summaryrefslogtreecommitdiffstats
path: root/arch/arm/cpu/armv7/mx5/timer.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/cpu/armv7/mx5/timer.c')
-rw-r--r--arch/arm/cpu/armv7/mx5/timer.c109
1 files changed, 0 insertions, 109 deletions
diff --git a/arch/arm/cpu/armv7/mx5/timer.c b/arch/arm/cpu/armv7/mx5/timer.c
deleted file mode 100644
index 2544b08761..0000000000
--- a/arch/arm/cpu/armv7/mx5/timer.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * (C) Copyright 2007
- * Sascha Hauer, Pengutronix
- *
- * (C) Copyright 2009 Freescale Semiconductor, Inc.
- *
- * 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/arch/imx-regs.h>
-
-/* General purpose timers registers */
-struct mxc_gpt {
- unsigned int control;
- unsigned int prescaler;
- unsigned int status;
- unsigned int nouse[6];
- unsigned int counter;
-};
-
-static struct mxc_gpt *cur_gpt = (struct mxc_gpt *)GPT1_BASE_ADDR;
-
-/* General purpose timers bitfields */
-#define GPTCR_SWR (1<<15) /* Software reset */
-#define GPTCR_FRR (1<<9) /* Freerun / restart */
-#define GPTCR_CLKSOURCE_32 (4<<6) /* Clock source */
-#define GPTCR_TEN (1) /* Timer enable */
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#define timestamp (gd->tbl)
-#define lastinc (gd->lastinc)
-
-int timer_init(void)
-{
- int i;
- ulong val;
-
- /* setup GP Timer 1 */
- __raw_writel(GPTCR_SWR, &cur_gpt->control);
-
- /* We have no udelay by now */
- for (i = 0; i < 100; i++)
- __raw_writel(0, &cur_gpt->control);
-
- __raw_writel(0, &cur_gpt->prescaler); /* 32Khz */
-
- /* Freerun Mode, PERCLK1 input */
- i = __raw_readl(&cur_gpt->control);
- __raw_writel(i | GPTCR_CLKSOURCE_32 | GPTCR_TEN, &cur_gpt->control);
-
- val = __raw_readl(&cur_gpt->counter);
- lastinc = val / (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ);
- timestamp = 0;
-
- return 0;
-}
-
-ulong get_timer_masked(void)
-{
- ulong val = __raw_readl(&cur_gpt->counter);
- val /= (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ);
- if (val >= lastinc)
- timestamp += (val - lastinc);
- else
- timestamp += ((0xFFFFFFFF / (CONFIG_SYS_MX5_CLK32 / CONFIG_SYS_HZ))
- - lastinc) + val;
- lastinc = val;
- return timestamp;
-}
-
-ulong get_timer(ulong base)
-{
- return get_timer_masked() - base;
-}
-
-/* delay x useconds AND preserve advance timestamp value */
-void __udelay(unsigned long usec)
-{
- unsigned long now, start, tmo;
- tmo = usec * (CONFIG_SYS_MX5_CLK32 / 1000) / 1000;
-
- if (!tmo)
- tmo = 1;
-
- now = start = readl(&cur_gpt->counter);
-
- while ((now - start) < tmo)
- now = readl(&cur_gpt->counter);
-
-}
OpenPOWER on IntegriCloud