uclinux_v2_1_0.tcl

uclinux在fpga上的移植时

#     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
#     SOLELY FOR USE IN DEVELOPING PROGRAMS AND SOLUTIONS FOR
#     XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION
#     AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION
#     OR STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS
#     IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
#     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
#     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
#     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
#     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
#     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
#     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
#     FOR A PARTICULAR PURPOSE.
#     
#     (c) Copyright 2004 Xilinx, Inc.
#     All rights reserved.

# Known limitations:



# Globals
set drvlist [list]
array set periph_count {}
array set override_array {}

proc uclinux_drc {os_handle} {
    puts "\#--------------------------------------"
    puts "\# uClinux BSP DRC...!"
    puts "\#--------------------------------------"
}

proc process_core_override_list {os_handle} {

	global override_array

	# Make sure override_array is empty on entry to this function
	array unset override_array
	array set override_array {}
	global override_array
	
	puts "Hello from process_core_override"
	# Was a core_overrides parameter specified in the OS section?
	set overrides [xget_sw_parameter_value $os_handle "periph_type_overrides"]

	if {[string match $overrides ""]} {
		return
	}

	puts "Parsing override string:$overrides"

	# Now parse this string, saving results into a global array
	foreach override $overrides {
		set instance [string toupper [lindex $override 0]]
		set new_type [string toupper [lindex $override 1]]
		puts "Overriding $instance to $new_type"
		set override_array($instance) $new_type
	}
}

proc generate {os_handle} {
    variable drvlist
    puts "\#--------------------------------------"
    puts "\# uClinux BSP generate..."
    puts "\#--------------------------------------"    
    
    # open the config file
    set config_file_name "auto-config.in"
    set config_file [open $config_file_name w]
    
    # print the xilinx header
    #set desc "uClinux Configuration File"
    xprint_header $config_file 
    puts $config_file ""
    
    # get software processor handle
    # This call returns the current processor handle for which libgen
    # algorithm is being run
    set proc_handle [xget_libgen_proc_handle]

    # output memory configuration data
    do_memory_setup $config_file $os_handle "MAIN_MEMORY" CONFIG_XILINX_ERAM
    do_memory_setup $config_file $os_handle "FLASH_MEMORY" CONFIG_XILINX_FLASH
    do_memory_setup $config_file $os_handle "LMB_MEMORY" CONFIG_XILINX_LMB

    process_core_override_list $os_handle

    # print processor related params
    xprint_processor_params $config_file $proc_handle
    
    # Get list of drivers of peripherals connected to the processor
    set drvlist [xget_handle $proc_handle "DRIVER" "*"]
    puts "drvlist : $drvlist"

    # print the device params
    xprint_device_params $config_file

    # now duplicate much of the stuff from the standalone BSP - so
    # we can build the bootloader in-place

    set need_config_file "false"

    # Copy over the right set of files as src based on processor type
    set sw_proc_handle [xget_libgen_proc_handle]
    set hw_proc_handle [xget_handle $sw_proc_handle "IPINST"]

    set proctype [xget_value $hw_proc_handle "OPTION" "IPNAME"]

    set mbsrcdir "./src/microblaze"
    set ppcsrcdir "./src/ppc405"

    # proctype should be "microblaze", "ppc405" or "ppc405_virtex4" 
    switch $proctype {
        "microblaze" {
            set procver [xget_value $hw_proc_handle "PARAMETER" "HW_VER"]
            foreach entry [glob -nocomplain [file join $mbsrcdir *]] {
                if { [string first "Makefile_old" $entry] != -1 } {
                    if { [string compare -nocase $procver "3.00.a"] } {         ;# Copy over Makefile_old only for non- v3.00.a cores
                        file copy -force $entry [file join "." "src" "Makefile"]
                    }
                } elseif {[string first "Makefile_new" $entry] != -1} {
                    if {![string compare -nocase $procver "3.00.a"] } {         ;# Copy over Makefile_new only for v3.00.a
                        file copy -force $entry [file join "." "src" "Makefile"]
                    }
                } else {
                    if { [string first "exception" $entry] == -1 || ![string compare -nocase $procver "3.00.a"] } {
                        # Copy over only files that are not related to exception handling. All such files have exception in their names
                        file copy -force $entry "./src/"
                    }
                }
            }
            set need_config_file "true"
        }
        "ppc405" -
        "ppc405_virtex4" {
            set procver [xget_value $hw_proc_handle "PARAMETER" "HW_VER"]
            foreach entry [glob -nocomplain [file join $ppcsrcdir *]] {
                if { [string first "exception" $entry] == -1 } {
                    # Copy over only files that are not related to exception handling. All such files have exception in their names
                    file copy -force $entry "./src/"
                }
            }
            set need_config_file "true"
        }
        "default" {puts"unsupported processor type $proctype\n"}
    }

