zynqmp: pm: Support ATF PM version check
Add SMC call to query ATF PM version. This version
can be used by Linux to match with expected version.
Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
diff --git a/plat/xilinx/zynqmp/pm_service/pm_common.h b/plat/xilinx/zynqmp/pm_service/pm_common.h
index 5dcbb0d..4d03bc0 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_common.h
+++ b/plat/xilinx/zynqmp/pm_service/pm_common.h
@@ -19,6 +19,11 @@
#define PAYLOAD_ARG_CNT 6U
#define PAYLOAD_ARG_SIZE 4U /* size in bytes */
+#define ZYNQMP_TZ_VERSION_MAJOR 1
+#define ZYNQMP_TZ_VERSION_MINOR 0
+#define ZYNQMP_TZ_VERSION ((ZYNQMP_TZ_VERSION_MAJOR << 16) | \
+ ZYNQMP_TZ_VERSION_MINOR)
+
/**
* pm_ipi - struct for capturing IPI-channel specific info
* @apu_ipi_id APU IPI agent ID
diff --git a/plat/xilinx/zynqmp/pm_service/pm_svc_main.c b/plat/xilinx/zynqmp/pm_service/pm_svc_main.c
index 4fd69b9..518e18f 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_svc_main.c
+++ b/plat/xilinx/zynqmp/pm_service/pm_svc_main.c
@@ -19,6 +19,7 @@
#include "pm_ipi.h"
#define PM_GET_CALLBACK_DATA 0xa01
+#define PM_GET_TRUSTZONE_VERSION 0xa03
/* 0 - UP, !0 - DOWN */
static int32_t pm_down = !0;
@@ -355,6 +356,10 @@
SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
}
+ case PM_GET_TRUSTZONE_VERSION:
+ SMC_RET1(handle, (uint64_t)PM_RET_SUCCESS |
+ ((uint64_t)ZYNQMP_TZ_VERSION << 32));
+
default:
WARN("Unimplemented PM Service Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);