-# Analog Devices ADSP-SC58x (ARM Cortex-A5 plus one or two SHARC+ DSPs)
+# SPDX-License-Identifier: GPL-2.0-or-later
-# evaluation boards by Analog Devices (and designs derived from them) use a non-standard 10-pin 0.05" ARM Cortex Debug Connector
-# pin 9 (GND or GNDDetect) has been usurped with JTAG /TRST
-# as a result, a standards-compliant debug pod will only force the processor's debug interface into reset, preventing usage
-# so, a connector adapter must be employed on these boards to isolate or otherwise prevent /TRST from being asserted
+#
+# Analog Devices ADSP-SC58x (ARM Cortex-A5 plus one or two SHARC+ DSPs)
+#
+
+# Evaluation boards by Analog Devices (and designs derived from them) use a
+# non-standard 10-pin 0.05" ARM Cortex Debug Connector. In this bastardized
+# implementation, pin 9 (GND or GNDDetect) has been usurped with JTAG /TRST.
+#
+# As a result, a standards-compliant debug pod will force /TRST active,
+# putting the processor's debug interface into reset and preventing usage.
+#
+# A connector adapter must be employed on these boards to isolate or remap
+# /TRST so that it is only asserted when intended.
-transport select swd
source [find target/swj-dp.tcl]
if { [info exists CHIPNAME] } {
set _CPUTAPID 0x3BA02477
}
-swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
+swj_newdap $_CHIPNAME cpu -irlen 4 -expected-id $_CPUTAPID
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
+
+target create ap0.mem mem_ap -dap $_CHIPNAME.dap -ap-num 0
set _TARGETNAME $_CHIPNAME.cpu
-target create $_TARGETNAME cortex_a -endian $_ENDIAN -chain-position $_TARGETNAME
+target create $_TARGETNAME cortex_a -endian $_ENDIAN -dap $_CHIPNAME.dap
$_TARGETNAME configure -event examine-end {
global _TARGETNAME
- sc58x_enabledebug $_TARGETNAME
+ sc58x_enabledebug
}
-proc sc58x_enabledebug {target} {
- # Enable debugging functionality by setting relevant bits in the TAPC_DBGCTL register
- # the "phys" option is critical; the OpenOCD Cortex-A target code prevents normal mww when the target is not halted
- # however, it is not possible to halt the target unless these register bits have been set
- $target mww phys 0x31131000 0xFFFF
+proc sc58x_enabledebug {} {
+ # Enable debugging functionality by setting bits in the TAPC_DBGCTL register
+ # it is not possible to halt the target unless these bits have been set
+ ap0.mem mww 0x31131000 0xFFFF
}
-