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# ====================================================================
#
#      hal_sh_sh4.cdl
#
#      SH4 architectural 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.
##
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##
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## or inline functions from this file, or you compile this file and link it
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## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      jskov
# Original data:  jskov
# Contributors:
# Date:           1999-10-29
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_SH_SH4 {
    display       "SH4 architecture"
    parent        CYGPKG_HAL_SH

    hardware
    include_dir   cyg/hal
    define_header hal_sh_sh4.h
    description   "
        The SH4 (SuperH 4) architecture HAL package provides generic
        support for this processor architecture. It is also
        necessary to select a specific target platform HAL
        package."

    compile        sh4_scif.c var_misc.c variant.S

    define_proc {
        puts $::cdl_system_header "#define CYGBLD_HAL_VARIANT_H   <pkgconf/hal_sh_sh4.h>"
        puts $::cdl_header "#define CYGBLD_HAL_VAR_EXCEPTION_MODEL_H   <cyg/hal/hal_var_bank.h>"
        puts $::cdl_header "#define CYGBLD_HAL_VAR_EXCEPTION_MODEL_INC <cyg/hal/hal_var_bank.inc>"
        puts $::cdl_header "#define CYGBLD_HAL_VAR_INTR_MODEL_H   <cyg/hal/hal_intr_excevt.h>"
    }

    # The "-o file" is a workaround for CR100958 - without it the
    # output file would end up in the source directory under CygWin.
    # n.b. grep does not behave itself under win32
    make -priority 1 {
        <PREFIX>/include/cyg/hal/sh4_offsets.inc : <PACKAGE>/src/var_mk_defs.c
        $(CC) $(CFLAGS) $(INCLUDE_PATH) -Wp,-MD,sh4_offsets.tmp -o var_mk_defs.tmp -S $<
        fgrep .equ var_mk_defs.tmp | sed s/#// > $@
        @echo $@ ": \\" > $(notdir $@).deps
        @tail +2 sh4_offsets.tmp >> $(notdir $@).deps
        @echo >> $(notdir $@).deps
        @rm sh4_offsets.tmp var_mk_defs.tmp
    }

    # CPU variant supported
    cdl_component CYGPKG_HAL_SH_7750 {
        display       "SH 7750 microprocessor"
        parent        CYGPKG_HAL_SH_CPU
        implements    CYGINT_HAL_SH_VARIANT
        implements    CYGINT_HAL_SH_CPG_T1
        requires      ! CYGHWR_HAL_SH_CACHE_ENABLE
        default_value 1
        no_define
        define        -file=system.h CYGPKG_HAL_SH_7750
        description "
            The SH4 7750 microprocessor. This is an embedded part that in
            addition to the SH4 processor core has built in peripherals
            such as memory controllers, DMA controllers, serial ports and
            timers/counters."               
        define_proc {
            puts $cdl_system_header "#define CYGBLD_HAL_CPU_MODULES_H <cyg/hal/mod_7750.h>"
        }
    }

    cdl_component CYGPKG_HAL_SH_7751 {
        display       "SH 7751 microprocessor"
        parent        CYGPKG_HAL_SH_CPU
        implements    CYGINT_HAL_SH_VARIANT
        implements    CYGINT_HAL_SH_CPG_T1
        default_value 0
        no_define
        define        -file=system.h CYGPKG_HAL_SH_7751
        compile       pcic.c
        description "
            The SH4 7751 microprocessor. This is an embedded part that in
            addition to the SH4 processor core has built in peripherals
            such as memory controllers, DMA controllers, serial ports and
            timers/counters."               
        define_proc {
            puts $cdl_system_header "#define CYGBLD_HAL_CPU_MODULES_H <cyg/hal/mod_7751.h>"
        }
    }

    cdl_component CYGHWR_HAL_SH_CLOCK_SETTINGS {
        display          "SH on-chip generic clock controls"
        description      "
            The various clocks used by the system are controlled by
            these options, some of which are derived from platform
            settings."
        flavor        none
        no_define

        cdl_interface CYGINT_HAL_SH_CPG_T1 {
            display     "Clock pulse generator type 1"
        }

        cdl_option CYGHWR_HAL_SH_TMU_PRESCALE_0 {
            display       "TMU counter 0 prescaling"
            description   "
                The peripheral clock is driving the counter used for
                the real-time clock, prescaled by this factor."
            flavor        data
            legal_values  { 4 16 64 256 }
            default_value 4
        }

        cdl_option CYGHWR_HAL_SH_RTC_PRESCALE {
            display       "eCos RTC prescaling"
            flavor        data
            calculated    CYGHWR_HAL_SH_TMU_PRESCALE_0
        }

