* Timer Register Offset Definitions of Timer 1, Increment base address by 4
* and use same offsets for Timer 2
*/
-#define XTTCPSS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */
-#define XTTCPSS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */
-#define XTTCPSS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */
-#define XTTCPSS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */
-#define XTTCPSS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */
-#define XTTCPSS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */
-#define XTTCPSS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */
-#define XTTCPSS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */
-#define XTTCPSS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */
-
-#define XTTCPSS_CNT_CNTRL_DISABLE_MASK 0x1
+#define XTTCPS_CLK_CNTRL_OFFSET 0x00 /* Clock Control Reg, RW */
+#define XTTCPS_CNT_CNTRL_OFFSET 0x0C /* Counter Control Reg, RW */
+#define XTTCPS_COUNT_VAL_OFFSET 0x18 /* Counter Value Reg, RO */
+#define XTTCPS_INTR_VAL_OFFSET 0x24 /* Interval Count Reg, RW */
+#define XTTCPS_MATCH_1_OFFSET 0x30 /* Match 1 Value Reg, RW */
+#define XTTCPS_MATCH_2_OFFSET 0x3C /* Match 2 Value Reg, RW */
+#define XTTCPS_MATCH_3_OFFSET 0x48 /* Match 3 Value Reg, RW */
+#define XTTCPS_ISR_OFFSET 0x54 /* Interrupt Status Reg, RO */
+#define XTTCPS_IER_OFFSET 0x60 /* Interrupt Enable Reg, RW */
+
+#define XTTCPS_CNT_CNTRL_DISABLE_MASK 0x1
/* Setup the timers to use pre-scaling, using a fixed value for now that will
* work across most input frequency, but it may need to be more dynamic
#define CNT_CNTRL_RESET (1<<4)
/**
- * struct xttcpss_timer - This definition defines local timer structure
+ * struct xttcps_timer - This definition defines local timer structure
*
* @base_addr: Base address of timer
**/
-struct xttcpss_timer {
+struct xttcps_timer {
void __iomem *base_addr;
};
-struct xttcpss_timer_clocksource {
- struct xttcpss_timer xttc;
+struct xttcps_timer_clocksource {
+ struct xttcps_timer xttc;
struct clocksource cs;
};
-#define to_xttcpss_timer_clksrc(x) \
- container_of(x, struct xttcpss_timer_clocksource, cs)
+#define to_xttcps_timer_clksrc(x) \
+ container_of(x, struct xttcps_timer_clocksource, cs)
-struct xttcpss_timer_clockevent {
- struct xttcpss_timer xttc;
+struct xttcps_timer_clockevent {
+ struct xttcps_timer xttc;
struct clock_event_device ce;
struct clk *clk;
};
-#define to_xttcpss_timer_clkevent(x) \
- container_of(x, struct xttcpss_timer_clockevent, ce)
+#define to_xttcps_timer_clkevent(x) \
+ container_of(x, struct xttcps_timer_clockevent, ce)
/**
- * xttcpss_set_interval - Set the timer interval value
+ * xttcps_set_interval - Set the timer interval value
*
* @timer: Pointer to the timer instance
* @cycles: Timer interval ticks
**/
-static void xttcpss_set_interval(struct xttcpss_timer *timer,
+static void xttcps_set_interval(struct xttcps_timer *timer,
unsigned long cycles)
{
u32 ctrl_reg;
/* Disable the counter, set the counter value and re-enable counter */
- ctrl_reg = __raw_readl(timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
- ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK;
