diff options
Diffstat (limited to 'target/linux/cns3xxx/patches-3.3/102-cns3xxx_timers.patch')
-rw-r--r-- | target/linux/cns3xxx/patches-3.3/102-cns3xxx_timers.patch | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/target/linux/cns3xxx/patches-3.3/102-cns3xxx_timers.patch b/target/linux/cns3xxx/patches-3.3/102-cns3xxx_timers.patch deleted file mode 100644 index c8e9be3e4b..0000000000 --- a/target/linux/cns3xxx/patches-3.3/102-cns3xxx_timers.patch +++ /dev/null @@ -1,109 +0,0 @@ ---- a/arch/arm/mach-cns3xxx/core.c -+++ b/arch/arm/mach-cns3xxx/core.c -@@ -115,12 +115,13 @@ static void cns3xxx_timer_set_mode(enum - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: -- reload = pclk * 20 / (3 * HZ) * 0x25000; -+ reload = pclk * 1000000 / HZ; - writel(reload, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); - ctrl |= (1 << 0) | (1 << 2) | (1 << 9); - break; - case CLOCK_EVT_MODE_ONESHOT: - /* period set, and timer enabled in 'next_event' hook */ -+ writel(0, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); - ctrl |= (1 << 2) | (1 << 9); - break; - case CLOCK_EVT_MODE_UNUSED: -@@ -145,11 +146,11 @@ static int cns3xxx_timer_set_next_event( - - static struct clock_event_device cns3xxx_tmr1_clockevent = { - .name = "cns3xxx timer1", -- .shift = 8, -+ .shift = 32, - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = cns3xxx_timer_set_mode, - .set_next_event = cns3xxx_timer_set_next_event, -- .rating = 350, -+ .rating = 300, - .cpumask = cpu_all_mask, - }; - -@@ -191,6 +192,35 @@ static struct irqaction cns3xxx_timer_ir - .handler = cns3xxx_timer_interrupt, - }; - -+static cycle_t cns3xxx_get_cycles(struct clocksource *cs) -+{ -+ u64 val; -+ -+ val = readl(cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); -+ val &= 0xffff; -+ -+ return ((val << 32) | readl(cns3xxx_tmr1 + TIMER_FREERUN_OFFSET)); -+} -+ -+static struct clocksource clocksource_cns3xxx = { -+ .name = "freerun", -+ .rating = 200, -+ .read = cns3xxx_get_cycles, -+ .mask = CLOCKSOURCE_MASK(48), -+ .shift = 16, -+ .flags = CLOCK_SOURCE_IS_CONTINUOUS, -+}; -+ -+static void __init cns3xxx_clocksource_init(void) -+{ -+ /* Reset the FreeRunning counter */ -+ writel((1 << 16), cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); -+ -+ clocksource_cns3xxx.mult = -+ clocksource_khz2mult(100, clocksource_cns3xxx.shift); -+ clocksource_register(&clocksource_cns3xxx); -+} -+ - /* - * Set up the clock source and clock events devices - */ -@@ -208,13 +238,12 @@ static void __init __cns3xxx_timer_init( - /* stop free running timer3 */ - writel(0, cns3xxx_tmr1 + TIMER_FREERUN_CONTROL_OFFSET); - -- /* timer1 */ -- writel(0x5C800, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET); -- writel(0x5C800, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET); -- - writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V1_OFFSET); - writel(0, cns3xxx_tmr1 + TIMER1_MATCH_V2_OFFSET); - -+ val = (cns3xxx_cpu_clock() >> 3) * 1000000 / HZ; -+ writel(val, cns3xxx_tmr1 + TIMER1_COUNTER_OFFSET); -+ - /* mask irq, non-mask timer1 overflow */ - irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); - irq_mask &= ~(1 << 2); -@@ -226,23 +255,9 @@ static void __init __cns3xxx_timer_init( - val |= (1 << 9); - writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); - -- /* timer2 */ -- writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V1_OFFSET); -- writel(0, cns3xxx_tmr1 + TIMER2_MATCH_V2_OFFSET); -- -- /* mask irq */ -- irq_mask = readl(cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); -- irq_mask |= ((1 << 3) | (1 << 4) | (1 << 5)); -- writel(irq_mask, cns3xxx_tmr1 + TIMER1_2_INTERRUPT_MASK_OFFSET); -- -- /* down counter */ -- val = readl(cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); -- val |= (1 << 10); -- writel(val, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET); -- -- /* Make irqs happen for the system timer */ - setup_irq(timer_irq, &cns3xxx_timer_irq); - -+ cns3xxx_clocksource_init(); - cns3xxx_clockevents_init(timer_irq); - } - |