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>
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 @@
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;
-}