linux-kernel - Re: [PATCH/RFC 2/2] arm/tegra: add timeout to PCIe PLL lock detection loop

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Date:	Wed, 7 Mar 2012 07:38:29 +0100
From:	Thierry Reding <thierry.reding@...onic-design.de>
To:	Dmitry Artamonow <mad_soft@...ox.ru>
Cc:	linux-tegra@...r.kernel.org, Colin Cross <ccross@...roid.com>,
	Olof Johansson <olof@...om.net>,
	Stephen Warren <swarren@...dia.com>,
	Mike Rapoport <mike@...pulab.co.il>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH/RFC 2/2] arm/tegra: add timeout to PCIe PLL lock
 detection loop

* Dmitry Artamonow wrote:
[...]
> diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
[...]
> @@ -639,8 +639,14 @@ static void tegra_pcie_enable_controller(void)
>  	pads_writel(0xfa5cfa5c, 0xc8);
>  
>  	/* Wait for the PLL to lock */
> +	timeout = 2000;

FWIW, the Vibrante kernel uses 300 for the timeout value.

Thierry

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