aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-tegra
diff options
context:
space:
mode:
authorColin Cross <ccross@android.com>2011-05-01 17:10:11 -0400
committerWill Deacon <will.deacon@arm.com>2011-05-11 11:04:16 -0400
commit4dda2d384bc69de260647c3b419967734a4de496 (patch)
tree856f1f8e1a8593691a1bf4bee1dee760519de04d /arch/arm/mach-tegra
parent938fa349fbc16880feae4b65e56691ca12ede9ab (diff)
ARM: tegra: irq: Remove PM support
Tegra PM irq support is being improved, remove it for now until the rest of the platform gets PM support. Signed-off-by: Colin Cross <ccross@android.com>
Diffstat (limited to 'arch/arm/mach-tegra')
-rw-r--r--arch/arm/mach-tegra/include/mach/legacy_irq.h3
-rw-r--r--arch/arm/mach-tegra/irq.c66
-rw-r--r--arch/arm/mach-tegra/legacy_irq.c77
3 files changed, 0 insertions, 146 deletions
diff --git a/arch/arm/mach-tegra/include/mach/legacy_irq.h b/arch/arm/mach-tegra/include/mach/legacy_irq.h
index d898c0e3d905..4c1f53543744 100644
--- a/arch/arm/mach-tegra/include/mach/legacy_irq.h
+++ b/arch/arm/mach-tegra/include/mach/legacy_irq.h
@@ -27,9 +27,6 @@ int tegra_legacy_force_irq_status(unsigned int irq);
27void tegra_legacy_select_fiq(unsigned int irq, bool fiq); 27void tegra_legacy_select_fiq(unsigned int irq, bool fiq);
28unsigned long tegra_legacy_vfiq(int nr); 28unsigned long tegra_legacy_vfiq(int nr);
29unsigned long tegra_legacy_class(int nr); 29unsigned long tegra_legacy_class(int nr);
30int tegra_legacy_irq_set_wake(int irq, int enable);
31void tegra_legacy_irq_set_lp1_wake_mask(void);
32void tegra_legacy_irq_restore_mask(void);
33void tegra_init_legacy_irq(void); 30void tegra_init_legacy_irq(void);
34 31
35#endif 32#endif
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 567b75c4c67b..4fa7a37ea5e4 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -28,75 +28,9 @@
28 28
29#include <mach/iomap.h> 29#include <mach/iomap.h>
30#include <mach/legacy_irq.h> 30#include <mach/legacy_irq.h>
31#include <mach/suspend.h>
32 31
33#include "board.h" 32#include "board.h"
34 33
35#define PMC_CTRL 0x0
36#define PMC_CTRL_LATCH_WAKEUPS (1 << 5)
37#define PMC_WAKE_MASK 0xc
38#define PMC_WAKE_LEVEL 0x10
39#define PMC_WAKE_STATUS 0x14
40#define PMC_SW_WAKE_STATUS 0x18
41#define PMC_DPD_SAMPLE 0x20
42
43static void __iomem *pmc = IO_ADDRESS(TEGRA_PMC_BASE);
44
45static u32 tegra_lp0_wake_enb;
46static u32 tegra_lp0_wake_level;
47static u32 tegra_lp0_wake_level_any;
48
49/* ensures that sufficient time is passed for a register write to
50 * serialize into the 32KHz domain */
51static void pmc_32kwritel(u32 val, unsigned long offs)
52{
53 writel(val, pmc + offs);
54 udelay(130);
55}
56
57int tegra_set_lp1_wake(int irq, int enable)
58{
59 return tegra_legacy_irq_set_wake(irq, enable);
60}
61
62void tegra_set_lp0_wake_pads(u32 wake_enb, u32 wake_level, u32 wake_any)
63{
64 u32 temp;
65 u32 status;
66 u32 lvl;
67
68 wake_level &= wake_enb;
69 wake_any &= wake_enb;
70
71 wake_level |= (tegra_lp0_wake_level & tegra_lp0_wake_enb);
72 wake_any |= (tegra_lp0_wake_level_any & tegra_lp0_wake_enb);
73
74 wake_enb |= tegra_lp0_wake_enb;
75
76 pmc_32kwritel(0, PMC_SW_WAKE_STATUS);
77 temp = readl(pmc + PMC_CTRL);
78 temp |= PMC_CTRL_LATCH_WAKEUPS;
79 pmc_32kwritel(temp, PMC_CTRL);
80 temp &= ~PMC_CTRL_LATCH_WAKEUPS;
81 pmc_32kwritel(temp, PMC_CTRL);
82 status = readl(pmc + PMC_SW_WAKE_STATUS);
83 lvl = readl(pmc + PMC_WAKE_LEVEL);
84
85 /* flip the wakeup trigger for any-edge triggered pads
86 * which are currently asserting as wakeups */
87 lvl ^= status;
88 lvl &= wake_any;
