X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv7%2Fsocfpga%2Ftimer.c;h=58fc789e6451534951a169d66ecb4ceefa1ed478;hb=bcb879c0e37db1cf527ff408df93918f155012ea;hp=efa28c2ae9440e1352676ebd32942cf81af97395;hpb=582601da2f90b1850aa19f7820b1623c79b3dac6;p=u-boot

diff --git a/arch/arm/cpu/armv7/socfpga/timer.c b/arch/arm/cpu/armv7/socfpga/timer.c
index efa28c2ae9..58fc789e64 100644
--- a/arch/arm/cpu/armv7/socfpga/timer.c
+++ b/arch/arm/cpu/armv7/socfpga/timer.c
@@ -1,26 +1,13 @@
 /*
  *  Copyright (C) 2012 Altera Corporation <www.altera.com>
  *
- * 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, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/timer.h>
 
-DECLARE_GLOBAL_DATA_PTR;
-
 static const struct socfpga_timer *timer_base = (void *)CONFIG_SYS_TIMERBASE;
 
 /*
@@ -33,73 +20,3 @@ int timer_init(void)
 	writel(readl(&timer_base->ctrl) | 0x3, &timer_base->ctrl);
 	return 0;
 }
-
-static u32 read_timer(void)
-{
-	return readl(&timer_base->curr_val);
-}
-
-/*
- * Delay x useconds
- */
-void __udelay(unsigned long usec)
-{
-	unsigned long now, last;
-	/*
-	 * get the tmo value based on timer clock speed
-	 * tmo = delay required / period of timer clock
-	 */
-	long tmo = usec * CONFIG_TIMER_CLOCK_KHZ / 1000;
-
-	last = read_timer();
-	while (tmo > 0) {
-		now = read_timer();
-		if (last >= now)
-			/* normal mode (non roll) */
-			tmo -= last - now;
-		else
-			/* we have overflow of the count down timer */
-			tmo -= TIMER_LOAD_VAL - last + now;
-		last = now;
-	}
-}
-
-/*
- * Get the timer value
- */
-ulong get_timer(ulong base)
-{
-	return get_timer_masked() - base;
-}
-
-/*
- * Timer : get the time difference
- * Unit of tick is based on the CONFIG_SYS_HZ
- */
-ulong get_timer_masked(void)
-{
-	/* current tick value */
-	ulong now = read_timer() / (CONFIG_TIMER_CLOCK_KHZ/CONFIG_SYS_HZ);
-	if (gd->arch.lastinc >= now) {
-		/* normal mode (non roll) */
-		/* move stamp forward with absolute diff ticks */
-		gd->arch.tbl += gd->arch.lastinc - now;
-	} else {
-		/* we have overflow of the count down timer */
-		gd->arch.tbl += TIMER_LOAD_VAL - gd->arch.lastinc + now;
-	}
-	gd->arch.lastinc = now;
-	return gd->arch.tbl;
-}
-
-/*
- * Reset the timer
- */
-void reset_timer(void)
-{
-	/* capture current decrementer value time */
-	gd->arch.lastinc = read_timer() /
-				(CONFIG_TIMER_CLOCK_KHZ / CONFIG_SYS_HZ);
-	/* start "advancing" time stamp from 0 */
-	gd->arch.tbl = 0;
-}