rockbox/firmware/target/arm/gigabeat/meg-fx/system-meg-fx.c
Greg White 5668505d6b Switch DMA wait loop to idle CPU
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11914 a1c6a512-1295-4272-9138-f99709370657
2007-01-05 04:17:25 +00:00

64 lines
1.1 KiB
C

#include "kernel.h"
#include "system.h"
#include "panic.h"
#include "lcd.h"
#include <stdio.h>
const int TIMER4_MASK = (1 << 14);
const int LCD_MASK = (1 << 16);
const int DMA0_MASK = (1 << 17);
const int DMA1_MASK = (1 << 18);
const int DMA2_MASK = (1 << 19);
const int DMA3_MASK = (1 << 20);
int system_memory_guard(int newmode)
{
(void)newmode;
return 0;
}
extern void timer4(void);
extern void dma0(void);
extern void dma1(void);
extern void dma3(void);
void irq(void)
{
int intpending = INTPND;
SRCPND = intpending; /* Clear this interrupt. */
INTPND = intpending; /* Clear this interrupt. */
/* Timer 4 */
if ((intpending & TIMER4_MASK) != 0)
timer4();
else if ((intpending & DMA0_MASK) != 0)
dma0();
else
{
/* unexpected interrupt */
}
}
void system_reboot(void)
{
WTCON = 0;
WTCNT = WTDAT = 1 ;
WTCON = 0x21;
for(;;)
;
}
void system_init(void)
{
/* Turn off un-needed devices */
/* Turn off all of the UARTS */
CLKCON &= ~( (1<<10) | (1<<11) |(1<<12) );
/* Turn off AC97 and Camera */
CLKCON &= ~( (1<<19) | (1<<20) );
}