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Commit fc2a9f0b authored by Sascha Hauer's avatar Sascha Hauer
Browse files

MXC: i.MX25 timer support

parent 12b8eb86
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+9 −9
Original line number Original line Diff line number Diff line
@@ -47,7 +47,7 @@
#define MX2_TSTAT_CAPT		(1 << 1)
#define MX2_TSTAT_CAPT		(1 << 1)
#define MX2_TSTAT_COMP		(1 << 0)
#define MX2_TSTAT_COMP		(1 << 0)


/* MX31, MX35 */
/* MX31, MX35, MX25 */
#define MX3_TCTL_WAITEN		(1 << 3)
#define MX3_TCTL_WAITEN		(1 << 3)
#define MX3_TCTL_CLK_IPG	(1 << 6)
#define MX3_TCTL_CLK_IPG	(1 << 6)
#define MX3_TCTL_FRR		(1 << 9)
#define MX3_TCTL_FRR		(1 << 9)
@@ -66,7 +66,7 @@ static inline void gpt_irq_disable(void)
{
{
	unsigned int tmp;
	unsigned int tmp;


	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		__raw_writel(0, timer_base + MX3_IR);
		__raw_writel(0, timer_base + MX3_IR);
	else {
	else {
		tmp = __raw_readl(timer_base + MXC_TCTL);
		tmp = __raw_readl(timer_base + MXC_TCTL);
@@ -76,7 +76,7 @@ static inline void gpt_irq_disable(void)


static inline void gpt_irq_enable(void)
static inline void gpt_irq_enable(void)
{
{
	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		__raw_writel(1<<0, timer_base + MX3_IR);
		__raw_writel(1<<0, timer_base + MX3_IR);
	else {
	else {
		__raw_writel(__raw_readl(timer_base + MXC_TCTL) | MX1_2_TCTL_IRQEN,
		__raw_writel(__raw_readl(timer_base + MXC_TCTL) | MX1_2_TCTL_IRQEN,
@@ -90,7 +90,7 @@ static void gpt_irq_acknowledge(void)
		__raw_writel(0, timer_base + MX1_2_TSTAT);
		__raw_writel(0, timer_base + MX1_2_TSTAT);
	if (cpu_is_mx2())
	if (cpu_is_mx2())
		__raw_writel(MX2_TSTAT_CAPT | MX2_TSTAT_COMP, timer_base + MX1_2_TSTAT);
		__raw_writel(MX2_TSTAT_CAPT | MX2_TSTAT_COMP, timer_base + MX1_2_TSTAT);
	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		__raw_writel(MX3_TSTAT_OF1, timer_base + MX3_TSTAT);
		__raw_writel(MX3_TSTAT_OF1, timer_base + MX3_TSTAT);
}
}


@@ -117,7 +117,7 @@ static int __init mxc_clocksource_init(struct clk *timer_clk)
{
{
	unsigned int c = clk_get_rate(timer_clk);
	unsigned int c = clk_get_rate(timer_clk);


	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		clocksource_mxc.read = mx3_get_cycles;
		clocksource_mxc.read = mx3_get_cycles;


	clocksource_mxc.mult = clocksource_hz2mult(c,
	clocksource_mxc.mult = clocksource_hz2mult(c,
@@ -180,7 +180,7 @@ static void mxc_set_mode(enum clock_event_mode mode,


	if (mode != clockevent_mode) {
	if (mode != clockevent_mode) {
		/* Set event time into far-far future */
		/* Set event time into far-far future */
		if (cpu_is_mx3())
		if (cpu_is_mx3() || cpu_is_mx25())
			__raw_writel(__raw_readl(timer_base + MX3_TCN) - 3,
			__raw_writel(__raw_readl(timer_base + MX3_TCN) - 3,
					timer_base + MX3_TCMP);
					timer_base + MX3_TCMP);
		else
		else
@@ -233,7 +233,7 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
	struct clock_event_device *evt = &clockevent_mxc;
	struct clock_event_device *evt = &clockevent_mxc;
	uint32_t tstat;
	uint32_t tstat;


	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		tstat = __raw_readl(timer_base + MX3_TSTAT);
		tstat = __raw_readl(timer_base + MX3_TSTAT);
	else
	else
		tstat = __raw_readl(timer_base + MX1_2_TSTAT);
		tstat = __raw_readl(timer_base + MX1_2_TSTAT);
@@ -264,7 +264,7 @@ static int __init mxc_clockevent_init(struct clk *timer_clk)
{
{
	unsigned int c = clk_get_rate(timer_clk);
	unsigned int c = clk_get_rate(timer_clk);


	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		clockevent_mxc.set_next_event = mx3_set_next_event;
		clockevent_mxc.set_next_event = mx3_set_next_event;


	clockevent_mxc.mult = div_sc(c, NSEC_PER_SEC,
	clockevent_mxc.mult = div_sc(c, NSEC_PER_SEC,
@@ -296,7 +296,7 @@ void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq)
	__raw_writel(0, timer_base + MXC_TCTL);
	__raw_writel(0, timer_base + MXC_TCTL);
	__raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */
	__raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */


	if (cpu_is_mx3())
	if (cpu_is_mx3() || cpu_is_mx25())
		tctl_val = MX3_TCTL_CLK_IPG | MX3_TCTL_FRR | MX3_TCTL_WAITEN | MXC_TCTL_TEN;
		tctl_val = MX3_TCTL_CLK_IPG | MX3_TCTL_FRR | MX3_TCTL_WAITEN | MXC_TCTL_TEN;
	else
	else
		tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN;
		tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN;