1 files changed, 44 insertions, 0 deletions
diff --git a/debian/patches-rt/0007-ARM-configs-at91-unselect-PIT.patch b/debian/patches-rt/0007-ARM-configs-at91-unselect-PIT.patch
new file mode 100644
index 000000000..a2e5c5d39
--- /dev/null
+++ b/debian/patches-rt/0007-ARM-configs-at91-unselect-PIT.patch
@@ -0,0 +1,44 @@
+From 4e7ea26bf6a9dc935b6db1085488bde47f63f68e Mon Sep 17 00:00:00 2001
+From: Alexandre Belloni <alexandre.belloni@bootlin.com>
+Date: Thu, 13 Sep 2018 13:30:24 +0200
+Subject: [PATCH 007/347] ARM: configs: at91: unselect PIT
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+The PIT is not required anymore to successfully boot and may actually harm
+in case preempt-rt is used because the PIT interrupt is shared.
+Disable it so the TCB clocksource is used.
+
+Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
+Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+---
+ arch/arm/configs/at91_dt_defconfig | 1 +
+ arch/arm/configs/sama5_defconfig   | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/arch/arm/configs/at91_dt_defconfig b/arch/arm/configs/at91_dt_defconfig
+index 09f262e59fef..f4b253bd05ed 100644
+--- a/arch/arm/configs/at91_dt_defconfig
++++ b/arch/arm/configs/at91_dt_defconfig
+@@ -19,6 +19,7 @@ CONFIG_ARCH_MULTI_V5=y
+ CONFIG_ARCH_AT91=y
+ CONFIG_SOC_AT91RM9200=y
+ CONFIG_SOC_AT91SAM9=y
++# CONFIG_ATMEL_CLOCKSOURCE_PIT is not set
+ CONFIG_AEABI=y
+ CONFIG_UACCESS_WITH_MEMCPY=y
+ CONFIG_ZBOOT_ROM_TEXT=0x0
+diff --git a/arch/arm/configs/sama5_defconfig b/arch/arm/configs/sama5_defconfig
+index f2bbc6339ca6..be92871ab155 100644
+--- a/arch/arm/configs/sama5_defconfig
++++ b/arch/arm/configs/sama5_defconfig
+@@ -20,6 +20,7 @@ CONFIG_ARCH_AT91=y
+ CONFIG_SOC_SAMA5D2=y
+ CONFIG_SOC_SAMA5D3=y
+ CONFIG_SOC_SAMA5D4=y
++# CONFIG_ATMEL_CLOCKSOURCE_PIT is not set
+ CONFIG_AEABI=y
+ CONFIG_UACCESS_WITH_MEMCPY=y
+ CONFIG_ZBOOT_ROM_TEXT=0x0
+-- 
+2.36.1
+