riscv-openocd/tcl/target/altera_fpgasoc.cfg

#
# Altera cyclone V SoC family, 5Cxxx
#
if { [info exists CHIPNAME] } {
   set _CHIPNAME $CHIPNAME
} else {
   set _CHIPNAME fpgasoc
}

# CoreSight Debug Access Port
if { [info exists DAP_TAPID] } {
        set _DAP_TAPID $DAP_TAPID
} else {
        set _DAP_TAPID 0x4ba00477
}

jtag newtap $_CHIPNAME dap -irlen 4 -ircapture 0x01 -irmask 0x0f \
        -expected-id $_DAP_TAPID

# Subsidiary TAP: fpga
if { [info exists FPGA_TAPID] } {
   set _FPGA_TAPID $FPGA_TAPID
} else {
   set _FPGA_TAPID 0x02d020dd
}
jtag newtap $_CHIPNAME.fpga tap -irlen 10 -ircapture 0x01 -irmask 0x3 -expected-id $_FPGA_TAPID


#
# Cortex-A9 target
#

# GDB target: Cortex-A9, using DAP, configuring only one core
# Base addresses of cores:
# core 0  -  0x80110000
# core 1  -  0x80112000

# Slow speed to be sure it will work
adapter_khz 1000

set _TARGETNAME1 $_CHIPNAME.cpu.0
set _TARGETNAME2 $_CHIPNAME.cpu.1

# A9 core 0
target create $_TARGETNAME1 cortex_a -chain-position $_CHIPNAME.dap \
        -coreid 0 -dbgbase 0x80110000

$_TARGETNAME1 configure -event reset-start { adapter_khz 1000 }
$_TARGETNAME1 configure -event reset-assert-post "cycv_dbginit $_TARGETNAME1"
$_TARGETNAME1 configure -event gdb-attach { halt }


# A9 core 1
#target create $_TARGETNAME2 cortex_a -chain-position $_CHIPNAME.dap \
#        -coreid 1 -dbgbase 0x80112000

#$_TARGETNAME2 configure -event reset-start { adapter_khz 1000 }
#$_TARGETNAME2 configure -event reset-assert-post "cycv_dbginit $_TARGETNAME2"
#$_TARGETNAME2 configure -event gdb-attach { halt }

proc cycv_dbginit {target} {
        # General Cortex-A8/A9 debug initialisation
        cortex_a dbginit
}