    # Remove microblaze and ppc405 directories
    file delete -force $mbsrcdir
    file delete -force $ppcsrcdir

    # handle the stdout and stdin params, for the bootloader
    xhandle_stdout $os_handle
    xhandle_stdin $os_handle
    
    # close the file...
    close $config_file
}

##################################################
# procedure post_generate
# This copies the auto-config.in file into the kernel tree
# if required
##################################################

proc post_generate {lib_handle} {
    set config_file_name "auto-config.in"

    set value [xget_value $lib_handle "PARAMETER" TARGET_DIR]
    puts "TARGET_DIR : $value"

    if {$value != ""} {
        if {[file isdirectory $value] == 0} {
            exec bash -c "mkdir -p $value"
        }
        exec bash -c "cp $config_file_name $value"
    }
}

proc do_manual_memory_setup {config_file os_handle param_prefix config_prefix} {
	set proc_handle [xget_libgen_proc_handle]

	# Get manually specified start address and size
	set mem_start [xget_sw_parameter_value $os_handle "${param_prefix}_START"]
	set mem_size [xget_sw_parameter_value $os_handle "${param_prefix}_SIZE"]

	# Did we get valid start and size?
	if {$mem_start==-1 || [string match $mem_start ""] || $mem_size==0 || [string match $mem_size ""]} {
		# Format warning/error msg
		set msg "No ${param_prefix} peripheral or START/SIZE parameters specified"
		# For main memory, this is fatal
		if { [string match $param_prefix "MAIN_MEMORY"] } {
			error "ERROR :: ${msg}"
		} else {
			puts "WARNING :: ${msg}"
		}
		return
	} 

	# Format start_addr and size as hex strings
	set mem_start [format "0x%08x" $mem_start]
	set mem_size [format "0x%08x" $mem_size]
	
	# Generate config file entries
	puts $config_file "\# $param_prefix Settings"
	puts $config_file "define_hex ${config_prefix}_START $mem_start"
	puts $config_file "define_hex ${config_prefix}_SIZE $mem_size"
	puts $config_file ""
}

proc do_memory_setup {config_file os_handle param_prefix config_prefix} {
	# print system memory
	set proc_handle [xget_libgen_proc_handle]
	
	# Get memory peripheral instance
	set mem [xget_sw_parameter_value $os_handle $param_prefix]

	# Get any overridden start address and size
	set mem_start_override [xget_sw_parameter_value $os_handle "${param_prefix}_START"]
	set mem_size_override [xget_sw_parameter_value $os_handle "${param_prefix}_SIZE"]
	# Did MSS file specify a memory peripheral instance?
	if {[string match "" $mem] || [string match "none" $mem]} {
		# if not, see if START/SIZE params were given
		do_manual_memory_setup $config_file $os_handle $param_prefix $config_prefix
		return
	}

	set mem_bank [xget_sw_parameter_value $os_handle "${param_prefix}_BANK"]
	set mem_handle [xget_sw_ipinst_handle_from_processor $proc_handle $mem]

	# Was it a valid instance?
	if {[string match $mem_handle ""]} {
		error "ERROR :: $param_prefix peripheral $mem does not exist"
	}

	# Check for banked vs direct memory core
	if {$mem_bank == -1 || [string match $mem_bank ""]} {
		set base_param_name "C_BASEADDR" 
		set high_param_name "C_HIGHADDR"
	} else {
		set base_param_name [format "C_MEM%i_BASEADDR" $mem_bank]
		set high_param_name [format "C_MEM%i_HIGHADDR" $mem_bank]
	}

	# Process memory core parameters
	set mem_start [xget_sw_parameter_value $mem_handle $base_param_name]
	set mem_end [xget_sw_parameter_value $mem_handle $high_param_name]

	# remove any embedded underscore characters
	set mem_start [string map {"_" ""} $mem_start]
	set mem_end [string map {"_" ""} $mem_end]

	# Manual override of memory region start
	if {$mem_start_override==-1 || [string match $mem_start_override ""]} {
	} else {
		set mem_start $mem_start_override
	}

	# Manual override of memory region size
	if {$mem_size_override==0 || [string match $mem_size_override ""]} {
		set mem_size [expr $mem_end - $mem_start + 1]
	} else {
		set mem_size $mem_size_override
	}

	# Manual override of memory region offset relative to start
	set mem_offset_override [xget_sw_parameter_value $os_handle "${param_prefix}_OFFSET"]
	if {$mem_offset_override==0 || [string match $mem_offset_override ""]} {
        } else {
		set mem_start [expr $mem_start + $mem_offset_override]
	}

	# Format start_addr and size as hex strings
	set mem_start [format "0x%08x" $mem_start]
	set mem_size [format "0x%08x" $mem_size]
	
	# Generate config file entries
	puts $config_file "\# $param_prefix Settings"
	puts $config_file "define_hex ${config_prefix}_START $mem_start"
	puts $config_file "define_hex ${config_prefix}_SIZE $mem_size"
	puts $config_file ""
} 

proc xprint_processor_params {config_file proc_handle} {
    
    # print system clock
    set sys_clock [xget_sw_parameter_value $proc_handle "CORE_CLOCK_FREQ_HZ"]
    puts $config_file "\# System Clock Frequency"
    puts $config_file "define_int CONFIG_XILINX_CPU_CLOCK_FREQ $sys_clock"
    puts $config_file ""
    
    # print microblaze params
    set hwproc_handle [xget_handle $proc_handle "IPINST"]
    set args [xget_hw_parameter_handle $hwproc_handle "*"]

    set proctype [xget_value $hwproc_handle "OPTION" "IPNAME"]