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/*
* CAAM Security Violation Handler
* Copyright (C) 2012-2015 Freescale Semiconductor, Inc., All Rights Reserved
*/
#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 */
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