plat/arm/sgi: add secure memory support for sgi575 and sgiclarka
Remove the platform common plat_arm_security_setup function to allow
platform specific implementations of the security setup function
implemented in the board directory of the platform.
For use by secure software, configure region0 of DMC-620 trustzone
controller to protect the upper 16MB of memory of the first DRAM block
from non-secure accesses.
Change-Id: I9a8c19656702c4fa4f6917b3655b692d443bb568
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
diff --git a/plat/arm/board/sgiclarka/sgiclarka_security.c b/plat/arm/board/sgiclarka/sgiclarka_security.c
new file mode 100644
index 0000000..29cd754
--- /dev/null
+++ b/plat/arm/board/sgiclarka/sgiclarka_security.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <debug.h>
+#include <platform_def.h>
+#include <tzc_dmc620.h>
+
+uintptr_t sgiclarka_dmc_base[] = {
+ SGICLARKA_DMC620_BASE0,
+ SGICLARKA_DMC620_BASE1
+};
+
+static const tzc_dmc620_driver_data_t sgiclarka_plat_driver_data = {
+ .dmc_base = sgiclarka_dmc_base,
+ .dmc_count = ARRAY_SIZE(sgiclarka_dmc_base)
+};
+
+static const tzc_dmc620_acc_addr_data_t sgiclarka_acc_addr_data[] = {
+ {
+ .region_base = ARM_AP_TZC_DRAM1_BASE,
+ .region_top = ARM_AP_TZC_DRAM1_BASE + ARM_TZC_DRAM1_SIZE - 1,
+ .sec_attr = TZC_DMC620_REGION_S_RDWR
+ }
+};
+
+static const tzc_dmc620_config_data_t sgiclarka_plat_config_data = {
+ .plat_drv_data = &sgiclarka_plat_driver_data,
+ .plat_acc_addr_data = sgiclarka_acc_addr_data,
+ .acc_addr_count = ARRAY_SIZE(sgiclarka_acc_addr_data)
+};
+
+/* Initialize the secure environment */
+void plat_arm_security_setup(void)
+{
+ arm_tzc_dmc620_setup(&sgiclarka_plat_config_data);
+}