diff options
Diffstat (limited to 'arch/arm/mach-iop13xx')
-rw-r--r-- | arch/arm/mach-iop13xx/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-iop13xx/iq81340mc.c | 5 | ||||
-rw-r--r-- | arch/arm/mach-iop13xx/iq81340sc.c | 5 | ||||
-rw-r--r-- | arch/arm/mach-iop13xx/irq.c | 19 | ||||
-rw-r--r-- | arch/arm/mach-iop13xx/time.c | 102 |
5 files changed, 6 insertions, 126 deletions
diff --git a/arch/arm/mach-iop13xx/Makefile b/arch/arm/mach-iop13xx/Makefile index c3d6c08f2d4c..4185e0586c33 100644 --- a/arch/arm/mach-iop13xx/Makefile +++ b/arch/arm/mach-iop13xx/Makefile | |||
@@ -5,7 +5,6 @@ obj- := | |||
5 | 5 | ||
6 | obj-$(CONFIG_ARCH_IOP13XX) += setup.o | 6 | obj-$(CONFIG_ARCH_IOP13XX) += setup.o |
7 | obj-$(CONFIG_ARCH_IOP13XX) += irq.o | 7 | obj-$(CONFIG_ARCH_IOP13XX) += irq.o |
8 | obj-$(CONFIG_ARCH_IOP13XX) += time.o | ||
9 | obj-$(CONFIG_ARCH_IOP13XX) += pci.o | 8 | obj-$(CONFIG_ARCH_IOP13XX) += pci.o |
10 | obj-$(CONFIG_ARCH_IOP13XX) += io.o | 9 | obj-$(CONFIG_ARCH_IOP13XX) += io.o |
11 | obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o | 10 | obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o |
diff --git a/arch/arm/mach-iop13xx/iq81340mc.c b/arch/arm/mach-iop13xx/iq81340mc.c index 2a1bbfe9896f..a519d707571c 100644 --- a/arch/arm/mach-iop13xx/iq81340mc.c +++ b/arch/arm/mach-iop13xx/iq81340mc.c | |||
@@ -25,6 +25,7 @@ | |||
25 | #include <asm/mach/arch.h> | 25 | #include <asm/mach/arch.h> |
26 | #include <asm/arch/pci.h> | 26 | #include <asm/arch/pci.h> |
27 | #include <asm/mach/time.h> | 27 | #include <asm/mach/time.h> |
28 | #include <asm/arch/time.h> | ||
28 | 29 | ||
29 | extern int init_atu; /* Flag to select which ATU(s) to initialize / disable */ | 30 | extern int init_atu; /* Flag to select which ATU(s) to initialize / disable */ |
30 | 31 | ||
@@ -78,12 +79,12 @@ static void __init iq81340mc_init(void) | |||
78 | 79 | ||
79 | static void __init iq81340mc_timer_init(void) | 80 | static void __init iq81340mc_timer_init(void) |
80 | { | 81 | { |
81 | iop13xx_init_time(400000000); | 82 | iop_init_time(400000000); |
82 | } | 83 | } |
83 | 84 | ||
84 | static struct sys_timer iq81340mc_timer = { | 85 | static struct sys_timer iq81340mc_timer = { |
85 | .init = iq81340mc_timer_init, | 86 | .init = iq81340mc_timer_init, |
86 | .offset = iop13xx_gettimeoffset, | 87 | .offset = iop_gettimeoffset, |
87 | }; | 88 | }; |
88 | 89 | ||
89 | MACHINE_START(IQ81340MC, "Intel IQ81340MC") | 90 | MACHINE_START(IQ81340MC, "Intel IQ81340MC") |
diff --git a/arch/arm/mach-iop13xx/iq81340sc.c b/arch/arm/mach-iop13xx/iq81340sc.c index 5ad2b62c9bfd..0e71fbcabe00 100644 --- a/arch/arm/mach-iop13xx/iq81340sc.c +++ b/arch/arm/mach-iop13xx/iq81340sc.c | |||
@@ -25,6 +25,7 @@ | |||
25 | #include <asm/mach/arch.h> | 25 | #include <asm/mach/arch.h> |
26 | #include <asm/arch/pci.h> | 26 | #include <asm/arch/pci.h> |
27 | #include <asm/mach/time.h> | 27 | #include <asm/mach/time.h> |
