mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
afad40299e
This stuff has been rotting in the tree for a year now. Remove it. Signed-off-by: Marek Vasut <marex@denx.de>
162 lines
3.8 KiB
C
162 lines
3.8 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Alex Zuepke <azu@sysgo.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 <clps7111.h>
|
|
#include <asm/proc-armv/ptrace.h>
|
|
#include <asm/hardware.h>
|
|
|
|
#ifndef CONFIG_NETARM
|
|
/* we always count down the max. */
|
|
#define TIMER_LOAD_VAL 0xffff
|
|
/* macro to read the 16 bit timer */
|
|
#define READ_TIMER (IO_TC1D & 0xffff)
|
|
|
|
#else
|
|
#define IRQEN (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_INTR_ENABLE))
|
|
#define TM2CTRL (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_CONTROL))
|
|
#define TM2STAT (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_STATUS))
|
|
#define TIMER_LOAD_VAL NETARM_GEN_TSTAT_CTC_MASK
|
|
#define READ_TIMER (TM2STAT & NETARM_GEN_TSTAT_CTC_MASK)
|
|
#endif
|
|
|
|
#ifdef CONFIG_USE_IRQ
|
|
void do_irq (struct pt_regs *pt_regs)
|
|
{
|
|
#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
|
|
/* No do_irq() for IntegratorAP/CM720T as yet */
|
|
#else
|
|
#error do_irq() not defined for this CPU type
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
|
|
/* Use IntegratorAP routines in board/integratorap.c */
|
|
#else
|
|
|
|
static ulong timestamp;
|
|
static ulong lastdec;
|
|
|
|
int timer_init (void)
|
|
{
|
|
#if defined(CONFIG_NETARM)
|
|
/* disable all interrupts */
|
|
IRQEN = 0;
|
|
|
|
/* operate timer 2 in non-prescale mode */
|
|
TM2CTRL = ( NETARM_GEN_TIMER_SET_HZ(CONFIG_SYS_HZ) |
|
|
NETARM_GEN_TCTL_ENABLE |
|
|
NETARM_GEN_TCTL_INIT_COUNT(TIMER_LOAD_VAL));
|
|
|
|
/* set timer 2 counter */
|
|
lastdec = TIMER_LOAD_VAL;
|
|
#elif defined(CONFIG_TEGRA)
|
|
/* No timer routines for tegra as yet */
|
|
lastdec = 0;
|
|
#else
|
|
#error No timer_init() defined for this CPU type
|
|
#endif
|
|
timestamp = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
#endif /* ! IntegratorAP */
|
|
|
|
/*
|
|
* timer without interrupts
|
|
*/
|
|
|
|
|
|
#if defined(CONFIG_NETARM)
|
|
|
|
ulong get_timer (ulong base)
|
|
{
|
|
return get_timer_masked () - base;
|
|
}
|
|
|
|
void __udelay (unsigned long usec)
|
|
{
|
|
ulong tmo;
|
|
|
|
tmo = usec / 1000;
|
|
tmo *= CONFIG_SYS_HZ;
|
|
tmo /= 1000;
|
|
|
|
tmo += get_timer (0);
|
|
|
|
while (get_timer_masked () < tmo)
|
|
}
|
|
|
|
ulong get_timer_masked (void)
|
|
{
|
|
ulong now = READ_TIMER;
|
|
|
|
if (lastdec >= now) {
|
|
/* normal mode */
|
|
timestamp += lastdec - now;
|
|
} else {
|
|
/* we have an overflow ... */
|
|
timestamp += lastdec + TIMER_LOAD_VAL - now;
|
|
}
|
|
lastdec = now;
|
|
|
|
return timestamp;
|
|
}
|
|
|
|
void udelay_masked (unsigned long usec)
|
|
{
|
|
ulong tmo;
|
|
ulong endtime;
|
|
signed long diff;
|
|
|
|
if (usec >= 1000) {
|
|
tmo = usec / 1000;
|
|
tmo *= CONFIG_SYS_HZ;
|
|
tmo /= 1000;
|
|
} else {
|
|
tmo = usec * CONFIG_SYS_HZ;
|
|
tmo /= (1000*1000);
|
|
}
|
|
|
|
endtime = get_timer_masked () + tmo;
|
|
|
|
do {
|
|
ulong now = get_timer_masked ();
|
|
diff = endtime - now;
|
|
} while (diff >= 0);
|
|
}
|
|
|
|
#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
|
|
/* No timer routines for IntegratorAP/CM720T as yet */
|
|
#elif defined(CONFIG_TEGRA)
|
|
/* No timer routines for tegra as yet */
|
|
#else
|
|
#error Timer routines not defined for this CPU type
|
|
#endif
|