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Diffstat (limited to 'target/linux/ramips/patches-4.9/0005-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch')
-rw-r--r--target/linux/ramips/patches-4.9/0005-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch81
1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-4.9/0005-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch b/target/linux/ramips/patches-4.9/0005-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
new file mode 100644
index 0000000000..cfe84bacca
--- /dev/null
+++ b/target/linux/ramips/patches-4.9/0005-MIPS-use-set_mode-to-enable-disable-the-cevt-r4k-irq.patch
@@ -0,0 +1,81 @@
+From ce3d4a4111a5f7e6b4e74bceae5faa6ce388e8ec Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Sun, 14 Jul 2013 23:08:11 +0200
+Subject: [PATCH 05/53] MIPS: use set_mode() to enable/disable the cevt-r4k
+ irq
+
+Signed-off-by: John Crispin <blogic@openwrt.org>
+---
+ arch/mips/ralink/Kconfig | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/arch/mips/ralink/Kconfig
++++ b/arch/mips/ralink/Kconfig
+@@ -1,11 +1,16 @@
+ if RALINK
+
++config CEVT_SYSTICK_QUIRK
++ bool
++ default n
++
+ config CLKEVT_RT3352
+ bool
+ depends on SOC_RT305X || SOC_MT7620
+ default y
+ select CLKSRC_OF
+ select CLKSRC_MMIO
++ select CEVT_SYSTICK_QUIRK
+
+ config RALINK_ILL_ACC
+ bool
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -15,6 +15,26 @@
+ #include <asm/time.h>
+ #include <asm/cevt-r4k.h>
+
++static int mips_state_oneshot(struct clock_event_device *evt)
++{
++ if (!cp0_timer_irq_installed) {
++ cp0_timer_irq_installed = 1;
++ setup_irq(evt->irq, &c0_compare_irqaction);
++ }
++
++ return 0;
++}
++
++static int mips_state_shutdown(struct clock_event_device *evt)
++{
++ if (cp0_timer_irq_installed) {
++ cp0_timer_irq_installed = 0;
++ remove_irq(evt->irq, &c0_compare_irqaction);
++ }
++
++ return 0;
++}
++
+ static int mips_next_event(unsigned long delta,
+ struct clock_event_device *evt)
+ {
+@@ -281,17 +301,21 @@ int r4k_clockevent_init(void)
+ cd->rating = 300;
+ cd->irq = irq;
+ cd->cpumask = cpumask_of(cpu);
++ cd->set_state_shutdown = mips_state_shutdown;
++ cd->set_state_oneshot = mips_state_oneshot;
+ cd->set_next_event = mips_next_event;
+ cd->event_handler = mips_event_handler;
+
+ clockevents_config_and_register(cd, mips_hpt_frequency, min_delta, 0x7fffffff);
+
++#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;
+ }