; @Changelog: ; -------------------------------------------------------------------------------- ; @Title: Linux Demo for TRACE32 OS Awareness on the phyCORE-i.MX31 ; @Description: ; The example is generated for the phyCORE-i.MX31 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, imx3*, Linux, phycore, i.mx3* ; @Author: DIE ; @Board: phyCORE-i.MX31 ; @Chip: IMX31 ; @Copyright: (C) 1989-2019 Lauterbach GmbH, licensed for use with TRACE32(R) only ; -------------------------------------------------------------------------------- ; $Id: imx31_linux.cmm 15223 2019-11-05 16:29:45Z bschroefel $ ; PLEASE NOTE: Add "jtag=on" to the command line parameters, to prevent ; Linux from goint into wait mode (which spoils JTAG). ; Starting Linux example with TRACE32 and terminal: ; - Connect STRAIGHT modem cable to UARTC (upper connector) ; - Start TRACE32 ; - Open console terminal: 115200 baud, 8/N/1, no(!) handshake ; - Switch on the board ; - (T32) "do linux" LOCAL &ka_path &awareness SCREEN.ON ; Debugger Reset WinPAGE.RESet AREA.RESet WinPOS 0. 26. 75. 8. 0. 0. W000 AREA.view PRINT "resetting..." RESet ; Initializing Debugger PRINT "initializing..." SYStem.CPU MCIMX31 ; set your CPU here SYStem.Option DACR ON ; give Debugger global write permissions SYStem.Option ResBreak OFF ; board specific, see documentation SYStem.JtagClock RTCK ; board specific, see documentation 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 ; Target Setup: initialize board memory access and peripherals PRINT "target setup..." ; let the boot monitor setup the board Go WAIT 2.s Break DO atag_list ; 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 + 0x8000 ; We have to adjust it from the virtual start address ; to the physical start address ; i.e.: Data.LOAD.Elf vmlinux - PRINT "loading Linux kernel..." Data.LOAD.Elf vmlinux 0x80008000-0xC0008000 /NosYmbol Register.RESet ; Set PC on start address of image Register.Set PC 0x80008000 ; Set machine type in R1; see arch/arm/tools/mach-types Register.Set R1 0x01BF ; Set boot 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 ram 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 ramdisk..." Data.LOAD.Binary ramdisk.image.gz 0x80800000 /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 4 /PATH "S:\" ; Open a Code Window -- we like to see something WinPOS 0. 0. 75. 20. List.auto SCREEN.display Go __init_end /Onchip PRINT "initializing target and debugger MMU..." 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 0x80000000 TRNASlation.COMMON 0xbf000000--0xffffffff ; common area for kernel and processes TRNASlation.TableWalk ON TRNASlation.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 ; Group kernel area to be displayed with red bar GROUP.Create "kernel" 0xc0000000--0xffffffff /RED ; If you'd like to use the TRACE32 internal terminal: ;do ~~/demo/etc/terminal/serial/term.cmm COM1 115200. ; Ok, we're done, let's start Linux Go PRINT "starting Linux... (please wait)" WAIT 8.s Break 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" ; do ../app_debug hello ; process watch system ; the process watch system automates the actions ; for application debugging ;WINPOS 55. 25. 40. 4. ;TASK.Watch.View "hello" ;Go ENDDO