Commit 69961c37 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Linus Torvalds
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[PATCH] m68k/Atari: Interrupt updates 



Misc Atari fixes:
  - initialize correct number of atari irqs
  - silence vbl interrupt until it's used by atafb
  - use mdelay() to read clock if necessary

Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent da96d0b5

arch/m68k/atari/ataints.c

+7 −2
Original line number Diff line number Diff line
@@ -332,6 +332,9 @@ static void atari_shutdown_irq(unsigned int irq) 
	atari_disable_irq(irq);

	atari_turnoff_irq(irq);

	m68k_irq_shutdown(irq);



	if (irq == IRQ_AUTO_4)

	    vectors[VEC_INT4] = falcon_hblhandler;

}



static struct irq_controller atari_irq_controller = {
@@ -356,7 +359,7 @@ static struct irq_controller atari_irq_controller = { 


void __init atari_init_IRQ(void)

{

	m68k_setup_user_interrupt(VEC_USER, 192, NULL);

	m68k_setup_user_interrupt(VEC_USER, NUM_ATARI_SOURCES - IRQ_USER, NULL);

	m68k_setup_irq_controller(&atari_irq_controller, 1, NUM_ATARI_SOURCES - 1);



	/* Initialize the MFP(s) */
@@ -403,8 +406,10 @@ void __init atari_init_IRQ(void) 
		 * gets overruns)

		 */



		if (!MACH_IS_HADES)

		if (!MACH_IS_HADES) {

			vectors[VEC_INT2] = falcon_hblhandler;

			vectors[VEC_INT4] = falcon_hblhandler;

		}

	}



	if (ATARIHW_PRESENT(PCM_8BIT) && ATARIHW_PRESENT(MICROWIRE)) {

arch/m68k/atari/time.c

+7 −2
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/init.h>

#include <linux/rtc.h>

#include <linux/bcd.h>

#include <linux/delay.h>



#include <asm/atariints.h>
@@ -212,8 +213,12 @@ int atari_tt_hwclk( int op, struct rtc_time *t ) 
     * additionally the RTC_SET bit is set to prevent an update cycle.

     */



    while( RTC_READ(RTC_FREQ_SELECT) & RTC_UIP )

    while( RTC_READ(RTC_FREQ_SELECT) & RTC_UIP ) {

	if (in_atomic() || irqs_disabled())

	    mdelay(1);

	else

	    schedule_timeout_interruptible(HWCLK_POLL_INTERVAL);

    }



    local_irq_save(flags);

    RTC_WRITE( RTC_CONTROL, ctrl | RTC_SET );

arch/m68k/kernel/ints.c

+1 −0
Original line number Diff line number Diff line
@@ -132,6 +132,7 @@ void __init m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt, 
{

	int i;



	BUG_ON(IRQ_USER + cnt >= NR_IRQS);

	m68k_first_user_vec = vec;

	for (i = 0; i < cnt; i++)

		irq_controller[IRQ_USER + i] = &user_irq_controller;