* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <linux/config.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/interrupt.h>
-
+#include <linux/amba/bus.h>
+#include <linux/amba/clcd.h>
+#include <linux/amba/pl061.h>
+#include <linux/amba/mmci.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/cnt32_to_63.h>
+#include <linux/io.h>
+#include <linux/gfp.h>
+
+#include <asm/clkdev.h>
#include <asm/system.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
+#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/leds.h>
-#include <asm/hardware/amba.h>
-#include <asm/hardware/amba_clcd.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/icst307.h>
+#include <asm/hardware/vic.h>
+#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
-#include <asm/mach/mmc.h>
#include "core.h"
#include "clock.h"
#define VA_VIC_BASE __io_address(VERSATILE_VIC_BASE)
#define VA_SIC_BASE __io_address(VERSATILE_SIC_BASE)
-static void vic_mask_irq(unsigned int irq)
-{
- irq -= IRQ_VIC_START;
- writel(1 << irq, VA_VIC_BASE + VIC_IRQ_ENABLE_CLEAR);
-}
-
-static void vic_unmask_irq(unsigned int irq)
-{
- irq -= IRQ_VIC_START;
- writel(1 << irq, VA_VIC_BASE + VIC_IRQ_ENABLE);
-}
-
-static struct irqchip vic_chip = {
- .ack = vic_mask_irq,
- .mask = vic_mask_irq,
- .unmask = vic_unmask_irq,
-};
-
static void sic_mask_irq(unsigned int irq)
{
irq -= IRQ_SIC_START;
writel(1 << irq, VA_SIC_BASE + SIC_IRQ_ENABLE_SET);
}
-static struct irqchip sic_chip = {
+static struct irq_chip sic_chip = {
+ .name = "SIC",
.ack = sic_mask_irq,
.mask = sic_mask_irq,
.unmask = sic_unmask_irq,
};
static void
-sic_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
+sic_handle_irq(unsigned int irq, struct irq_desc *desc)
{
unsigned long status = readl(VA_SIC_BASE + SIC_IRQ_STATUS);
if (status == 0) {
- do_bad_IRQ(irq, desc, regs);
+ do_bad_IRQ(irq, desc);
return;
}
irq += IRQ_SIC_START;
- desc = irq_desc + irq;
- desc_handle_irq(irq, desc, regs);
+ generic_handle_irq(irq);
} while (status);
}
void __init versatile_init_irq(void)
{
- unsigned int i, value;
+ unsigned int i;
- /* Disable all interrupts initially. */
+ vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0);
- writel(0, VA_VIC_BASE + VIC_INT_SELECT);
- writel(0, VA_VIC_BASE + VIC_IRQ_ENABLE);
- writel(~0, VA_VIC_BASE + VIC_IRQ_ENABLE_CLEAR);
- writel(0, VA_VIC_BASE + VIC_IRQ_STATUS);
- writel(0, VA_VIC_BASE + VIC_ITCR);
- writel(~0, VA_VIC_BASE + VIC_IRQ_SOFT_CLEAR);
-
- /*
- * Make sure we clear all existing interrupts
- */
- writel(0, VA_VIC_BASE + VIC_VECT_ADDR);
- for (i = 0; i < 19; i++) {
- value = readl(VA_VIC_BASE + VIC_VECT_ADDR);
- writel(value, VA_VIC_BASE + VIC_VECT_ADDR);
- }
-
- for (i = 0; i < 16; i++) {
- value = readl(VA_VIC_BASE + VIC_VECT_CNTL0 + (i * 4));
- writel(value | VICVectCntl_Enable | i, VA_VIC_BASE + VIC_VECT_CNTL0 + (i * 4));
- }
-
- writel(32, VA_VIC_BASE + VIC_DEF_VECT_ADDR);
-
- for (i = IRQ_VIC_START; i <= IRQ_VIC_END; i++) {
- if (i != IRQ_VICSOURCE31) {
- set_irq_chip(i, &vic_chip);
- set_irq_handler(i, do_level_IRQ);
- set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
- }
- }
-
- set_irq_handler(IRQ_VICSOURCE31, sic_handle_irq);
- vic_unmask_irq(IRQ_VICSOURCE31);
+ set_irq_chained_handler(IRQ_VICSOURCE31, sic_handle_irq);
/* Do second interrupt controller */
writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR);
for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) {
if ((PIC_MASK & (1 << (i - IRQ_SIC_START))) == 0) {
set_irq_chip(i, &sic_chip);