28 | #include <asm/arch/time.h> | ||
28 | 29 | ||
29 | extern int init_atu; | 30 | extern int init_atu; |
30 | 31 | ||
@@ -80,12 +81,12 @@ static void __init iq81340sc_init(void) | |||
80 | 81 | ||
81 | static void __init iq81340sc_timer_init(void) | 82 | static void __init iq81340sc_timer_init(void) |
82 | { | 83 | { |
83 | iop13xx_init_time(400000000); | 84 | iop_init_time(400000000); |
84 | } | 85 | } |
85 | 86 | ||
86 | static struct sys_timer iq81340sc_timer = { | 87 | static struct sys_timer iq81340sc_timer = { |
87 | .init = iq81340sc_timer_init, | 88 | .init = iq81340sc_timer_init, |
88 | .offset = iop13xx_gettimeoffset, | 89 | .offset = iop_gettimeoffset, |
89 | }; | 90 | }; |
90 | 91 | ||
91 | MACHINE_START(IQ81340SC, "Intel IQ81340SC") | 92 | MACHINE_START(IQ81340SC, "Intel IQ81340SC") |
diff --git a/arch/arm/mach-iop13xx/irq.c b/arch/arm/mach-iop13xx/irq.c index 162b93214965..b2eb0b961031 100644 --- a/arch/arm/mach-iop13xx/irq.c +++ b/arch/arm/mach-iop13xx/irq.c | |||
@@ -161,65 +161,49 @@ static void write_intsize(u32 val) | |||
161 | static void | 161 | static void |
162 | iop13xx_irq_mask0 (unsigned int irq) | 162 | iop13xx_irq_mask0 (unsigned int irq) |
163 | { | 163 | { |
164 | u32 cp_flags = iop13xx_cp6_save(); | ||
165 | write_intctl_0(read_intctl_0() & ~(1 << (irq - 0))); | 164 | write_intctl_0(read_intctl_0() & ~(1 << (irq - 0))); |
166 | iop13xx_cp6_restore(cp_flags); | ||
167 | } | 165 | } |
168 | 166 | ||
169 | static void | 167 | static void |
170 | iop13xx_irq_mask1 (unsigned int irq) | 168 | iop13xx_irq_mask1 (unsigned int irq) |
171 | { | 169 | { |
172 | u32 cp_flags = iop13xx_cp6_save(); | ||
173 | write_intctl_1(read_intctl_1() & ~(1 << (irq - 32))); | 170 | write_intctl_1(read_intctl_1() & ~(1 << (irq - 32))); |
174 | iop13xx_cp6_restore(cp_flags); | ||
175 | } | 171 | } |
176 | 172 | ||
177 | static void | 173 | static void |
178 | iop13xx_irq_mask2 (unsigned int irq) | 174 | iop13xx_irq_mask2 (unsigned int irq) |
179 | { | 175 | { |
180 | u32 cp_flags = iop13xx_cp6_save(); | ||
181 | write_intctl_2(read_intctl_2() & ~(1 << (irq - 64))); | 176 | write_intctl_2(read_intctl_2() & ~(1 << (irq - 64))); |
182 | iop13xx_cp6_restore(cp_flags); | ||
183 | } | 177 | } |
184 | 178 | ||
185 | static void | 179 | static void |
186 | iop13xx_irq_mask3 (unsigned int irq) | 180 | iop13xx_irq_mask3 (unsigned int irq) |
187 | { | 181 | { |
188 | u32 cp_flags = iop13xx_cp6_save(); | ||
189 | write_intctl_3(read_intctl_3() & ~(1 << (irq - 96))); | 182 | write_intctl_3(read_intctl_3() & ~(1 << (irq - 96))); |
190 | iop13xx_cp6_restore(cp_flags); | ||
191 | } | 183 | } |
192 | 184 | ||
193 | static void | 185 | static void |
194 | iop13xx_irq_unmask0(unsigned int irq) | 186 | iop13xx_irq_unmask0(unsigned int irq) |
195 | { | 187 | { |
196 | u32 cp_flags = iop13xx_cp6_save(); | ||
197 | write_intctl_0(read_intctl_0() | (1 << (irq - 0))); | 188 | write_intctl_0(read_intctl_0() | (1 << (irq - 0))); |
