diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-11-21 04:49:47 -0500 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-11-21 04:49:47 -0500 |
commit | 59136ef3c596606d3eef920dc3e0fdfa2ce52c6f (patch) | |
tree | 3f3b8ec46d57bcb61a2d794a1f21bd4df01728c9 /arch/arm/mach-clps711x | |
parent | e879c862fb81b986095ae7a4676b2281c2f97957 (diff) | |
parent | 3f1517a761905c55d1db71cb0afd359d74a76a6c (diff) |
Merge branch 'restart-cleanup' into restart
Diffstat (limited to 'arch/arm/mach-clps711x')
-rw-r--r-- | arch/arm/mach-clps711x/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/common.c (renamed from arch/arm/mach-clps711x/irq.c) | 95 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/mm.c | 48 | ||||
-rw-r--r-- | arch/arm/mach-clps711x/time.c | 84 |
4 files changed, 88 insertions, 141 deletions
diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile index 4a197315f0cf..f2f0256232e3 100644 --- a/arch/arm/mach-clps711x/Makefile +++ b/arch/arm/mach-clps711x/Makefile | |||
@@ -4,7 +4,7 @@ | |||
4 | 4 | ||
5 | # Object file lists. | 5 | # Object file lists. |
6 | 6 | ||
7 | obj-y := irq.o mm.o time.o | 7 | obj-y := common.o |
8 | obj-m := | 8 | obj-m := |
9 | obj-n := | 9 | obj-n := |
10 | obj- := | 10 | obj- := |
diff --git a/arch/arm/mach-clps711x/irq.c b/arch/arm/mach-clps711x/common.c index c2eceee645e3..ced2a4e406f4 100644 --- a/arch/arm/mach-clps711x/irq.c +++ b/arch/arm/mach-clps711x/common.c | |||
@@ -1,7 +1,9 @@ | |||
1 | /* | 1 | /* |
2 | * linux/arch/arm/mach-clps711x/irq.c | 2 | * linux/arch/arm/mach-clps711x/core.c |
3 | * | 3 | * |
4 | * Copyright (C) 2000 Deep Blue Solutions Ltd. | 4 | * Core support for the CLPS711x-based machines. |
5 | * | ||
6 | * Copyright (C) 2001,2011 Deep Blue Solutions Ltd | ||
5 | * | 7 | * |
6 | * This program is free software; you can redistribute it and/or modify | 8 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by | 9 | * it under the terms of the GNU General Public License as published by |
@@ -17,16 +19,42 @@ | |||
17 | * along with this program; if not, write to the Free Software | 19 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ | 21 | */ |
22 | #include <linux/kernel.h> | ||
23 | #include <linux/mm.h> | ||
20 | #include <linux/init.h> | 24 | #include <linux/init.h> |
21 | #include <linux/list.h> | 25 | #include <linux/interrupt.h> |
22 | #include <linux/io.h> | 26 | #include <linux/io.h> |
27 | #include <linux/irq.h> | ||
28 | #include <linux/sched.h> | ||
29 | #include <linux/timex.h> | ||
23 | 30 | ||
24 | #include <asm/mach/irq.h> | 31 | #include <asm/sizes.h> |
25 | #include <mach/hardware.h> | 32 | #include <mach/hardware.h> |
26 | #include <asm/irq.h> | 33 | #include <asm/irq.h> |
27 | 34 | #include <asm/leds.h> | |
35 | #include <asm/pgtable.h> | ||
36 | #include <asm/page.h> | ||
37 | #include <asm/mach/map.h> | ||
38 | #include <asm/mach/time.h> | ||
28 | #include <asm/hardware/clps7111.h> | 39 | #include <asm/hardware/clps7111.h> |
29 | 40 | ||
41 | /* | ||
42 | * This maps the generic CLPS711x registers | ||
43 | */ | ||
44 | static struct map_desc clps711x_io_desc[] __initdata = { | ||
45 | { | ||
46 | .virtual = CLPS7111_VIRT_BASE, | ||
47 | .pfn = __phys_to_pfn(CLPS7111_PHYS_BASE), | ||
48 | .length = SZ_1M, | ||
49 | .type = MT_DEVICE | ||
50 | } | ||
51 | }; | ||
52 | |||
53 | void __init clps711x_map_io(void) | ||
54 | { | ||
55 | iotable_init(clps711x_io_desc, ARRAY_SIZE(clps711x_io_desc)); | ||
56 | } | ||
57 | |||
30 | static void int1_mask(struct irq_data *d) | 58 | static void int1_mask(struct irq_data *d) |
31 | { | 59 | { |
32 | u32 intmr1; | 60 | u32 intmr1; |
