sh: Update sh timer function

Change to write/readX function and fix timer problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

2 files changed, 1 insertions, 112 deletions

diff --git a/cpu/sh2/Makefile b/cpu/sh2/Makefile
index 50f6720..e33ba0f 100644
--- a/cpu/sh2/Makefile
+++ b/cpu/sh2/Makefile
@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o
-OBJS	= cpu.o interrupts.o watchdog.o time.o # cache.o
+OBJS	= cpu.o interrupts.o watchdog.o
 
 all:	.depend $(START) $(LIB)
 
diff --git a/cpu/sh2/time.c b/cpu/sh2/time.c
deleted file mode 100644
index fcbb921..0000000
--- 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 * (CONFIG_SYS_HZ / 1000000)))
-		continue;
-}
-
-unsigned long get_tbclk(void)
-{
-	return CONFIG_SYS_HZ;
-}