From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Boris Brezillon <boris.brezillon@bootlin.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH v3 6/6] ARM: configs: at91: unselect PIT
Date: Fri, 23 Feb 2018 18:15:58 +0100 [thread overview]
Message-ID: <20180223171558.7037-7-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20180223171558.7037-1-alexandre.belloni@bootlin.com>
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>
---
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
--
2.16.1
next prev parent reply other threads:[~2018-02-23 17:16 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-23 17:15 [PATCH v3 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 1/6] ARM: at91: add TCB registers definitions Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 2/6] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 3/6] clocksource/drivers: atmel-pit: make option silent Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 4/6] ARM: at91: Implement clocksource selection Alexandre Belloni
2018-02-23 17:15 ` [PATCH v3 5/6] ARM: configs: at91: use new TCB timer driver Alexandre Belloni
2018-02-23 17:15 ` Alexandre Belloni [this message]
2018-03-22 15:33 ` [PATCH v3 0/6] clocksource: rework Atmel " Alexandre Belloni
2018-03-27 10:41 ` Alexander Dahl
2018-03-27 11:30 ` Daniel Lezcano
2018-03-28 10:29 ` Alexander Dahl
2018-03-28 13:03 ` Daniel Lezcano
2018-03-28 14:16 ` Alexandre Belloni
2018-03-28 14:36 ` Daniel Lezcano
2018-03-28 15:31 ` Alexandre Belloni
2018-03-28 15:50 ` Alexandre Belloni
2018-03-29 8:01 ` Alexander Dahl
2018-03-29 10:45 ` Alexandre Belloni
2018-03-29 11:31 ` Alexander Dahl
2018-03-29 11:42 ` Alexandre Belloni
2018-03-29 12:07 ` Daniel Lezcano
2018-03-29 13:02 ` Alexandre Belloni
2018-03-29 15:11 ` Alexander Dahl
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