Subversion Repositories openrisc_2011-10-31

# ====================================================================
#
#      hal_openrisc_orp.cdl
#
#      OpenRISC Reference Platform (ORP) HAL package configuration data
#
# ====================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, 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.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.
##
## This exception does not invalidate any other reasons why a work based on
## this file might be covered by the GNU General Public License.
##
## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
## at http://sources.redhat.com/ecos/ecos-license/
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      sfurman
# Contributors:
# Date:           2003-01-20
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_OPENRISC_ORP {
    display  "OpenRISC Reference Platform"
    parent        CYGPKG_HAL_OPENRISC
    include_dir   cyg/hal
    hardware
    description   "
           The ORP HAL package should be used when targetting the
           OpenRISC Reference Platform."

    compile       hal_diag.c hal_aux.c

    implements    CYGINT_HAL_DEBUG_GDB_STUBS
    implements    CYGINT_HAL_DEBUG_GDB_STUBS_BREAK
    implements    CYGINT_HAL_VIRTUAL_VECTOR_SUPPORT
    implements    CYGINT_HAL_VIRTUAL_VECTOR_COMM_BAUD_SUPPORT

    define_proc {
        puts $::cdl_system_header "#define CYGBLD_HAL_TARGET_H   <pkgconf/hal_openrisc.h>"
        puts $::cdl_system_header "#define CYGBLD_HAL_PLATFORM_H <pkgconf/hal_openrisc_orp.h>"
    }

    cdl_component CYG_HAL_STARTUP {
        display       "Startup type"
        flavor        data
        legal_values  {"RAM" "ROM"}
        default_value {"ROM"}
        no_define
        define -file system.h CYG_HAL_STARTUP
        description   "
            Selects whether code initially runs from ROM or RAM.  In the case of ROM startup,
            it's possible for the code to be copied into RAM and executed there."
    }

    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD {
        display       "Diagnostic serial port baud rate"
        flavor        data
        legal_values  9600 19200 38400 57600 115200 230400 460800 921600
        default_value 115200
        description   "
            This option selects the baud rate used for the diagnostic console.
            Note: this should match the value chosen for the GDB port if the
            diagnostic and GDB port are the same.
            Note: very high baud rates are useful during simulation."
    }

    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_BAUD {
        display       "GDB serial port baud rate"
        flavor        data
        legal_values  9600 19200 38400 57600 115200 230400 460800 921600
        default_value 115200
        description   "
            This option controls the baud rate used for the GDB connection.
            Note: very high baud rates are useful during simulation."
    }

    # Real-time clock/counter specifics
    cdl_component CYGNUM_HAL_RTC_CONSTANTS {
        display       "Real-time clock constants."
        flavor        none
    
        cdl_option CYGNUM_HAL_RTC_NUMERATOR {
            display       "Real-time clock numerator"
            flavor        data
            calculated    1000000000
        }
        cdl_option CYGNUM_HAL_RTC_DENOMINATOR {
            display       "Real-time clock denominator"
            flavor        data
            calculated    100
        }
        cdl_option CYGNUM_HAL_RTC_PERIOD {
            display       "Real-time clock period"
            flavor        data
# sfurman: Probably ought be "calculated" - not "default_value"
# However, it is handy to override this value during simulator-based testing
            default_value {CYGHWR_HAL_OPENRISC_CPU_FREQ * 1000000 / CYGNUM_HAL_RTC_DENOMINATOR}
            description   "
                The tick timer facility is used
                to drive the eCos kernel RTC. The count register
                increments at the CPU clock speed.  By default, 100 Hz"
        }
    }

    cdl_option CYGBLD_BUILD_GDB_STUBS {
        display "Build GDB stub ROM image"
        default_value 0
        parent CYGBLD_GLOBAL_OPTIONS
        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
        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 final conversion from ELF image to
                binary data is handled by the platform CDL, allowing
                relocation of the data if necessary."

