tcl/target/ti_dm355.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 #
   4 # Texas Instruments DaVinci family: TMS320DM355
   5 #
   6 if { [info exists CHIPNAME] } {
   7    set _CHIPNAME $CHIPNAME
   8 } else {
   9    set _CHIPNAME dm355
  10 }
  11
  12 # TI boards default to EMU0/EMU1 *high* -- ARM and ETB are *disabled*
  13 # after JTAG reset until ICEpick is used to route them in.
  14 set EMU01 "-disable"
  15
  16 # With EMU0/EMU1 jumpered *low* ARM and ETB are *enabled* without
  17 # needing any ICEpick interaction.
  18 #set EMU01 "-enable"
  19
  20 source [find target/icepick.cfg]
  21
  22 #
  23 # Also note: when running without RTCK before the PLLs are set up, you
  24 # may need to slow the JTAG clock down quite a lot (under 2 MHz).
  25 #
  26
  27 # Subsidiary TAP: ARM ETB11, with scan chain for 4K of ETM trace buffer
  28 if { [info exists ETB_TAPID] } {
  29    set _ETB_TAPID $ETB_TAPID
  30 } else {
  31    set _ETB_TAPID 0x2b900f0f
  32 }
  33 jtag newtap $_CHIPNAME etb -irlen 4 -irmask 0xf -expected-id $_ETB_TAPID $EMU01
  34 jtag configure $_CHIPNAME.etb -event tap-enable \
  35         "icepick_c_tapenable $_CHIPNAME.jrc 1"
  36
  37 # Subsidiary TAP: ARM926ejs with scan chains for ARM Debug, EmbeddedICE-RT, ETM.
  38 if { [info exists CPU_TAPID] } {
  39    set _CPU_TAPID $CPU_TAPID
  40 } else {
  41    set _CPU_TAPID 0x07926001
  42 }
  43 jtag newtap $_CHIPNAME arm -irlen 4 -irmask 0xf -expected-id $_CPU_TAPID $EMU01
  44 jtag configure $_CHIPNAME.arm -event tap-enable \
  45         "icepick_c_tapenable $_CHIPNAME.jrc 0"
  46
  47 # Primary TAP: ICEpick (JTAG route controller) and boundary scan
  48 if { [info exists JRC_TAPID] } {
  49    set _JRC_TAPID $JRC_TAPID
  50 } else {
  51    set _JRC_TAPID 0x0b73b02f
  52 }
  53 jtag newtap $_CHIPNAME jrc -irlen 6 -irmask 0x3f -expected-id $_JRC_TAPID
  54
  55 jtag configure $_CHIPNAME.jrc -event setup \
  56         "jtag tapenable $_CHIPNAME.etb; jtag tapenable $_CHIPNAME.arm"
  57
  58 ################
  59
  60 # various symbol definitions, to avoid hard-wiring addresses
  61 # and enable some sharing of DaVinci-family utility code
  62 global dm355
  63 set dm355 [ dict create ]
  64
  65 # Physical addresses for controllers and memory
  66 # (Some of these are valid for many DaVinci family chips)
  67 dict set dm355 sram0            0x00010000
  68 dict set dm355 sram1            0x00014000
  69 dict set dm355 sysbase          0x01c40000
  70 dict set dm355 pllc1            0x01c40800
  71 dict set dm355 pllc2            0x01c40c00
  72 dict set dm355 psc              0x01c41000
  73 dict set dm355 gpio             0x01c67000
  74 dict set dm355 a_emif           0x01e10000
  75 dict set dm355 a_emif_cs0       0x02000000
  76 dict set dm355 a_emif_cs1       0x04000000
  77 dict set dm355 ddr_emif         0x20000000
  78 dict set dm355 ddr              0x80000000
  79 dict set dm355 uart0            0x01c20000
  80 dict set dm355 uart1            0x01c20400
  81 dict set dm355 uart2            0x01e06000
  82
  83 source [find target/davinci.cfg]
  84
  85 ################
  86 # GDB target: the ARM, using SRAM1 for scratch.  SRAM0 (also 16K)
  87 # and the ETB memory (4K) are other options, while trace is unused.
  88 set _TARGETNAME $_CHIPNAME.arm
  89
  90 target create $_TARGETNAME arm926ejs -chain-position $_TARGETNAME
  91
  92 # NOTE that work-area-virt presumes a Linux 2.6.30-rc2+ kernel,
  93 # and that the work area is used only with a kernel mmu context ...
  94 $_TARGETNAME configure \
  95         -work-area-virt [expr {0xfffe0000 + 0x4000}] \
  96         -work-area-phys [dict get $dm355 sram1] \
  97         -work-area-size 0x4000 \
  98         -work-area-backup 0
  99
 100 # be absolutely certain the JTAG clock will work with the worst-case
 101 # CLKIN = 24 MHz (best case: 36 MHz) even when no bootloader turns
 102 # on the PLL and starts using it.  OK to speed up after clock setup.
 103 adapter speed 1500
 104 $_TARGETNAME configure -event "reset-start" { adapter speed 1500 }
 105
 106 arm7_9 fast_memory_access enable
 107 arm7_9 dcc_downloads enable
 108
 109 # trace setup
 110 etm config $_TARGETNAME 16 normal full etb
 111 etb config $_TARGETNAME $_CHIPNAME.etb