plat/arm/sgi: Use platform specific functions to get platform ids
Add two new functions 'plat_arm_sgi_get_platform_id' and
'plat_arm_sgi_get_config_id' which will be implemented by all the
SGI platforms. These functions can be used to determine the part
number and configuration id of the SGI platforms.
In BL2, these functions are used to populate the 'system-id' node.
In BL31, these functions are used to populate the 'sgi_plat_info_t'
structure with the part number and configuration id of the platform.
Change-Id: I3bacda933527724a3b4074ad4ed5b53a81ea4689
Signed-off-by: Chandni Cherukuri <chandni.cherukuri@arm.com>
diff --git a/plat/arm/board/sgi575/platform.mk b/plat/arm/board/sgi575/platform.mk
index dd82d29..f31a8b7 100644
--- a/plat/arm/board/sgi575/platform.mk
+++ b/plat/arm/board/sgi575/platform.mk
@@ -14,12 +14,14 @@
BL1_SOURCES += ${SGI_CPU_SOURCES}
-BL2_SOURCES += ${SGI575_BASE}/sgi575_security.c \
+BL2_SOURCES += ${SGI575_BASE}/sgi575_plat.c \
+ ${SGI575_BASE}/sgi575_security.c \
drivers/arm/tzc/tzc_dmc620.c \
lib/utils/mem_region.c \
plat/arm/common/arm_nor_psci_mem_protect.c
BL31_SOURCES += ${SGI_CPU_SOURCES} \
+ ${SGI575_BASE}/sgi575_plat.c \
drivers/cfi/v2m/v2m_flash.c \
lib/utils/mem_region.c \
plat/arm/common/arm_nor_psci_mem_protect.c
diff --git a/plat/arm/board/sgi575/sgi575_plat.c b/plat/arm/board/sgi575/sgi575_plat.c
new file mode 100644
index 0000000..a8ca916
--- /dev/null
+++ b/plat/arm/board/sgi575/sgi575_plat.c
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform.h>
+
+unsigned int plat_arm_sgi_get_platform_id(void)
+{
+ return mmio_read_32(SSC_VERSION) & SSC_VERSION_PART_NUM_MASK;
+}
+
+unsigned int plat_arm_sgi_get_config_id(void)
+{
+ return (mmio_read_32(SSC_VERSION) >> SSC_VERSION_CONFIG_SHIFT)
+ & SSC_VERSION_CONFIG_MASK;
+}
diff --git a/plat/arm/board/sgiclarka/platform.mk b/plat/arm/board/sgiclarka/platform.mk
index cf02219..0773be5 100644
--- a/plat/arm/board/sgiclarka/platform.mk
+++ b/plat/arm/board/sgiclarka/platform.mk
@@ -14,12 +14,14 @@
BL1_SOURCES += ${SGI_CPU_SOURCES}
-BL2_SOURCES += ${SGICLARKA_BASE}/sgiclarka_security.c \
+BL2_SOURCES += ${SGICLARKA_BASE}/sgiclarka_plat.c \
+ ${SGICLARKA_BASE}/sgiclarka_security.c \
drivers/arm/tzc/tzc_dmc620.c \
lib/utils/mem_region.c \
plat/arm/common/arm_nor_psci_mem_protect.c
BL31_SOURCES += ${SGI_CPU_SOURCES} \
+ ${SGICLARKA_BASE}/sgiclarka_plat.c \
drivers/cfi/v2m/v2m_flash.c \
lib/utils/mem_region.c \
plat/arm/common/arm_nor_psci_mem_protect.c
diff --git a/plat/arm/board/sgiclarka/sgiclarka_plat.c b/plat/arm/board/sgiclarka/sgiclarka_plat.c
new file mode 100644
index 0000000..3df2da6
--- /dev/null
+++ b/plat/arm/board/sgiclarka/sgiclarka_plat.c
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform.h>
+
+unsigned int plat_arm_sgi_get_platform_id(void)
+{
+ return mmio_read_32(SID_REG_BASE + SID_SYSTEM_ID_OFFSET)
+ & SID_SYSTEM_ID_PART_NUM_MASK;
+}
+
+unsigned int plat_arm_sgi_get_config_id(void)
+{
+ return mmio_read_32(SID_REG_BASE + SID_SYSTEM_CFG_OFFSET);
+}