linux-kernel - Re: [PATCH 04/10] ARM: sun6i: Add restart code for the A31

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Message-ID: <20130726123559.66216580@skate>
Date:	Fri, 26 Jul 2013 12:35:59 +0200
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Mike Turquette <mturquette@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	albert.u.boot@...baud.net, Emilio Lopez <emilio@...pez.com.ar>,
	linux-kernel@...r.kernel.org, shuge@...winnertech.com,
	linux-sunxi@...glegroups.com, kevin.z.m.zh@...il.com,
	sunny@...winnertech.com, Olof Johansson <olof@...om.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 04/10] ARM: sun6i: Add restart code for the A31

Dear Maxime Ripard,

On Wed, 24 Jul 2013 00:25:06 +0200, Maxime Ripard wrote:
> The Allwinner A31 has a sligthly different watchdog that requires a
> different restart code.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  arch/arm/mach-sunxi/sunxi.c | 37 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
> 
> diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
> index 11326d9..c18ef3a 100644
> --- a/arch/arm/mach-sunxi/sunxi.c
> +++ b/arch/arm/mach-sunxi/sunxi.c
> @@ -32,6 +32,15 @@
>  #define SUN4I_WATCHDOG_MODE_ENABLE		(1 << 0)
>  #define SUN4I_WATCHDOG_MODE_RESET_ENABLE	(1 << 1)
>  
> +#define SUN6I_WATCHDOG1_IRQ_REG		0x00
> +#define SUN6I_WATCHDOG1_CTRL_REG	0x10
> +#define SUN6I_WATCHDOG1_CTRL_RESTART		(1 << 0)
> +#define SUN6I_WATCHDOG1_CONFIG_REG	0x14
> +#define SUN6I_WATCHDOG1_CONFIG_RESTART		(1 << 0)
> +#define SUN6I_WATCHDOG1_CONFIG_IRQ		(1 << 1)
> +#define SUN6I_WATCHDOG1_MODE_REG	0x18
> +#define SUN6I_WATCHDOG1_MODE_ENABLE		(1 << 0)

Alignment is not nice, and the BIT() macro should be used.

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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