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Diffstat (limited to 'cpu/sh2/time.c')
| -rw-r--r-- | cpu/sh2/time.c | 111 | 
1 files changed, 0 insertions, 111 deletions
diff --git a/cpu/sh2/time.c b/cpu/sh2/time.c deleted file mode 100644 index d6eb0cb10..000000000 --- a/cpu/sh2/time.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * Copyright (C) 2007,2008 Nobobuhiro Iwamatsu <iwamatsu@nigauri.org> - * Copyright (C) 2008 Renesas Solutions Corp. - * - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/processor.h> - -#define CMT_CMCSR_INIT  0x0001	/* PCLK/32 */ -#define CMT_CMCSR_CALIB 0x0000 -#define CMT_MAX_COUNTER (0xFFFFFFFF) -#define CMT_TIMER_RESET (0xFFFF) - -static vu_long cmt0_timer; - -static void cmt_timer_start(unsigned int timer) -{ -	writew(readw(CMSTR) | 0x01, CMSTR); -} - -static void cmt_timer_stop(unsigned int timer) -{ -	writew(readw(CMSTR) & ~0x01, CMSTR); -} - -int timer_init(void) -{ -	cmt0_timer = 0; -	/* Divide clock by 32 */ -	readw(CMCSR_0); -	writew(CMT_CMCSR_INIT, CMCSR_0); - -	/* User Device 0 only */ -	cmt_timer_stop(0); -	set_timer(CMT_TIMER_RESET); -	cmt_timer_start(0); - -	return 0; -} - -unsigned long long get_ticks(void) -{ -	return cmt0_timer; -} - -static vu_long cmcnt; -ulong get_timer(ulong base) -{ -	ulong data = readw(CMCNT_0); - -	if (data >= cmcnt) -		cmcnt = data - cmcnt; -	else -		cmcnt = (CMT_TIMER_RESET - cmcnt) + data; - -	if ((cmt0_timer + cmcnt) > CMT_MAX_COUNTER) -		cmt0_timer = ((cmt0_timer + cmcnt) - CMT_MAX_COUNTER); -	else -		cmt0_timer += cmcnt; - -	cmcnt = data; -	return cmt0_timer - base; -} - -void set_timer(ulong t) -{ -	writew((u16) t, CMCOR_0); -} - -void reset_timer(void) -{ -	cmt_timer_stop(0); -	set_timer(CMT_TIMER_RESET); -	cmt0_timer = 0; -	cmt_timer_start(0); -} - -void udelay(unsigned long usec) -{ -	unsigned int start = get_timer(0); - -	while (get_timer((ulong) start) < (usec * (CFG_HZ / 1000000))) -		continue; -} - -unsigned long get_tbclk(void) -{ -	return CFG_HZ; -}  |