; -------------------------------------------------------------------------------- ; @Title: Linux Demo for TRACE32 OS Awareness on the MEP-6410 Board ; @Description: ; This batchfile demonstrates the use of the OS Awareness for Linux ; The example is generated for the MDS M6R2 (MEP-6410) board using an ICD. ; It will NOT run on any other board, but may be used as a template ; for others. ; Linux is downloaded to the board via ICD. ; @Keywords: awareness, M6R2, MDS ; @Author: DIE ; @Board: MEP-6410 ; @Chip: S3C6410 ; @Copyright: (C) 1989-2019 Lauterbach GmbH, licensed for use with TRACE32(R) only ; -------------------------------------------------------------------------------- ; $Id: mep6410_linux.cmm 15223 2019-11-05 16:29:45Z bschroefel $ ; Starting Linux example with TRACE32: ; - Connect NULL modem cable to UART0 ; - 115200 baud, 8/N/1, no(!) handshake ; - Start TRACE32 ; - Switch on the board ; - TRACE32: "do linux" ; - terminal: start "hello" LOCAL &ka_path &awareness SCREEN.ALways ; permanent update for internal terminal window ; screen.on ; if you use external terminal ; Debugger Reset WinPAGE.RESet AREA.RESet WinPOS 0. 25. 75. 8. 0. 0. W000 AREA.view PRINT "resetting..." RESet ; Initializing Debugger PRINT "initializing..." SYStem.RESet SYStem.CPU ARM1176JZF ; deprecated SYStem.MultiCore IRPRE 4 ; deprecated SYStem.MultiCore DRPRE 1 ; deprecated SYStem.MultiCore ETBIRPOST 5 ; deprecated SYStem.MultiCore ETBDRPOST 1 SYStem.CONFIG.IRPRE 4 SYStem.CONFIG.DRPRE 1 SYStem.CONFIG.ETBIRPOST 5 SYStem.CONFIG.ETBDRPOST 1 SYStem.JtagClock RTCK SYStem.Option ResBreak OFF ; hardware dependent (see manual) SYStem.Option PWRDWN ON ; hardware dependent (see manual) SYStem.Option DACR ON ; give Debugger global write permissions TrOnchip.Set DABORT OFF ; used by Linux for page miss! TrOnchip.Set PABORT OFF ; used by Linux for page miss! TrOnchip.Set UNDEF OFF ; my be used by Linux for FPU detection SYStem.Option MMUSPACES ON ; enable space ids to virtual addresses SYStem.Up SETUP.IMASKASM ON ; lock interrupts while single stepping ; Open serial terminal window on COM1 DO ~~/demo/etc/terminal/serial/term.cmm COM1 115200. ; Target Setup: initialize DRAM controller and peripherals ; Either let the boot monitor setup the board Go.direct PRINT "target setup..." WAIT 2.s Break.direct ; or use the debugger to initialize it ;print "target setup..." ;do init_m6r2 ; do basic setup ; Load the Linux kernel ; If you are using a flashed kernel, or if you're loading ; your kernel via TFTP, use the boot monitor to do so. ; Use the next lines (loading the kernel, setting registers ; and boot parameters) only to load the kernel into ; RAM using the debugger. ; vmlinux starts physically at RAM start (=0x50000000) + 0x8000 ; We have to adjust it from the virtual start address at the label ; "stext" from the System.map ("nm vmlinux | sort") ; i.e.: Data.LOAD.Elf vmlinux - PRINT "loading Linux kernel..." Data.LOAD.Elf vmlinux 0x50008000-0xc0008000 /NosYmbol Register.RESet ; Set PC on start address of image Register.Set PC 0x50008000 ; Set machine type in R1; see arch/arm/tools/mach-types Register.Set R1 2001. ; MEP6410 ; Set parameter tags for linux boot DO atag-list ; Loading initial ram disk (initrd) ; Use the next lines only, if you want to use an initrd, ; and if you want to download this with the debugger. ; Load rom file system image into ram disk ; The load address is either hardcoded in arch/arm//arch.c, ; or must be passed by a boot parameter, or as command line option PRINT "loading ram disk..." Data.LOAD.Binary ramdisk-mep6410-32M.gz 0x50800000 /NoClear /NosYmbol ; Load the Linux kernel symbols into the debugger ; use /strippart and /path to map source paths, if necessary PRINT "loading Linux kernel symbols..." Data.LOAD.Elf vmlinux /NoCODE /StripPART "/mnt/develop" /PATH "S:\" ; Open a Code Window -- we like to see something WinPOS 0. 0. 75. 20. List.auto Go.direct start_kernel WAIT !STATE.RUN() ; Declare the MMU format to the debugger ; - table format is "LINUX" ; - table base address is at label "swapper_pg_dir" ; - kernel address translation ; Map the virtual kernel symbols to physical addresses to give ; the debugger access to it before CPU MMU is initialized PRINT "initializing debugger MMU..." MMU.FORMAT LINUX swapper_pg_dir 0xc0000000--0xc7ffffff 0x50000000 ; prepare debugger translation TRANSlation.COMMON 0xc0000000--0xffffffff ; common area for kernel and processes TRANSlation.TableWalk ON ; debugger uses a table walk to decode virtual addresses TRANSlation.ON ; switch on debugger(!) address translation ; Initialize Linux Awareness ; Note that the Linux awareness needs the kernel symbols to work ; check linux major version IF STRing.SCAN(Data.STRing(linux_banner), "Linux version 2.", 0)==0 ( &ka_path="~~/demo/arm/kernel/linux/linux-2.x" &awareness="linux.t32" ) ELSE ( &ka_path="~~/demo/arm/kernel/linux/linux-3.x" &awareness="linux3.t32" ) PRINT "initializing RTOS support..." TASK.CONFIG &ka_path/&awareness ; loads Linux awareness MENU.ReProgram &ka_path/linux ; loads Linux menu TASK.ACCESS D: ; Group kernel area to be displayed with red bar GROUP.Create "kernel" 0xc0000000--0xffffffff /RED ; Ok, we're done, let's start Linux WinTOP TERM.view ; set terminal window to front Go.direct PRINT "starting Linux... (please wait)" WAIT 16.s Break.direct PRINT "done." ; done with loading and starting Linux ; -------------------------------------------------------------------------------- ; Application Debugging ; e.g. "hello" ; -------------------------------------------------------------------------------- ; activate autoloader for processes: TASK.sYmbol.Option AutoLoad Process PRINT "please log in and start 'hello'" ; script based ; using the script based application debugging ; gives more control over the single commands ; see file "app_debug.cmm" LOCAL &extdir &extdir=TASK.GETDIR() DO &extdir/app_debug hello ; process watch system ; the process watch system automates the actions ; for application debugging ;WINPOS 55. 24. 40. 4. ;TASK.Watch.View "hello" ;Go ENDDO