From cba8dbc5b783122dc30e594e32d73084b048a7c3 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Wed, 10 Apr 2013 16:07:50 +0000 Subject: [PATCH] kernel: calibrate the TWD timer even when booting with only one CPU, it is used for the watchdog timer base Fixes booting on single-core CNS3xxx devices Signed-off-by: Felix Fietkau SVN-Revision: 36308 --- ...995-mpcore_twd_calibrate_single_core.patch | 23 +++++++++++++++++++ ...995-mpcore_twd_calibrate_single_core.patch | 23 +++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 target/linux/generic/patches-3.8/995-mpcore_twd_calibrate_single_core.patch create mode 100644 target/linux/generic/patches-3.9/995-mpcore_twd_calibrate_single_core.patch diff --git a/target/linux/generic/patches-3.8/995-mpcore_twd_calibrate_single_core.patch b/target/linux/generic/patches-3.8/995-mpcore_twd_calibrate_single_core.patch new file mode 100644 index 0000000000..bd5cf52324 --- /dev/null +++ b/target/linux/generic/patches-3.8/995-mpcore_twd_calibrate_single_core.patch @@ -0,0 +1,23 @@ +--- a/arch/arm/kernel/smp_twd.c ++++ b/arch/arm/kernel/smp_twd.c +@@ -189,7 +189,7 @@ core_initcall(twd_cpufreq_init); + + #endif + +-static void __cpuinit twd_calibrate_rate(void) ++static int twd_calibrate_rate(void) + { + unsigned long count; + u64 waitjiffies; +@@ -226,8 +226,11 @@ static void __cpuinit twd_calibrate_rate + printk("%lu.%02luMHz.\n", twd_timer_rate / 1000000, + (twd_timer_rate / 10000) % 100); + } ++ return 0; + } + ++device_initcall(twd_calibrate_rate); ++ + static irqreturn_t twd_handler(int irq, void *dev_id) + { + struct clock_event_device *evt = *(struct clock_event_device **)dev_id; diff --git a/target/linux/generic/patches-3.9/995-mpcore_twd_calibrate_single_core.patch b/target/linux/generic/patches-3.9/995-mpcore_twd_calibrate_single_core.patch new file mode 100644 index 0000000000..447aaca5bc --- /dev/null +++ b/target/linux/generic/patches-3.9/995-mpcore_twd_calibrate_single_core.patch @@ -0,0 +1,23 @@ +--- a/arch/arm/kernel/smp_twd.c ++++ b/arch/arm/kernel/smp_twd.c +@@ -186,7 +186,7 @@ core_initcall(twd_cpufreq_init); + + #endif + +-static void __cpuinit twd_calibrate_rate(void) ++static int twd_calibrate_rate(void) + { + unsigned long count; + u64 waitjiffies; +@@ -223,8 +223,11 @@ static void __cpuinit twd_calibrate_rate + printk("%lu.%02luMHz.\n", twd_timer_rate / 1000000, + (twd_timer_rate / 10000) % 100); + } ++ return 0; + } + ++device_initcall(twd_calibrate_rate); ++ + static irqreturn_t twd_handler(int irq, void *dev_id) + { + struct clock_event_device *evt = *(struct clock_event_device **)dev_id; -- 2.30.2