1 files changed, 21 insertions, 9 deletions

diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index 98308ec1f321..c60a7e416385 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -15,6 +15,8 @@
 #include <linux/device.h>
 #include <linux/errno.h>
 #include <linux/io.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
 
 #include <asm/mach/irq.h>
 #include <asm/exception.h>
@@ -49,6 +51,7 @@
 #define TZIC_ID0        0x0FD0  /* Indentification Register 0 */
 
 void __iomem *tzic_base; /* Used as irq controller base in entry-macro.S */
+static struct irq_domain *domain;
 
 #define TZIC_NUM_IRQS 128
 
@@ -77,15 +80,14 @@ static int tzic_set_irq_fiq(unsigned int irq, unsigned int type)
 static void tzic_irq_suspend(struct irq_data *d)
 {
         struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
-        int idx = gc->irq_base >> 5;
+        int idx = d->hwirq >> 5;
 
         __raw_writel(gc->wake_active, tzic_base + TZIC_WAKEUP0(idx));
 }
 
 static void tzic_irq_resume(struct irq_data *d)
 {
-        struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
-        int idx = gc->irq_base >> 5;
+        int idx = d->hwirq >> 5;
 
         __raw_writel(__raw_readl(tzic_base + TZIC_ENSET0(idx)),
                      tzic_base + TZIC_WAKEUP0(idx));
@@ -102,11 +104,10 @@ static struct mxc_extra_irq tzic_extra_irq = {
 #endif
 };
 
-static __init void tzic_init_gc(unsigned int irq_start)
+static __init void tzic_init_gc(int idx, unsigned int irq_start)
 {
         struct irq_chip_generic *gc;
         struct irq_chip_type *ct;
-        int idx = irq_start >> 5;
 
         gc = irq_alloc_generic_chip("tzic", 1, irq_start, tzic_base,
                                     handle_level_irq);
@@ -140,7 +141,8 @@ asmlinkage void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs)
                         while (stat) {
                                 handled = 1;
                                 irqofs = fls(stat) - 1;
-                                handle_IRQ(irqofs + i * 32, regs);
+                                handle_IRQ(irq_find_mapping(domain,
+                                                irqofs + i * 32), regs);
                                 stat &= ~(1 << irqofs);
                         }
                 }
@@ -154,6 +156,8 @@ asmlinkage void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs)
  */
 void __init tzic_init_irq(void __iomem *irqbase)
 {
+        struct device_node *np;
+        int irq_base;
         int i;
 
         tzic_base = irqbase;
@@ -175,12 +179,20 @@ void __init tzic_init_irq(void __iomem *irqbase)
 
         /* all IRQ no FIQ Warning :: No selection */
 
-        for (i = 0; i < TZIC_NUM_IRQS; i += 32)
-                tzic_init_gc(i);
+        irq_base = irq_alloc_descs(-1, 0, TZIC_NUM_IRQS, numa_node_id());
+        WARN_ON(irq_base < 0);
+
+        np = of_find_compatible_node(NULL, NULL, "fsl,tzic");
+        domain = irq_domain_add_legacy(np, TZIC_NUM_IRQS, irq_base, 0,
+                                       &irq_domain_simple_ops, NULL);
+        WARN_ON(!domain);
+
+        for (i = 0; i < 4; i++, irq_base += 32)
+                tzic_init_gc(i, irq_base);
 
 #ifdef CONFIG_FIQ
         /* Initialize FIQ */
-        init_FIQ();
+        init_FIQ(FIQ_START);
 #endif
 
         pr_info("TrustZone Interrupt Controller (TZIC) initialized\n");