ralink: add 3.18 support

keep default as 3.14, mt7621 gic need to be ported to 3.18

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 44349

1 files changed, 80 insertions, 0 deletions

diff --git a/target/linux/ramips/patches-3.18/0017-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch b/target/linux/ramips/patches-3.18/0017-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
new file mode 100644
index 0000000000..4e3d962e86
--- /dev/null
+++ b/target/linux/ramips/patches-3.18/0017-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
@@ -0,0 +1,80 @@
+From f8da5caf65926d44581d4e7914b28ceab3d28a7c Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 14 Jul 2013 23:08:11 +0200
+Subject: [PATCH 17/57] MIPS: use set_mode() to enable/disable the cevt-r4k
+ irq
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/kernel/cevt-r4k.c |   37 +++++++++++++++++++++++++++++++------
+ 1 file changed, 31 insertions(+), 6 deletions(-)
+
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -29,12 +29,6 @@ static int mips_next_event(unsigned long
+ 	return res;
+ }
+ 
+-void mips_set_clock_mode(enum clock_event_mode mode,
+-				struct clock_event_device *evt)
+-{
+-	/* Nothing to do ...  */
+-}
+-
+ DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
+ int cp0_timer_irq_installed;
+ 
+@@ -75,9 +69,38 @@ struct irqaction c0_compare_irqaction =
+ 	.name = "timer",
+ };
+ 
++void mips_set_clock_mode(enum clock_event_mode mode,
++				struct clock_event_device *evt)
++{
++#ifdef CONFIG_CEVT_SYSTICK_QUIRK
++	switch (mode) {
++	case CLOCK_EVT_MODE_ONESHOT:
++		if (cp0_timer_irq_installed)
++			break;
++
++		cp0_timer_irq_installed = 1;
++
++		setup_irq(evt->irq, &c0_compare_irqaction);
++		break;
++
++	case CLOCK_EVT_MODE_SHUTDOWN:
++		if (!cp0_timer_irq_installed)
++			break;
++
++		cp0_timer_irq_installed = 0;
++		free_irq(evt->irq, &c0_compare_irqaction);
++		break;
++
++	default:
++		pr_err("Unhandeled mips clock_mode\n");
++		break;
++	}
++#endif
++}
+ 
+ void mips_event_handler(struct clock_event_device *dev)
+ {
++
+ }
+ 
+ /*
+@@ -198,12 +221,14 @@ int r4k_clockevent_init(void)
+ 
+ 	clockevents_register_device(cd);
+ 
++#ifndef CONFIG_CEVT_SYSTICK_QUIRK
+ 	if (cp0_timer_irq_installed)
+ 		return 0;
+ 
+ 	cp0_timer_irq_installed = 1;
+ 
+ 	setup_irq(irq, &c0_compare_irqaction);
++#endif
+ 
+ 	return 0;
+ }