From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Arnd Bergmann <arnd@arndb.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, linux-pwm@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: [PATCH 10/12] ARM: configs: at91: unselect PIT
Date: Wed, 3 Apr 2019 16:11:18 +0200 [thread overview]
Message-ID: <20190403141120.32754-11-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20190403141120.32754-1-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 e4b1be66b3f5..c8876d0ca41a 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 b0026f73083d..10ebc9481f72 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
--
2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-pwm@vger.kernel.org,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Arnd Bergmann <arnd@arndb.de>, Alexander Dahl <ada@thorsis.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 10/12] ARM: configs: at91: unselect PIT
Date: Wed, 3 Apr 2019 16:11:18 +0200 [thread overview]
Message-ID: <20190403141120.32754-11-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20190403141120.32754-1-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 e4b1be66b3f5..c8876d0ca41a 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 b0026f73083d..10ebc9481f72 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
--
2.20.1
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next prev parent reply other threads:[~2019-04-03 14:12 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 14:11 [PATCH 00/12] clocksource: improve Atmel TCB timer driver Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 01/12] ARM: at91: move SoC specific definitions to SoC folder Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:36 ` Thierry Reding
2019-04-03 14:36 ` Thierry Reding
2019-04-03 17:36 ` Arnd Bergmann
2019-04-03 17:36 ` Arnd Bergmann
2019-04-03 14:11 ` [PATCH 02/12] misc: atmel_tclib: drop AVR32 support Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 03/12] misc: atmel_tclib: move definitions to header file Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-11 15:00 ` Daniel Lezcano
2019-04-11 15:00 ` Daniel Lezcano
2019-04-15 14:22 ` Alexandre Belloni
2019-04-15 14:22 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 04/12] clocksource/drivers/tcb_clksrc: stop depending on atmel_tclib Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-11 16:19 ` Daniel Lezcano
2019-04-11 16:19 ` Daniel Lezcano
2019-04-15 14:14 ` Alexandre Belloni
2019-04-15 14:14 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 05/12] clocksource/drivers/tcb_clksrc: Use tcb as sched_clock Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 06/12] ARM: at91: Implement clocksource selection Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 07/12] clocksource/drivers/tcb_clksrc: move Kconfig option Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 08/12] clocksource/drivers/timer-atmel-pit: rework " Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` [PATCH 09/12] clocksource/drivers/tcb_clksrc: Rename the file for consistency Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni [this message]
2019-04-03 14:11 ` [PATCH 10/12] ARM: configs: at91: unselect PIT Alexandre Belloni
2019-04-03 14:11 ` [PATCH 11/12] misc: atmel_tclib: do not probe already used TCBs Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-25 20:18 ` Greg Kroah-Hartman
2019-04-25 20:18 ` Greg Kroah-Hartman
2019-04-03 14:11 ` [PATCH 12/12] clocksource/drivers/timer-atmel-tcb: Use ARRAY_SIZE instead of hardcoded size Alexandre Belloni
2019-04-03 14:11 ` Alexandre Belloni
2019-04-11 16:34 ` [PATCH 00/12] clocksource: improve Atmel TCB timer driver Daniel Lezcano
2019-04-11 16:34 ` Daniel Lezcano
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