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authorGary Jennejohn <garyj@pollux.denx.de>2007-01-24 12:16:56 +0100
committerGary Jennejohn <garyj@pollux.denx.de>2007-01-24 12:16:56 +0100
commit6bd2447ee47ee23c18d2b3c7ccd5a20f7626f5b3 (patch)
treeb002914fc995346cb06a8f79dbb100c5e9164cd6 /cpu/arm720t/interrupts.c
parentb78bb469f536b357ee21c54f40201dbe4b201ac3 (diff)
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Add port for the lpc2292sodimm evaluation board from EmbeddedArtists
Diffstat (limited to 'cpu/arm720t/interrupts.c')
-rw-r--r--cpu/arm720t/interrupts.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/cpu/arm720t/interrupts.c b/cpu/arm720t/interrupts.c
index da62502..8f32124 100644
--- a/cpu/arm720t/interrupts.c
+++ b/cpu/arm720t/interrupts.c
@@ -36,6 +36,12 @@
#define TIMER_LOAD_VAL 0xffff
/* macro to read the 16 bit timer */
#define READ_TIMER (IO_TC1D & 0xffff)
+
+#ifdef CONFIG_LPC2292
+#undef READ_TIMER
+#define READ_TIMER (0xFFFFFFFF - GET32(T0TC))
+#endif
+
#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))
@@ -195,6 +201,13 @@ void do_irq (struct pt_regs *pt_regs)
}
#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
/* No do_irq() for IntegratorAP/CM720T as yet */
+#elif defined(CONFIG_LPC2292)
+
+ void (*pfnct)(void);
+
+ pfnct = (void (*)(void))VICVectAddr;
+
+ (*pfnct)();
#else
#error do_irq() not defined for this CPU type
#endif
@@ -293,6 +306,13 @@ int interrupt_init (void)
/* Start timer */
SET_REG( REG_TMOD, TM0_RUN);
+#elif defined(CONFIG_LPC2292)
+ PUT32(T0IR, 0); /* disable all timer0 interrupts */
+ PUT32(T0TCR, 0); /* disable timer0 */
+ PUT32(T0PR, CFG_SYS_CLK_FREQ / CFG_HZ);
+ PUT32(T0MCR, 0);
+ PUT32(T0TC, 0);
+ PUT32(T0TCR, 1); /* enable timer0 */
#else
#error No interrupt_init() defined for this CPU type
@@ -309,7 +329,7 @@ int interrupt_init (void)
*/
-#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_NETARM) || defined(CONFIG_ARMADILLO)
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_NETARM) || defined(CONFIG_ARMADILLO) || defined(CONFIG_LPC2292)
void reset_timer (void)
{
@@ -337,7 +357,12 @@ void udelay (unsigned long usec)
tmo += get_timer (0);
while (get_timer_masked () < tmo)
+#ifdef CONFIG_LPC2292
+ /* GJ - not sure whether this is really needed or a misunderstanding */
+ __asm__ __volatile__(" nop");
+#else
/*NOP*/;
+#endif
}
void reset_timer_masked (void)