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-rw-r--r--arch/arm/mach-mxs/icoll.c128
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/arm/mach-mxs/icoll.c b/arch/arm/mach-mxs/icoll.c
deleted file mode 100644
index b4d620765cf..00000000000
--- a/arch/arm/mach-mxs/icoll.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/stmp_device.h>
-#include <asm/exception.h>
-
-#define HW_ICOLL_VECTOR 0x0000
-#define HW_ICOLL_LEVELACK 0x0010
-#define HW_ICOLL_CTRL 0x0020
-#define HW_ICOLL_STAT_OFFSET 0x0070
-#define HW_ICOLL_INTERRUPTn_SET(n) (0x0124 + (n) * 0x10)
-#define HW_ICOLL_INTERRUPTn_CLR(n) (0x0128 + (n) * 0x10)
-#define BM_ICOLL_INTERRUPTn_ENABLE 0x00000004
-#define BV_ICOLL_LEVELACK_IRQLEVELACK__LEVEL0 0x1
-
-#define ICOLL_NUM_IRQS 128
-
-static void __iomem *icoll_base;
-static struct irq_domain *icoll_domain;
-
-static void icoll_ack_irq(struct irq_data *d)
-{
- /*
- * The Interrupt Collector is able to prioritize irqs.
- * Currently only level 0 is used. So acking can use
- * BV_ICOLL_LEVELACK_IRQLEVELACK__LEVEL0 unconditionally.
- */
- __raw_writel(BV_ICOLL_LEVELACK_IRQLEVELACK__LEVEL0,
- icoll_base + HW_ICOLL_LEVELACK);
-}
-
-static void icoll_mask_irq(struct irq_data *d)
-{
- __raw_writel(BM_ICOLL_INTERRUPTn_ENABLE,
- icoll_base + HW_ICOLL_INTERRUPTn_CLR(d->hwirq));
-}
-
-static void icoll_unmask_irq(struct irq_data *d)
-{
- __raw_writel(BM_ICOLL_INTERRUPTn_ENABLE,
- icoll_base + HW_ICOLL_INTERRUPTn_SET(d->hwirq));
-}
-
-static struct irq_chip mxs_icoll_chip = {
- .irq_ack = icoll_ack_irq,
- .irq_mask = icoll_mask_irq,
- .irq_unmask = icoll_unmask_irq,
-};
-
-asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs)
-{
- u32 irqnr;
-
- do {
- irqnr = __raw_readl(icoll_base + HW_ICOLL_STAT_OFFSET);
- if (irqnr != 0x7f) {
- __raw_writel(irqnr, icoll_base + HW_ICOLL_VECTOR);
- irqnr = irq_find_mapping(icoll_domain, irqnr);
- handle_IRQ(irqnr, regs);
- continue;
- }
- break;
- } while (1);
-}
-
-static int icoll_irq_domain_map(struct irq_domain *d, unsigned int virq,
- irq_hw_number_t hw)
-{
- irq_set_chip_and_handler(virq, &mxs_icoll_chip, handle_level_irq);
- set_irq_flags(virq, IRQF_VALID);
-
- return 0;
-}
-
-static struct irq_domain_ops icoll_irq_domain_ops = {
- .map = icoll_irq_domain_map,
- .xlate = irq_domain_xlate_onecell,
-};
-
-static void __init icoll_of_init(struct device_node *np,
- struct device_node *interrupt_parent)
-{
- icoll_base = of_iomap(np, 0);
- WARN_ON(!icoll_base);
-
- /*
- * Interrupt Collector reset, which initializes the priority
- * for each irq to level 0.
- */
- stmp_reset_block(icoll_base + HW_ICOLL_CTRL);
-
- icoll_domain = irq_domain_add_linear(np, ICOLL_NUM_IRQS,
- &icoll_irq_domain_ops, NULL);
- WARN_ON(!icoll_domain);
-}
-
-static const struct of_device_id icoll_of_match[] __initconst = {
- {.compatible = "fsl,icoll", .data = icoll_of_init},
- { /* sentinel */ }
-};
-
-void __init icoll_init_irq(void)
-{
- of_irq_init(icoll_of_match);
-}