diff options
Diffstat (limited to 'arch/arm/mach-clps711x/time.c')
-rw-r--r-- | arch/arm/mach-clps711x/time.c | 84 |
1 files changed, 0 insertions, 84 deletions
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 | }; | ||