- set_irq_handler(i, do_level_IRQ);
+ set_irq_handler(i, handle_level_irq);
set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
}
}
}
static struct map_desc versatile_io_desc[] __initdata = {
- { IO_ADDRESS(VERSATILE_SYS_BASE), VERSATILE_SYS_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(VERSATILE_SIC_BASE), VERSATILE_SIC_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(VERSATILE_VIC_BASE), VERSATILE_VIC_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(VERSATILE_SCTL_BASE), VERSATILE_SCTL_BASE, SZ_4K * 9, MT_DEVICE },
+ {
+ .virtual = IO_ADDRESS(VERSATILE_SYS_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_SYS_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(VERSATILE_SIC_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_SIC_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(VERSATILE_VIC_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_VIC_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(VERSATILE_SCTL_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_SCTL_BASE),
+ .length = SZ_4K * 9,
+ .type = MT_DEVICE
+ },
#ifdef CONFIG_MACH_VERSATILE_AB
- { IO_ADDRESS(VERSATILE_GPIO0_BASE), VERSATILE_GPIO0_BASE, SZ_4K, MT_DEVICE },
- { IO_ADDRESS(VERSATILE_IB2_BASE), VERSATILE_IB2_BASE, SZ_64M, MT_DEVICE },
+ {
+ .virtual = IO_ADDRESS(VERSATILE_GPIO0_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_GPIO0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = IO_ADDRESS(VERSATILE_IB2_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_IB2_BASE),
+ .length = SZ_64M,
+ .type = MT_DEVICE
+ },
#endif
#ifdef CONFIG_DEBUG_LL
- { IO_ADDRESS(VERSATILE_UART0_BASE), VERSATILE_UART0_BASE, SZ_4K, MT_DEVICE },
+ {
+ .virtual = IO_ADDRESS(VERSATILE_UART0_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_UART0_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ },
#endif
#ifdef CONFIG_PCI
- { IO_ADDRESS(VERSATILE_PCI_CORE_BASE), VERSATILE_PCI_CORE_BASE, SZ_4K, MT_DEVICE },
- { VERSATILE_PCI_VIRT_BASE, VERSATILE_PCI_BASE, VERSATILE_PCI_BASE_SIZE, MT_DEVICE },
- { VERSATILE_PCI_CFG_VIRT_BASE, VERSATILE_PCI_CFG_BASE, VERSATILE_PCI_CFG_BASE_SIZE, MT_DEVICE },
+ {
+ .virtual = IO_ADDRESS(VERSATILE_PCI_CORE_BASE),
+ .pfn = __phys_to_pfn(VERSATILE_PCI_CORE_BASE),
+ .length = SZ_4K,
+ .type = MT_DEVICE
+ }, {
+ .virtual = (unsigned long)VERSATILE_PCI_VIRT_BASE,
+ .pfn = __phys_to_pfn(VERSATILE_PCI_BASE),
+ .length = VERSATILE_PCI_BASE_SIZE,
+ .type = MT_DEVICE
+ }, {
+ .virtual = (unsigned long)VERSATILE_PCI_CFG_VIRT_BASE,
+ .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE),
+ .length = VERSATILE_PCI_CFG_BASE_SIZE,
+ .type = MT_DEVICE
+ },
#if 0
- { VERSATILE_PCI_VIRT_MEM_BASE0, VERSATILE_PCI_MEM_BASE0, SZ_16M, MT_DEVICE },
- { VERSATILE_PCI_VIRT_MEM_BASE1, VERSATILE_PCI_MEM_BASE1, SZ_16M, MT_DEVICE },
- { VERSATILE_PCI_VIRT_MEM_BASE2, VERSATILE_PCI_MEM_BASE2, SZ_16M, MT_DEVICE },
+ {
+ .virtual = VERSATILE_PCI_VIRT_MEM_BASE0,
+ .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0),
+ .length = SZ_16M,
+ .type = MT_DEVICE
+ }, {
+ .virtual = VERSATILE_PCI_VIRT_MEM_BASE1,
+ .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE1),
+ .length = SZ_16M,
+ .type = MT_DEVICE
+ }, {
+ .virtual = VERSATILE_PCI_VIRT_MEM_BASE2,
+ .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE2),
+ .length = SZ_16M,
+ .type = MT_DEVICE
+ },
#endif
#endif
};
/*
* This is the Versatile sched_clock implementation. This has
- * a resolution of 41.7ns, and a maximum value of about 179s.
