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Diffstat (limited to 'arch/mips/pmcs-msp71xx/msp_irq_slp.c')
-rw-r--r--arch/mips/pmcs-msp71xx/msp_irq_slp.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/mips/pmcs-msp71xx/msp_irq_slp.c b/arch/mips/pmcs-msp71xx/msp_irq_slp.c
deleted file mode 100644
index 097a5fd3b06b..000000000000
--- a/arch/mips/pmcs-msp71xx/msp_irq_slp.c
+++ /dev/null
@@ -1,102 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * This file define the irq handler for MSP SLM subsystem interrupts.
- *
- * Copyright 2005-2006 PMC-Sierra, Inc, derived from irq_cpu.c
- * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/bitops.h>
-
-#include <asm/mipsregs.h>
-
-#include <msp_slp_int.h>
-#include <msp_regs.h>
-
-static inline void unmask_msp_slp_irq(struct irq_data *d)
-{
- unsigned int irq = d->irq;
-
- /* check for PER interrupt range */
- if (irq < MSP_PER_INTBASE)
- *SLP_INT_MSK_REG |= (1 << (irq - MSP_SLP_INTBASE));
- else
- *PER_INT_MSK_REG |= (1 << (irq - MSP_PER_INTBASE));
-}
-
-static inline void mask_msp_slp_irq(struct irq_data *d)
-{
- unsigned int irq = d->irq;
-
- /* check for PER interrupt range */
- if (irq < MSP_PER_INTBASE)
- *SLP_INT_MSK_REG &= ~(1 << (irq - MSP_SLP_INTBASE));
- else
- *PER_INT_MSK_REG &= ~(1 << (irq - MSP_PER_INTBASE));
-}
-
-/*
- * While we ack the interrupt interrupts are disabled and thus we don't need
- * to deal with concurrency issues. Same for msp_slp_irq_end.
- */
-static inline void ack_msp_slp_irq(struct irq_data *d)
-{
- unsigned int irq = d->irq;
-
- /* check for PER interrupt range */
- if (irq < MSP_PER_INTBASE)
- *SLP_INT_STS_REG = (1 << (irq - MSP_SLP_INTBASE));
- else
- *PER_INT_STS_REG = (1 << (irq - MSP_PER_INTBASE));
-}
-
-static struct irq_chip msp_slp_irq_controller = {
- .name = "MSP_SLP",
- .irq_ack = ack_msp_slp_irq,
- .irq_mask = mask_msp_slp_irq,
- .irq_unmask = unmask_msp_slp_irq,
-};
-
-void __init msp_slp_irq_init(void)
-{
- int i;
-
- /* Mask/clear interrupts. */
- *SLP_INT_MSK_REG = 0x00000000;
- *PER_INT_MSK_REG = 0x00000000;
- *SLP_INT_STS_REG = 0xFFFFFFFF;
- *PER_INT_STS_REG = 0xFFFFFFFF;
-
- /* initialize all the IRQ descriptors */
- for (i = MSP_SLP_INTBASE; i < MSP_PER_INTBASE + 32; i++)
- irq_set_chip_and_handler(i, &msp_slp_irq_controller,
- handle_level_irq);
-}
-
-void msp_slp_irq_dispatch(void)
-{
- u32 pending;
- int intbase;
-
- intbase = MSP_SLP_INTBASE;
- pending = *SLP_INT_STS_REG & *SLP_INT_MSK_REG;
-
- /* check for PER interrupt */
- if (pending == (1 << (MSP_INT_PER - MSP_SLP_INTBASE))) {
- intbase = MSP_PER_INTBASE;
- pending = *PER_INT_STS_REG & *PER_INT_MSK_REG;
- }
-
- /* check for spurious interrupt */
- if (pending == 0x00000000) {
- printk(KERN_ERR "Spurious %s interrupt?\n",
- (intbase == MSP_SLP_INTBASE) ? "SLP" : "PER");
- return;
- }
-
- /* dispatch the irq */
- do_IRQ(ffs(pending) + intbase - 1);
-}