LCOV - code coverage report
Current view: top level - arch/arm/kernel - arch_timer.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1 12 8.3 %
Date: 2014-04-16 Functions: 1 3 33.3 %
Branches: 0 2 0.0 %

           Branch data     Line data    Source code
       1                 :            : /*
       2                 :            :  *  linux/arch/arm/kernel/arch_timer.c
       3                 :            :  *
       4                 :            :  *  Copyright (C) 2011 ARM Ltd.
       5                 :            :  *  All Rights Reserved
       6                 :            :  *
       7                 :            :  * This program is free software; you can redistribute it and/or modify
       8                 :            :  * it under the terms of the GNU General Public License version 2 as
       9                 :            :  * published by the Free Software Foundation.
      10                 :            :  */
      11                 :            : #include <linux/init.h>
      12                 :            : #include <linux/types.h>
      13                 :            : #include <linux/errno.h>
      14                 :            : 
      15                 :            : #include <asm/delay.h>
      16                 :            : 
      17                 :            : #include <clocksource/arm_arch_timer.h>
      18                 :            : 
      19                 :          0 : static unsigned long arch_timer_read_counter_long(void)
      20                 :            : {
      21                 :   23816656 :         return arch_timer_read_counter();
      22                 :            : }
      23                 :            : 
      24                 :            : static struct delay_timer arch_delay_timer;
      25                 :            : 
      26                 :          0 : static void __init arch_timer_delay_timer_register(void)
      27                 :            : {
      28                 :            :         /* Use the architected timer for the delay loop. */
      29                 :          0 :         arch_delay_timer.read_current_timer = arch_timer_read_counter_long;
      30                 :          0 :         arch_delay_timer.freq = arch_timer_get_rate();
      31                 :          0 :         register_current_timer_delay(&arch_delay_timer);
      32                 :          0 : }
      33                 :            : 
      34                 :          0 : int __init arch_timer_arch_init(void)
      35                 :            : {
      36                 :          0 :         u32 arch_timer_rate = arch_timer_get_rate();
      37                 :            : 
      38         [ #  # ]:          0 :         if (arch_timer_rate == 0)
      39                 :            :                 return -ENXIO;
      40                 :            : 
      41                 :          0 :         arch_timer_delay_timer_register();
      42                 :            : 
      43                 :          0 :         return 0;
      44                 :            : }

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