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# ====================================================================
#
#      hal_powerpc_vads.cdl
#
#      Motorola MPC8260 Voyager ADS board HAL package configuration data
#
# ====================================================================
## ####ECOSGPLCOPYRIGHTBEGIN####                                            
## -------------------------------------------                              
## This file is part of eCos, the Embedded Configurable Operating System.   
## Copyright (C) 1998, 1999, 2000, 2001, 2002 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):      wpd
# Original data:  hmt
# Contributors:
# Date:           YYYY-MM-DD
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_POWERPC_VADS {
    display       "MPC8260 VADS board"
    parent        CYGPKG_HAL_POWERPC
    requires      CYGPKG_HAL_POWERPC_MPC8260
    define_header hal_powerpc_vads.h
    include_dir   cyg/hal
    description   "
        The VADS HAL package provides the support needed to run
        eCos on a Mototola MPC8260 VADS  board."

    compile       hal_diag.c hal_aux.c vads.S

    implements    CYGINT_HAL_DEBUG_GDB_STUBS
# removed by WPD for now
    implements    CYGINT_HAL_DEBUG_GDB_STUBS_BREAK
    implements    CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT
# added by WPD for now

# Note: uncomment this to get old-style debug behaviour
#   implements    CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT_NOT_GUARANTEED

    define_proc {
        puts $::cdl_system_header "#define CYGBLD_HAL_TARGET_H   <pkgconf/hal_powerpc_mpc8260.h>"
        puts $::cdl_system_header "#define CYGBLD_HAL_PLATFORM_H <pkgconf/hal_powerpc_vads.h>"

        puts $::cdl_header "#define HAL_PLATFORM_CPU    \"PowerPC MPC8260\""
        puts $::cdl_header "#define HAL_PLATFORM_BOARD  \"Voyager ADS\""
        puts $::cdl_header "#define HAL_PLATFORM_EXTRA  \"\""
    }

    cdl_component CYG_HAL_STARTUP {
        display       "Startup type"
        flavor        data
        legal_values  {"RAM" "ROM"}
        default_value {"RAM"}
        no_define
        define -file system.h CYG_HAL_STARTUP
        description   "
           This option is used to control where the application program will
           run, either from RAM or ROM (flash) memory.  ROM based applications
           must be self contained, while RAM applications will typically assume
           the existence of a debug environment, such as GDB stubs."

        cdl_option DCSPRI_HAL_VADS_ROM_MLT {
            display       "Memory Layout for ROM Startup"
            flavor        data
            legal_values  {"LOW" "HIGH" "RAM"}
            default_value {"HIGH"}
            description   "

                This option selects which memory layout file should be
                used when configuring the VADS board for ROM startup.
                The LOW option selects the memory layout for an image
                stored at the beginning of the FLASH.  It should be
                used when the (hard reset) IP and boot memory space
                are both mapped to address 0.

                The HIGH option selects the memory layout for an image
                stored in the last Megabyte of FLASH.  It should be
                used when the (hard reset) IP maps the interrupt
                vector base address to 0xFFF00000 and the boot memory
                space to the last 32 Megabytes of FLASH.

                The RAM option is a hack used to place the ROM image
                in RAM in order to simplify the development of a ROM
                monitor by using the existing ROM monitor to load it
                into RAM, but pretend like it is in ROM."
        }

    }

    cdl_option CYGHWR_HAL_POWERPC_DISABLE_MMU {
        display       "DISABLE MMU"
        flavor        bool
        default_value 0
        #        calculated    1
        description   "
            This option will disable the MMU enabled."
    }

    cdl_option CYGHWR_HAL_POWERPC_BOARD_SPEED {
        display          "Development board clock speed (MHz)"
        flavor           data
        legal_values     45 60 66
        default_value    66
        description      "
           The Delphi TigerSHARC-6 board will probably run at either
           45 or 60 MHz.  In the short term, however, we will be using
           an MPC8260ADS board running at 66 MHz.  Select the clock
           speed appropriate for your board so that the system can set
           the serial baud rate correctly, amongst other things."
   }

