1 files changed, 0 insertions, 294 deletions
diff --git a/arch/ppc/cpu/mpc8xx/interrupts.c b/arch/ppc/cpu/mpc8xx/interrupts.c
deleted file mode 100644
index 5daa6b2..0000000
--- a/arch/ppc/cpu/mpc8xx/interrupts.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <mpc8xx.h>
-#include <mpc8xx_irq.h>
-#include <asm/processor.h>
-#include <commproc.h>
-
-/************************************************************************/
-
-/*
- * CPM interrupt vector functions.
- */
-struct interrupt_action {
-	interrupt_handler_t *handler;
-	void *arg;
-};
-
-static struct interrupt_action cpm_vecs[CPMVEC_NR];
-static struct interrupt_action irq_vecs[NR_IRQS];
-
-static void cpm_interrupt_init (void);
-static void cpm_interrupt (void *regs);
-
-/************************************************************************/
-
-int interrupt_init_cpu (unsigned *decrementer_count)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-	*decrementer_count = get_tbclk () / CONFIG_SYS_HZ;
-
-	/* disable all interrupts */
-	immr->im_siu_conf.sc_simask = 0;
-
-	/* Configure CPM interrupts */
-	cpm_interrupt_init ();
-
-	return (0);
-}
-
-/************************************************************************/
-
-/*
- * Handle external interrupts
- */
-void external_interrupt (struct pt_regs *regs)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-	int irq;
-	ulong simask, newmask;
-	ulong vec, v_bit;
-
-	/*
-	 * read the SIVEC register and shift the bits down
-	 * to get the irq number
-	 */
-	vec = immr->im_siu_conf.sc_sivec;
-	irq = vec >> 26;
-	v_bit = 0x80000000UL >> irq;
-
-	/*
-	 * Read Interrupt Mask Register and Mask Interrupts
-	 */
-	simask = immr->im_siu_conf.sc_simask;
-	newmask = simask & (~(0xFFFF0000 >> irq));
-	immr->im_siu_conf.sc_simask = newmask;
-
-	if (!(irq & 0x1)) {		/* External Interrupt ?     */
-		ulong siel;
-
-		/*
-		 * Read Interrupt Edge/Level Register
-		 */
-		siel = immr->im_siu_conf.sc_siel;
-
-		if (siel & v_bit) {	/* edge triggered interrupt ?   */
-			/*
-			 * Rewrite SIPEND Register to clear interrupt
-			 */
-			immr->im_siu_conf.sc_sipend = v_bit;
-		}
-	}
-
-	if (irq_vecs[irq].handler != NULL) {
-		irq_vecs[irq].handler (irq_vecs[irq].arg);
-	} else {
-		printf ("\nBogus External Interrupt IRQ %d Vector %ld\n",
-				irq, vec);
-		/* turn off the bogus interrupt to avoid it from now */
-		simask &= ~v_bit;
-	}
-	/*
-	 * Re-Enable old Interrupt Mask
-	 */
-	immr->im_siu_conf.sc_simask = simask;
-}
-
-/************************************************************************/
-
-/*
- * CPM interrupt handler
- */
-static void cpm_interrupt (void *regs)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-	uint vec;
-
-	/*
-	 * Get the vector by setting the ACK bit
-	 * and then reading the register.
-	 */
-	immr->im_cpic.cpic_civr = 1;
-	vec = immr->im_cpic.cpic_civr;
-	vec >>= 11;
-
-	if (cpm_vecs[vec].handler != NULL) {
-		(*cpm_vecs[vec].handler) (cpm_vecs[vec].arg);
-	} else {
-		immr->im_cpic.cpic_cimr &= ~(1 << vec);
-		printf ("Masking bogus CPM interrupt vector 0x%x\n", vec);
-	}
-	/*
-	 * After servicing the interrupt,
-	 * we have to remove the status indicator.
-	 */
-	immr->im_cpic.cpic_cisr |= (1 << vec);
-}
-
-/*
- * The CPM can generate the error interrupt when there is a race
- * condition between generating and masking interrupts. All we have
- * to do is ACK it and return. This is a no-op function so we don't
- * need any special tests in the interrupt handler.
