Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/plat-mxc/time.c |
| 3 | * |
| 4 | * Copyright (C) 2000-2001 Deep Blue Solutions |
| 5 | * Copyright (C) 2002 Shane Nay (shane@minirl.com) |
| 6 | * Copyright (C) 2006-2007 Pavel Pisa (ppisa@pikron.com) |
| 7 | * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU General Public License |
| 11 | * as published by the Free Software Foundation; either version 2 |
| 12 | * of the License, or (at your option) any later version. |
| 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., 51 Franklin Street, Fifth Floor, Boston, |
| 21 | * MA 02110-1301, USA. |
| 22 | */ |
| 23 | |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/irq.h> |
| 26 | #include <linux/clockchips.h> |
| 27 | #include <linux/clk.h> |
| 28 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 29 | #include <mach/hardware.h> |
Jan Weitzel | c124bef | 2011-03-17 13:44:30 +0100 | [diff] [blame] | 30 | #include <asm/sched_clock.h> |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 31 | #include <asm/mach/time.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 32 | #include <mach/common.h> |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 33 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 34 | /* |
| 35 | * There are 2 versions of the timer hardware on Freescale MXC hardware. |
| 36 | * Version 1: MX1/MXL, MX21, MX27. |
| 37 | * Version 2: MX25, MX31, MX35, MX37, MX51 |
| 38 | */ |
| 39 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 40 | /* defines common for all i.MX */ |
| 41 | #define MXC_TCTL 0x00 |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 42 | #define MXC_TCTL_TEN (1 << 0) /* Enable module */ |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 43 | #define MXC_TPRER 0x04 |
| 44 | |
| 45 | /* MX1, MX21, MX27 */ |
| 46 | #define MX1_2_TCTL_CLK_PCLK1 (1 << 1) |
| 47 | #define MX1_2_TCTL_IRQEN (1 << 4) |
| 48 | #define MX1_2_TCTL_FRR (1 << 8) |
| 49 | #define MX1_2_TCMP 0x08 |
| 50 | #define MX1_2_TCN 0x10 |
| 51 | #define MX1_2_TSTAT 0x14 |
| 52 | |
| 53 | /* MX21, MX27 */ |
| 54 | #define MX2_TSTAT_CAPT (1 << 1) |
| 55 | #define MX2_TSTAT_COMP (1 << 0) |
| 56 | |
Uwe Kleine-König | 13cf8df | 2011-04-07 11:13:25 +0200 | [diff] [blame] | 57 | /* MX31, MX35, MX25, MX5 */ |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 58 | #define V2_TCTL_WAITEN (1 << 3) /* Wait enable mode */ |
| 59 | #define V2_TCTL_CLK_IPG (1 << 6) |
| 60 | #define V2_TCTL_FRR (1 << 9) |
| 61 | #define V2_IR 0x0c |
| 62 | #define V2_TSTAT 0x08 |
| 63 | #define V2_TSTAT_OF1 (1 << 0) |
| 64 | #define V2_TCN 0x24 |
| 65 | #define V2_TCMP 0x10 |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 66 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 67 | #define timer_is_v1() (cpu_is_mx1() || cpu_is_mx21() || cpu_is_mx27()) |
| 68 | #define timer_is_v2() (!timer_is_v1()) |
| 69 | |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 70 | static struct clock_event_device clockevent_mxc; |
| 71 | static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED; |
| 72 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 73 | static void __iomem *timer_base; |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 74 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 75 | static inline void gpt_irq_disable(void) |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 76 | { |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 77 | unsigned int tmp; |
| 78 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 79 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 80 | __raw_writel(0, timer_base + V2_IR); |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 81 | else { |
| 82 | tmp = __raw_readl(timer_base + MXC_TCTL); |
| 83 | __raw_writel(tmp & ~MX1_2_TCTL_IRQEN, timer_base + MXC_TCTL); |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | static inline void gpt_irq_enable(void) |
| 88 | { |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 89 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 90 | __raw_writel(1<<0, timer_base + V2_IR); |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 91 | else { |
| 92 | __raw_writel(__raw_readl(timer_base + MXC_TCTL) | MX1_2_TCTL_IRQEN, |
| 93 | timer_base + MXC_TCTL); |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | static void gpt_irq_acknowledge(void) |
| 98 | { |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 99 | if (timer_is_v1()) { |
| 100 | if (cpu_is_mx1()) |
| 101 | __raw_writel(0, timer_base + MX1_2_TSTAT); |
| 102 | else |
| 103 | __raw_writel(MX2_TSTAT_CAPT | MX2_TSTAT_COMP, |
| 104 | timer_base + MX1_2_TSTAT); |
| 105 | } else if (timer_is_v2()) |
Wolfram Sang | d943f2c | 2010-04-23 06:49:43 +0200 | [diff] [blame] | 106 | __raw_writel(V2_TSTAT_OF1, timer_base + V2_TSTAT); |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 107 | } |
| 108 | |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 109 | static void __iomem *sched_clock_reg; |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 110 | |
Jan Weitzel | c124bef | 2011-03-17 13:44:30 +0100 | [diff] [blame] | 111 | static DEFINE_CLOCK_DATA(cd); |
| 112 | unsigned long long notrace sched_clock(void) |
| 113 | { |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 114 | cycle_t cyc = sched_clock_reg ? __raw_readl(sched_clock_reg) : 0; |
Jan Weitzel | c124bef | 2011-03-17 13:44:30 +0100 | [diff] [blame] | 115 | |
| 116 | return cyc_to_sched_clock(&cd, cyc, (u32)~0); |
| 117 | } |
| 118 | |
| 119 | static void notrace mxc_update_sched_clock(void) |
| 120 | { |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 121 | cycle_t cyc = sched_clock_reg ? __raw_readl(sched_clock_reg) : 0; |
Jan Weitzel | c124bef | 2011-03-17 13:44:30 +0100 | [diff] [blame] | 122 | update_sched_clock(&cd, cyc, (u32)~0); |
| 123 | } |
| 124 | |
Sascha Hauer | 30c730f | 2009-02-16 14:36:49 +0100 | [diff] [blame] | 125 | static int __init mxc_clocksource_init(struct clk *timer_clk) |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 126 | { |
Holger Schurig | 058b7a6 | 2009-01-26 16:34:51 +0100 | [diff] [blame] | 127 | unsigned int c = clk_get_rate(timer_clk); |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 128 | void __iomem *reg = timer_base + (timer_is_v2() ? V2_TCN : MX1_2_TCN); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 129 | |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 130 | sched_clock_reg = reg; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 131 | |
Jan Weitzel | c124bef | 2011-03-17 13:44:30 +0100 | [diff] [blame] | 132 | init_sched_clock(&cd, mxc_update_sched_clock, 32, c); |
Russell King | 234b6ce | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 133 | return clocksource_mmio_init(reg, "mxc_timer1", c, 200, 32, |
| 134 | clocksource_mmio_readl_up); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | /* clock event */ |
| 138 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 139 | static int mx1_2_set_next_event(unsigned long evt, |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 140 | struct clock_event_device *unused) |
| 141 | { |
| 142 | unsigned long tcmp; |
| 143 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 144 | tcmp = __raw_readl(timer_base + MX1_2_TCN) + evt; |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 145 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 146 | __raw_writel(tcmp, timer_base + MX1_2_TCMP); |
| 147 | |
| 148 | return (int)(tcmp - __raw_readl(timer_base + MX1_2_TCN)) < 0 ? |
| 149 | -ETIME : 0; |
| 150 | } |
| 151 | |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 152 | static int v2_set_next_event(unsigned long evt, |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 153 | struct clock_event_device *unused) |
| 154 | { |
| 155 | unsigned long tcmp; |
