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From: alexandre.belloni@bootlin.com (Alexandre Belloni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 6/6] ARM: configs: at91: unselect PIT
Date: Wed, 18 Apr 2018 12:51:43 +0200	[thread overview]
Message-ID: <20180418105143.3577-7-alexandre.belloni@bootlin.com> (raw)
In-Reply-To: <20180418105143.3577-1-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
-- 
2.17.0

  parent reply	other threads:[~2018-04-18 10:51 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-18 10:51 [PATCH v4 0/6] clocksource: rework Atmel TCB timer driver Alexandre Belloni
2018-04-18 10:51 ` [PATCH v4 1/6] ARM: at91: add TCB registers definitions Alexandre Belloni
2018-04-26 16:52   ` Sebastian Andrzej Siewior
2018-04-26 17:48     ` Alexandre Belloni
2018-04-18 10:51 ` [PATCH v4 2/6] clocksource/drivers: Add a new driver for the Atmel ARM TC blocks Alexandre Belloni
2018-04-18 10:51 ` [PATCH v4 3/6] clocksource/drivers: atmel-pit: make option silent Alexandre Belloni
2018-04-18 10:51 ` [PATCH v4 4/6] ARM: at91: Implement clocksource selection Alexandre Belloni
2018-04-18 10:51 ` [PATCH v4 5/6] ARM: configs: at91: use new TCB timer driver Alexandre Belloni
2018-04-18 10:51 ` Alexandre Belloni [this message]
2018-04-26 16:46 ` [PATCH v4 0/6] clocksource: rework Atmel " Sebastian Andrzej Siewior
2018-04-26 18:52   ` Alexandre Belloni
2018-05-02 13:34     ` Sebastian Andrzej Siewior
2018-05-02 18:10       ` Alexandre Belloni
2018-05-15 17:26         ` Sebastian Andrzej Siewior

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