- __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ ctrl_reg = __raw_readl(timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);
+ ctrl_reg |= XTTCPS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);
- __raw_writel(cycles, timer->base_addr + XTTCPSS_INTR_VAL_OFFSET);
+ __raw_writel(cycles, timer->base_addr + XTTCPS_INTR_VAL_OFFSET);
/* Reset the counter (0x10) so that it starts from 0, one-shot
mode makes this needed for timing to be right. */
ctrl_reg |= CNT_CNTRL_RESET;
- ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK;
- __raw_writel(ctrl_reg, timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK;
+ __raw_writel(ctrl_reg, timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);
}
/**
- * xttcpss_clock_event_interrupt - Clock event timer interrupt handler
+ * xttcps_clock_event_interrupt - Clock event timer interrupt handler
*
* @irq: IRQ number of the Timer
- * @dev_id: void pointer to the xttcpss_timer instance
+ * @dev_id: void pointer to the xttcps_timer instance
*
* returns: Always IRQ_HANDLED - success
**/
-static irqreturn_t xttcpss_clock_event_interrupt(int irq, void *dev_id)
+static irqreturn_t xttcps_clock_event_interrupt(int irq, void *dev_id)
{
- struct xttcpss_timer_clockevent *xttce = dev_id;
- struct xttcpss_timer *timer = &xttce->xttc;
+ struct xttcps_timer_clockevent *xttce = dev_id;
+ struct xttcps_timer *timer = &xttce->xttc;
/* Acknowledge the interrupt and call event handler */
- __raw_writel(__raw_readl(timer->base_addr + XTTCPSS_ISR_OFFSET),
- timer->base_addr + XTTCPSS_ISR_OFFSET);
+ __raw_writel(__raw_readl(timer->base_addr + XTTCPS_ISR_OFFSET),
+ timer->base_addr + XTTCPS_ISR_OFFSET);
xttce->ce.event_handler(&xttce->ce);
**/
static cycle_t __xttc_clocksource_read(struct clocksource *cs)
{
- struct xttcpss_timer *timer = &to_xttcpss_timer_clksrc(cs)->xttc;
+ struct xttcps_timer *timer = &to_xttcps_timer_clksrc(cs)->xttc;
return (cycle_t)__raw_readl(timer->base_addr +
- XTTCPSS_COUNT_VAL_OFFSET);
+ XTTCPS_COUNT_VAL_OFFSET);
}
/**
- * xttcpss_set_next_event - Sets the time interval for next event
+ * xttcps_set_next_event - Sets the time interval for next event
*
* @cycles: Timer interval ticks
* @evt: Address of clock event instance
*
* returns: Always 0 - success
**/
-static int xttcpss_set_next_event(unsigned long cycles,
+static int xttcps_set_next_event(unsigned long cycles,
struct clock_event_device *evt)
{
- struct xttcpss_timer_clockevent *xttce = to_xttcpss_timer_clkevent(evt);
- struct xttcpss_timer *timer = &xttce->xttc;
+ struct xttcps_timer_clockevent *xttce = to_xttcps_timer_clkevent(evt);
+ struct xttcps_timer *timer = &xttce->xttc;
- xttcpss_set_interval(timer, cycles);
+ xttcps_set_interval(timer, cycles);
return 0;
}
/**
- * xttcpss_set_mode - Sets the mode of timer
+ * xttcps_set_mode - Sets the mode of timer
*
* @mode: Mode to be set
* @evt: Address of clock event instance
**/
-static void xttcpss_set_mode(enum clock_event_mode mode,
+static void xttcps_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
- struct xttcpss_timer_clockevent *xttce = to_xttcpss_timer_clkevent(evt);
- struct xttcpss_timer *timer = &xttce->xttc;
+ struct xttcps_timer_clockevent *xttce = to_xttcps_timer_clkevent(evt);
+ struct xttcps_timer *timer = &xttce->xttc;