| 156 | |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 157 | tcmp = __raw_readl(timer_base + V2_TCN) + evt; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 158 | |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 159 | __raw_writel(tcmp, timer_base + V2_TCMP); |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 160 | |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 161 | return (int)(tcmp - __raw_readl(timer_base + V2_TCN)) < 0 ? |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 162 | -ETIME : 0; |
| 163 | } |
| 164 | |
| 165 | #ifdef DEBUG |
| 166 | static const char *clock_event_mode_label[] = { |
| 167 | [CLOCK_EVT_MODE_PERIODIC] = "CLOCK_EVT_MODE_PERIODIC", |
| 168 | [CLOCK_EVT_MODE_ONESHOT] = "CLOCK_EVT_MODE_ONESHOT", |
| 169 | [CLOCK_EVT_MODE_SHUTDOWN] = "CLOCK_EVT_MODE_SHUTDOWN", |
| 170 | [CLOCK_EVT_MODE_UNUSED] = "CLOCK_EVT_MODE_UNUSED" |
| 171 | }; |
| 172 | #endif /* DEBUG */ |
| 173 | |
| 174 | static void mxc_set_mode(enum clock_event_mode mode, |
| 175 | struct clock_event_device *evt) |
| 176 | { |
| 177 | unsigned long flags; |
| 178 | |
| 179 | /* |
| 180 | * The timer interrupt generation is disabled at least |
| 181 | * for enough time to call mxc_set_next_event() |
| 182 | */ |
| 183 | local_irq_save(flags); |
| 184 | |
| 185 | /* Disable interrupt in GPT module */ |
| 186 | gpt_irq_disable(); |
| 187 | |
| 188 | if (mode != clockevent_mode) { |
| 189 | /* Set event time into far-far future */ |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 190 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 191 | __raw_writel(__raw_readl(timer_base + V2_TCN) - 3, |
| 192 | timer_base + V2_TCMP); |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 193 | else |
| 194 | __raw_writel(__raw_readl(timer_base + MX1_2_TCN) - 3, |
| 195 | timer_base + MX1_2_TCMP); |
| 196 | |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 197 | /* Clear pending interrupt */ |
| 198 | gpt_irq_acknowledge(); |
| 199 | } |
| 200 | |
| 201 | #ifdef DEBUG |
| 202 | printk(KERN_INFO "mxc_set_mode: changing mode from %s to %s\n", |
| 203 | clock_event_mode_label[clockevent_mode], |
| 204 | clock_event_mode_label[mode]); |
| 205 | #endif /* DEBUG */ |
| 206 | |
| 207 | /* Remember timer mode */ |
| 208 | clockevent_mode = mode; |
| 209 | local_irq_restore(flags); |
| 210 | |
| 211 | switch (mode) { |
| 212 | case CLOCK_EVT_MODE_PERIODIC: |
| 213 | printk(KERN_ERR"mxc_set_mode: Periodic mode is not " |
| 214 | "supported for i.MX\n"); |
| 215 | break; |
| 216 | case CLOCK_EVT_MODE_ONESHOT: |
| 217 | /* |
| 218 | * Do not put overhead of interrupt enable/disable into |
| 219 | * mxc_set_next_event(), the core has about 4 minutes |
| 220 | * to call mxc_set_next_event() or shutdown clock after |
| 221 | * mode switching |
| 222 | */ |
| 223 | local_irq_save(flags); |
| 224 | gpt_irq_enable(); |
| 225 | local_irq_restore(flags); |
| 226 | break; |
| 227 | case CLOCK_EVT_MODE_SHUTDOWN: |
| 228 | case CLOCK_EVT_MODE_UNUSED: |
| 229 | case CLOCK_EVT_MODE_RESUME: |
| 230 | /* Left event sources disabled, no more interrupts appear */ |
| 231 | break; |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | /* |
| 236 | * IRQ handler for the timer |
| 237 | */ |
| 238 | static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id) |
| 239 | { |
| 240 | struct clock_event_device *evt = &clockevent_mxc; |
| 241 | uint32_t tstat; |
| 242 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 243 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 244 | tstat = __raw_readl(timer_base + V2_TSTAT); |
Sascha Hauer | 81ec1f9 | 2009-04-29 13:55:13 +0200 | [diff] [blame] | 245 | else |
| 246 | tstat = __raw_readl(timer_base + MX1_2_TSTAT); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 247 | |
| 248 | gpt_irq_acknowledge(); |
| 249 | |
| 250 | evt->event_handler(evt); |
| 251 | |
| 252 | return IRQ_HANDLED; |
| 253 | } |
| 254 | |
| 255 | static struct irqaction mxc_timer_irq = { |