+ * a resolution of 41.7ns, and a maximum value of about 35583 days.
+ *
+ * The return value is guaranteed to be monotonic in that range as
+ * long as there is always less than 89 seconds between successive
+ * calls to this function.
*/
unsigned long long sched_clock(void)
{
- unsigned long long v;
+ unsigned long long v = cnt32_to_63(readl(VERSATILE_REFCOUNTER));
- v = (unsigned long long)readl(VERSATILE_REFCOUNTER) * 125;
- do_div(v, 3);
+ /* the <<1 gets rid of the cnt_32_to_63 top bit saving on a bic insn */
+ v *= 125<<1;
+ do_div(v, 3<<1);
return v;
}
static struct resource versatile_flash_resource = {
.start = VERSATILE_FLASH_BASE,
- .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE,
+ .end = VERSATILE_FLASH_BASE + VERSATILE_FLASH_SIZE - 1,
.flags = IORESOURCE_MEM,
};
.resource = smc91x_resources,
};
+static struct resource versatile_i2c_resource = {
+ .start = VERSATILE_I2C_BASE,
+ .end = VERSATILE_I2C_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device versatile_i2c_device = {
+ .name = "versatile-i2c",
+ .id = 0,
+ .num_resources = 1,
+ .resource = &versatile_i2c_resource,
+};
+
+static struct i2c_board_info versatile_i2c_board_info[] = {
+ {
+ I2C_BOARD_INFO("ds1338", 0xd0 >> 1),
+ },
+};
+
+static int __init versatile_i2c_init(void)
+{
+ return i2c_register_board_info(0, versatile_i2c_board_info,
+ ARRAY_SIZE(versatile_i2c_board_info));
+}
+arch_initcall(versatile_i2c_init);
+
#define VERSATILE_SYSMCI (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
unsigned int mmc_status(struct device *dev)
return readl(VERSATILE_SYSMCI) & mask;
}
-static struct mmc_platform_data mmc0_plat_data = {
+static struct mmci_platform_data mmc0_plat_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.status = mmc_status,
+ .gpio_wp = -1,
+ .gpio_cd = -1,
};
/*
static void versatile_oscvco_set(struct clk *clk, struct icst307_vco vco)
{
- void __iomem *sys_lock = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LOCK_OFFSET;
-#if defined(CONFIG_ARCH_VERSATILE_PB)
- void __iomem *sys_osc = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC4_OFFSET;
-#elif defined(CONFIG_MACH_VERSATILE_AB)
- void __iomem *sys_osc = __io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_OSC1_OFFSET;
-#endif
+ void __iomem *sys = __io_address(VERSATILE_SYS_BASE);
+ void __iomem *sys_lock = sys + VERSATILE_SYS_LOCK_OFFSET;
u32 val;
- val = readl(sys_osc) & ~0x7ffff;
+ val = readl(sys + clk->oscoff) & ~0x7ffff;
val |= vco.v | (vco.r << 9) | (vco.s << 16);
writel(0xa05f, sys_lock);
- writel(val, sys_osc);
+ writel(val, sys + clk->oscoff);
writel(0, sys_lock);
}
-static struct clk versatile_clcd_clk = {
- .name = "CLCDCLK",
+static struct clk osc4_clk = {
.params = &versatile_oscvco_params,
- .setvco = versatile_oscvco_set,
+ .oscoff = VERSATILE_SYS_OSCCLCD_OFFSET,
+ .setvco = versatile_oscvco_set,
+};
+
+/*
+ * These are fixed clocks.
