/*
+ * (C) Copyright 2003
+ * Texas Instruments <www.ti.com>
+ *
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2004
* Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
*
+ * (C) Copyright 2004
+ * Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
*
* 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
+ * 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
*/
#include <common.h>
-#include <arm925t.h>
-#include <configs/omap1510.h>
-
+#include <arm926ejs.h>
#include <asm/proc-armv/ptrace.h>
-extern void reset_cpu(ulong addr);
-#define TIMER_LOAD_VAL 0xffffffff
-
-/* macro to read the 32 bit timer */
-#define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+8))
-
#ifdef CONFIG_USE_IRQ
/* enable IRQ interrupts */
void enable_interrupts (void)
{
unsigned long temp;
__asm__ __volatile__("mrs %0, cpsr\n"
- "bic %0, %0, #0x80\n"
- "msr cpsr_c, %0"
- : "=r" (temp)
- : "memory");
+ "bic %0, %0, #0x80\n"
+ "msr cpsr_c, %0"
+ : "=r" (temp)
+ :
+ : "memory");
}
+
/*
* disable IRQ/FIQ interrupts
* returns true if interrupts had been enabled before we disabled them
{
unsigned long old,temp;
__asm__ __volatile__("mrs %0, cpsr\n"
- "orr %1, %0, #0xc0\n"
- "msr cpsr_c, %1"
- : "=r" (old), "=r" (temp)
- : "memory");
+ "orr %1, %0, #0xc0\n"
+ "msr cpsr_c, %1"
+ : "=r" (old), "=r" (temp)
+ :
+ : "memory");
return (old & 0x80) == 0;
}
#else
flags = condition_codes (regs);
- printf ("pc : [<%08lx>] lr : [<%08lx>]\n"
- "sp : %08lx ip : %08lx fp : %08lx\n",
+ printf ("pc : [<%08lx>] lr : [<%08lx>]\n"
+ "sp : %08lx ip : %08lx fp : %08lx\n",
instruction_pointer (regs),
regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
- printf ("r10: %08lx r9 : %08lx r8 : %08lx\n",
+ printf ("r10: %08lx r9 : %08lx r8 : %08lx\n",
regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
- printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
+ printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
- printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
+ printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
printf ("Flags: %c%c%c%c",
flags & CC_N_BIT ? 'N' : 'n',
bad_mode ();
}
-static ulong timestamp;
-static ulong lastdec;
+#ifdef CONFIG_INTEGRATOR
-/* nothing really to do with interrupts, just starts up a counter. */
-int interrupt_init (void)
-{
- int32_t val;
+ /* Timer functionality supplied by Integrator board (AP or CP) */
- *((int32_t *) (CFG_TIMERBASE + LOAD_TIM)) = TIMER_LOAD_VAL;
- val = MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE |
- (CFG_PVT << MPUTIM_PTV_BIT);
- *((int32_t *) (CFG_TIMERBASE + CNTL_TIMER)) = val;
- return (0);
-}
-
-/*
- * timer without interrupts
- */
-
-void reset_timer (void)
-{
- reset_timer_masked ();
-}
-
-ulong get_timer (ulong base)
-{
- return get_timer_masked () - base;
-}
-
-void set_timer (ulong t)
-{
- timestamp = t;
-}
-
-/* very rough timer... */
-void udelay (unsigned long usec)
-{
-#ifdef CONFIG_INNOVATOROMAP1610
-#define LOOPS_PER_MSEC 100 /* tuned on omap1610 */
- volatile int i, time_remaining = LOOPS_PER_MSEC * usec;
-
- for (i = time_remaining; i > 0; i--) {
- }
#else
- ulong tmo;
- tmo = usec / 1000;
- tmo *= CFG_HZ;
- tmo /= 1000;
- tmo += get_timer (0);
- while (get_timer_masked () < tmo)
- /*NOP*/;
-#endif
-}
-
-void reset_timer_masked (void)
-{
- /* reset time */
- lastdec = READ_TIMER;
- timestamp = 0;
-}
-
-ulong get_timer_masked (void)
-{
- ulong now = READ_TIMER; /* current tick value */
-
- if (lastdec >= now) { /* did I roll (rem decrementer) */
- /* normal mode */
- /* record amount of time since last check */
- timestamp += lastdec - now;
- } else {
- /* we have an overflow ... */
- timestamp += lastdec + TIMER_LOAD_VAL - now;
- }
- lastdec = now;
-
- return timestamp;
-}
-
-void udelay_masked (unsigned long usec)
+/* nothing really to do with interrupts, just starts up a counter. */
+int interrupt_init (void)
{
-#ifdef CONFIG_INNOVATOROMAP1610
- #define LOOPS_PER_MSEC 100 /* tuned on omap1610 */
- volatile int i, time_remaining = LOOPS_PER_MSEC*usec;
- for (i=time_remaining; i>0; i--) { }
-#else
+ extern void timer_init(void);
- ulong tmo;
+ timer_init();
- tmo = usec / 1000;
- tmo *= CFG_HZ;
- tmo /= 1000;
-
- reset_timer_masked ();
-
- while (get_timer_masked () < tmo)
- /*NOP*/;
-#endif
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
- return get_timer(0);
+ return 0;
}
-/*
- * 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)
-{
- ulong tbclk;
- tbclk = CFG_HZ;
- return tbclk;
-}
+#endif /* CONFIG_INTEGRATOR */
projects / oweals / u-boot.git / blobdiff