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- # SPDX-License-Identifier: GPL-2.0-or-later
-
- # This is the Broadcom chip used in the Raspberry Pi 3,
- # and in later models of the Raspberry Pi 2.
-
- # Partial information is available in raspberry pi website:
- # https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2837
- # https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2837b0
-
- if { [info exists CHIPNAME] } {
- set _CHIPNAME $CHIPNAME
- } else {
- set _CHIPNAME bcm2837
- }
-
- if { [info exists CHIPCORES] } {
- set _cores $CHIPCORES
- } else {
- set _cores 4
- }
-
- if { [info exists USE_SMP] } {
- set _USE_SMP $USE_SMP
- } else {
- set _USE_SMP 0
- }
-
- if { [info exists DAP_TAPID] } {
- set _DAP_TAPID $DAP_TAPID
- } else {
- set _DAP_TAPID 0x4ba00477
- }
-
- jtag newtap $_CHIPNAME cpu -expected-id $_DAP_TAPID -irlen 4
- adapter speed 4000
-
- dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
-
- # MEM-AP for direct access
- target create $_CHIPNAME.ap mem_ap -dap $_CHIPNAME.dap -ap-num 0
-
- # these addresses are obtained from the ROM table via 'dap info 0' command
- set _DBGBASE {0x80010000 0x80012000 0x80014000 0x80016000}
- set _CTIBASE {0x80018000 0x80019000 0x8001a000 0x8001b000}
-
- set _smp_command "target smp"
-
- for { set _core 0 } { $_core < $_cores } { incr _core } {
- set _CTINAME $_CHIPNAME.cti$_core
- set _TARGETNAME $_CHIPNAME.cpu$_core
-
- cti create $_CTINAME -dap $_CHIPNAME.dap -ap-num 0 -baseaddr [lindex $_CTIBASE $_core]
- target create $_TARGETNAME aarch64 -dap $_CHIPNAME.dap -ap-num 0 -dbgbase [lindex $_DBGBASE $_core] -cti $_CTINAME
- $_TARGETNAME configure -event reset-assert-post { aarch64 dbginit }
-
- set _smp_command "$_smp_command $_TARGETNAME"
- }
-
- if {$_USE_SMP} {
- eval $_smp_command
- }
-
- # default target is cpu0
- targets $_CHIPNAME.cpu0
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