        make -priority 320 {
            <PREFIX>/bin/gdb_module.bin : <PREFIX>/bin/gdb_module.img
            $(OBJCOPY) -O binary $< $@
        }
    }


    cdl_option CYGNUM_HAL_BREAKPOINT_LIST_SIZE {
        display       "Number of breakpoints supported by the HAL."
        flavor        data
        default_value 25
        description   "
            This option determines the number of breakpoints supported by the HAL."
    }

    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS {
        display      "Number of communication channels on the board"
        flavor       data
        default_value  1
    }

    cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL {
        display          "Debug serial port"
        active_if        CYGPRI_HAL_VIRTUAL_VECTOR_DEBUG_CHANNEL_CONFIGURABLE
        flavor data
        legal_values     0 to CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS-1
        default_value    0
        description      "
           The ORP platform has at least one serial port, but it can potentially have several.
           This option chooses which port will be used to connect to a host
           running GDB."
    }
 
     cdl_option CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL {
        display          "Diagnostic serial port"
        active_if        CYGPRI_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_CONFIGURABLE
        flavor data
        legal_values     0 to CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS-1
        default_value    0
        description      "
           The ORP platform has at least one serial port, but it can potentially have several.
           This option chooses which port will be used for diagnostic output."
     }

    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 { "or32-elf" }
            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 { "-msoft-float -Wall -Wpointer-arith -Wstrict-prototypes -Winline -Wundef -Woverloaded-virtual -g -O2 -fno-omit-frame-pointer -fno-rtti -fno-exceptions -fvtable-gc -finit-priority" }
            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 -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_component CYGHWR_MEMORY_LAYOUT {
        display "Memory layout"
        flavor data
        no_define
        calculated { CYG_HAL_STARTUP == "RAM" ? "openrisc_orp_ram" : \
                                                "openrisc_orp_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_openrisc_orp_ram.ldi>" : \
                                                    "<pkgconf/mlt_openrisc_orp_rom.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_openrisc_orp_ram.h>" : \
                                                    "<pkgconf/mlt_openrisc_orp_rom.h>" }
        }
    }

    cdl_option CYGSEM_HAL_USE_ROM_MONITOR {
        display       "Work with a ROM monitor"
        flavor        booldata
        legal_values  { "Generic" "CygMon" "GDB_stubs" }
        default_value { CYG_HAL_STARTUP == "RAM" ? "CygMon" : 0 }
        parent        CYGPKG_HAL_ROM_MONITOR
        requires      { CYG_HAL_STARTUP == "RAM" }
        description   "
            Support can be enabled for three different varieties of ROM monitor.
            This support changes various eCos semantics such as the encoding
            of diagnostic output, or the overriding of hardware interrupt
            vectors.
            Firstly there is \"Generic\" support which prevents the HAL
            from overriding the hardware vectors that it does not use, to
            instead allow an installed ROM monitor to handle them. This is
            the most basic support which is likely to be common to most
            implementations of ROM monitor.
            \"CygMon\" provides support for the Cygnus ROM Monitor.
            And finally, \"GDB_stubs\" provides support when GDB stubs are
            included in the ROM monitor or boot ROM."
    }

    cdl_option CYGSEM_HAL_ROM_MONITOR {
        display       "Behave as a ROM monitor"
        flavor        bool
        default_value 1
        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_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."

        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."
    
            compile -library=libextras.a
    
            make -priority 325 {
                <PREFIX>/bin/redboot.srec : <PREFIX>/bin/redboot.elf
                $(OBJCOPY) --strip-all $< $(@:.srec=.img)
                $(OBJCOPY) -O srec $< $@
            }
        }
    }

    define_proc {
        puts $cdl_header "#define CYGHWR_HAL_VSR_TABLE    0"
        puts $cdl_header "#define CYGHWR_HAL_VIRTUAL_VECTOR_TABLE 0xF00"
    }
}