diff options
Diffstat (limited to 'target/linux/generic/patches-3.10/992-mpcore_wdt_fix_watchdog_counter_loading.patch')
-rw-r--r-- | target/linux/generic/patches-3.10/992-mpcore_wdt_fix_watchdog_counter_loading.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/target/linux/generic/patches-3.10/992-mpcore_wdt_fix_watchdog_counter_loading.patch b/target/linux/generic/patches-3.10/992-mpcore_wdt_fix_watchdog_counter_loading.patch deleted file mode 100644 index ae81f3f384..0000000000 --- a/target/linux/generic/patches-3.10/992-mpcore_wdt_fix_watchdog_counter_loading.patch +++ /dev/null @@ -1,75 +0,0 @@ -Although the commit "98af057092f8f0dabe63c5df08adc2bbfbddb1d2 - ARM: 6126/1: ARM mpcore_wdt: fix build failure and other fixes" -resolved long standing mpcore_wdt driver build problems, it -introduced an error in the relationship between the MPcore watchdog -timer clock rate and mpcore_margin, "MPcore timer margin in seconds", -such that watchdog timeouts are now arbitrary rather than the number -of seconds specified by mpcore_margin. - -This change restores mpcore_wdt_keepalive() to its equivalent -implementation prior to commit 98af057 such that watchdog timeouts now -occur as specified by mpcore_margin. - -The variable 'mpcore_timer_rate' which caused that build failure was -replaced by 'twd_timer_rate'. Adding exported function to obtain -'twd_timer_rate' value in mpcore_wdt driver. - -MPCORE_WATCHDOG needed to build 'mpcore_wdt' already depends on -HAVE_ARM_TWD needed to build 'smp_twd', so from the point of view of -'mpcore_wdt' driver the exported function will always exist. - -Signed-off-by: Valentine Barshak <vbarshak@mvista.com> -Signed-off-by: Vitaly Kuzmichev <vkuzmichev@mvista.com> ---- - - arch/arm/include/asm/smp_twd.h | 1 + - arch/arm/kernel/smp_twd.c | 7 +++++++ - drivers/watchdog/mpcore_wdt.c | 4 +--- - 3 files changed, 9 insertions(+), 3 deletions(-) - ---- a/arch/arm/include/asm/smp_twd.h -+++ b/arch/arm/include/asm/smp_twd.h -@@ -33,5 +33,6 @@ struct twd_local_timer name __initdata = - }; - - int twd_local_timer_register(struct twd_local_timer *); -+unsigned long twd_timer_get_rate(void); - - #endif ---- a/arch/arm/kernel/smp_twd.c -+++ b/arch/arm/kernel/smp_twd.c -@@ -10,6 +10,7 @@ - */ - #include <linux/init.h> - #include <linux/kernel.h> -+#include <linux/export.h> - #include <linux/clk.h> - #include <linux/delay.h> - #include <linux/device.h> -@@ -361,6 +362,13 @@ int __init twd_local_timer_register(stru - return twd_local_timer_common_register(NULL); - } - -+/* Needed by mpcore_wdt */ -+unsigned long twd_timer_get_rate(void) -+{ -+ return twd_timer_rate; -+} -+EXPORT_SYMBOL_GPL(twd_timer_get_rate); -+ - #ifdef CONFIG_OF - static void __init twd_local_timer_of_register(struct device_node *np) - { ---- a/drivers/watchdog/mpcore_wdt.c -+++ b/drivers/watchdog/mpcore_wdt.c -@@ -101,9 +101,7 @@ static void mpcore_wdt_keepalive(struct - - spin_lock(&wdt_lock); - /* Assume prescale is set to 256 */ -- count = __raw_readl(wdt->base + TWD_WDOG_COUNTER); -- count = (0xFFFFFFFFU - count) * (HZ / 5); -- count = (count / 256) * mpcore_margin; -+ count = (twd_timer_get_rate() / 256) * mpcore_margin; - - /* Reload the counter */ - writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD); |