plat/sgi: allow access to nor2 flash and system registers from s-el0
Allow the access of system registers and nor2 flash memory region
from s-el0. This allows the secure parititions residing at s-el0
to access these memory regions.
Signed-off-by: Thomas Abraham <thomas.abraham@arm.com>
Change-Id: I3887a86770de806323fbde0d20fdc96eec6e0c3c
diff --git a/plat/arm/css/sgi/include/sgi_soc_platform_def.h b/plat/arm/css/sgi/include/sgi_soc_platform_def.h
index d7a839a..405d62f 100644
--- a/plat/arm/css/sgi/include/sgi_soc_platform_def.h
+++ b/plat/arm/css/sgi/include/sgi_soc_platform_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -12,4 +12,22 @@
#include <plat/arm/board/common/v2m_def.h>
#include <plat/arm/soc/common/soc_css_def.h>
+/* Map the System registers to access from S-EL0 */
+#define CSS_SYSTEMREG_DEVICE_BASE (0x1C010000)
+#define CSS_SYSTEMREG_DEVICE_SIZE (0x00010000)
+#define PLAT_ARM_SECURE_MAP_SYSTEMREG MAP_REGION_FLAT( \
+ CSS_SYSTEMREG_DEVICE_BASE, \
+ CSS_SYSTEMREG_DEVICE_SIZE, \
+ (MT_DEVICE | MT_RW | \
+ MT_SECURE | MT_USER))
+
+/* Map the NOR2 Flash to access from S-EL0 */
+#define CSS_NOR2_FLASH_DEVICE_BASE (0x10000000)
+#define CSS_NOR2_FLASH_DEVICE_SIZE (0x04000000)
+#define PLAT_ARM_SECURE_MAP_NOR2 MAP_REGION_FLAT( \
+ CSS_NOR2_FLASH_DEVICE_BASE, \
+ CSS_NOR2_FLASH_DEVICE_SIZE, \
+ (MT_DEVICE | MT_RW | \
+ MT_SECURE | MT_USER))
+
#endif /* SGI_SOC_PLATFORM_DEF_H */