Files
rtems/bsps/arm/lpc32xx/start/bspstart.c
Sebastian Huber 65f868cac6 Add _CPU_Counter_frequency()
Add rtems_counter_frequency() API function.  Use it to initialize the
counter value converter via the new system initialization step
(RTEMS_SYSINIT_CPU_COUNTER).  This decouples the counter implementation
and the counter converter.  It avoids an unnecessary pull in of the
64-bit integer division from libgcc.

Update #3456.
2018-06-15 13:02:44 +02:00

43 lines
724 B
C

/**
* @file
*
* @ingroup arm_lpc32xx
*
* @brief Startup code.
*/
/*
* Copyright (c) 2009-2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Obere Lagerstr. 30
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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.
*/
#include <rtems/counter.h>
#include <bsp.h>
#include <bsp/bootcard.h>
#include <bsp/irq-generic.h>
uint32_t _CPU_Counter_frequency(void)
{
return LPC32XX_PERIPH_CLK;
}
CPU_Counter_ticks _CPU_Counter_read(void)
{
return lpc32xx_timer();
}
void bsp_start(void)
{
bsp_interrupt_initialize();
}