command($temp, $sdram_nop);
|
|
|
|
$return_value .= &sdram_command($sdram_init_val);
|
|
|
|
return $return_value;
|
|
}
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: sdram_command
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub sdram_command
|
|
{
|
|
my($temp, $value, $mrs_data) = @_;
|
|
|
|
$value ||= 0;
|
|
if ($value == $sdram_mrs)
|
|
{
|
|
$value = sprintf("%lx", $temp | ($value << 9) | ($mrs_data << 16));
|
|
}
|
|
else
|
|
{
|
|
$value = sprintf("%lx", $temp | ($value << 9));
|
|
}
|
|
|
|
return " --setreg $sdram_timing_address $value";
|
|
}
|
|
|
|
#*****************************************************************************
|
|
##
|
|
## FUNCTION NAME: print_help
|
|
##
|
|
##****************************************************************************
|
|
|
|
sub print_help
|
|
{
|
|
print "\nAXIS $my_name, ", '$Revision: 1.16 $ $Date: 2004/11/01 16:32:27 $ ', "\n";
|
|
die <<EOT;
|
|
Copyright (C) 2001-2002 Axis Communications AB
|
|
|
|
DESCRIPTION:
|
|
This program is used to boot (and flash) a linux image to a box.
|
|
It tries to extract the required ETRAX 100 settings from the image file.
|
|
|
|
SYNTAX:
|
|
$my_name [options]
|
|
|
|
OPTIONS:
|
|
-b <bootfile> : The boot image to use.
|
|
-d <device> : The network interface to use, default is eth0.
|
|
-f : Save the image in the flash memory starting at
|
|
address 0x10000.
|
|
-F : Save the image in the flash memory starting at
|
|
address 0.
|
|
-h : Print this help text.
|
|
-i <image> : The path and name of the image to use, default
|
|
is fimage.
|
|
-o <offset> : The offset in the flash where the flashing starts.
|
|
-O <offset> : The offset in the image file where the flashing
|
|
starts from.
|
|
-p : Print the resulting etrax100boot command instead
|
|
of executing it.
|
|
-s <size> : How much to flash (default is the size of the
|
|
flash minus the offset specified using -o or -f).
|
|
-S <size> : The size of the flash.
|
|
|
|
All sizes and offsets above can be specified as decimal numbers, or as
|
|
hexadecimal numbers by prefixing them with 0x. It is also possible to use
|
|
the suffixes k and M to specify kilo (1024) or mega (1048576).
|
|
|
|
EOT
|
|
}
|
|
|
|
#****************** END OF FILE boot_linux ***********************************
|