boards: scobc_a1: Cleanup OpenOCD script

The default OpenOCD interface for the SC-OBC Module A1 has changed to
CMSIS-DAP, with standard interfaces such as the Raspberry Pi Pico Debug
Probe.

To accommodate multiple debug interfaces, the OpenOCD scripts have been
cleaned up.

If you still wish to use FT2232D or FT232R interface,
please set the following environment variable before running
`west flash`:

  $ export OPENOCD_INTERFACE=FT2232D
  $ west flash

  $ export OPENOCD_INTERFACE=FT232R
  $ west flash

Signed-off-by: Takuya Sasaki <[email protected]>
Signed-off-by: Gaetan Perrot <[email protected]>

Author: sasataku

boards/sc/scobc_a1/board.cmake

@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: Apache-2.0
 
-board_runner_args(openocd "--use-elf" "--config=${BOARD_DIR}/support/openocd-ftdi.cfg")
+board_runner_args(openocd "--use-elf" "--config=${BOARD_DIR}/support/scobc-a1.cfg")
 
 include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)

boards/sc/scobc_a1/support/openocd-ft232r.cfg

@@ -1,6 +1,22 @@
 # Copyright (C) 2021 Space Cubics, LLC.
 # Yasushi SHOJI <[email protected]>
 
+if {[info exists env(OPENOCD_INTERFACE)]} {
+    set _INTERFACE $env(OPENOCD_INTERFACE)
+} else {
+    # Default CMIS-DAP
+    set _INTERFACE "CMSIS-DAP"
+}
+
+if { $_INTERFACE == "FT2232D" } {
+    source [find akizuki-m-02990.cfg]
+} elseif { $_INTERFACE == "FT232R" } {
+    source [find interface/ft232r.cfg]
+} else {
+    source [find interface/cmsis-dap.cfg]
+    source [find target/swj-dp.tcl]
+}
+
 if { [info exists CHIPNAME] } {
     set  _CHIPNAME $CHIPNAME
 } else {
@@ -19,7 +35,13 @@ if { [info exists WORKAREASIZE] } {
 	set _WORKAREASIZE 0x4000
 }
 
-jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+adapter speed 5000
+
+if [using_swd] {
+    swj_newdap $_CHIPNAME cpu -expected-id $_CPUTAPID
+} else {
+    jtag newtap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
+}
 dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
 
 set _TARGETNAME $_CHIPNAME.cpu