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Diffstat (limited to 'arch/mips/cpu/xburst/timer.c')
-rw-r--r--arch/mips/cpu/xburst/timer.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/arch/mips/cpu/xburst/timer.c b/arch/mips/cpu/xburst/timer.c
deleted file mode 100644
index 79f34f0..0000000
--- a/arch/mips/cpu/xburst/timer.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Copyright (c) 2006
- * Ingenic Semiconductor, <jlwei@ingenic.cn>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <config.h>
-#include <common.h>
-#include <asm/io.h>
-
-#include <asm/jz4740.h>
-
-#define TIMER_CHAN 0
-#define TIMER_FDATA 0xffff /* Timer full data value */
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static struct jz4740_tcu *tcu = (struct jz4740_tcu *)JZ4740_TCU_BASE;
-
-void reset_timer_masked(void)
-{
- /* reset time */
- gd->arch.lastinc = readl(&tcu->tcnt0);
- gd->arch.tbl = 0;
-}
-
-ulong get_timer_masked(void)
-{
- ulong now = readl(&tcu->tcnt0);
-
- if (gd->arch.lastinc <= now)
- gd->arch.tbl += now - gd->arch.lastinc; /* normal mode */
- else {
- /* we have an overflow ... */
- gd->arch.tbl += TIMER_FDATA + now - gd->arch.lastinc;
- }
-
- gd->arch.lastinc = now;
-
- return gd->arch.tbl;
-}
-
-void udelay_masked(unsigned long usec)
-{
- ulong tmo;
- ulong endtime;
- signed long diff;
-
- /* normalize */
- if (usec >= 1000) {
- tmo = usec / 1000;
- tmo *= CONFIG_SYS_HZ;
- tmo /= 1000;
- } else {
- if (usec > 1) {
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= 1000*1000;
- } else
- tmo = 1;
- }
-
- endtime = get_timer_masked() + tmo;
-
- do {
- ulong now = get_timer_masked();
- diff = endtime - now;
- } while (diff >= 0);
-}
-
-int timer_init(void)
-{
- writel(TCU_TCSR_PRESCALE256 | TCU_TCSR_EXT_EN, &tcu->tcsr0);
-
- writel(0, &tcu->tcnt0);
- writel(0, &tcu->tdhr0);
- writel(TIMER_FDATA, &tcu->tdfr0);
-
- /* mask irqs */
- writel((1 << TIMER_CHAN) | (1 << (TIMER_CHAN + 16)), &tcu->tmsr);
- writel(1 << TIMER_CHAN, &tcu->tscr); /* enable timer clock */
- writeb(1 << TIMER_CHAN, &tcu->tesr); /* start counting up */
-
- gd->arch.lastinc = 0;
- gd->arch.tbl = 0;
-
- return 0;
-}
-
-void reset_timer(void)
-{
- reset_timer_masked();
-}
-
-ulong get_timer(ulong base)
-{
- return get_timer_masked() - base;
-}
-
-void set_timer(ulong t)
-{
- gd->arch.tbl = t;
-}
-
-void __udelay(unsigned long usec)
-{
- ulong tmo, tmp;
-
- /* normalize */
- if (usec >= 1000) {
- tmo = usec / 1000;
- tmo *= CONFIG_SYS_HZ;
- tmo /= 1000;
- } else {
- if (usec >= 1) {
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= 1000 * 1000;
- } else
- tmo = 1;
- }
-
- /* check for rollover during this delay */
- tmp = get_timer(0);
- if ((tmp + tmo) < tmp)
- reset_timer_masked(); /* timer would roll over */
- else
- tmo += tmp;
-
- while (get_timer_masked() < tmo)
- ;
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On MIPS it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
- return get_timer(0);
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On MIPS it returns the number of timer ticks per second.
- */
-ulong get_tbclk(void)
-{
- return CONFIG_SYS_HZ;
-}