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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 04/11] ARM: at91: watchdog: implement at91_wdt_disable
Date: Wed, 16 Jan 2019 18:45:52 +0100	[thread overview]
Message-ID: <20190116174559.17416-5-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20190116174559.17416-1-a.fatoum@pengutronix.de>

Low level init code might want to disable the watchdog in PBL.
Provide a helper to do so.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 arch/arm/mach-at91/include/mach/at91_wdt.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/mach-at91/include/mach/at91_wdt.h b/arch/arm/mach-at91/include/mach/at91_wdt.h
index 36d37b9d2d64..ecb50edc8c70 100644
--- a/arch/arm/mach-at91/include/mach/at91_wdt.h
+++ b/arch/arm/mach-at91/include/mach/at91_wdt.h
@@ -35,4 +35,20 @@
 #define		AT91_WDT_WDUNF		(1 << 0)		/* Watchdog Underflow */
 #define		AT91_WDT_WDERR		(1 << 1)		/* Watchdog Error */
 
+#ifndef __ASSEMBLY__
+// SPDX-License-Identifier: BSD-1-Clause
+/*
+ * Copyright (c) 2006, Atmel Corporation
+ */
+
+#include <asm-generic/io.h>
+
+static inline void at91_wdt_disable(void __iomem *wdt_base)
+{
+	u32 reg = __raw_readl(wdt_base + AT91_WDT_MR);
+	reg |= AT91_WDT_WDDIS;
+	__raw_writel(reg, wdt_base + AT91_WDT_MR);
+}
+
+#endif /* __ASSEMBLY__ */
 #endif
-- 
2.20.1


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  parent reply	other threads:[~2019-01-16 17:46 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-16 17:45 [PATCH 00/11] ARM: at91: microchip-kz9477-evb: support first stage boot Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 01/11] ARM: at91: clk: prune never-compiled h32mx code Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 02/11] ARM: at91: sama5d3: remove never referenced empty header file Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 03/11] ARM: at91: replace at91sam9_ddrsdr.h with at91bootstrap's Ahmad Fatoum
2019-01-16 18:24   ` Sam Ravnborg
2019-01-17  9:28     ` Ahmad Fatoum
2019-01-16 17:45 ` Ahmad Fatoum [this message]
2019-01-16 17:45 ` [PATCH 05/11] ARM: at91: import lowlevel clock initialization from at91bootstrap Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 06/11] ARM: at91: import early_udelay " Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 07/11] ARM: at91: import low level DDRAMC initialization code " Ahmad Fatoum
2019-01-17  8:11   ` Sascha Hauer
2019-01-17  9:28     ` Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 08/11] ARM: at91: import lowlevel dbgu UART init " Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 09/11] ARM: at91: microchip-ksz9477-evb: reintroduce board code for first stage Ahmad Fatoum
2019-01-17  8:25   ` Sascha Hauer
2019-01-17  9:37     ` Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 10/11] ARM: at91: microchip-ksz9477-evb: import low level init from at91bootstrap Ahmad Fatoum
2019-01-16 17:45 ` [PATCH 11/11] ARM: at91: microchip-ksz9477-evb: add first stage MMC defconfig Ahmad Fatoum
2019-01-16 18:47 ` [PATCH 00/11] ARM: at91: microchip-kz9477-evb: support first stage boot Sam Ravnborg
2019-01-17  9:43   ` Ahmad Fatoum

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