plat/arm: juno: Implement methods to retrieve soc-id information
Implemented platform functions to retrieve the soc-id information
for juno platform
Change-Id: Ie677120710b45e202a2d63a954459ece8a64b353
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/plat/arm/board/juno/juno_common.c b/plat/arm/board/juno/juno_common.c
index 9570d2d..da4918c 100644
--- a/plat/arm/board/juno/juno_common.c
+++ b/plat/arm/board/juno/juno_common.c
@@ -1,10 +1,13 @@
/*
- * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
+#include <lib/smccc.h>
#include <platform_def.h>
+#include <services/arm_arch_svc.h>
+
#include <plat/arm/common/plat_arm.h>
/*
@@ -91,3 +94,40 @@
#endif
ARM_CASSERT_MMAP
+
+/*****************************************************************************
+ * plat_is_smccc_feature_available() - This function checks whether SMCCC
+ * feature is availabile for platform.
+ * @fid: SMCCC function id
+ *
+ * Return SMC_ARCH_CALL_SUCCESS if SMCCC feature is available and
+ * SMC_ARCH_CALL_NOT_SUPPORTED otherwise.
+ *****************************************************************************/
+int32_t plat_is_smccc_feature_available(u_register_t fid)
+{
+ switch (fid) {
+ case SMCCC_ARCH_SOC_ID:
+ return SMC_ARCH_CALL_SUCCESS;
+ default:
+ return SMC_ARCH_CALL_NOT_SUPPORTED;
+ }
+}
+
+/* Get SOC version */
+int32_t plat_get_soc_version(void)
+{
+ return (int32_t)
+ ((ARM_SOC_IDENTIFICATION_CODE << ARM_SOC_IDENTIFICATION_SHIFT)
+ | (ARM_SOC_CONTINUATION_CODE << ARM_SOC_CONTINUATION_SHIFT)
+ | JUNO_SOC_ID);
+}
+
+/* Get SOC revision */
+int32_t plat_get_soc_revision(void)
+{
+ unsigned int sys_id;
+
+ sys_id = mmio_read_32(V2M_SYSREGS_BASE + V2M_SYS_ID);
+ return (int32_t)((sys_id >> V2M_SYS_ID_REV_SHIFT) &
+ V2M_SYS_ID_REV_MASK);
+}
diff --git a/plat/arm/board/juno/juno_def.h b/plat/arm/board/juno/juno_def.h
index 3b34a9f..ddf99dc 100644
--- a/plat/arm/board/juno/juno_def.h
+++ b/plat/arm/board/juno/juno_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -9,6 +9,11 @@
#include <lib/utils_def.h>
+/******************************************************************************
+ * Definition of platform soc id
+ *****************************************************************************/
+#define JUNO_SOC_ID 1
+
/*******************************************************************************
* Juno memory map related constants
******************************************************************************/