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-rw-r--r--arch/arm/mach-tegra/irq.c54
1 files changed, 16 insertions, 38 deletions
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 4330d8995b27..567b75c4c67b 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -1,8 +1,8 @@
1/* 1/*
2 * Copyright (C) 2010 Google, Inc. 2 * Copyright (C) 2011 Google, Inc.
3 * 3 *
4 * Author: 4 * Author:
5 * Colin Cross <ccross@google.com> 5 * Colin Cross <ccross@android.com>
6 * 6 *
7 * Copyright (C) 2010, NVIDIA Corporation 7 * Copyright (C) 2010, NVIDIA Corporation
8 * 8 *
@@ -46,10 +46,6 @@ static u32 tegra_lp0_wake_enb;
46static u32 tegra_lp0_wake_level; 46static u32 tegra_lp0_wake_level;
47static u32 tegra_lp0_wake_level_any; 47static u32 tegra_lp0_wake_level_any;
48 48
49static void (*tegra_gic_mask_irq)(struct irq_data *d);
50static void (*tegra_gic_unmask_irq)(struct irq_data *d);
51static void (*tegra_gic_ack_irq)(struct irq_data *d);
52
53/* ensures that sufficient time is passed for a register write to 49/* ensures that sufficient time is passed for a register write to
54 * serialize into the 32KHz domain */ 50 * serialize into the 32KHz domain */
55static void pmc_32kwritel(u32 val, unsigned long offs) 51static void pmc_32kwritel(u32 val, unsigned long offs)
@@ -103,58 +99,40 @@ void tegra_set_lp0_wake_pads(u32 wake_enb, u32 wake_level, u32 wake_any)
103 99
104static void tegra_mask(struct irq_data *d) 100static void tegra_mask(struct irq_data *d)
105{ 101{
106 tegra_gic_mask_irq(d); 102 if (d->irq >= 32)
107 tegra_legacy_mask_irq(d->irq); 103 tegra_legacy_mask_irq(d->irq);
108} 104}
109 105
110static void tegra_unmask(struct irq_data *d) 106static void tegra_unmask(struct irq_data *d)
111{ 107{
112 tegra_gic_unmask_irq(d); 108 if (d->irq >= 32)
113 tegra_legacy_unmask_irq(d->irq); 109 tegra_legacy_unmask_irq(d->irq);
114} 110}
115 111
116static void tegra_ack(struct irq_data *d) 112static void tegra_ack(struct irq_data *d)
117{ 113{
118 tegra_legacy_force_irq_clr(d->irq); 114 if (d->irq >= 32)
119 tegra_gic_ack_irq(d); 115 tegra_legacy_force_irq_clr(d->irq);
120} 116}
121 117
122static int tegra_retrigger(struct irq_data *d) 118static int tegra_retrigger(struct irq_data *d)
123{ 119{
120 if (d->irq < 32)
121 return 0;
122
124 tegra_legacy_force_irq_set(d->irq); 123 tegra_legacy_force_irq_set(d->irq);
125 return 1; 124 return 1;
126} 125}
127 126
128static struct irq_chip tegra_irq = {
129 .name = "PPI",
130 .irq_ack = tegra_ack,
131 .irq_mask = tegra_mask,
132 .irq_unmask = tegra_unmask,
133 .irq_retrigger = tegra_retrigger,
134};
135
136void __init tegra_init_irq(void) 127void __init tegra_init_irq(void)
137{ 128{
138 struct irq_chip *gic;
139 unsigned int i;
140 int irq;
141
142 tegra_init_legacy_irq(); 129 tegra_init_legacy_irq();
143 130
131 gic_arch_extn.irq_ack = tegra_ack;
132 gic_arch_extn.irq_mask = tegra_mask;
133 gic_arch_extn.irq_unmask = tegra_unmask;
134 gic_arch_extn.irq_retrigger = tegra_retrigger;
135
144 gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE), 136 gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE),
145 IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100)); 137 IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
146
147 gic = irq_get_chip(29);
148 tegra_gic_unmask_irq = gic->irq_unmask;
149 tegra_gic_mask_irq = gic->irq_mask;
150 tegra_gic_ack_irq = gic->irq_ack;
151#ifdef CONFIG_SMP
152 tegra_irq.irq_set_affinity = gic->irq_set_affinity;
153#endif
154
155 for (i = 0; i < INT_MAIN_NR; i++) {
156 irq = INT_PRI_BASE + i;
157 irq_set_chip_and_handler(irq, &tegra_irq, handle_level_irq);
158 set_irq_flags(irq, IRQF_VALID);
159 }
160} 138}