diff options
| -rw-r--r-- | recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch b/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch new file mode 100644 index 0000000..e5dd013 --- /dev/null +++ b/recipes-bsp/at91bootstrap/at91bootstrap-3.5.3/at91bootstrap-3.5.3-disable-rtc-interrupts.patch @@ -0,0 +1,27 @@ +Index: at91bootstrap-3.5.3/board/at91sam9x5ek/at91sam9x5ek.c +=================================================================== +--- at91bootstrap-3.5.3.orig/board/at91sam9x5ek/at91sam9x5ek.c 2015-12-21 15:42:05.498892917 -0600 ++++ at91bootstrap-3.5.3/board/at91sam9x5ek/at91sam9x5ek.c 2015-12-22 14:53:59.151521592 -0600 +@@ -46,6 +46,9 @@ + + #include "onewire_info.h" + ++#define RTC_SCCR 0x1C ++#define RTC_IDR 0x24 ++ + #ifdef CONFIG_USER_HW_INIT + extern void hw_init_hook(void); + #endif +@@ -207,6 +210,12 @@ + #ifdef CONFIG_USER_HW_INIT + hw_init_hook(); + #endif ++ ++ /* disable all RTC interrupts and clear status register. ++ * Prevents possible Linux lockup due to unexpected RTC interrupt ++ */ ++ writel(0xFF, RTC_IDR + AT91C_BASE_RTC); ++ writel(0xFF, RTC_SCCR + AT91C_BASE_RTC); + } + #endif /* #ifdef CONFIG_HW_INIT */ + |