| 256 | .name = "i.MX Timer Tick", |
| 257 | .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, |
| 258 | .handler = mxc_timer_interrupt, |
| 259 | }; |
| 260 | |
| 261 | static struct clock_event_device clockevent_mxc = { |
| 262 | .name = "mxc_timer1", |
| 263 | .features = CLOCK_EVT_FEAT_ONESHOT, |
| 264 | .shift = 32, |
| 265 | .set_mode = mxc_set_mode, |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 266 | .set_next_event = mx1_2_set_next_event, |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 267 | .rating = 200, |
| 268 | }; |
| 269 | |
Sascha Hauer | 30c730f | 2009-02-16 14:36:49 +0100 | [diff] [blame] | 270 | static int __init mxc_clockevent_init(struct clk *timer_clk) |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 271 | { |
Holger Schurig | 058b7a6 | 2009-01-26 16:34:51 +0100 | [diff] [blame] | 272 | unsigned int c = clk_get_rate(timer_clk); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 273 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 274 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 275 | clockevent_mxc.set_next_event = v2_set_next_event; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 276 | |
Holger Schurig | 058b7a6 | 2009-01-26 16:34:51 +0100 | [diff] [blame] | 277 | clockevent_mxc.mult = div_sc(c, NSEC_PER_SEC, |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 278 | clockevent_mxc.shift); |
| 279 | clockevent_mxc.max_delta_ns = |
| 280 | clockevent_delta2ns(0xfffffffe, &clockevent_mxc); |
| 281 | clockevent_mxc.min_delta_ns = |
| 282 | clockevent_delta2ns(0xff, &clockevent_mxc); |
| 283 | |
Rusty Russell | 320ab2b | 2008-12-13 21:20:26 +1030 | [diff] [blame] | 284 | clockevent_mxc.cpumask = cpumask_of(0); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 285 | |
| 286 | clockevents_register_device(&clockevent_mxc); |
| 287 | |
| 288 | return 0; |
| 289 | } |
| 290 | |
Sascha Hauer | 8db5d1a | 2009-05-25 12:21:38 +0200 | [diff] [blame] | 291 | void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq) |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 292 | { |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 293 | uint32_t tctl_val; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 294 | |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 295 | clk_enable(timer_clk); |
| 296 | |
Sascha Hauer | 8db5d1a | 2009-05-25 12:21:38 +0200 | [diff] [blame] | 297 | timer_base = base; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 298 | |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 299 | /* |
| 300 | * Initialise to a known state (all timers off, and timing reset) |
| 301 | */ |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 302 | |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 303 | __raw_writel(0, timer_base + MXC_TCTL); |
| 304 | __raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */ |
| 305 | |
Sascha Hauer | 0f3332c | 2009-12-04 09:34:51 +0100 | [diff] [blame] | 306 | if (timer_is_v2()) |
Amit Kucheria | 38a66f5 | 2010-04-21 21:34:36 +0300 | [diff] [blame] | 307 | tctl_val = V2_TCTL_CLK_IPG | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN; |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 308 | else |
| 309 | tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN; |
| 310 | |
| 311 | __raw_writel(tctl_val, timer_base + MXC_TCTL); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 312 | |
| 313 | /* init and register the timer to the framework */ |
Sascha Hauer | 30c730f | 2009-02-16 14:36:49 +0100 | [diff] [blame] | 314 | mxc_clocksource_init(timer_clk); |
| 315 | mxc_clockevent_init(timer_clk); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 316 | |
| 317 | /* Make irqs happen */ |
Sascha Hauer | ec996ba | 2009-02-18 20:58:40 +0100 | [diff] [blame] | 318 | setup_irq(irq, &mxc_timer_irq); |
Juergen Beisert | d0f349f | 2008-07-05 10:02:50 +0200 | [diff] [blame] | 319 | } |