diff --git a/tcl/target/bcm2837.cfg b/tcl/target/bcm2837.cfg new file mode 100644 index 000000000..749de3103 --- /dev/null +++ b/tcl/target/bcm2837.cfg @@ -0,0 +1,64 @@ +# 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