firmware: stratix10-svc: To support a command ATF Get Version

We are to support a new SMC Command of hexadecimal 0x200 that returns
the ATF Firmware major and minor version.

Signed-off-by: Ang Tien Sung <[e-mail]>
Signed-off-by: Dinh Nguyen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/firmware/stratix10-svc.c

···
 		cb_data->status = BIT(SVC_STATUS_OK);
 		cb_data->kaddr1 = &res.a1;
 		break;
+	case COMMAND_SMC_SVC_VERSION:
+		cb_data->status = BIT(SVC_STATUS_OK);
+		cb_data->kaddr1 = &res.a1;
+		cb_data->kaddr2 = &res.a2;
+		break;
 	case COMMAND_RSU_DCMF_VERSION:
 		cb_data->status = BIT(SVC_STATUS_OK);
 		cb_data->kaddr1 = &res.a1;
···
 			break;
 		case COMMAND_RSU_DCMF_STATUS:
 			a0 = INTEL_SIP_SMC_RSU_DCMF_STATUS;
+			a1 = 0;
+			a2 = 0;
+			break;
+		case COMMAND_SMC_SVC_VERSION:
+			a0 = INTEL_SIP_SMC_SVC_VERSION;
 			a1 = 0;
 			a2 = 0;
 			break;

include/linux/firmware/intel/stratix10-smc.h

···
         INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FIRMWARE_VERSION)
 
 /**
+ * Request INTEL_SIP_SMC_SVC_VERSION
+ *
+ * Sync call used to query the SIP SMC API Version
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_SVC_VERSION
+ * a1-a7 not used
+ *
+ * Return status:
+ * a0 INTEL_SIP_SMC_STATUS_OK
+ * a1 Major
+ * a2 Minor
+ */
+#define INTEL_SIP_SMC_SVC_FUNCID_VERSION 512
+#define INTEL_SIP_SMC_SVC_VERSION \
+	INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_SVC_FUNCID_VERSION)
+
+/**
  * SMC call protocol for FPGA Crypto Service (FCS)
  * FUNCID starts from 90
  */

include/linux/firmware/intel/stratix10-svc-client.h

···
  * @COMMAND_FIRMWARE_VERSION: query running firmware version, return status
  * is SVC_STATUS_OK or SVC_STATUS_ERROR
  *
+ * @COMMAND_SMC_SVC_VERSION: Non-mailbox SMC SVC API Version,
+ * return status is SVC_STATUS_OK
+ *
  * @COMMAND_RSU_DCMF_STATUS: query firmware for the DCMF status
  * return status is SVC_STATUS_OK or SVC_STATUS_ERROR
  *
···
 	COMMAND_FCS_RANDOM_NUMBER_GEN,
 	/* for general status poll */
 	COMMAND_POLL_SERVICE_STATUS = 40,
+	/* Non-mailbox SMC Call */
+	COMMAND_SMC_SVC_VERSION = 200,
 };
 
 /**