u32 ctrl_reg;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
- xttcpss_set_interval(timer,
+ xttcps_set_interval(timer,
DIV_ROUND_CLOSEST(clk_get_rate(xttce->clk),
PRESCALE * HZ));
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
ctrl_reg = __raw_readl(timer->base_addr +
- XTTCPSS_CNT_CNTRL_OFFSET);
- ctrl_reg |= XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ XTTCPS_CNT_CNTRL_OFFSET);
+ ctrl_reg |= XTTCPS_CNT_CNTRL_DISABLE_MASK;
__raw_writel(ctrl_reg,
- timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);
break;
case CLOCK_EVT_MODE_RESUME:
ctrl_reg = __raw_readl(timer->base_addr +
- XTTCPSS_CNT_CNTRL_OFFSET);
- ctrl_reg &= ~XTTCPSS_CNT_CNTRL_DISABLE_MASK;
+ XTTCPS_CNT_CNTRL_OFFSET);
+ ctrl_reg &= ~XTTCPS_CNT_CNTRL_DISABLE_MASK;
__raw_writel(ctrl_reg,
- timer->base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ timer->base_addr + XTTCPS_CNT_CNTRL_OFFSET);
break;
}
}
static void __init zynq_ttc_setup_clocksource(struct device_node *np,
void __iomem *base)
{
- struct xttcpss_timer_clocksource *ttccs;
+ struct xttcps_timer_clocksource *ttccs;
struct clk *clk;
int err;
u32 reg;
ttccs->cs.mask = CLOCKSOURCE_MASK(16);
ttccs->cs.flags = CLOCK_SOURCE_IS_CONTINUOUS;
- __raw_writel(0x0, ttccs->xttc.base_addr + XTTCPSS_IER_OFFSET);
+ __raw_writel(0x0, ttccs->xttc.base_addr + XTTCPS_IER_OFFSET);
__raw_writel(CLK_CNTRL_PRESCALE | CLK_CNTRL_PRESCALE_EN,
- ttccs->xttc.base_addr + XTTCPSS_CLK_CNTRL_OFFSET);
+ ttccs->xttc.base_addr + XTTCPS_CLK_CNTRL_OFFSET);
__raw_writel(CNT_CNTRL_RESET,
- ttccs->xttc.base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ ttccs->xttc.base_addr + XTTCPS_CNT_CNTRL_OFFSET);
err = clocksource_register_hz(&ttccs->cs, clk_get_rate(clk) / PRESCALE);
if (WARN_ON(err))
static void __init zynq_ttc_setup_clockevent(struct device_node *np,
void __iomem *base)
{
- struct xttcpss_timer_clockevent *ttcce;
+ struct xttcps_timer_clockevent *ttcce;
int err, irq;
u32 reg;
ttcce->ce.name = np->name;
ttcce->ce.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
- ttcce->ce.set_next_event = xttcpss_set_next_event;
- ttcce->ce.set_mode = xttcpss_set_mode;
+ ttcce->ce.set_next_event = xttcps_set_next_event;
+ ttcce->ce.set_mode = xttcps_set_mode;
ttcce->ce.rating = 200;
ttcce->ce.irq = irq;
- __raw_writel(0x23, ttcce->xttc.base_addr + XTTCPSS_CNT_CNTRL_OFFSET);
+ __raw_writel(0x23, ttcce->xttc.base_addr + XTTCPS_CNT_CNTRL_OFFSET);
__raw_writel(CLK_CNTRL_PRESCALE | CLK_CNTRL_PRESCALE_EN,
- ttcce->xttc.base_addr + XTTCPSS_CLK_CNTRL_OFFSET);
- __raw_writel(0x1, ttcce->xttc.base_addr + XTTCPSS_IER_OFFSET);
+ ttcce->xttc.base_addr + XTTCPS_CLK_CNTRL_OFFSET);
+ __raw_writel(0x1, ttcce->xttc.base_addr + XTTCPS_IER_OFFSET);
- err = request_irq(irq, xttcpss_clock_event_interrupt, IRQF_TIMER,
+ err = request_irq(irq, xttcps_clock_event_interrupt, IRQF_TIMER,
np->name, ttcce);
if (WARN_ON(err))
return;
};
/**
- * xttcpss_timer_init - Initialize the timer
+ * xttcps_timer_init - Initialize the timer
*
* Initializes the timer hardware and register the clock source and clock event
* timers with Linux kernal timer framework
**/
-void __init xttcpss_timer_init(void)
+void __init xttcps_timer_init(void)
{
struct device_node *np;
projects / linux.git / commitdiff