- */
-static void cpm_error_interrupt (void *dummy)
-{
-}
-
-/************************************************************************/
-/*
- * Install and free an interrupt handler
- */
-void irq_install_handler (int vec, interrupt_handler_t * handler,
-						  void *arg)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-	if ((vec & CPMVEC_OFFSET) != 0) {
-		/* CPM interrupt */
-		vec &= 0xffff;
-		if (cpm_vecs[vec].handler != NULL) {
-			printf ("CPM interrupt 0x%x replacing 0x%x\n",
-				(uint) handler,
-				(uint) cpm_vecs[vec].handler);
-		}
-		cpm_vecs[vec].handler = handler;
-		cpm_vecs[vec].arg = arg;
-		immr->im_cpic.cpic_cimr |= (1 << vec);
-#if 0
-		printf ("Install CPM interrupt for vector %d ==> %p\n",
-			vec, handler);
-#endif
-	} else {
-		/* SIU interrupt */
-		if (irq_vecs[vec].handler != NULL) {
-			printf ("SIU interrupt %d 0x%x replacing 0x%x\n",
-				vec,
-				(uint) handler,
-				(uint) cpm_vecs[vec].handler);
-		}
-		irq_vecs[vec].handler = handler;
-		irq_vecs[vec].arg = arg;
-		immr->im_siu_conf.sc_simask |= 1 << (31 - vec);
-#if 0
-		printf ("Install SIU interrupt for vector %d ==> %p\n",
-			vec, handler);
-#endif
-	}
-}
-
-void irq_free_handler (int vec)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-	if ((vec & CPMVEC_OFFSET) != 0) {
-		/* CPM interrupt */
-		vec &= 0xffff;
-#if 0
-		printf ("Free CPM interrupt for vector %d ==> %p\n",
-			vec, cpm_vecs[vec].handler);
-#endif
-		immr->im_cpic.cpic_cimr &= ~(1 << vec);
-		cpm_vecs[vec].handler = NULL;
-		cpm_vecs[vec].arg = NULL;
-	} else {
-		/* SIU interrupt */
-#if 0
-		printf ("Free CPM interrupt for vector %d ==> %p\n",
-			vec, cpm_vecs[vec].handler);
-#endif
-		immr->im_siu_conf.sc_simask &= ~(1 << (31 - vec));
-		irq_vecs[vec].handler = NULL;
-		irq_vecs[vec].arg = NULL;
-	}
-}
-
-/************************************************************************/
-
-static void cpm_interrupt_init (void)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-	/*
-	 * Initialize the CPM interrupt controller.
-	 */
-
-	immr->im_cpic.cpic_cicr =
-		(CICR_SCD_SCC4 |
-		 CICR_SCC_SCC3 |
-		 CICR_SCB_SCC2 |
-		 CICR_SCA_SCC1) | ((CPM_INTERRUPT / 2) << 13) | CICR_HP_MASK;
-
-	immr->im_cpic.cpic_cimr = 0;
-
-	/*
-	 * Install the error handler.
-	 */
-	irq_install_handler (CPMVEC_ERROR, cpm_error_interrupt, NULL);
-
-	immr->im_cpic.cpic_cicr |= CICR_IEN;
-
-	/*
-	 * Install the cpm interrupt handler
-	 */
-	irq_install_handler (CPM_INTERRUPT, cpm_interrupt, NULL);
-}
-
-/************************************************************************/
-
-/*
- * timer_interrupt - gets called when the decrementer overflows,
- * with interrupts disabled.
- * Trivial implementation - no need to be really accurate.
- */
-void timer_interrupt_cpu (struct pt_regs *regs)
-{
-	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
-
-#if 0
-	printf ("*** Timer Interrupt *** ");
-#endif
-	/* Reset Timer Expired and Timers Interrupt Status */
-	immr->im_clkrstk.cark_plprcrk = KAPWR_KEY;
-	__asm__ ("nop");
-	/*
-	  Clear TEXPS (and TMIST on older chips). SPLSS (on older
-	  chips) is cleared too.
-
-	  Bitwise OR is a read-modify-write operation so ALL bits
-	  which are cleared by writing `1' would be cleared by
-	  operations like
-
-	  immr->im_clkrst.car_plprcr |= PLPRCR_TEXPS;
-
-	  The same can be achieved by simple writing of the PLPRCR
-	  to itself. If a bit value should be preserved, read the
-	  register, ZERO the bit and write, not OR, the result back.
-	*/
-	immr->im_clkrst.car_plprcr = immr->im_clkrst.car_plprcr;
-}
-
-/************************************************************************/