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//==========================================================================

//

//      redboot_linux_exec.c

//

//      RedBoot exec command for Linux booting

//

//==========================================================================

// ####ECOSGPLCOPYRIGHTBEGIN####                                            

// -------------------------------------------                              

// This file is part of eCos, the Embedded Configurable Operating System.   

// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc.

//

// eCos 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 or (at your option) any later      

// version.                                                                 

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,    

// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            

//

// As a special exception, if other files instantiate templates or use      

// macros or inline functions from this file, or you compile this file      

// and link it with other works to produce a work based on this file,       

// this file does not by itself cause the resulting work to be covered by   

// the GNU General Public License. However the source code for this file    

// must still be made available in accordance with section (3) of the GNU   

// General Public License v2.                                               

//

// This exception does not invalidate any other reasons why a work based    

// on this file might be covered by the GNU General Public License.         

// -------------------------------------------                              

// ####ECOSGPLCOPYRIGHTEND####                                              

//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):    yoshinori sato

// Contributors: yoshinori sato

// Date:         2002-05-28

// Purpose:      RedBoot exec command for uClinux booting

//

//####DESCRIPTIONEND####

//

//===========================================================================

#include <redboot.h>

#include <cyg/infra/cyg_type.h>

#include <cyg/hal/hal_intr.h>

#include <cyg/hal/hal_cache.h>

#define xstr(s) str(s)

#define str(s...) #s

#if defined(CYGDAT_REDBOOT_H8300_LINUX_COMMAND_START)

static void

do_exec(int argc, char *argv[])

{

    cyg_uint32 entry = CYGDAT_REDBOOT_H8300_LINUX_BOOT_ENTRY;

    cyg_uint32 command_addr = CYGDAT_REDBOOT_H8300_LINUX_COMMAND_START;

    char *cmd_line = xstr( CYGDAT_REDBOOT_H8300_LINUX_BOOT_COMMAND_LINE );

    bool command_addr_set,command_line_set;

    struct option_info opts[2];

    char *pcmd;

    int oldints;

    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,

              &command_addr, &command_addr_set, "command line address");

    init_opts(&opts[1], 'c', true, OPTION_ARG_TYPE_STR,

              &cmd_line, &command_line_set, "kernel command line");

    if (!scan_opts(argc, argv, 1, opts, 2, (void *)&entry,

                   OPTION_ARG_TYPE_NUM, "entry address"))

            return ;

    if (entry == (unsigned long)NO_MEMORY) {

        diag_printf("Can't execute Linux - invalid entry address\n");

        return;

    }

    diag_printf("Now booting linux kernel:\n");

    diag_printf(" Entry Address 0x%08x\n", entry);

    diag_printf(" Cmdline : %s\n", cmd_line);

    HAL_DISABLE_INTERRUPTS(oldints);

    HAL_DCACHE_SYNC();

    HAL_ICACHE_DISABLE();

    HAL_DCACHE_DISABLE();

    HAL_DCACHE_SYNC();

    HAL_ICACHE_INVALIDATE_ALL();

    HAL_DCACHE_INVALIDATE_ALL();

    pcmd = (char *)command_addr;

    while ((*pcmd++ = *cmd_line++));

    asm ("jmp @%0" : : "r" (entry));

}

RedBoot_cmd("exec",

            "Execute an image",

            "[-b <command line addr>] [-c \"kernel command line\"]\n"

            "        [<entry point>]",

            do_exec

    );

#endif

static void

do_set_mem(int argc, char *argv[])

{

    struct option_info opts[5];

    unsigned long base, data;

    bool base_set, data_set,len_set = 0;

    static char _size = 1;

    bool set_32bit, set_16bit, set_8bit;

    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM,

              &base, (bool *)&base_set, "base address");

    init_opts(&opts[1], 'd', true, OPTION_ARG_TYPE_NUM,

              &data, (bool *)&data_set, "write_data");

    init_opts(&opts[2], '4', false, OPTION_ARG_TYPE_FLG,

              &set_32bit, (bool *)0, "dump 32 bit units");

    init_opts(&opts[3], '2', false, OPTION_ARG_TYPE_FLG,

              &set_16bit, (bool *)0, "dump 16 bit units");

    init_opts(&opts[4], '1', false, OPTION_ARG_TYPE_FLG,

              &set_8bit, (bool *)0, "dump 8 bit units");

    if (!scan_opts(argc, argv, 1, opts, 5, 0, 0, "")) {

        return;

    }

    if (!base_set) {

      diag_printf("illigal base\n");

      return ;

    }

    if (!data_set) {

      diag_printf("illigal data\n");

      return ;

    }

    if (set_32bit) {

      _size = 4;

    } else if (set_16bit) {

      _size = 2;

    } else if (set_8bit) {

      _size = 1;

    }

    if (!len_set) {

        _size = 4;

    }

    diag_printf("%d %x = %x\n",_size,base,data);

    switch( _size ) {

    case 1:

      *(unsigned char *)base=data;

      break;

    case 2:

      *(unsigned short *)base=data;

      break;

    case 4:

      *(unsigned long *)base=data;

      break;

    }

}

RedBoot_cmd("set",

            "Set Memory",

            "-b address -[1|2|4] -d data",

            do_set_mem

    );