arm/tegra: add timeout to PCIe PLL lock detection loop

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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>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

...

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Dmitry Artamonow 2012-03-06 12:45:43 +04:00 • committed by Olof Johansson

parent 448b98047c

commit 795d5fd4b8

1 changed files with 11 additions and 3 deletions

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arch/arm/mach-tegra/pcie.c

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