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spidyboot.cc
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spidyboot.cc
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/*
* Copyright (C) 2012 acaldmail@gmail.com
*
* Author: Antonino Calderone <acaldmail@gmail.com>
*
* Version 1.0 Initial release
*
* This is a tool to write SPI bootable images to a filesystem
* and build SPI images to a binary file for writing later.
*
* 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
*/
//------------------------------------------------------------------------------
#ifdef WIN32
#include "targetver.h"
#include <tchar.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <memory.h>
#include <string>
#include "tokenizer.h"
//------------------------------------------------------------------------------
#define SPIDYBOOT_VERSION "1.0"
//------------------------------------------------------------------------------
class mc_config_t
{
public:
typedef unsigned int addr_t;
typedef unsigned int value_t;
typedef std::list< std::pair< addr_t, value_t> > assignlist_t;
static void rebase_immr( addr_t base, addr_t newbase, assignlist_t & lst )
{
for ( assignlist_t::iterator i = lst.begin();
i != lst.end();
++i )
{
if ((i->first & base) == base)
{
i->first ^= base;
i->first |= newbase;
}
}
}
private:
typedef util::tokenizer_t< std::string > tokenizer_t;
bool get_token(
tokenizer_t::token_t & token,
tokenizer_t & tknzr,
const tokenizer_t::token_class_t & skipping_cls = tokenizer_t::BLANK )
{
do
{
if (! tknzr.get_next_token( token ) )
{
return false;
}
} while (token.tkncls == skipping_cls);
return true;
}
//--------------------------------------------------------------------------
bool match ( const std::string& s, const std::list<std::string>& l )
{
std::list<std::string>::const_iterator i = l.begin();
for (; i != l.end(); ++i ) {
if ( s.find(*i) != std::string::npos ) {
return true;
}
}
return false;
}
//--------------------------------------------------------------------------
bool extr_exp_tkn( const std::string & expected_token, tokenizer_t & tknzr )
{
tokenizer_t::token_t token;
if (!get_token(token, tknzr)) {
return false;
}
if ( token != expected_token )
{
return false;
}
return true;
}
//--------------------------------------------------------------------------
bool parse_cfg( tokenizer_t & tknzr, std::string& msg, assignlist_t& lst )
{
tokenizer_t::token_class_set_t blnk_cls;
tokenizer_t::token_class_set_t sngt_cls;
tokenizer_t::token_class_set_t linestyle_comment_cls;
blnk_cls.insert(" ");
blnk_cls.insert("\t");
sngt_cls.insert("[");
sngt_cls.insert("]");
sngt_cls.insert(",");
sngt_cls.insert("+");
sngt_cls.insert("(");
sngt_cls.insert(")");
sngt_cls.insert("\"");
sngt_cls.insert("=");
linestyle_comment_cls.insert("//");
linestyle_comment_cls.insert("#");
tknzr.register_token_atomic( sngt_cls );
tknzr.register_token_blank( blnk_cls );
tknzr.register_token_linestyle_comment( linestyle_comment_cls );
tokenizer_t::token_t token;
bool end = false;
bool syntax_error = false;
while ( ! end )
{
token.value = "";
end = ! tknzr.get_next_token( token );
if ( token.tkncls == tokenizer_t::EMPTY_LINE ||
token.tkncls == tokenizer_t::LINESTYLE_COMMENT ||
token.tkncls == tokenizer_t::BLANK )
{
//skip empty line or line-style comment
continue;
}
if ( token.tkncls == tokenizer_t::END_OF_STREAM )
{
// no more token
break;
}
if ( token.value == "sleep" )
{
std::string address = "0x40000001"; // TODO verify...
std::string value;
if ( ! get_token( token, tknzr ) ) {
msg = "value missing";
syntax_error = true;
break;
}
value = token.value;
addr_t ulAddr = 0;
value_t ulVal = 0;
sscanf(address.c_str(), "%x", &ulAddr);
sscanf(value.c_str(), "%x", &ulVal);
lst.push_back( { ulAddr, ulVal } );
continue;
}
if ( token.value == "writemem.l" )
{
std::string address;
std::string value;
if ( ! get_token( token, tknzr ) )
{
msg = "first value missing";
syntax_error = true;
break;
}
address = token.value;
if (address.c_str()[0]<'0'|| address.c_str()[0]>'9')
{
msg = "invalid address ";
msg += address;
syntax_error = true;
break;
}
if ( ! get_token( token, tknzr ) )
{
msg = "second value missing";
syntax_error = true;
break;
}
value = token.value;
if (value.c_str()[0]<'0'|| value.c_str()[0]>'9')
{
msg = "invalid value ";
msg += value;
syntax_error = true;
break;
}
addr_t ulAddr = 0;
value_t ulVal = 0;
sscanf(address.c_str(), "%x", &ulAddr);
sscanf(value.c_str(), "%x", &ulVal);
lst.push_back( { ulAddr, ulVal } );
continue;
}
msg = "Unexpected symbol '";
msg += token.value;
msg += "'";
syntax_error = true;
break;
} // while
return ! syntax_error;
}
//--------------------------------------------------------------------------
bool parse_dat( tokenizer_t & tknzr, std::string& msg, assignlist_t& lst )
{
tokenizer_t::token_class_set_t blnk_cls;
tokenizer_t::token_class_set_t sngt_cls;
tokenizer_t::token_class_set_t linestyle_comment_cls;
blnk_cls.insert(" ");
blnk_cls.insert("\t");
sngt_cls.insert(":");
linestyle_comment_cls.insert("//");
linestyle_comment_cls.insert("#");
tknzr.register_token_atomic( sngt_cls );
tknzr.register_token_blank( blnk_cls );
tknzr.register_token_linestyle_comment( linestyle_comment_cls );
tokenizer_t::token_t token;
bool end = false;
bool syntax_error = false;
while ( ! end )
{
token.value = "";
end = ! tknzr.get_next_token( token );
if ( token.tkncls == tokenizer_t::EMPTY_LINE ||
token.tkncls == tokenizer_t::LINESTYLE_COMMENT ||
token.tkncls == tokenizer_t::BLANK )
{
//skip empty line or line-style comment
continue;
}
if ( token.tkncls == tokenizer_t::END_OF_STREAM )
{
// no more token
break;
}
std::string address;
std::string value;
address = token.value;
if (!extr_exp_tkn(":", tknzr))
{
msg = ": missing";
syntax_error = true;
break;
}
if ( ! get_token( token, tknzr ) )
{
msg = "value missing";
syntax_error = true;
break;
}
value = token.value;
addr_t ulAddr = 0;
value_t ulVal = 0;
sscanf(address.c_str(), "%x", &ulAddr);
sscanf(value.c_str(), "%x", &ulVal);
lst.push_back( { ulAddr, ulVal } );
} // while
return ! syntax_error;
}
//--------------------------------------------------------------------------
public:
//--------------------------------------------------------------------------
bool compile_cfg( const std::string & filename,
assignlist_t& lst,
std::string& msg )
{
util::file_stream< std::string> fs( filename );
tokenizer_t t( fs );
if ( ! fs.open() )
{
msg = "Unable to open \"";
msg += filename + "\"";
return false;
}
bool res = parse_cfg( t, msg, lst );
fs.close();
return res;
}
//--------------------------------------------------------------------------
bool compile_dat( const std::string & filename,
assignlist_t& lst,
std::string& msg )
{
util::file_stream< std::string> fs( filename );
tokenizer_t t( fs );
if ( ! fs.open() )
{
msg = "Unable to open \"";
msg += filename + "\"";
return false;
}
bool res = parse_dat( t, msg, lst );
fs.close();
return res;
}
};
//------------------------------------------------------------------------------
class boot_spi_data_t
{
/*
SPI Bootable image format
0x00-0x3F Reserved.
0x40-0x43 BOOT signature. This location should contain the value 0x424F0_4F54,
which is the ASCII code for
BOOT. The eSPI loader code will search for this signature,
initially in 24-bit addressable mode.
If the value in this location doesn't match the BOOT
signature, then the EEPROM is accessed again, but in 16-bit mode.
If the value in this location still does not match the BOOT signature,
it means that the eSPI device doesn't contain a valid user code.
In such case the eSPI loader code will disable the eSPI and will issue
a hardware reset request of the SoC by setting RSTCR[HRESET_REQ].
0x44-0x47 Reserved
0x48-0x4B User's code length.
Number of bytes in the user's code to be copied.
Must be a multiple of 4.
4 = User's code length = 2 Gbytes.
0x4C-0x4F Reserved
0x50-0x53 Source Address. Contains the starting address of the user's code
as an offset from the EEPROM starting address. In 24-bit addressing mode,
the 8 most significant bits of this should be written to as zero, because
the EEPROM is accessed with a 3-byte (24-bit) address.
In 16-bit addressing mode, the 16 most significant bits of this should
be written to as zero.
0x54-0x57 Reserved
0x58-0x5B Target Address. Contains the target address in the system's local
memory address space in which the user's code will be copied to.
This is a 32-bit effective address. The core is configured in such a way
that the 36-bit real address is equal to this (with 4 most significant bits
zero).
0x5C-0x5F Reserved
0x60-0x63 Execution Starting Address. Contains the jump address in the
system's local memory address space into the user's code first instruction
to be executed.
This is a 32-bit effective address. The core is configured in such a way
that the 36-bit real address is equal to this (with 4 most significant bits
zero).
0x64-0x67 Reserved
0x68-0x6B N. Number of Config Address/Data pairs.
0x6C-0x7F Reserved.
0x80-0x83 Config Address 1
0x84-0x87 Config Data 1
0x88-0x8B Config Address 2
0x8C-0x8F Config Data 2
...
0x80 + 8x(N-1) Config Address N
0x80 + 8x(N-1) + 4 Config Data N (Final Config Data N optional)
...
User's Code
*/
private:
// Default pre-initialized preable
static unsigned char preamble_bin[ 108 ];
//--------------------------------------------------------------------------
unsigned char _data[ 1024 ];
//--------------------------------------------------------------------------
enum
{
OFS_USER_CODE_LEN = 0x48,
OFS_SRC_ADDR = 0x50,
OFS_TARGET_ADDR = 0x58,
OFS_EXEST_ADDR = 0x60,
OFS_CFG_PAIRS_NUM = 0x68,
OFS_FIRST_CFG_ADDR= 0x80,
OFS_FIRST_CFG_DATA= 0x84
};
//--------------------------------------------------------------------------
public:
boot_spi_data_t()
{
memset( _data, 0, sizeof(_data) );
}
//--------------------------------------------------------------------------
void set_default()
{
memcpy( _data, preamble_bin, sizeof(preamble_bin) );
}
//--------------------------------------------------------------------------
bool load_from_file( const std::string& filename )
{
FILE * f = fopen( filename.c_str(), "rb" );
if (f) {
int rb = fread( _data, 1, sizeof(_data), f );
if (rb<sizeof(_data))
{
fclose(f);
return false;
}
fclose(f);
return true;
}
return false;
}
//--------------------------------------------------------------------------
bool save( const std::string& filename )
{
FILE * f = fopen( filename.c_str(), "wb" );
if (!f)
{
return false;
}
int rb = fwrite( _data, 1, sizeof(_data), f );
if (rb< ((int) sizeof(_data)))
{
fclose(f);
return false;
}
fclose(f);
return true;
}
//--------------------------------------------------------------------------
bool patch( const std::string& filename )
{
FILE * f = fopen( filename.c_str(), "r+b" );
if (!f)
{
return false;
}
if (fseek(f, 0, SEEK_END)<0)
{
fclose(f);
return false;
}
size_t size = ftell(f);
fseek(f, 0, SEEK_SET);
if (int(size) < ( (int) sizeof(_data) ) )
{
fclose(f);
return false;
}
int rb = fwrite( _data, 1, sizeof(_data), f );
if (rb< ((int) sizeof(_data)))
{
fclose(f);
return false;
}
fclose(f);
return true;
}
//--------------------------------------------------------------------------
bool attach_to( const std::string& srcname, const std::string& dstname )
{
bool ret = false;
FILE * f = 0;
char * databuf = 0;
do {
//open source file
f = fopen( srcname.c_str(), "rb" );
//get file size
if (!f) break;
if (0>fseek( f, 0, SEEK_END )) break;
int len = (int) ftell( f );
if (len <0) break;
fseek(f, 0, SEEK_SET);
//allocate buffer of file size + header len bytes
databuf = new char [ len + sizeof(_data) ];
if (! databuf) break; // no enough memory
//set preamble
memcpy(databuf, _data, sizeof(_data));
//append content of source file
int rb = fread( databuf+sizeof(_data), 1, len, f );
if (rb<len) break;
fclose(f);
//create destination file
f = fopen( dstname.c_str(), "wb" );
if (!f) break;
//write preamble + data
int wb = fwrite( databuf, 1, len + sizeof(_data), f );
if (wb<(len + (int) sizeof(_data))) break;
ret = true; // terminated succesfully
}
while(0);
if (f) fclose(f);
delete [] databuf;
return ret;
}
//--------------------------------------------------------------------------
inline unsigned int get_dword(int offset) const throw()
{
const unsigned int value =
(_data[offset + 0]<<24) +
(_data[offset + 1]<<16) +
(_data[offset + 2]<<8) +
(_data[offset + 3]);
return value;
}
//--------------------------------------------------------------------------
inline void patch_dword_at(int offset, unsigned int data)
{
_data[offset + 0] = (data>>24) & 0xff;
_data[offset + 1] = (data>>16) & 0xff;
_data[offset + 2] = (data>> 8) & 0xff;
_data[offset + 3] = (data>> 0) & 0xff;
}
//--------------------------------------------------------------------------
inline unsigned int get_user_code_len() const throw()
{
return get_dword( OFS_USER_CODE_LEN );
}
//--------------------------------------------------------------------------
inline void set_user_code_len( unsigned int data ) throw()
{
patch_dword_at( OFS_USER_CODE_LEN, data );
}
//--------------------------------------------------------------------------
inline unsigned int get_src_addr() const throw()
{
return get_dword( OFS_SRC_ADDR );
}
//--------------------------------------------------------------------------
inline void set_src_addr( unsigned int data ) throw()
{
patch_dword_at( OFS_SRC_ADDR, data );
}
//--------------------------------------------------------------------------
inline unsigned int get_target_addr() const throw()
{
return get_dword( OFS_TARGET_ADDR );
}
//--------------------------------------------------------------------------
inline void set_target_addr( unsigned int data ) throw()
{
patch_dword_at( OFS_TARGET_ADDR, data );
}
//--------------------------------------------------------------------------
inline unsigned int get_exest_addr() const throw()
{
return get_dword( OFS_EXEST_ADDR );
}
//--------------------------------------------------------------------------
inline void set_exest_addr( unsigned int data ) throw()
{
patch_dword_at( OFS_EXEST_ADDR, data );
}
//--------------------------------------------------------------------------
inline unsigned int get_n_cfg_pairs() const throw()
{
return get_dword( OFS_CFG_PAIRS_NUM );
}
//--------------------------------------------------------------------------
inline void set_n_cfg_pairs( unsigned int data ) throw()
{
patch_dword_at( OFS_CFG_PAIRS_NUM, data );
}
//--------------------------------------------------------------------------
bool set_cfg_pair( int idx, unsigned int addr, unsigned int data ) throw()
{
int dataofs_addr = OFS_FIRST_CFG_ADDR + (idx<<3);
int dataofs_data = OFS_FIRST_CFG_DATA + (idx<<3);
if (dataofs_addr >= (sizeof(_data)) )
{
return false;
}
patch_dword_at( dataofs_addr, addr );
patch_dword_at( dataofs_data, data );
return true;
}
//--------------------------------------------------------------------------
void show() const throw()
{
char boot_sign[ 5 ] = {0};
boot_sign[0] = _data[0x40];
boot_sign[1] = _data[0x41];
boot_sign[2] = _data[0x42];
boot_sign[3] = _data[0x43];
bool valid_sign = std::string(boot_sign) == "BOOT";
printf(" 0x40- 0x43 BOOT signature : 0x%02x%02x%02x%02x == "
"'%s' %s\n",
boot_sign[0], boot_sign[1], boot_sign[2], boot_sign[3], boot_sign,
valid_sign ? "OK" : "NOT OK");
if (! valid_sign )
{
printf("WARNING: inalid signature '%s' != 'BOOT'..."
