Messages in this thread | | | Date | Tue, 06 Mar 2012 09:58:50 -0700 | From | Stephen Warren <> | Subject | Re: [PATCH/RFC 2/2] arm/tegra: add timeout to PCIe PLL lock detection loop |
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On 03/06/2012 01:45 AM, Dmitry Artamonow wrote: > Tegra PCIe driver waits for PLL to lock using busy loop. > If PLL fails to lock for some reason, this leads to silent lockup > while booting (as PCIe code is not modular). > > Fix by adding timeout, so if PLL doesn't lock in a couple > of seconds, just PCIe driver fails and machine continues to boot. > > Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
That seems reasonable. So once the mdelay discussion is resolved,
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Any idea why the PLL doesn't lock sometimes?
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