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