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authorNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>2008-11-20 16:44:42 +0900
committerNobuhiro Iwamatsu <iwamatsu@nigauri.org>2008-12-10 23:11:35 +0900
commite9d5f35497885b3c65d494d09a525d443dcccd3b (patch)
treee901d5beed8b8faa66bbe7b797db79fde5402a6a /cpu/sh3/time.c
parentb81786cff476c41e332eaeb679158f6527cd67d4 (diff)
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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>
Diffstat (limited to 'cpu/sh3/time.c')
-rw-r--r--cpu/sh3/time.c103
1 files changed, 0 insertions, 103 deletions
diff --git a/cpu/sh3/time.c b/cpu/sh3/time.c
deleted file mode 100644
index aab3659..0000000
--- a/cpu/sh3/time.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * (C) Copyright 2007
- * Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
- *
- * (C) Copyright 2007
- * Nobobuhiro Iwamatsu <iwamatsu@nigauri.org>
- *
- * (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/processor.h>
-#include <asm/io.h>
-
-#define TMU_MAX_COUNTER (~0UL)
-
-static void tmu_timer_start(unsigned int timer)
-{
- if (timer > 2)
- return;
-
- outb(inb(TSTR) | (1 << timer), TSTR);
-}
-
-static void tmu_timer_stop(unsigned int timer)
-{
- u8 val = inb(TSTR);
-
- if (timer > 2)
- return;
- outb(val & ~(1 << timer), TSTR);
-}
-
-int timer_init(void)
-{
- /* Divide clock by 4 */
- outw(0, TCR0);
-
- tmu_timer_stop(0);
- tmu_timer_start(0);
- return 0;
-}
-
-/*
- In theory we should return a true 64bit value (ie something that doesn't
- overflow). However, we don't. Therefore if TMU runs at fastest rate of
- 6.75 MHz this value will wrap after u-boot has been running for approx
- 10 minutes.
-*/
-unsigned long long get_ticks(void)
-{
- return (0 - inl(TCNT0));
-}
-
-unsigned long get_timer(unsigned long base)
-{
- return ((0 - inl(TCNT0)) - base);
-}
-
-void set_timer(unsigned long t)
-{
- outl(0 - t, TCNT0);
-}
-
-void reset_timer(void)
-{
- tmu_timer_stop(0);
- set_timer(0);
- tmu_timer_start(0);
-}
-
-void udelay(unsigned long usec)
-{
- unsigned int start = get_timer(0);
- unsigned int end = start + (usec * ((CONFIG_SYS_HZ + 500000) / 1000000));
-
- while (get_timer(0) < end)
- continue;
-}
-
-unsigned long get_tbclk(void)
-{
- return CONFIG_SYS_HZ;
-}