1 files changed, 64 insertions, 0 deletions
diff --git a/plat/mediatek/drivers/emi_mpu/emi_mpu.h b/plat/mediatek/drivers/emi_mpu/emi_mpu.h
new file mode 100644
index 0000000..66a369e
--- /dev/null
+++ b/plat/mediatek/drivers/emi_mpu/emi_mpu.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef EMI_MPU_H
+#define EMI_MPU_H
+
+#include <emi_mpu_priv.h>
+#include <platform_def.h>
+
+#define NO_PROTECTION			(0)
+#define SEC_RW				(1)
+#define SEC_RW_NSEC_R			(2)
+#define SEC_RW_NSEC_W			(3)
+#define SEC_R_NSEC_R			(4)
+#define FORBIDDEN			(5)
+#define SEC_R_NSEC_RW			(6)
+
+#define LOCK				(1)
+#define UNLOCK				(0)
+
+#if (EMI_MPU_DGROUP_NUM == 1)
+#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \
+do { \
+	apc_ary[1] = 0; \
+	apc_ary[0] = \
+		(((unsigned int)  d7) << 21) | (((unsigned int)  d6) << 18) | \
+		(((unsigned int)  d5) << 15) | (((unsigned int)  d4) << 12) | \
+		(((unsigned int)  d3) <<  9) | (((unsigned int)  d2) <<  6) | \
+		(((unsigned int)  d1) <<  3) |  ((unsigned int)  d0) | \
+		((unsigned int) lock << 31); \
+} while (0)
+#elif (EMI_MPU_DGROUP_NUM == 2)
+#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \
+				d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \
+do { \
+	apc_ary[1] = \
+		(((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \
+		(((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \
+		(((unsigned int) d11) <<  9) | (((unsigned int) d10) <<  6) | \
+		(((unsigned int)  d9) <<  3) |  ((unsigned int)  d8); \
+	apc_ary[0] = \
+		(((unsigned int)  d7) << 21) | (((unsigned int)  d6) << 18) | \
+		(((unsigned int)  d5) << 15) | (((unsigned int)  d4) << 12) | \
+		(((unsigned int)  d3) <<  9) | (((unsigned int)  d2) <<  6) | \
+		(((unsigned int)  d1) <<  3) |  ((unsigned int)  d0) | \
+		((unsigned int) lock << 31); \
+} while (0)
+#endif
+
+struct emi_region_info_t {
+	unsigned long long start;
+	unsigned long long end;
+	unsigned int region;
+	unsigned int apc[EMI_MPU_DGROUP_NUM];
+};
+
+int emi_mpu_init(void);
+int emi_mpu_set_protection(struct emi_region_info_t *region_info);
+void set_emi_mpu_regions(void);
+
+#endif