powerpc, 8xx: remove support for 8xx

There was for long time no activity in the 8xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8xx,
so remove it (with a heavy heart, knowing that I remove
here the root of U-Boot).

Signed-off-by: Heiko Schocher <hs@denx.de>

1 files changed, 0 insertions, 278 deletions

diff --git a/arch/powerpc/cpu/mpc8xx/interrupts.c b/arch/powerpc/cpu/mpc8xx/interrupts.c
deleted file mode 100644
index 482ceecb9fb..00000000000
--- a/arch/powerpc/cpu/mpc8xx/interrupts.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * (C) Copyright 2000-2002
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#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;
-}
-
-/************************************************************************/