nano-33-ble: SoftDevice s140v7 support

targets/nano-33-ble-s140v7.json

@@ -0,0 +1,6 @@
+{
+	"inherits": ["nano-33-ble", "nrf52840-s140v7"],
+	"flash-command": "nrfjprog -f nrf52 --sectorerase --program {hex} --reset",
+	"flash-1200-bps-reset": "false",
+	"openocd-interface": "jlink"
+}

targets/nano-33-ble-sense.json

@@ -1,3 +0,0 @@
-{
-	"inherits": ["nano-33-ble"]
-}

targets/nrf52840-s140v7.json

@@ -1,4 +1,7 @@
 {
 	"build-tags": ["softdevice", "s140v7"],
-	"linkerscript": "targets/nrf52840-s140v7.ld"
+	"linkerscript": "targets/nrf52840-s140v7.ld",
+	"ldflags": [
+		"--defsym=__softdevice_stack=0x700"
+	]
 }

targets/nrf52840-s140v7.ld

@@ -5,9 +5,10 @@ MEMORY
     RAM (xrw)       : ORIGIN = 0x20000000 + 0x000039c0, LENGTH = 256K - 0x000039c0
 }
 
-_stack_size = 4K;
+_stack_size = 4K + __softdevice_stack;
 
 /* This value is needed by the Nordic SoftDevice. */
 __app_ram_base = ORIGIN(RAM);
+__softdevice_stack = DEFINED(__softdevice_stack) ? __softdevice_stack : 0;
 
 INCLUDE "targets/arm.ld"