198 | iop13xx_cp6_restore(cp_flags); | ||
199 | } | 189 | } |
200 | 190 | ||
201 | static void | 191 | static void |
202 | iop13xx_irq_unmask1(unsigned int irq) | 192 | iop13xx_irq_unmask1(unsigned int irq) |
203 | { | 193 | { |
204 | u32 cp_flags = iop13xx_cp6_save(); | ||
205 | write_intctl_1(read_intctl_1() | (1 << (irq - 32))); | 194 | write_intctl_1(read_intctl_1() | (1 << (irq - 32))); |
206 | iop13xx_cp6_restore(cp_flags); | ||
207 | } | 195 | } |
208 | 196 | ||
209 | static void | 197 | static void |
210 | iop13xx_irq_unmask2(unsigned int irq) | 198 | iop13xx_irq_unmask2(unsigned int irq) |
211 | { | 199 | { |
212 | u32 cp_flags = iop13xx_cp6_save(); | ||
213 | write_intctl_2(read_intctl_2() | (1 << (irq - 64))); | 200 | write_intctl_2(read_intctl_2() | (1 << (irq - 64))); |
214 | iop13xx_cp6_restore(cp_flags); | ||
215 | } | 201 | } |
216 | 202 | ||
217 | static void | 203 | static void |
218 | iop13xx_irq_unmask3(unsigned int irq) | 204 | iop13xx_irq_unmask3(unsigned int irq) |
219 | { | 205 | { |
220 | u32 cp_flags = iop13xx_cp6_save(); | ||
221 | write_intctl_3(read_intctl_3() | (1 << (irq - 96))); | 206 | write_intctl_3(read_intctl_3() | (1 << (irq - 96))); |
222 | iop13xx_cp6_restore(cp_flags); | ||
223 | } | 207 | } |
224 | 208 | ||
225 | static struct irq_chip iop13xx_irqchip1 = { | 209 | static struct irq_chip iop13xx_irqchip1 = { |
@@ -256,7 +240,6 @@ void __init iop13xx_init_irq(void) | |||
256 | { | 240 | { |
257 | unsigned int i; | 241 | unsigned int i; |
258 | 242 | ||
259 | u32 cp_flags = iop13xx_cp6_save(); | ||
260 | iop_init_cp6_handler(); | 243 | iop_init_cp6_handler(); |
261 | 244 | ||
262 | /* disable all interrupts */ | 245 | /* disable all interrupts */ |
@@ -288,6 +271,4 @@ void __init iop13xx_init_irq(void) | |||
288 | set_irq_handler(i, handle_level_irq); | 271 | set_irq_handler(i, handle_level_irq); |
289 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); | 272 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); |
290 | } | 273 | } |
291 | |||
292 | iop13xx_cp6_restore(cp_flags); | ||
293 | } | 274 | } |
diff --git a/arch/arm/mach-iop13xx/time.c b/arch/arm/mach-iop13xx/time.c deleted file mode 100644 index 8b21365f653f..000000000000 --- a/arch/arm/mach-iop13xx/time.c +++ /dev/null | |||
@@ -1,102 +0,0 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-iop13xx/time.c | ||
3 | * | ||
4 | * Timer code for IOP13xx (copied from IOP32x/IOP33x implementation) | ||
5 | * | ||
6 | * Author: Deepak Saxena <dsaxena@mvista.com> | ||
7 | * | ||
8 | * Copyright 2002-2003 MontaVista Software Inc. | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify it | ||
11 | * under the terms of the GNU General Public License as published by the | ||
12 | * Free Software Foundation; either version 2 of the License, or (at your | ||
13 | * option) any later version. | ||
14 | */ | ||
