tcl/target: add Rockchip RK3308 target

Change-Id: Ia8c2cec0761c37623fa8a416bcfc405f2af6a6b3
Signed-off-by: Jiri Kastner <cz172638@gmail.com>
Reviewed-on: http://openocd.zylin.com/5774
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins

tcl/target/rk3308.cfg

@@ -0,0 +1,69 @@
+# Rockchip RK3308 Target
+# https://rockchip.fr/RK3308%20datasheet%20V1.5.pdf
+# https://dl.radxa.com/rockpis/docs/hw/datasheets/Rockchip%20RK3308TRM%20V1.1%20Part1-20180810.pdf
+
+if { [info exists CHIPNAME] } {
+  set _CHIPNAME $CHIPNAME
+} else {
+  set _CHIPNAME rk3308
+}
+
+#
+# Main DAP
+#
+if { [info exists DAP_TAPID] } {
+   set _DAP_TAPID $DAP_TAPID
+} else {
+   set _DAP_TAPID 0x2ba01477
+}
+
+adapter speed 12000
+
+transport select swd
+
+# declare the one SWD tap to access the DAP
+swd newdap $_CHIPNAME cpu -expected-id $_DAP_TAPID -ignore-version
+
+# create the DAP
+dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
+target create $_CHIPNAME.ahb mem_ap -dap $_CHIPNAME.dap -ap-num 0
+
+# declare the 8 main application cores
+set _TARGETNAME $_CHIPNAME.core
+set _smp_command ""
+
+set $_TARGETNAME.base(0) 0x81010000
+set $_TARGETNAME.base(1) 0x81012000
+set $_TARGETNAME.base(2) 0x81014000
+set $_TARGETNAME.base(3) 0x81016000
+
+set $_TARGETNAME.cti(0) 0x81018000
+set $_TARGETNAME.cti(1) 0x81019000
+set $_TARGETNAME.cti(2) 0x8101a000
+set $_TARGETNAME.cti(3) 0x8101b000
+
+set _cores 4
+for { set _core 0 } { $_core < $_cores } { incr _core 1 } {
+
+    cti create cti$_core -dap $_CHIPNAME.dap -ctibase [set $_TARGETNAME.cti($_core)] -ap-num 0
+
+    set _command "target create ${_TARGETNAME}$_core aarch64 \
+                         -dap $_CHIPNAME.dap -coreid $_core -cti cti$_core \
+                         -dbgbase [set $_TARGETNAME.base($_core)]"
+
+    if { $_core != 0 } {
+        set _smp_command "$_smp_command ${_TARGETNAME}$_core"
+    } else {
+        # uncomment to use hardware threads pseudo rtos
+        # set _command "$_command -rtos hwthread"
+        set _command "$_command -work-area-size 0x40000 -work-area-phys 0xfff80000 \
+                                -work-area-backup 0"
+        set _smp_command "target smp ${_TARGETNAME}$_core"
+    }
+
+    eval $_command
+}
+
+eval $_smp_command
+
+targets ${_TARGETNAME}0