ipdbg: split ipdbg command into multiple commands

To simplify the ipdbg start/stop command and be able to
add additional commands in the future, we introduce the
concept of a hub which has to be created before a
ipdbg server can be started.
The hub was created on the fly in previous versions.

Change-Id: I55f317542d01a7324990b2cacd496a41fa5ff875
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7979
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

tcl/board/bemicro_cycloneiii.cfg

@@ -17,7 +17,8 @@ source [find fpga/altera-cycloneiii.cfg]
 #quartus_cpf --option=bitstream_compression=off -c output_files\cycloneiii_blinker.sof cycloneiii_blinker.rbf
 
 #openocd -f board/bemicro_cycloneiii.cfg -c "init" -c "pld load cycloneiii.pld cycloneiii_blinker.rbf"
-# "ipdbg -start -tap cycloneiii.tap -hub 0x00e -tool 0 -port 5555"
+# "ipdbg create-hub cycloneiii.ipdbghub -tap cycloneiii.tap -ir 0x00e"
+# "cycloneiii.ipdbghub ipdbg start -tool 0 -port 5555"
 
 
 set JTAGSPI_CHAIN_ID cycloneiii.pld

tcl/board/digilent_cmod_s7.cfg

@@ -15,7 +15,8 @@ adapter speed 10000
 
 source [find cpld/xilinx-xc7.cfg]
 
-# "ipdbg -start -tap xc7.tap -hub 0x02 -tool 0 -port 5555"
+# "ipdbg create-hub xc7.ipdbghub -tap xc7.tap -ir 0x02"
+# "xc7.ipdbghub ipdbg start -tool 0 -port 5555"
 #openocd -f board/digilent_cmod_s7.cfg -c "init" -c "pld load xc7.pld shared_folder/cmod_s7_fast.bit"
 
 set JTAGSPI_CHAIN_ID xc7.pld

tcl/board/ecp5_evaluation.cfg

@@ -16,7 +16,8 @@ adapter speed 6000
 source [find fpga/lattice_ecp5.cfg]
 
 #openocd -f board/ecp5_evaluation.cfg -c "init" -c "pld load ecp5.pld shared_folder/ecp5_blinker_impl1.bit"
-#ipdbg -start -tap ecp5.tap -hub 0x32 -port 5555 -tool 0
+#ipdbg create-hub ecp5.ipdbghub -tap ecp5.tap -ir 0x32
+#ecp5.ipdbghub ipdbg start -tool 0 -port 5555
 
 set JTAGSPI_CHAIN_ID ecp5.pld
 source [find cpld/jtagspi.cfg]

tcl/board/gowin_runber.cfg

@@ -16,4 +16,5 @@ source [find fpga/gowin_gw1n.cfg]
 
 
 #openocd -f board/gowin_runber.cfg  -c "init" -c "pld load 0 impl/pnr/gw1n_blinker.fs"
-#ipdbg -start -tap gw1n.tap -hub 0x42 -port 5555 -tool 0
+#ipdbg create-hub gw1n.ipdbghub -tap gw1n.tap -ir 0x42
+#gw1n.ipdbghubipdbg start  -tool 0 -port 5555

tcl/board/trion_t20_bga256.cfg

@@ -20,7 +20,8 @@ adapter speed 6000
 source [find fpga/efinix_trion.cfg]
 
 #openocd -f board/trion_t20_bga256.cfg -c "init" -c "pld load trion.pld outflow/trion_blinker.bit"
-#ipdbg -start -tap trion.tap -hub 0x8 -port 5555 -tool 0
+#ipdbg create-hub trion.ipdbghub -tap trion.tap -ir 0x8
+#trion.ipdbghub ipdbg start -tool 0 -port 5555
 
 set JTAGSPI_CHAIN_ID trion.pld
 source [find cpld/jtagspi.cfg]