hal_mips_tx39.cdl

eCos1.31版

# ====================================================================
#
#      hal_mips_tx39.cdl
#
#      MIPS/TX39 variant architectural HAL package configuration data
#
# ====================================================================
#####COPYRIGHTBEGIN####
#                                                                          
# -------------------------------------------                              
# The contents of this file are subject to the Red Hat eCos Public License 
# Version 1.1 (the "License"); you may not use this file except in         
# compliance with the License.  You may obtain a copy of the License at    
# http://www.redhat.com/                                                   
#                                                                          
# Software distributed under the License is distributed on an "AS IS"      
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
# License for the specific language governing rights and limitations under 
# the License.                                                             
#                                                                          
# The Original Code is eCos - Embedded Configurable Operating System,      
# released September 30, 1998.                                             
#                                                                          
# The Initial Developer of the Original Code is Red Hat.                   
# Portions created by Red Hat are                                          
# Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
# All Rights Reserved.                                                     
# -------------------------------------------                              
#                                                                          
#####COPYRIGHTEND####
# ====================================================================
######DESCRIPTIONBEGIN####
#
# Author(s):      jskov
# Original data:  bartv, nickg
# Contributors:
# Date:           1999-11-02
#
#####DESCRIPTIONEND####
#
# ====================================================================

cdl_package CYGPKG_HAL_MIPS_TX39 {
    display       "TX39 variant"
    parent        CYGPKG_HAL_MIPS
    hardware
    include_dir   cyg/hal
    define_header hal_mips_tx39.h
    description   "
           The TX39 architecture HAL package provides generic support
           for this processor architecture. It is also necessary to
           select a specific target platform HAL package."

    cdl_component CYGPKG_HAL_MIPS_TX3904 {
        display       "TX3904 microprocessor"
        default_value 1
        implements    CYGINT_HAL_MIPS_VARIANT
        description "
            The TMPR3904F microprocessor. This is an embedded part that in
            addition to the TX39 processor core has built in peripherals
            such as memory controllers, DMA controllers, serial ports and
            timers/counters."               

        cdl_option CYGHWR_HAL_MIPS_FPU {
            display    "Variant FPU support"
            calculated 0
        }

        cdl_option CYGPKG_HAL_MIPS_MSBFIRST {
            display    "CPU Variant big-endian"
            calculated 1
        }
    }

    define_proc {
        puts $::cdl_header "#include <pkgconf/hal_mips.h>"
    }

    cdl_option CYGHWR_HAL_MIPS_CPU_FREQ_ACTUAL {
        display       "Actual CPU frequency"
        calculated    (CYGHWR_HAL_MIPS_CPU_FREQ == 50 ? 49152000 :   \
                       CYGHWR_HAL_MIPS_CPU_FREQ == 66 ? 66355200 : 0 )
        flavor data
        legal_values  { 49152000 66355200 }
        description "
            Only the frequencies 50MHz and 66MHz are supported for this
            CPU variant."
    } 

    cdl_option CYGHWR_HAL_MIPS_TX3904_TRR_REQUIRES_SYNC {
        display       "Workaround for TX3904 Timer TRR register problem"
        flavor        bool
        default_value { (CYGHWR_HAL_MIPS_CPU_FREQ == 50) ? 1 : 0 }
        description "
            Early versions of the TX3904 CPU have a bug such that if
            coprocessor 0 (CP0) is busy outputting write buffer data, reads
            of the clock would return bad values. This option enables a
            workaround by not reading the clock until the write buffer
            is empty."
    } 

    compile       hal_diag.c var_misc.c variant.S

    make {
        <PREFIX>/lib/target.ld: <PACKAGE>/src/mips_tx39.ld
        $(CC) -E -P -Wp,-MD,target.tmp -DEXTRAS=1 -xc $(INCLUDE_PATH) $(CFLAGS) -o $@ $<
        @echo $@ ": \\" > $(notdir $@).deps
        @tail +2 target.tmp >> $(notdir $@).deps
        @echo >> $(notdir $@).deps
        @rm target.tmp
    }

    cdl_option CYGBLD_LINKER_SCRIPT {
        display "Linker script"
        flavor data
	no_define
        calculated  { "src/mips_tx39.ld" }
    }

}