feat(intel): add QSPI get devinfo mailbox cmd

Linux RSU receive QSPI device info from SDM and report to user about
the device info.

Change-Id: Ib41692c9c4888c745a48a0609396aef0ca7fe25b
Signed-off-by: Kah Jing Lee <kah.jing.lee@intel.com>
Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
diff --git a/plat/intel/soc/common/socfpga_sip_svc.c b/plat/intel/soc/common/socfpga_sip_svc.c
index f68dc29..2f88c86 100644
--- a/plat/intel/soc/common/socfpga_sip_svc.c
+++ b/plat/intel/soc/common/socfpga_sip_svc.c
@@ -1,5 +1,7 @@
 /*
  * Copyright (c) 2019-2023, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2023, Intel Corporation. All rights reserved.
+ * Copyright (c) 2024, Altera Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -507,6 +509,16 @@
 	return INTEL_SIP_SMC_STATUS_OK;
 }
 
+static uint32_t intel_rsu_get_device_info(uint32_t *respbuf,
+					  unsigned int respbuf_sz)
+{
+	if (mailbox_rsu_get_device_info((uint32_t *)respbuf, respbuf_sz) < 0) {
+		return INTEL_SIP_SMC_RSU_ERROR;
+	}
+
+	return INTEL_SIP_SMC_STATUS_OK;
+}
+
 uint32_t intel_rsu_update(uint64_t update_address)
 {
 	if (update_address > SIZE_MAX) {
@@ -878,6 +890,16 @@
 		status = intel_rsu_copy_dcmf_version(x1, x2);
 		SMC_RET1(handle, status);
 
+	case INTEL_SIP_SMC_RSU_GET_DEVICE_INFO:
+		status = intel_rsu_get_device_info((uint32_t *)rsu_respbuf,
+					ARRAY_SIZE(rsu_respbuf));
+		if (status) {
+			SMC_RET1(handle, status);
+		} else {
+			SMC_RET5(handle, status, rsu_respbuf[0], rsu_respbuf[1],
+				 rsu_respbuf[2], rsu_respbuf[3]);
+		}
+
 	case INTEL_SIP_SMC_RSU_DCMF_STATUS:
 		SMC_RET2(handle, INTEL_SIP_SMC_STATUS_OK,
 			 ((uint64_t)rsu_dcmf_stat[3] << 48) |