"wrong header format ?\n", boot_sign);
}
unsigned int val = get_user_code_len();
printf(" 0x48- 0x4B User's code length : 0x%08x (%u bytes - %u Kb)\n",
val, val, (val >> 10) + ((val & 1023) ? 1 : 0 ));
if ((unsigned) val> 1024U*1024U )
{
printf("WARNING: code length seems uge... wrong header format ?\n");
}
printf(" 0x50- 0x53 Source Address : 0x%08x\n", get_src_addr());
printf(" 0x58- 0x5B Target Address : 0x%08x\n", get_target_addr());
printf(" 0x60- 0x63 Exe Start Address : 0x%08x\n", get_exest_addr());
val = get_n_cfg_pairs();
printf(" 0x68- 0x6B N.of Adr/Data pairs : 0x%08x (%u)\n", val, val);
if ((unsigned) val> 1024U )
{
printf("WARNING: too many args, cutting off at 1024 bytes\n");
}
for ( int i = 0; i<int(val); ++i )
{
int dataofs_addr = OFS_FIRST_CFG_ADDR + (i<<3);
int dataofs_data = OFS_FIRST_CFG_DATA + (i<<3);
if (dataofs_addr >= (sizeof(_data)) )
{
break;
}
unsigned int addr = get_dword( dataofs_addr );
unsigned int data = get_dword( dataofs_data );
printf("0x%03x-0x%03x addr[%2i]@0x%08x := 0x%08x\n",
dataofs_addr, dataofs_data+3, i, addr, data);
}
}
//------------------------------------------------------------------------------
};
class cmd_args_t
{
public:
struct cfg_t
{
std::string app_fname;
bool show_help;
bool show_version;
bool show_info;
bool rebase;
bool replacepreamble;
bool patchtrgaddr;
bool patchsrcaddr;
bool patchexeaddr;
mc_config_t::addr_t baddr;
mc_config_t::addr_t newaddr;
mc_config_t::addr_t trgaddr;
mc_config_t::addr_t srcaddr;
mc_config_t::addr_t exeaddr;
std::string error;
std::string bin_fname;
std::string prb_fname;
std::string cfg_fname;
std::string dat_fname;
std::string src_fname;
std::string dst_fname;
//--------------------------------------------------------------------------
inline cfg_t() throw()
:
app_fname("spidyboot"),
show_help(false),
show_version(false),
show_info(false),
rebase(false),
replacepreamble(false),
patchtrgaddr(false),
patchsrcaddr(false),
patchexeaddr(false),
baddr(0),
newaddr(0),
trgaddr(0),
srcaddr(0),
exeaddr(0)
{}
}
config;
//------------------------------------------------------------------------------
void show_help() const throw()
{
printf("Usage:\n");
printf("%s \n"
" --help |\n"
" --ver |\n"
" --show \n"
" --bin <src_binary_file> \n"
" --cfg <cfg_file> | --dat <dat_file> \n"
" [ --prb <preamble_file> ] \n"
" [ --spi -s <bootcode_file> -d <spiboot_file> | "
"--patch <spiboot_file> ] \n"
" [ --addr <baddr> <newaddr> ]\n"
" [ --tga <trgaddr> ] \n"
" [ --sra <srcaddr> ] \n"
" [ --exe <exeaddr> ] \n",
config.app_fname.c_str());
printf("Where:\n--help\n");
printf(" Show this help message\n\n");
printf("--ver\n");
printf(" Show program version\n\n");
printf("--show\n");
printf(" Show preamble info\n\n");
printf("--bin <src_binary_file>\n");
printf(" Read the preamble from <src_binary_file>\n\n");
printf("--cfg <cfg_file>\n");
printf(" Modify the preamble by using "
"data read from a DRAM config file\n\n");
printf("--dat <dat_file>\n");
printf(" Modify the preamble by using "
"data read from a DAT file\n\n");
printf("--prb <preamble_file> \n");
printf(" Save the preamble in the file <preamble_file>\n\n");
printf("--spi -s <bootcode_file> -d <spiboot_file> \n");
printf(" Create a spi-flash image: "
"<spiboot_file> = preamble + <bootcode_file>\n\n");
printf("--patch <spiboot_file>\n");
printf(" Patch the preamble of an existing spi-flash image\n\n");
printf("--addr <baddr> <newaddr>\n");
printf(" Replace the base address <baddr> with new value <newaddr>\n\n");
printf("--tga <trgaddr> \n");
printf(" Replace the default target address with new value <trgaddr>\n\n");
printf("--sra <srcaddr> \n");
printf(" Replace the default source address with new value <srcaddr>\n\n");
printf("--exe <exeaddr> \n");
printf(" Replace the default exe start address with new value <exeaddr>\n");
}
void show_version() const throw()
{
printf("Version " SPIDYBOOT_VERSION " \n");
}
private:
enum state_t
{
CONTINUE_PARSING,