diff options
Diffstat (limited to 'bsps/arm/include/bsp/arm-a9mpcore-clock.h')
| -rw-r--r-- | bsps/arm/include/bsp/arm-a9mpcore-clock.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/bsps/arm/include/bsp/arm-a9mpcore-clock.h b/bsps/arm/include/bsp/arm-a9mpcore-clock.h new file mode 100644 index 0000000000..9a8c653801 --- /dev/null +++ b/bsps/arm/include/bsp/arm-a9mpcore-clock.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2013 Chris Johns <chrisj@rtems.org>. All rights reserved. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef LIBBSP_ARM_SHARED_ARM_A9MPCORE_CLOCK_H +#define LIBBSP_ARM_SHARED_ARM_A9MPCORE_CLOCK_H + +#include <rtems/counter.h> + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +/* + * Return the peripheral clock. For systems such as the zynq this + * is controlled by the PL logic generation and can vary. Provide this + * function in your application to override the BSP default. + */ +uint32_t a9mpcore_clock_periphclk(void); + +/** + * @brief Do early clock initialization so that the CPU counter conversion + * works. + */ +static inline void a9mpcore_clock_initialize_early(void) +{ + rtems_counter_initialize_converter(a9mpcore_clock_periphclk()); +} + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* LIBBSP_ARM_SHARED_ARM_A9MPCORE_CLOCK_H */ |