ARM: mxs: move icoll driver into drivers/irqchip

Move icoll.c into drivers/irqchip as irq-mxs.c, and along with the
renaming, change the driver to use IRQCHIP_DECLARE.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

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);
-}