jtagspi/pld: add support from intel driver

Provide jtagspi with information to use jtagspi for
programming spi-flash devices on intel devices using
a proxy bitstream.

Change-Id: Ib947b8c0dd61e2c6fa8beeb30074606131b1480f
Signed-off-by: Daniel Anselmi <danselmi@gmx.ch>
Reviewed-on: https://review.openocd.org/c/openocd/+/7837
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

src/pld/intel.c

@@ -362,6 +362,12 @@ static int intel_get_ipdbg_hub(int user_num, struct pld_device *pld_device, stru
 	return ERROR_OK;
 }
 
+static int intel_get_jtagspi_userircode(struct pld_device *pld_device, unsigned int *ir)
+{
+	*ir = USER1;
+	return ERROR_OK;
+}
+
 COMMAND_HANDLER(intel_set_bscan_command_handler)
 {
 	unsigned int boundary_scan_length;
@@ -412,7 +418,6 @@ COMMAND_HANDLER(intel_set_check_pos_command_handler)
 	return ERROR_OK;
 }
 
-
 PLD_CREATE_COMMAND_HANDLER(intel_pld_create_command)
 {
 	if (CMD_ARGC != 4 && CMD_ARGC != 6)
@@ -498,4 +503,5 @@ struct pld_driver intel_pld = {
 	.pld_create_command = &intel_pld_create_command,
 	.load = &intel_load,
 	.get_ipdbg_hub = intel_get_ipdbg_hub,
+	.get_jtagspi_userircode = intel_get_jtagspi_userircode,
 };