    # Real-time clock/counter specifics
    cdl_component CYGNUM_HAL_RTC_CONSTANTS {
        display       "Real-time clock constants."
        description   "
            Period is busclock/4/CYGNUM_HAL_RTC_DENOMINATOR.  VERIFY THIS!!!"
        flavor        none
        no_define
    
        cdl_option CYGNUM_HAL_RTC_NUMERATOR {
            display       "Real-time clock numerator"
            flavor        data
            default_value 1000000000
        }
        cdl_option CYGNUM_HAL_RTC_DENOMINATOR {
            display       "Real-time clock denominator"
            flavor        data
            default_value 100
            description   "
              This option selects the number of system clock 'ticks'
              per second.  This rate is sometimes known as the heartbeat rate."
        }
        cdl_option CYGNUM_HAL_RTC_PERIOD {
            display       "Real-time clock period"
            flavor        data
            default_value { (((CYGHWR_HAL_POWERPC_BOARD_SPEED*1000000)/4)/CYGNUM_HAL_RTC_DENOMINATOR) }
        }
    }
    
    cdl_component CYGBLD_GLOBAL_OPTIONS {
        display "Global build options"
        flavor  none
        description   "
            Global build options including control over
            compiler flags, linker flags and choice of toolchain."


        parent  CYGPKG_NONE

        cdl_option CYGBLD_GLOBAL_COMMAND_PREFIX {
            display "Global command prefix"
            flavor  data
            no_define
            default_value { "powerpc-eabi" }
            description "
                This option specifies the command prefix used when
                invoking the build tools."
        }

        cdl_option CYGBLD_GLOBAL_CFLAGS {
            display "Global compiler flags"
            flavor  data
            no_define
            default_value { CYGBLD_GLOBAL_WARNFLAGS . "-msoft-float -mcpu=603e -g -O2 -ffunction-sections -fdata-sections -fno-rtti -fno-exceptions " }
            description   "
                This option controls the global compiler flags which
                are used to compile all packages by
                default. Individual packages may define
                options which override these global flags."
        }

        cdl_option CYGBLD_GLOBAL_LDFLAGS {
            display "Global linker flags"
            flavor  data
            no_define
            default_value { "-msoft-float -mcpu=603e -g -nostdlib -Wl,--gc-sections -Wl,-static" }
            description   "
                This option controls the global linker flags. Individual
                packages may define options which override these global flags."
        }

        cdl_option CYGBLD_BUILD_GDB_STUBS {
            display "Build GDB stub ROM image"
            default_value 0
            requires { CYG_HAL_STARTUP == "ROM" }
            requires CYGSEM_HAL_ROM_MONITOR
            requires CYGBLD_BUILD_COMMON_GDB_STUBS
            requires CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS

            requires CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
# We don't support GDB BREAK (yet)
#            requires ! CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT
# 
            requires CYGDBG_HAL_DEBUG_GDB_THREAD_SUPPORT
            requires ! CYGDBG_HAL_COMMON_INTERRUPTS_SAVE_MINIMUM_CONTEXT
            requires ! CYGDBG_HAL_COMMON_CONTEXT_SAVE_MINIMUM
            no_define
            description "
                This option enables the building of the GDB stubs for the
                board. The common HAL controls takes care of most of the
                build process, but the platform CDL takes care of creating
                an S-Record data file. -- This needs more work"

            make -priority 320 {
                <PREFIX>/bin/gdb_module.bin : <PREFIX>/bin/gdb_module.img
                $(OBJCOPY) -O srec --srec-forceS3 $< $(@:.bin=.s19)
                $(OBJCOPY) -O binary $< $@
#            }
# Changed the .srec extentsion to .txt for ease of downloading with hyperterm
# Changed the .txt extentsion to .s19 for ease of downloading with OCD
        }
    }

    cdl_component CYGPKG_HAL_POWERPC_VADS_OPTIONS {
        display "MPC8260 VADS build options"
        flavor  none
        description   "
            Package specific build options including control over
            compiler flags used only in building this package,
            and details of which tests are built."


        cdl_option CYGPKG_HAL_POWERPC_VADS_CFLAGS_ADD {
            display "Additional compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the VADS HAL. These flags are used in addition
                to the set of global flags."
        }

        cdl_option CYGPKG_HAL_POWERPC_VADS_CFLAGS_REMOVE {
            display "Suppressed compiler flags"
            flavor  data
            no_define
            default_value { "" }
            description   "
                This option modifies the set of compiler flags for
                building the VADS HAL. These flags are removed from
                the set of global flags if present."
        }
    }

    cdl_component CYGHWR_MEMORY_LAYOUT {
        display "Memory layout"
        flavor data
        no_define
        calculated { CYG_HAL_STARTUP == "RAM" ? "powerpc_vads_ram" : \
                                                "powerpc_vads_rom" }

