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-rw-r--r--include/drivers/nxp/csu/csu.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/drivers/nxp/csu/csu.h b/include/drivers/nxp/csu/csu.h
new file mode 100644
index 0000000..83f1834
--- /dev/null
+++ b/include/drivers/nxp/csu/csu.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef CSU_H
+#define CSU_H
+
+#define CSU_SEC_ACCESS_REG_OFFSET (0x0021CU)
+/* Bit mask */
+#define TZASC_BYPASS_MUX_DISABLE (0x4U)
+
+/* Macros defining access permissions to configure
+ * the regions controlled by Central Security Unit.
+ */
+enum csu_cslx_access {
+ CSU_NS_SUP_R = (0x8U),
+ CSU_NS_SUP_W = (0x80U),
+ CSU_NS_SUP_RW = (0x88U),
+ CSU_NS_USER_R = (0x4U),
+ CSU_NS_USER_W = (0x40U),
+ CSU_NS_USER_RW = (0x44U),
+ CSU_S_SUP_R = (0x2U),
+ CSU_S_SUP_W = (0x20U),
+ CSU_S_SUP_RW = (0x22U),
+ CSU_S_USER_R = (0x1U),
+ CSU_S_USER_W = (0x10U),
+ CSU_S_USER_RW = (0x11U),
+ CSU_ALL_RW = (0xffU),
+};
+
+struct csu_ns_dev_st {
+ uintptr_t ind;
+ uint32_t val;
+};
+
+void enable_layerscape_ns_access(struct csu_ns_dev_st *csu_ns_dev,
+ uint32_t num, uintptr_t nxp_csu_addr);
+
+#endif