cns3xx: remove support for kernel 4.14

This target has been on kernel 4.19 for nine months now [1], and
has had testing support for even longer [2].
This should be long enough to drop support for kernel 4.14.

[1] 545bfbc3a922 ("cns3xxx: switch to kernel 4.19")
[2] c6bebe1a9496 ("cns3xxx: add support for kernel 4.19")

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 105 deletions

diff --git a/target/linux/cns3xxx/patches-4.14/090-timers.patch b/target/linux/cns3xxx/patches-4.14/090-timers.patch
deleted file mode 100644
index b3810f8c9b..0000000000
--- a/target/linux/cns3xxx/patches-4.14/090-timers.patch
+++ /dev/null
@@ -1,105 +0,0 @@
---- a/arch/arm/mach-cns3xxx/core.c
-+++ b/arch/arm/mach-cns3xxx/core.c
-@@ -138,6 +138,7 @@ static int cns3xxx_set_oneshot(struct cl
- 
- 	/* period set, and timer enabled in 'next_event' hook */
- 	ctrl |= (1 << 2) | (1 << 9);
-+	writel(0, cns3xxx_tmr1 + TIMER1_AUTO_RELOAD_OFFSET);
- 	writel(ctrl, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
- 	return 0;
- }
-@@ -148,7 +149,7 @@ static int cns3xxx_set_periodic(struct c
- 	int pclk = cns3xxx_cpu_clock() / 8;
- 	int reload;
- 
--	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);
- 	writel(ctrl, cns3xxx_tmr1 + TIMER1_2_CONTROL_OFFSET);
-@@ -175,8 +176,8 @@ static struct clock_event_device cns3xxx
- 	.set_state_oneshot	= cns3xxx_set_oneshot,
- 	.tick_resume		= cns3xxx_shutdown,
- 	.set_next_event		= cns3xxx_timer_set_next_event,
--	.rating			= 350,
--	.cpumask		= cpu_all_mask,
-+	.rating			= 300,
-+	.cpumask		= cpu_possible_mask,
- };
- 
- static void __init cns3xxx_clockevents_init(unsigned int timer_irq)
-@@ -220,6 +221,32 @@ static void __init cns3xxx_init_twd(void
- 	twd_local_timer_register(&cns3xx_twd_local_timer);
- }
- 
-+static u64 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),
-+	.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_register_khz(&clocksource_cns3xxx, 100);
-+}
-+
- /*
-  * Set up the clock source and clock events devices
-  */
-@@ -237,13 +264,12 @@ 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);
-@@ -255,23 +281,9 @@ 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);
- 	cns3xxx_init_twd();
- }