; --------------------------------------------------------------------------------
; @Title: Linux Demo for TRACE32 OS Awareness on the BeagleBoard
; @Description:
;   This batchfile demonstrates the use of the OS Awareness for Linux
;   The example is generated for the BeagleBoard 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, Beagle, RTOS
; @Author: DIE
; @Board: BeagleBoard
; @Chip: OMAP3530
; @Copyright: (C) 1989-2019 Lauterbach GmbH, licensed for use with TRACE32(R) only
; --------------------------------------------------------------------------------
; $Id: beagleboard_linux.cmm 15210 2019-11-04 10:51:00Z bschroefel $


; Starting Linux example with TRACE32:
; - Connect STRAIGHT modem cable to RS232
;   - 115200 baud, 8/N/1, no(!) handshake
; - Start TRACE32
; - Switch on the board
; - TRACE32: "do linux"
; - Terminal: start "hello"

 SCREEN.ALways      ; permanent update for internal terminal window
 ; screen.on        ; if you use external terminal


; Debugger Reset

 WinPAGE.RESet
 AREA.RESet
 WinPOS 0. 21. 70. 9. 0. 0. W000
 AREA.view

 PRINT "resetting..."

 RESet


; Initializing Debugger

 PRINT "initializing..."
 SYStem.CPU OMAP3530
 SYStem.JtagClock RTCK
 SYStem.Option ResBreak OFF     ; hardware dependent (see manual)
 SYStem.Option WaitReset 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 a Code Window -- we like to see something

 WinPOS 0. 0. 75. 20.
 List.auto
 SCREEN.display


; Open serial terminal window on COM1

 DO ~~/demo/etc/terminal/serial/term.cmm COM1 115200.

; Target Setup

 ; start u-boot to initialize the board
 Go
 PRINT "target setup..."
 WAIT 5.s
 Break


; Load the Linux kernel image

 ; Use the next lines only to load the Linux image into
 ; RAM using the debugger.

 PRINT "loading Linux kernel image..."
 Data.LOAD.Binary uImage 0x80300000


; 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.

 ; The load address is either hardcoded in arch/arm/<board>/arch.c,
 ; or must be passed by a boot parameter, or as command line option

 PRINT "loading initial ram disk..."
 Data.LOAD.Binary ramdisk.image.gz 0x81600000 /NoClear /NosYmbol


; Load the Linux kernel symbols into the debugger

 PRINT "loading Linux kernel symbols..."
 Data.LOAD.Elf vmlinux /NoCODE /StripPART "linux-2.6.29"
 sYmbol.SourcePATH.Set X:\Linux\TRACE32\arm\BeagleBoard\TimeSys\kernel-source\linux-2.6.29


; Start Linux via U-Boot

 Go
 PRINT "starting Linux..."
 ; stop autoboot of U-Boot
 TERM.Out 0x0a
 WAIT 0.5s
 ; set boot arguments
 TERM.Out "setenv bootargs console=ttyS2,115200 root=/dev/ram rw initrd=0x81600000,10M rootwait" 0xa
 WAIT 0.5s
 ; boot Linux from memory: bootm <kernel>
 TERM.Out "bootm 0x80300000" 0x0a


; 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--0xcfffffff 0x80000000
 TRANSlation.COMMON 0xbf000000--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 Support

 ; Note that the Linux awareness needs the kernel symbols to work

 PRINT "initializing Linux support..."
 ; Choose the correct Linux major version below
 TASK.CONFIG ~~/demo/arm/kernel/linux/linux-2.x/linux.t32     ; loads Linux awareness for linux-2.x
 MENU.ReProgram ~~/demo/arm/kernel/linux/linux-2.x/linux.men  ; loads Linux menu  for linux-2.x
 ;TASK.CONFIG ~~/demo/arm/kernel/linux/linux-3.x/linux3.t32     ; loads Linux awareness for linux-3.x
 ;MENU.ReProgram ~~/demo/arm/kernel/linux/linux-3.x/linux.men  ; loads Linux menu  for linux-3.x

 ; Group kernel area to be displayed with red bar
 GROUP.Create "kernel" 0xc0000000--0xffffffff /RED


; Ok, we're done, let's continue

 PRINT "still starting Linux... (please wait)"
 WAIT 12.s

; Login as root
 TERM.Out "root" 0x0d
 WAIT 2.s

 PRINT "done."     ; done with loading and starting NetBSD

; --------------------------------------------------------------------------------
;      Application Debugging
;      e.g. "hello"
; --------------------------------------------------------------------------------

   LOCAL &extdir
   &extdir=TASK.GETDIR()
   DO &extdir/app_debug hello

 ENDDO