89
90 wake_level |= lvl;
91
92 writel(wake_level, pmc + PMC_WAKE_LEVEL);
93 /* Enable DPD sample to trigger sampling pads data and direction
94 * in which pad will be driven during lp0 mode*/
95 writel(0x1, pmc + PMC_DPD_SAMPLE);
96
97 writel(wake_enb, pmc + PMC_WAKE_MASK);
98}
99
100static void tegra_mask(struct irq_data *d) 34static void tegra_mask(struct irq_data *d)
101{ 35{
102 if (d->irq >= 32) 36 if (d->irq >= 32)
diff --git a/arch/arm/mach-tegra/legacy_irq.c b/arch/arm/mach-tegra/legacy_irq.c
index 38eb719a4f53..cb316699ffad 100644
--- a/arch/arm/mach-tegra/legacy_irq.c
+++ b/arch/arm/mach-tegra/legacy_irq.c
@@ -49,9 +49,6 @@ static void __iomem *ictlr_reg_base[] = {
49 IO_ADDRESS(TEGRA_QUATERNARY_ICTLR_BASE), 49 IO_ADDRESS(TEGRA_QUATERNARY_ICTLR_BASE),
50}; 50};
51 51
52static u32 tegra_legacy_wake_mask[4];
53static u32 tegra_legacy_saved_mask[4];
54
55/* When going into deep sleep, the CPU is powered down, taking the GIC with it 52/* When going into deep sleep, the CPU is powered down, taking the GIC with it
56 In order to wake, the wake interrupts need to be enabled in the legacy 53 In order to wake, the wake interrupts need to be enabled in the legacy
57 interrupt controller. */ 54 interrupt controller. */
@@ -129,40 +126,6 @@ unsigned long tegra_legacy_class(int nr)
129 return readl(base + ICTLR_CPU_IEP_CLASS); 126 return readl(base + ICTLR_CPU_IEP_CLASS);
130} 127}
131 128
132int tegra_legacy_irq_set_wake(int irq, int enable)
133{
134 irq -= 32;
135 if (enable)
136 tegra_legacy_wake_mask[irq >> 5] |= 1 << (irq & 31);
137 else
138 tegra_legacy_wake_mask[irq >> 5] &= ~(1 << (irq & 31));
139
140 return 0;
141}
142
143void tegra_legacy_irq_set_lp1_wake_mask(void)
144{
145 void __iomem *base;
146 int i;
147
148 for (i = 0; i < NUM_ICTLRS; i++) {
149 base = ictlr_reg_base[i];
150 tegra_legacy_saved_mask[i] = readl(base + ICTLR_CPU_IER);
151 writel(tegra_legacy_wake_mask[i], base + ICTLR_CPU_IER);
152 }
153}
154
155void tegra_legacy_irq_restore_mask(void)
156{
157 void __iomem *base;
158 int i;
159
160 for (i = 0; i < NUM_ICTLRS; i++) {
161 base = ictlr_reg_base[i];
162 writel(tegra_legacy_saved_mask[i], base + ICTLR_CPU_IER);
163 }
164}
165
166void tegra_init_legacy_irq(void) 129void tegra_init_legacy_irq(void)
167{ 130{
168 int i; 131 int i;
@@ -173,43 +136,3 @@ void tegra_init_legacy_irq(void)
173 writel(0, ictlr + ICTLR_CPU_IEP_CLASS); 136 writel(0, ictlr + ICTLR_CPU_IEP_CLASS);
174 } 137 }
175} 138}
176
177#ifdef CONFIG_PM
178static u32 cop_ier[NUM_ICTLRS];
179static u32 cpu_ier[NUM_ICTLRS];
180static u32 cpu_iep[NUM_ICTLRS];
181
182void tegra_irq_suspend(void)
183{
184 unsigned long flags;
185 int i;
186
187 local_irq_save(flags);
188 for (i = 0; i < NUM_ICTLRS; i++) {
189 void __iomem *ictlr = ictlr_reg_base[i];
190 cpu_ier[i] = readl(ictlr + ICTLR_CPU_IER);
191 cpu_iep[i] = readl(ictlr + ICTLR_CPU_IEP_CLASS);
192 cop_ier[i] = readl(ictlr + ICTLR_COP_IER);
193 writel(~0, ictlr + ICTLR_COP_IER_CLR);
194 }
195 local_irq_restore(flags);
196}
197
198void tegra_irq_resume(void)
199{
200 unsigned long flags;
201 int i;
202
203 local_irq_save(flags);
204 for (i = 0; i < NUM_ICTLRS; i++) {
205 void __iomem *ictlr = ictlr_reg_base[i];
206 writel(cpu_iep[i], ictlr + ICTLR_CPU_IEP_CLASS);
207 writel(~0ul, ictlr + ICTLR_CPU_IER_CLR);
208 writel(cpu_ier[i], ictlr + ICTLR_CPU_IER_SET);
209 writel(0, ictlr + ICTLR_COP_IEP_CLASS);
210 writel(~0ul, ictlr + ICTLR_COP_IER_CLR);
211 writel(cop_ier[i], ictlr + ICTLR_COP_IER_SET);
212 }
213 local_irq_restore(flags);
214}
215#endif