1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/crypto/caam/secvio.h b/drivers/crypto/caam/secvio.h
new file mode 100644
index 000000000000..a7a245a3d7c9
--- /dev/null
+++ b/drivers/crypto/caam/secvio.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * CAAM Security Violation Handler
+ *
+ * Copyright 2012-2015 Freescale Semiconductor, Inc.
+ * Copyright 2016-2019 NXP
+ */
+
+#ifndef SECVIO_H
+#define SECVIO_H
+
+#include "snvsregs.h"
+
+
+/*
+ * Defines the published interfaces to install/remove application-specified
+ * handlers for catching violations
+ */
+
+#define MAX_SECVIO_SOURCES 6
+
+/* these are the untranslated causes */
+enum secvio_cause {
+	SECVIO_CAUSE_SOURCE_0,
+	SECVIO_CAUSE_SOURCE_1,
+	SECVIO_CAUSE_SOURCE_2,
+	SECVIO_CAUSE_SOURCE_3,
+	SECVIO_CAUSE_SOURCE_4,
+	SECVIO_CAUSE_SOURCE_5
+};
+
+/* These are common "recommended" cause definitions for most devices */
+#define SECVIO_CAUSE_CAAM_VIOLATION	SECVIO_CAUSE_SOURCE_0
+#define SECVIO_CAUSE_JTAG_ALARM		SECVIO_CAUSE_SOURCE_1
+#define SECVIO_CAUSE_WATCHDOG		SECVIO_CAUSE_SOURCE_2
+#define SECVIO_CAUSE_EXTERNAL_BOOT	SECVIO_CAUSE_SOURCE_4
+#define SECVIO_CAUSE_TAMPER_DETECT	SECVIO_CAUSE_SOURCE_5
+
+int snvs_secvio_install_handler(struct device *dev, enum secvio_cause cause,
+				void (*handler)(struct device *dev, u32 cause,
+						void *ext),
+				u8 *cause_description, void *ext);
+int snvs_secvio_remove_handler(struct device *dev, enum  secvio_cause cause);
+
+/*
+ * Private data definitions for the secvio "driver"
+ */
+
+struct secvio_int_src {
+	const u8 *intname;	/* Points to a descriptive name for source */
+	void *ext;		/* Extended data to pass to the handler */
+	void (*handler)(struct device *dev, u32 cause, void *ext);
+};
+
+struct snvs_secvio_drv_private {
+	struct platform_device *pdev;
+	spinlock_t svlock ____cacheline_aligned;
+	struct tasklet_struct irqtask[NR_CPUS];
+	struct snvs_full __iomem *svregs;	/* both HP and LP domains */
+	struct clk *clk;
+	int irq;
+	u32 irqcause; /* stashed cause of violation interrupt */
+
+	/* Registered handlers for each violation */
+	struct secvio_int_src intsrc[MAX_SECVIO_SOURCES];
+
+};
+
+#endif /* SECVIO_H */