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>,
Alexander Dahl <ada@thorsis.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH v5 6/6] ARM: configs: at91: unselect PIT
Date: Tue, 19 Jun 2018 23:19:29 +0200 [thread overview]
Message-ID: <20180619211929.22908-7-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20180619211929.22908-1-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
--
2.17.1
prev parent reply other threads:[~2018-06-19 21:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 21:19 [PATCH v5 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-06-19 21:19 ` [PATCH v5 1/6] ARM: at91: add TCB registers definitions Alexandre Belloni
2018-06-28 15:15 ` Daniel Lezcano
2018-06-28 18:34 ` Alexandre Belloni
2018-06-28 19:55 ` Daniel Lezcano
2018-06-19 21:19 ` [PATCH v5 2/6] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2018-06-20 9:03 ` Thomas Gleixner
2018-06-20 9:46 ` Alexandre Belloni
2018-06-20 10:07 ` Thomas Gleixner
2018-06-20 10:32 ` Alexandre Belloni
2018-06-20 10:58 ` Thomas Gleixner
2018-06-20 11:18 ` Alexandre Belloni
2018-06-20 11:55 ` Thomas Gleixner
2018-06-28 16:24 ` Daniel Lezcano
2018-07-06 15:18 ` Alexandre Belloni
2018-06-19 21:19 ` [PATCH v5 3/6] clocksource/drivers: atmel-pit: make option silent Alexandre Belloni
2018-06-19 21:19 ` [PATCH v5 4/6] ARM: at91: Implement clocksource selection Alexandre Belloni
2018-06-19 21:19 ` [PATCH v5 5/6] ARM: configs: at91: use new TCB timer driver Alexandre Belloni
2018-06-19 21:19 ` Alexandre Belloni [this message]
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