hal_powerpc_mpc5xx.cdl

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# ====================================================================
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#      hal_powerpc_mpc5xx.cdl
#
#      PowerPC/MPC5xx variant architectural HAL package configuration data
#
# ====================================================================
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# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      Bob Koninckx
# Contributors:
# Date:           2001-08-12
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_POWERPC_MPC5xx {
    display       "PowerPC 5xx variant HAL"
    parent        CYGPKG_HAL_POWERPC
    hardware
    include_dir   cyg/hal
    define_header hal_powerpc_mpc5xx.h
    description   "
           The PowerPC 5xx variant HAL package provides generic support
           for this processor variant. It is also necessary to
           select a specific target platform HAL package."

    cdl_interface CYGINT_HAL_USE_ROM_MONITOR_UNSUPPORTED {
        display       "ROM monitor configuration is unsupported"
        no_define
    }
    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 (GDB stubs) by
            only initializing interrupt vectors on startup, thus leaving
            exception handling to the ROM monitor."
    }

    #cdl_option CYGSEM_HAL_ENABLE_DCACHE_ON_STARTUP {
    #    calculated 0
    #}

    #cdl_option CYGSEM_HAL_ENABLE_ICACHE_ON_STARTUP {
    #    calculated 0
    #}

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


    # Note: This should be sub-variant specific to reduce memory use.
    define_proc {
        puts $cdl_header "#define CYGHWR_HAL_VSR_TABLE (CYGHWR_HAL_POWERPC_VECTOR_BASE + 0x3f9800)"
        puts $cdl_header "#define CYGHWR_HAL_VIRTUAL_VECTOR_TABLE (CYGHWR_HAL_VSR_TABLE + 0x200)"
    }

    cdl_component CYGPKG_HAL_POWERPC_MPC555 {
        display       "PowerPC 555 microcontroller"
        implements    CYGINT_HAL_POWERPC_VARIANT
        description "
            The PowerPC 555 microcontroller. This is an embedded part that in
            addition to the PowerPC processor core has built in peripherals
            such as memory controllers, DMA controllers, serial ports and
            timers/counters."               

        cdl_option CYGHWR_HAL_POWERPC_FPU {
            display       "Variant FPU support"
            flavor        bool
            default_value 0
            description "
                Enable or disable hardware support for floating point operations."
        }

        cdl_option CYGSEM_HAL_POWERPC_IEEE_FLOATING_POINT {
            display       "Fully IEEE floating point compliant"
            flavor        bool
            default_value 0
            active_if     CYGHWR_HAL_POWERPC_FPU
            requires      CYGHWR_HAL_POWERPC_FPU
            description   "
                Generate a floating point exception when the limits of the
                floating point unit are reached. A software envelope can then
                be used to generate the correct IEEE result for e.g. denormalized
                numbers. If not enabled, the hardware will generate more than acceptable
                values for these situation."
        }

        cdl_option CYGSEM_HAL_POWERPC_MPC5XX_OCD_ENABLE {
            display       "Enable On Chip Debugging (OCD, BDM)"
            flavor        bool
            default_value 0
            description "
                This option forces the startup code to leave the OCD registers
                unchanged. This allows for debugging with a BDM debugger."
        }

        cdl_option CYGHWR_HAL_POWERPC_MPC5XX_IFLASH_ENABLE {
            display       "Enable internal flash"
            flavor        bool
            default_value 0
            description "
                Enable or disable the internal flash on the MPC5xx micro."
        }

        cdl_option CYGSEM_HAL_POWERPC_MPC5XX_IFLASH_DUAL_MAP {
            display       "Dual mapping of the internal flash"
            default_value 1
            active_if     !CYGHWR_HAL_POWERPC_MPC5XX_IFLASH_ENABLE 
            requires      !CYGHWR_HAL_POWERPC_MPC5XX_IFLASH_ENABLE 
            description "
                This option allows to re-map the internal flash array to external RAM
                memory."
        }

        cdl_option CYGHWR_HAL_POWERPC_DISABLE_MMU {
            display       "Disable Memory Management Unit (MMU)"
            calculated    1
            description "
                The MPC5xx does not have an MMU, there is no use in enabling it."
        }

        cdl_option CYGSEM_HAL_POWERPC_MPC5XX_IMB3_ARBITER {
            display       "IMB3 arbitration ISR"
            flavor        bool
            default_value 1
            description "
                The MPC5XX maps all IMB3 interrupt levels above 7 to SIU interrupt
                level 7. If more than one IMB3 module is used at an interrupt level
                higher than 7, interrupt arbiters must be chained on this level. This
                option allows to chain multiple interrupt arbiters on SIU level 7.
                This can be done using the functions hal_mpc5xx_install_imb3_arbiter
                and hal_mpc5xx_remove_imb3_arbiter"
        }