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Fix MISRA defects in SP805 driver

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Fix violations of MISRA C-2012 Rules 10.1, 10.3 and 10.4.

Change-Id: I13c6acda798c1666892f630f097a23e68748f9e4
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This commit is contained in:
Antonio Nino Diaz 2018-07-24 11:27:52 +01:00
parent e7b9886c7c
commit 354305c3cf
2 changed files with 23 additions and 21 deletions
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18
drivers/arm/sp805/sp805.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -10,17 +10,17 @@
/* Inline register access functions */
static inline void sp805_write_wdog_load(uintptr_t base, unsigned long value)
static inline void sp805_write_wdog_load(uintptr_t base, uint32_t value)
{
mmio_write_32(base + SP805_WDOG_LOAD_OFF, value);
}
static inline void sp805_write_wdog_ctrl(uintptr_t base, unsigned long value)
static inline void sp805_write_wdog_ctrl(uintptr_t base, uint32_t value)
{
mmio_write_32(base + SP805_WDOG_CTR_OFF, value);
}
static inline void sp805_write_wdog_lock(uintptr_t base, unsigned long value)
static inline void sp805_write_wdog_lock(uintptr_t base, uint32_t value)
{
mmio_write_32(base + SP805_WDOG_LOCK_OFF, value);
}
@ -28,23 +28,23 @@ static inline void sp805_write_wdog_lock(uintptr_t base, unsigned long value)
/* Public API implementation */
void sp805_start(uintptr_t base, unsigned long ticks)
void sp805_start(uintptr_t base, unsigned int ticks)
{
sp805_write_wdog_load(base, ticks);
sp805_write_wdog_ctrl(base, SP805_CTR_RESEN | SP805_CTR_INTEN);
/* Lock registers access */
sp805_write_wdog_lock(base, 0);
sp805_write_wdog_lock(base, 0U);
}
void sp805_stop(uintptr_t base)
{
sp805_write_wdog_lock(base, WDOG_UNLOCK_KEY);
sp805_write_wdog_ctrl(base, 0);
sp805_write_wdog_ctrl(base, 0U);
}
void sp805_refresh(uintptr_t base, unsigned long ticks)
void sp805_refresh(uintptr_t base, unsigned int ticks)
{
sp805_write_wdog_lock(base, WDOG_UNLOCK_KEY);
sp805_write_wdog_load(base, ticks);
sp805_write_wdog_lock(base, 0);
sp805_write_wdog_lock(base, 0U);
}

26
include/drivers/arm/sp805.h
View file

@ -1,23 +1,25 @@
/*
* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef __SP805_H__
#define __SP805_H__
#ifndef SP805_H
#define SP805_H
#include <utils_def.h>
/* SP805 register offset */
#define SP805_WDOG_LOAD_OFF 0x000
#define SP805_WDOG_CTR_OFF 0x008
#define SP805_WDOG_LOCK_OFF 0xc00
#define SP805_WDOG_LOAD_OFF UL(0x000)
#define SP805_WDOG_CTR_OFF UL(0x008)
#define SP805_WDOG_LOCK_OFF UL(0xc00)
/* Magic word to unlock the wd registers */
#define WDOG_UNLOCK_KEY 0x1ACCE551
#define WDOG_UNLOCK_KEY U(0x1ACCE551)
/* Register field definitions */
#define SP805_CTR_RESEN (1 << 1)
#define SP805_CTR_INTEN (1 << 0)
#define SP805_CTR_RESEN (U(1) << 1)
#define SP805_CTR_INTEN (U(1) << 0)
#ifndef __ASSEMBLY__
@ -25,10 +27,10 @@
/* Public high level API */
void sp805_start(uintptr_t base, unsigned long ticks);
void sp805_start(uintptr_t base, unsigned int ticks);
void sp805_stop(uintptr_t base);
void sp805_refresh(uintptr_t base, unsigned long ticks);
void sp805_refresh(uintptr_t base, unsigned int ticks);
#endif /* __ASSEMBLY__ */
#endif /* __SP805_H__ */
#endif /* SP805_H */