        cdl_option CYGHWR_MEMORY_LAYOUT_LDI {
            display "Memory layout linker script fragment"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_LDI
            calculated { CYG_HAL_STARTUP == "RAM"          ? "<pkgconf/mlt_powerpc_vads_ram.ldi>"     : \
                         DCSPRI_HAL_VADS_ROM_MLT == "LOW"  ? "<pkgconf/mlt_powerpc_vads_romlow.ldi>"  : \
                         DCSPRI_HAL_VADS_ROM_MLT == "HIGH" ? "<pkgconf/mlt_powerpc_vads_romhigh.ldi>" : \
                                                             "<pkgconf/mlt_powerpc_vads_romram.ldi>" }
        }

        cdl_option CYGHWR_MEMORY_LAYOUT_H {
            display "Memory layout header file"
            flavor data
            no_define
            define -file system.h CYGHWR_MEMORY_LAYOUT_H
            calculated { CYG_HAL_STARTUP == "RAM"          ? "<pkgconf/mlt_powerpc_vads_ram.h>"     : \
                         DCSPRI_HAL_VADS_ROM_MLT == "LOW"  ? "<pkgconf/mlt_powerpc_vads_romlow.h>"  : \
                         DCSPRI_HAL_VADS_ROM_MLT == "HIGH" ? "<pkgconf/mlt_powerpc_vads_romhigh.h>" : \
                                                             "<pkgconf/mlt_powerpc_vads_romram.h>" }
        }
    }

    cdl_option CYGSEM_HAL_ROM_MONITOR {
        display       "Behave as a ROM monitor"
        flavor        bool
        default_value 0
        parent        CYGPKG_HAL_ROM_MONITOR
        requires      { CYG_HAL_STARTUP == "ROM" }
        description   "
            Enable this option if this program is to be used as a ROM monitor,
            i.e. applications will be loaded into RAM on the board, and this
            ROM monitor may process exceptions or interrupts generated from the
            application. This enables features such as utilizing a separate
            interrupt stack when exceptions are generated."
    }

    cdl_option CYGSEM_HAL_USE_ROM_MONITOR {
        display       "Work with a ROM monitor"
        flavor        bool
        default_value { (CYG_HAL_STARTUP == "RAM" &&
                        !CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS &&
                        !CYGINT_HAL_USE_ROM_MONITOR_UNSUPPORTED &&
                        !CYGSEM_HAL_POWERPC_COPY_VECTORS) ? 1 : 0 }
        parent        CYGPKG_HAL_ROM_MONITOR
        requires      { CYG_HAL_STARTUP == "RAM" }
        requires      ! CYGSEM_HAL_POWERPC_COPY_VECTORS
        requires      ! CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
        requires      ! CYGINT_HAL_USE_ROM_MONITOR_UNSUPPORTED
        description   "
            Allow coexistence with ROM monitor (CygMon or GDB stubs) by
            only initializing interrupt vectors on startup, thus leaving
            exception handling to the ROM monitor."
    }


    # FIXME: the option above should be adjusted to select between monitor
    #        variants
    cdl_option CYGSEM_HAL_USE_ROM_MONITOR_GDB_stubs {
        parent        CYGPKG_HAL_ROM_MONITOR
        display "Bad CDL workaround"
        calculated 1
        active_if CYGSEM_HAL_USE_ROM_MONITOR
    }


    cdl_component CYGPKG_REDBOOT_HAL_OPTIONS {
        display       "Redboot HAL options"
        flavor        none
        no_define
        parent        CYGPKG_REDBOOT
        active_if     CYGPKG_REDBOOT
        description   "
            This option lists the target's requirements for a valid Redboot
            configuration."

#            compile -library=libextras.a redboot_cmds.c
    
        cdl_option CYGBLD_BUILD_REDBOOT_BIN {
            display       "Build Redboot ROM binary image"
            active_if     CYGBLD_BUILD_REDBOOT
            default_value 1
            no_define
            description "This option enables the conversion of the Redboot ELF
                         image to a binary image suitable for ROM programming.
                         This needs more work."

            make -priority 325 {
                <PREFIX>/bin/redboot.bin : <PREFIX>/bin/redboot.elf
                $(OBJCOPY) --strip-debug $< $(@:.bin=.img) 
                $(OBJCOPY) -O srec $< $(@:.bin=.srec)
                $(OBJCOPY) -O srec --change-address=0x02040000 $< $(@:.bin=.ppcbug)
                $(OBJCOPY) -O binary $< $@
            }
        }
    }
}