15 | |||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/interrupt.h> | ||
18 | #include <linux/time.h> | ||
19 | #include <linux/init.h> | ||
20 | #include <linux/timex.h> | ||
21 | #include <asm/io.h> | ||
22 | #include <asm/irq.h> | ||
23 | #include <asm/uaccess.h> | ||
24 | #include <asm/mach/irq.h> | ||
25 | #include <asm/mach/time.h> | ||
26 | |||
27 | static unsigned long ticks_per_jiffy; | ||
28 | static unsigned long ticks_per_usec; | ||
29 | static unsigned long next_jiffy_time; | ||
30 | |||
31 | static inline u32 read_tcr1(void) | ||
32 | { | ||
33 | u32 val; | ||
34 | asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val)); | ||
35 | return val; | ||
36 | } | ||
37 | |||
38 | unsigned long iop13xx_gettimeoffset(void) | ||
39 | { | ||
40 | unsigned long offset; | ||
41 | u32 cp_flags; | ||
42 | |||
43 | cp_flags = iop13xx_cp6_save(); | ||
44 | offset = next_jiffy_time - read_tcr1(); | ||
45 | iop13xx_cp6_restore(cp_flags); | ||
46 | |||
47 | return offset / ticks_per_usec; | ||
48 | } | ||
49 | |||
50 | static irqreturn_t | ||
51 | iop13xx_timer_interrupt(int irq, void *dev_id) | ||
52 | { | ||
53 | u32 cp_flags = iop13xx_cp6_save(); | ||
54 | |||
55 | write_seqlock(&xtime_lock); | ||
56 | |||
57 | asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (1)); | ||
58 | |||
59 | while ((signed long)(next_jiffy_time - read_tcr1()) | ||
60 | >= ticks_per_jiffy) { | ||
61 | timer_tick(); | ||
62 | next_jiffy_time -= ticks_per_jiffy; | ||
63 | } | ||
64 | |||
65 | write_sequnlock(&xtime_lock); | ||
66 | |||
67 | iop13xx_cp6_restore(cp_flags); | ||
68 | |||
69 | return IRQ_HANDLED; | ||
70 | } | ||
71 | |||
72 | static struct irqaction iop13xx_timer_irq = { | ||
73 | .name = "IOP13XX Timer Tick", | ||
74 | .handler = iop13xx_timer_interrupt, | ||
75 | .flags = IRQF_DISABLED | IRQF_TIMER, | ||
76 | }; | ||
77 | |||
78 | void __init iop13xx_init_time(unsigned long tick_rate) | ||
79 | { | ||
80 | u32 timer_ctl; | ||
81 | u32 cp_flags; | ||
82 | |||
83 | ticks_per_jiffy = (tick_rate + HZ/2) / HZ; | ||
84 | ticks_per_usec = tick_rate / 1000000; | ||
85 | next_jiffy_time = 0xffffffff; | ||
86 | |||
87 | timer_ctl = IOP13XX_TMR_EN | IOP13XX_TMR_PRIVILEGED | | ||
88 | IOP13XX_TMR_RELOAD | IOP13XX_TMR_RATIO_1_1; | ||
89 | |||
90 | /* | ||
91 | * We use timer 0 for our timer interrupt, and timer 1 as | ||
92 | * monotonic counter for tracking missed jiffies. | ||
93 | */ | ||
94 | cp_flags = iop13xx_cp6_save(); | ||
95 | asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (ticks_per_jiffy - 1)); | ||
96 | asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (timer_ctl)); | ||
97 | asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (0xffffffff)); | ||
98 | asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (timer_ctl)); | ||
99 | iop13xx_cp6_restore(cp_flags); | ||
100 | |||
101 | setup_irq(IRQ_IOP13XX_TIMER0, &iop13xx_timer_irq); | ||
102 | } | ||