        cdl_option CYGHWR_HAL_SH_CLOCK_CKIO {
            display    "CKIO clock"
            no_define
            flavor     data
            calculated { CYGHWR_HAL_SH_PLL2_OUTPUT }
        }

        cdl_option CYGHWR_HAL_SH_PLL1_OUTPUT {
            display    "The clock output from PLL1"
            no_define
            flavor     data
            calculated { CYGHWR_HAL_SH_DIVIDER1_OUTPUT * CYGHWR_HAL_SH_OOC_PLL_1 }
        }

        cdl_option CYGHWR_HAL_SH_DIVIDER1_OUTPUT {
            display    "The clock output from divider 1"
            no_define
            flavor     data
            # DIV1 output is either 1 or 1/2 XTAL
            calculated { (CYGHWR_HAL_SH_OOC_DIVIDER_1 == 1)
                           ? CYGHWR_HAL_SH_OOC_XTAL
                           : CYGHWR_HAL_SH_OOC_XTAL / 2 }
        }

        cdl_option CYGHWR_HAL_SH_PROCESSOR_SPEED {
            display          "Processor clock speed (MHz)"
            flavor           data
            calculated       { CYGHWR_HAL_SH_PLL1_OUTPUT / CYGHWR_HAL_SH_OOC_DIVIDER_IFC }
            description      "
                The peripheral speed is computed from the PLL2 output clock
                speed and the IFC divider settings."
        }

        cdl_option CYGHWR_HAL_SH_BOARD_SPEED {
            display          "Platform bus clock speed (MHz)"
            flavor           data
            calculated       { CYGHWR_HAL_SH_PLL1_OUTPUT / CYGHWR_HAL_SH_OOC_DIVIDER_BFC }
            description      "
                The peripheral speed is computed from the PLL2 output clock
                speed and the BFC divider settings."
        }

        cdl_option CYGHWR_HAL_SH_ONCHIP_PERIPHERAL_SPEED {
            display          "Processor on-chip peripheral clock speed (MHz)"
            flavor           data
            calculated       { CYGHWR_HAL_SH_PLL1_OUTPUT / CYGHWR_HAL_SH_OOC_DIVIDER_PFC }
            description      "
                The peripheral speed is computed from the PLL2 output clock
                speed and the PFC divider settings."
        }
    }

    cdl_option CYGNUM_HAL_SH_SH4_SCIF_BAUD_RATE {
        display          "SCIF serial ports default baud rate"
        flavor data
        legal_values     { 4800 9600 14400 19200 38400 57600 115200 }
        default_value    { CYGNUM_HAL_SH_SH4_SCIF_BAUD_RATE_DEFAULT ? \
                           CYGNUM_HAL_SH_SH4_SCIF_BAUD_RATE_DEFAULT : 38400 }
        description      "
           This controls the default baud rate used for communicating
           with GDB / displaying diagnostic output."
    }

    cdl_component CYGPKG_HAL_SH_INTERRUPT {
        display          "Interrupt controls"
        flavor     none
        no_define
        description      "
            Initial interrupt settings can be specified using these option."

        cdl_option CYGHWR_HAL_SH_IRQ_USE_IRQLVL {
            display          "Use IRL0-3 pins as IRL input"
            default_value    0
            description      "
                It is possible for the IRL0-3 pins to be used as IRL
                inputs by enabling this option."
        }
    }

    # Cache settings
    cdl_option CYGHWR_HAL_SH_CACHE_MODE_P0 {
        display       "Select cache mode set for P0/U0/P3 at startup"
        parent        CYGPKG_HAL_SH_CACHE
        default_value { "WRITE_BACK" }
        legal_values  { "WRITE_BACK" "WRITE_THROUGH" }
        flavor        data
        description "
            Controls what cache mode the cache should be put in at
            startup for areas P0, U0 and P3. Write-back mode improves
            performance by letting dirty data to be kept in the
            cache for a period of time, allowing mutiple writes to
            the same cache line to be written back to memory in
            one memory transaction. In Write-through mode, each
            individual write will cause a memory transaction."
    }
    
    cdl_option CYGHWR_HAL_SH_CACHE_MODE_P1 {
        display       "Select cache mode set for P1 at startup"
        parent        CYGPKG_HAL_SH_CACHE
        default_value { "WRITE_BACK" }
        legal_values  { "WRITE_BACK" "WRITE_THROUGH" }
        flavor        data
        description "
            Controls what cache mode the cache should be put in at
            startup for area P1. Write-back mode improves
            performance by letting dirty data to be kept in the
            cache for a period of time, allowing mutiple writes to
            the same cache line to be written back to memory in
            one memory transaction. In Write-through mode, each
            individual write will cause a memory transaction."
    }
}