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-rw-r--r--arch/arm/mach-iop13xx/Makefile1
-rw-r--r--arch/arm/mach-iop13xx/iq81340mc.c5
-rw-r--r--arch/arm/mach-iop13xx/iq81340sc.c5
-rw-r--r--arch/arm/mach-iop13xx/irq.c19
-rw-r--r--arch/arm/mach-iop13xx/time.c102
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
6obj-$(CONFIG_ARCH_IOP13XX) += setup.o 6obj-$(CONFIG_ARCH_IOP13XX) += setup.o
7obj-$(CONFIG_ARCH_IOP13XX) += irq.o 7obj-$(CONFIG_ARCH_IOP13XX) += irq.o
8obj-$(CONFIG_ARCH_IOP13XX) += time.o
9obj-$(CONFIG_ARCH_IOP13XX) += pci.o 8obj-$(CONFIG_ARCH_IOP13XX) += pci.o
10obj-$(CONFIG_ARCH_IOP13XX) += io.o 9obj-$(CONFIG_ARCH_IOP13XX) += io.o
11obj-$(CONFIG_MACH_IQ81340SC) += iq81340sc.o 10obj-$(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
29extern int init_atu; /* Flag to select which ATU(s) to initialize / disable */ 30extern 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
79static void __init iq81340mc_timer_init(void) 80static void __init iq81340mc_timer_init(void)
80{ 81{
81 iop13xx_init_time(400000000); 82 iop_init_time(400000000);
82} 83}
83 84
84static struct sys_timer iq81340mc_timer = { 85static 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
89MACHINE_START(IQ81340MC, "Intel IQ81340MC") 90MACHINE_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
29extern int init_atu; 30extern int init_atu;
30 31
@@ -80,12 +81,12 @@ static void __init iq81340sc_init(void)
80 81
81static void __init iq81340sc_timer_init(void) 82static void __init iq81340sc_timer_init(void)
82{ 83{
83 iop13xx_init_time(400000000); 84 iop_init_time(400000000);
84} 85}
85 86
86static struct sys_timer iq81340sc_timer = { 87static 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
91MACHINE_START(IQ81340SC, "Intel IQ81340SC") 92MACHINE_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)
161static void 161static void
162iop13xx_irq_mask0 (unsigned int irq) 162iop13xx_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
169static void 167static void
170iop13xx_irq_mask1 (unsigned int irq) 168iop13xx_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
177static void 173static void
178iop13xx_irq_mask2 (unsigned int irq) 174iop13xx_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
185static void 179static void
186iop13xx_irq_mask3 (unsigned int irq) 180iop13xx_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
193static void 185static void
194iop13xx_irq_unmask0(unsigned int irq) 186iop13xx_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
201static void 191static void
202iop13xx_irq_unmask1(unsigned int irq) 192iop13xx_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
209static void 197static void
210iop13xx_irq_unmask2(unsigned int irq) 198iop13xx_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
217static void 203static void
218iop13xx_irq_unmask3(unsigned int irq) 204iop13xx_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
225static struct irq_chip iop13xx_irqchip1 = { 209static 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
27static unsigned long ticks_per_jiffy;
28static unsigned long ticks_per_usec;
29static unsigned long next_jiffy_time;
30
31static 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
38unsigned 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
50static irqreturn_t
51iop13xx_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
72static struct irqaction iop13xx_timer_irq = {
73 .name = "IOP13XX Timer Tick",
74 .handler = iop13xx_timer_interrupt,
75 .flags = IRQF_DISABLED | IRQF_TIMER,
76};
77
78void __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}