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SubjectRe: [PATCH/RFC 2/2] arm/tegra: add timeout to PCIe PLL lock detection loop
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 <>

That seems reasonable. So once the mdelay discussion is resolved,

Acked-by: Stephen Warren <>

Any idea why the PLL doesn't lock sometimes?

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