* (C) Copyright 2007
* Sascha Hauer, Pengutronix
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/imx-regs.h>
+#include <asm/arch/clock.h>
#include <div64.h>
#include <watchdog.h>
#include <asm/io.h>
static inline unsigned long long tick_to_time(unsigned long long tick)
{
tick *= CONFIG_SYS_HZ;
- do_div(tick, CONFIG_MX31_CLK32);
+ do_div(tick, MXC_CLK32);
return tick;
}
static inline unsigned long long time_to_tick(unsigned long long time)
{
- time *= CONFIG_MX31_CLK32;
+ time *= MXC_CLK32;
do_div(time, CONFIG_SYS_HZ);
return time;
}
static inline unsigned long long us_to_tick(unsigned long long us)
{
- us = us * CONFIG_MX31_CLK32 + 999999;
+ us = us * MXC_CLK32 + 999999;
do_div(us, 1000000);
return us;
}
#else
/* ~2% error */
-#define TICK_PER_TIME ((CONFIG_MX31_CLK32 + CONFIG_SYS_HZ / 2) \
- / CONFIG_SYS_HZ)
-#define US_PER_TICK (1000000 / CONFIG_MX31_CLK32)
+#define TICK_PER_TIME ((MXC_CLK32 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ)
+#define US_PER_TICK (1000000 / MXC_CLK32)
static inline unsigned long long tick_to_time(unsigned long long tick)
{
{
ulong now = GPTCNT; /* current tick value */
- if (now >= gd->lastinc) /* normal mode (non roll) */
+ if (now >= gd->arch.lastinc) /* normal mode (non roll) */
/* move stamp forward with absolut diff ticks */
- gd->tbl += (now - gd->lastinc);
+ gd->arch.tbl += (now - gd->arch.lastinc);
else /* we have rollover of incrementer */
- gd->tbl += (0xFFFFFFFF - gd->lastinc) + now;
- gd->lastinc = now;
- return gd->tbl;
+ gd->arch.tbl += (0xFFFFFFFF - gd->arch.lastinc) + now;
+ gd->arch.lastinc = now;
+ return gd->arch.tbl;
}
ulong get_timer_masked(void)
{
/*
* get_ticks() returns a long long (64 bit), it wraps in
- * 2^64 / CONFIG_MX31_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~
+ * 2^64 / MXC_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~
* 5 * 10^9 days... and get_ticks() * CONFIG_SYS_HZ wraps in
* 5 * 10^6 days - long enough.
*/
/*NOP*/;
}
-void reset_cpu(ulong addr)
-{
- struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE;
- wdog->wcr = WDOG_ENABLE;
- while (1)
- ;
-}
-
-#ifdef CONFIG_HW_WATCHDOG
-void mxc_hw_watchdog_enable(void)
-{
- struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE;
- u16 secs;
-
- /*
- * The timer watchdog can be set between
- * 0.5 and 128 Seconds. If not defined
- * in configuration file, sets 64 Seconds
- */
-#ifdef CONFIG_SYS_WD_TIMER_SECS
- secs = (CONFIG_SYS_WD_TIMER_SECS << 1) & 0xFF;
- if (!secs) secs = 1;
-#else
- secs = 64;
-#endif
- setbits_le16(&wdog->wcr, (secs << WDOG_WT_SHIFT) | WDOG_ENABLE
- | WDOG_WDZST);
-}
-
-
-void mxc_hw_watchdog_reset(void)
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
{
- struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE;
-
- writew(0x5555, &wdog->wsr);
- writew(0xAAAA, &wdog->wsr);
+ return MXC_CLK32;
}
-#endif