+ */
+static struct clk ref24_clk = {
+ .rate = 24000000,
+};
+
+static struct clk_lookup lookups[] = {
+ { /* UART0 */
+ .dev_id = "dev:f1",
+ .clk = &ref24_clk,
+ }, { /* UART1 */
+ .dev_id = "dev:f2",
+ .clk = &ref24_clk,
+ }, { /* UART2 */
+ .dev_id = "dev:f3",
+ .clk = &ref24_clk,
+ }, { /* UART3 */
+ .dev_id = "fpga:09",
+ .clk = &ref24_clk,
+ }, { /* KMI0 */
+ .dev_id = "fpga:06",
+ .clk = &ref24_clk,
+ }, { /* KMI1 */
+ .dev_id = "fpga:07",
+ .clk = &ref24_clk,
+ }, { /* MMC0 */
+ .dev_id = "fpga:05",
+ .clk = &ref24_clk,
+ }, { /* MMC1 */
+ .dev_id = "fpga:0b",
+ .clk = &ref24_clk,
+ }, { /* CLCD */
+ .dev_id = "dev:20",
+ .clk = &osc4_clk,
+ }
};
/*
/*
* If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light off
*/
- if (fb->panel == &sanyo_2_5_in) {
+ if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) {
void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL);
unsigned long ctrl;
/*
* If the LCD is Sanyo 2x5 in on the IB2 board, turn the back-light on
*/
- if (fb->panel == &sanyo_2_5_in) {
+ if (machine_is_versatile_ab() && fb->panel == &sanyo_2_5_in) {
void __iomem *versatile_ib2_ctrl = __io_address(VERSATILE_IB2_CTRL);
unsigned long ctrl;
.remove = versatile_clcd_remove,
};
+static struct pl061_platform_data gpio0_plat_data = {
+ .gpio_base = 0,
+ .irq_base = IRQ_GPIO0_START,
+};
+
+static struct pl061_platform_data gpio1_plat_data = {
+ .gpio_base = 8,
+ .irq_base = IRQ_GPIO1_START,
+};
+
#define AACI_IRQ { IRQ_AACI, NO_IRQ }
#define AACI_DMA { 0x80, 0x81 }
#define MMCI0_IRQ { IRQ_MMCI0A,IRQ_SIC_MMCI0B }
AMBA_DEVICE(dmac, "dev:30", DMAC, NULL);
AMBA_DEVICE(sctl, "dev:e0", SCTL, NULL);
AMBA_DEVICE(wdog, "dev:e1", WATCHDOG, NULL);
-AMBA_DEVICE(gpio0, "dev:e4", GPIO0, NULL);
-AMBA_DEVICE(gpio1, "dev:e5", GPIO1, NULL);
+AMBA_DEVICE(gpio0, "dev:e4", GPIO0, &gpio0_plat_data);
+AMBA_DEVICE(gpio1, "dev:e5", GPIO1, &gpio1_plat_data);
AMBA_DEVICE(rtc, "dev:e8", RTC, NULL);
AMBA_DEVICE(sci0, "dev:f0", SCI, NULL);
AMBA_DEVICE(uart0, "dev:f1", UART0, NULL);
{
int i;
- clk_register(&versatile_clcd_clk);
+ clkdev_add_table(lookups, ARRAY_SIZE(lookups));
platform_device_register(&versatile_flash_device);
+ platform_device_register(&versatile_i2c_device);
platform_device_register(&smc91x_device);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
#define TICKS2USECS(x) ((x) / TICKS_PER_uSEC)
#endif
-/*
- * Returns number of ms since last clock interrupt. Note that interrupts
- * will have been disabled by do_gettimeoffset()
- */
-static unsigned long versatile_gettimeoffset(void)
+static void timer_set_mode(enum clock_event_mode mode,
+ struct clock_event_device *clk)
{
- unsigned long ticks1, ticks2, status;
+ unsigned long ctrl;
- /*
- * Get the current number of ticks. Note that there is a race
- * condition between us reading the timer and checking for
- * an interrupt. We get around this by ensuring that the
- * counter has not reloaded between our two reads.
- */
- ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
- do {
- ticks1 = ticks2;
- status = __raw_readl(VA_IC_BASE + VIC_IRQ_RAW_STATUS);
- ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
- } while (ticks2 > ticks1);
+ switch(mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD);
- /*
- * Number of ticks since last interrupt.