@@ -112,15 +140,15 @@ void __init clps711x_init_irq(void) | |||
112 | 140 | ||
113 | for (i = 0; i < NR_IRQS; i++) { | 141 | for (i = 0; i < NR_IRQS; i++) { |
114 | if (INT1_IRQS & (1 << i)) { | 142 | if (INT1_IRQS & (1 << i)) { |
115 | irq_set_chip_and_handler(i, &int1_chip, | 143 | irq_set_chip_and_handler(i, &int1_chip, |
116 | handle_level_irq); | 144 | handle_level_irq); |
117 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); | 145 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); |
118 | } | 146 | } |
119 | if (INT2_IRQS & (1 << i)) { | 147 | if (INT2_IRQS & (1 << i)) { |
120 | irq_set_chip_and_handler(i, &int2_chip, | 148 | irq_set_chip_and_handler(i, &int2_chip, |
121 | handle_level_irq); | 149 | handle_level_irq); |
122 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); | 150 | set_irq_flags(i, IRQF_VALID | IRQF_PROBE); |
123 | } | 151 | } |
124 | } | 152 | } |
125 | 153 | ||
126 | /* | 154 | /* |
@@ -141,3 +169,54 @@ void __init clps711x_init_irq(void) | |||
141 | clps_writel(0, SYNCIO); | 169 | clps_writel(0, SYNCIO); |
142 | clps_writel(0, KBDEOI); | 170 | clps_writel(0, KBDEOI); |
143 | } | 171 | } |
172 | |||
173 | /* | ||
174 | * gettimeoffset() returns time since last timer tick, in usecs. | ||
175 | * | ||
176 | * 'LATCH' is hwclock ticks (see CLOCK_TICK_RATE in timex.h) per jiffy. | ||
177 | * 'tick' is usecs per jiffy. | ||
178 | */ | ||
179 | static unsigned long clps711x_gettimeoffset(void) | ||
180 | { | ||
181 | unsigned long hwticks; | ||
182 | hwticks = LATCH - (clps_readl(TC2D) & 0xffff); /* since last underflow */ | ||
183 | return (hwticks * (tick_nsec / 1000)) / LATCH; | ||
184 | } | ||
185 | |||
186 | /* | ||
187 | * IRQ handler for the timer | ||
188 | */ | ||
189 | static irqreturn_t p720t_timer_interrupt(int irq, void *dev_id) | ||
190 | { | ||
191 | timer_tick(); | ||
192 | return IRQ_HANDLED; | ||
193 | } | ||
194 | |||
195 | static struct irqaction clps711x_timer_irq = { | ||
196 | .name = "CLPS711x Timer Tick", | ||
197 | .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, | ||
198 | .handler = p720t_timer_interrupt, | ||
199 | }; | ||
200 | |||
201 | static void __init clps711x_timer_init(void) | ||
202 | { | ||
203 | struct timespec tv; | ||
204 | unsigned int syscon; | ||
205 | |||
206 | syscon = clps_readl(SYSCON1); | ||
207 | syscon |= SYSCON1_TC2S | SYSCON1_TC2M; | ||
208 | clps_writel(syscon, SYSCON1); | ||
209 | |||
210 | clps_writel(LATCH-1, TC2D); /* 512kHz / 100Hz - 1 */ | ||
211 | |||
212 | setup_irq(IRQ_TC2OI, &clps711x_timer_irq); | ||
213 | |||
214 | tv.tv_nsec = 0; | ||
215 | tv.tv_sec = clps_readl(RTCDR); | ||
216 | do_settimeofday(&tv); | ||
217 | } | ||
218 | |||
219 | struct sys_timer clps711x_timer = { | ||
220 | .init = clps711x_timer_init, | ||
221 | .offset = clps711x_gettimeoffset, | ||
222 | }; | ||
diff --git a/arch/arm/mach-clps711x/mm.c b/arch/arm/mach-clps711x/mm.c deleted file mode 100644 index 986592176767..000000000000 --- a/arch/arm/mach-clps711x/mm.c +++ /dev/null | |||
@@ -1,48 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-clps711x/mm.c | ||
3 | * | ||
4 | * Generic MM setup for the CLPS711x-based machines. | ||
5 | * | ||
6 | * Copyright (C) 2001 Deep Blue Solutions Ltd | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
12 | * | ||
13 | * This program is distributed in the hope that it will be useful, | ||
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
16 | * GNU General Public License for more details. | ||
17 | * | ||
18 | * You should have received a copy of the GNU General Public License | ||
19 | * along with this program; if not, write to the Free Software | ||
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
21 | */ | ||
22 | #include <linux/kernel.h> | ||
23 | #include <linux/mm.h> | ||
24 | #include <linux/init.h> | ||
25 | |||
26 | #include <asm/sizes.h> | ||
27 | #include <mach/hardware.h> | ||
28 | #include <asm/pgtable.h> | ||
29 | #include <asm/page.h> | ||
30 | #include <asm/mach/map.h> | ||
31 | #include <asm/hardware/clps7111.h> | ||
32 | |||
33 | /* | ||
34 | * This maps the generic CLPS711x registers | ||
35 | */ | ||
36 | static struct map_desc clps711x_io_desc[] __initdata = { | ||
37 | { | ||
38 | .virtual = CLPS7111_VIRT_BASE, | ||
39 | .pfn = __phys_to_pfn(CLPS7111_PHYS_BASE), | ||
40 | .length = SZ_1M, | ||
41 | .type = MT_DEVICE | ||
42 | } | ||
43 | }; | ||
44 | |||
45 | void __init clps711x_map_io(void) | ||
46 | { | ||
47 | iotable_init(clps711x_io_desc, ARRAY_SIZE(clps711x_io_desc)); | ||
48 | } | ||
diff --git a/arch/arm/mach-clps711x/time.c b/arch/arm/mach-clps711x/time.c deleted file mode 100644 index d581ef0bcd24..000000000000 --- a/arch/arm/mach-clps711x/time.c +++ /dev/null | |||
@@ -1,84 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-clps711x/time.c | ||
3 | * | ||
4 | * Copyright (C) 2001 Deep Blue Solutions Ltd. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope that it will be useful, | ||
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | * GNU General Public License for more details. | ||
14 | * | ||
15 | * You should have received a copy of the GNU General Public License | ||
16 | * along with this program; if not, write to the Free Software | ||
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
18 | */ | ||
19 | #include <linux/timex.h> | ||
20 | #include <linux/init.h> | ||
21 | #include <linux/interrupt.h> | ||
22 | #include <linux/irq.h> | ||
23 | #include <linux/sched.h> | ||
24 | #include <linux/io.h> | ||
25 | |||
26 | #include <mach/hardware.h> | ||
27 | #include <asm/irq.h> | ||
28 | #include <asm/leds.h> | ||
29 | #include <asm/hardware/clps7111.h> | ||
30 | |||
31 | #include <asm/mach/time.h> | ||
32 | |||
33 | |||
34 | /* | ||
35 | * gettimeoffset() returns time since last timer tick, in usecs. | ||
36 | * | ||
37 | * 'LATCH' is hwclock ticks (see CLOCK_TICK_RATE in timex.h) per jiffy. | ||
38 | * 'tick' is usecs per jiffy. | ||
39 | */ | ||
40 | static unsigned long clps711x_gettimeoffset(void) | ||
41 | { | ||
42 | unsigned long hwticks; | ||
43 | hwticks = LATCH - (clps_readl(TC2D) & 0xffff); /* since last underflow */ | ||
44 | return (hwticks * (tick_nsec / 1000)) / LATCH; | ||
45 | } | ||
46 | |||
47 | /* | ||
48 | * IRQ handler for the timer | ||
49 | */ | ||
50 | static irqreturn_t | ||
51 | p720t_timer_interrupt(int irq, void *dev_id) | ||
52 | { | ||
53 | timer_tick(); | ||
54 | return IRQ_HANDLED; | ||
55 | } | ||
56 | |||
57 | static struct irqaction clps711x_timer_irq = { | ||
58 | .name = "CLPS711x Timer Tick", | ||
59 | .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, | ||
60 | .handler = p720t_timer_interrupt, | ||
61 | }; | ||
62 | |||
63 | static void __init clps711x_timer_init(void) | ||
64 | { | ||
65 | struct timespec tv; | ||
66 | unsigned int syscon; | ||
67 | |||
68 | syscon = clps_readl(SYSCON1); | ||
69 | syscon |= SYSCON1_TC2S | SYSCON1_TC2M; | ||
70 | clps_writel(syscon, SYSCON1); | ||
71 | |||
72 | clps_writel(LATCH-1, TC2D); /* 512kHz / 100Hz - 1 */ | ||
73 | |||
74 | setup_irq(IRQ_TC2OI, &clps711x_timer_irq); | ||
75 | |||
76 | tv.tv_nsec = 0; | ||
77 | tv.tv_sec = clps_readl(RTCDR); | ||
78 | do_settimeofday(&tv); | ||
79 | } | ||
80 | |||
81 | struct sys_timer clps711x_timer = { | ||
82 | .init = clps711x_timer_init, | ||
83 | .offset = clps711x_gettimeoffset, | ||
84 | }; | ||