1 files changed, 0 insertions, 191 deletions
diff --git a/arch/sh/boards/overdrive/irq.c b/arch/sh/boards/overdrive/irq.c
deleted file mode 100644
index 5d730c70389..00000000000
--- a/arch/sh/boards/overdrive/irq.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/* 
- * Copyright (C) 2000 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License.  See linux/COPYING for more information.                            
- *
- * Looks after interrupts on the overdrive board.
- *
- * Bases on the IPR irq system
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-
-#include <asm/overdrive/overdrive.h>
-
-struct od_data {
-	int overdrive_irq;
-	int irq_mask;
-};
-
-#define NUM_EXTERNAL_IRQS 16
-#define EXTERNAL_IRQ_NOT_IN_USE (-1)
-#define EXTERNAL_IRQ_NOT_ASSIGNED (-1)
-
-/*
- * This table is used to determine what to program into the FPGA's CT register
- * for the specified Linux IRQ.
- *
- * The irq_mask gives the interrupt number from the PCI board (PCI_Int(6:0))
- * but is one greater than that because the because the FPGA treats 0
- * as disabled, a value of 1 asserts PCI_Int0, and so on.
- *
- * The overdrive_irq specifies which of the eight interrupt sources generates
- * that interrupt, and but is multiplied by four to give the bit offset into
- * the CT register.
- *
- * The seven interrupts levels (SH4 IRL's) we have available here is hardwired
- * by the EPLD. The assignments here of which PCI interrupt generates each
- * level is arbitary.
- */
-static struct od_data od_data_table[NUM_EXTERNAL_IRQS] = {
-	/*    overdrive_irq       , irq_mask */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 0 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 7},	/* 1 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 6},	/* 2 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 3 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 5},	/* 4 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 5 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 6 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 4},	/* 7 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 8 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 9 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 3},	/* 10 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 2},	/* 11 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 12 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, 1},	/* 13 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE},	/* 14 */
-	{EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}	/* 15 */
-};
-
-static void set_od_data(int overdrive_irq, int irq)
-{
-	if (irq >= NUM_EXTERNAL_IRQS || irq < 0)
-		return;
-	od_data_table[irq].overdrive_irq = overdrive_irq << 2;
-}
-
-static void enable_od_irq(unsigned int irq);
-void disable_od_irq(unsigned int irq);
-
-/* shutdown is same as "disable" */
-#define shutdown_od_irq disable_od_irq
-
-static void mask_and_ack_od(unsigned int);
-static void end_od_irq(unsigned int irq);
-
-static unsigned int startup_od_irq(unsigned int irq)
-{
-	enable_od_irq(irq);
-	return 0;		/* never anything pending */
-}
-
-static struct hw_interrupt_type od_irq_type = {
-	.typename = "Overdrive-IRQ",
-	.startup = startup_od_irq,
-	.shutdown = shutdown_od_irq,
-	.enable = enable_od_irq,
-	.disable = disable_od_irq,
-	.ack = mask_and_ack_od,
-	.end = end_od_irq
-};
-
-static void disable_od_irq(unsigned int irq)
-{
-	unsigned val, flags;
-	int overdrive_irq;
-	unsigned mask;
-
-	/* Not a valid interrupt */
-	if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
-		return;
-
-        /* Is is necessary to use a cli here? Would a spinlock not be 
-         * mroe efficient?
-         */
-	local_irq_save(flags);
-	overdrive_irq = od_data_table[irq].overdrive_irq;
-	if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) {
-		mask = ~(0x7 << overdrive_irq);
-		val = ctrl_inl(OVERDRIVE_INT_CT);
-		val &= mask;
-		ctrl_outl(val, OVERDRIVE_INT_CT);
-	}
-	local_irq_restore(flags);
-}
-
-static void enable_od_irq(unsigned int irq)
-{
-	unsigned val, flags;
-	int overdrive_irq;
-	unsigned mask;
-
-	/* Not a valid interrupt */
-	if (irq < 0 || irq >= NUM_EXTERNAL_IRQS)
-		return;
-
-	/* Set priority in OD back to original value */
-	local_irq_save(flags);
-	/* This one is not in use currently */
-	overdrive_irq = od_data_table[irq].overdrive_irq;
-	if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) {
-		val = ctrl_inl(OVERDRIVE_INT_CT);
-		mask = ~(0x7 << overdrive_irq);
-		val &= mask;
-		mask = od_data_table[irq].irq_mask << overdrive_irq;
-		val |= mask;
-		ctrl_outl(val, OVERDRIVE_INT_CT);
-	}
-	local_irq_restore(flags);
-}
-
-
-
-/* this functions sets the desired irq handler to be an overdrive type */
-static void __init make_od_irq(unsigned int irq)
-{
-	disable_irq_nosync(irq);
-	irq_desc[irq].chip = &od_irq_type;
-	disable_od_irq(irq);
-}
-
-
-static void mask_and_ack_od(unsigned int irq)
-{
-	disable_od_irq(irq);
-}
-
-static void end_od_irq(unsigned int irq)
-{
-	enable_od_irq(irq);
-}
-
-void __init init_overdrive_irq(void)
-{
-	int i;
-
-	/* Disable all interrupts */
-	ctrl_outl(0, OVERDRIVE_INT_CT);
-
-	/* Update interrupt pin mode to use encoded interrupts */
-	i = ctrl_inw(INTC_ICR);
-	i &= ~INTC_ICR_IRLM;
-	ctrl_outw(i, INTC_ICR);
-
-	for (i = 0; i < NUM_EXTERNAL_IRQS; i++) {
-		if (od_data_table[i].irq_mask != EXTERNAL_IRQ_NOT_IN_USE) {
-			make_od_irq(i);
-		} else if (i != 15) {	// Cannot use imask on level 15
-			make_imask_irq(i);
-		}
-	}
-
-	/* Set up the interrupts */
-	set_od_data(OVERDRIVE_PCI_INTA, OVERDRIVE_PCI_IRQ1);
-	set_od_data(OVERDRIVE_PCI_INTB, OVERDRIVE_PCI_IRQ2);
-	set_od_data(OVERDRIVE_AUDIO_INT, OVERDRIVE_ESS_IRQ);
-}