- */
- ticks1 = TIMER_RELOAD - ticks2;
+ ctrl = TIMER_CTRL_PERIODIC;
+ ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ENABLE;
+ break;
+ case CLOCK_EVT_MODE_ONESHOT:
+ /* period set, and timer enabled in 'next_event' hook */
+ ctrl = TIMER_CTRL_ONESHOT;
+ ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE;
+ break;
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ default:
+ ctrl = 0;
+ }
- /*
- * Interrupt pending? If so, we've reloaded once already.
- *
- * FIXME: Need to check this is effectively timer 0 that expires
- */
- if (status & IRQMASK_TIMERINT0_1)
- ticks1 += TIMER_RELOAD;
+ writel(ctrl, TIMER0_VA_BASE + TIMER_CTRL);
+}
- /*
- * Convert the ticks to usecs
- */
- return TICKS2USECS(ticks1);
+static int timer_set_next_event(unsigned long evt,
+ struct clock_event_device *unused)
+{
+ unsigned long ctrl = readl(TIMER0_VA_BASE + TIMER_CTRL);
+
+ writel(evt, TIMER0_VA_BASE + TIMER_LOAD);
+ writel(ctrl | TIMER_CTRL_ENABLE, TIMER0_VA_BASE + TIMER_CTRL);
+
+ return 0;
}
+static struct clock_event_device timer0_clockevent = {
+ .name = "timer0",
+ .shift = 32,
+ .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+ .set_mode = timer_set_mode,
+ .set_next_event = timer_set_next_event,
+};
+
/*
* IRQ handler for the timer
*/
-static irqreturn_t versatile_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t versatile_timer_interrupt(int irq, void *dev_id)
{
- write_seqlock(&xtime_lock);
+ struct clock_event_device *evt = &timer0_clockevent;
- // ...clear the interrupt
writel(1, TIMER0_VA_BASE + TIMER_INTCLR);
- timer_tick(regs);
-
- write_sequnlock(&xtime_lock);
+ evt->event_handler(evt);
return IRQ_HANDLED;
}
static struct irqaction versatile_timer_irq = {
.name = "Versatile Timer Tick",
- .flags = SA_INTERRUPT | SA_TIMER,
+ .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
.handler = versatile_timer_interrupt,
};
+static cycle_t versatile_get_cycles(struct clocksource *cs)
+{
+ return ~readl(TIMER3_VA_BASE + TIMER_VALUE);
+}
+
+static struct clocksource clocksource_versatile = {
+ .name = "timer3",
+ .rating = 200,
+ .read = versatile_get_cycles,
+ .mask = CLOCKSOURCE_MASK(32),
+ .shift = 20,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+static int __init versatile_clocksource_init(void)
+{
+ /* setup timer3 as free-running clocksource */
+ writel(0, TIMER3_VA_BASE + TIMER_CTRL);
+ writel(0xffffffff, TIMER3_VA_BASE + TIMER_LOAD);
+ writel(0xffffffff, TIMER3_VA_BASE + TIMER_VALUE);
+ writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,
+ TIMER3_VA_BASE + TIMER_CTRL);
+
+ clocksource_versatile.mult =
+ clocksource_khz2mult(1000, clocksource_versatile.shift);
+ clocksource_register(&clocksource_versatile);
+
+ return 0;
+}
+
/*
* Set up timer interrupt, and return the current time in seconds.
*/
writel(0, TIMER2_VA_BASE + TIMER_CTRL);
writel(0, TIMER3_VA_BASE + TIMER_CTRL);
- writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD);
- writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_VALUE);
- writel(TIMER_DIVISOR | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC |
- TIMER_CTRL_IE, TIMER0_VA_BASE + TIMER_CTRL);
-
/*
* Make irqs happen for the system timer
*/
setup_irq(IRQ_TIMERINT0_1, &versatile_timer_irq);
+
+ versatile_clocksource_init();
+
+ timer0_clockevent.mult =
+ div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift);
+ timer0_clockevent.max_delta_ns =
+ clockevent_delta2ns(0xffffffff, &timer0_clockevent);
+ timer0_clockevent.min_delta_ns =
+ clockevent_delta2ns(0xf, &timer0_clockevent);
+
+ timer0_clockevent.cpumask = cpumask_of(0);
+ clockevents_register_device(&timer0_clockevent);
}
struct sys_timer versatile_timer = {
.init = versatile_timer_init,
- .offset = versatile_gettimeoffset,
};
+
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff