diff options
Diffstat (limited to 'arch/nios2/lib/clock.c')
-rw-r--r-- | arch/nios2/lib/clock.c | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/arch/nios2/lib/clock.c b/arch/nios2/lib/clock.c deleted file mode 100644 index 28aed022cc..0000000000 --- a/arch/nios2/lib/clock.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * (C) Copyright 2011 - Franck JULLIEN <elec4fun@gmail.com> - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <common.h> -#include <clock.h> -#include <init.h> -#include <asm/nios2-io.h> -#include <io.h> - -static struct nios_timer *timer = (struct nios_timer *)NIOS_SOPC_TIMER_BASE; - -static uint64_t nios_clocksource_read(void) -{ - uint64_t value; - - writew(0x5555, &timer->snapl); /* Dummy value*/ - value = (uint64_t)((readw(&timer->snaph) << 16) + readw(&timer->snapl)); - - return ~value; -} - -static struct clocksource cs = { - .read = nios_clocksource_read, - .mask = 0xffffffff, - .shift = 12, -}; - -static int clocksource_init(void) -{ - writew(0, &timer->control); - writew(0xFFFF, &timer->periodl); - writew(0xFFFF, &timer->periodh); - writew(NIOS_TIMER_CONT | NIOS_TIMER_START, &timer->control); - - cs.mult = clocksource_hz2mult(NIOS_SOPC_TIMER_FREQ, cs.shift); - - return init_clock(&cs); -} - -core_initcall(clocksource_init); - |