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| H A D | tzc380.c | 552e0c1cb781402d71a971c2c5f1fe904b99bee5 Mon Jul 26 09:35:19 UTC 2021 Clement Faure <clement.faure@nxp.com> drivers: tzc380: fix the lockdown range register value
This register controls the range of regions that are locked down.
The number of regions to lockdown are defined in [1]:
lockdown_range[3:0] and its value goes from b0000 to b1111.
If the goal of tzc_regions_lockdown() is to lock all regions supported
by the platforms, then the value of lockdown_range[3:0] should be equal
to no_of_regions[3:0] of the configuration register [2].
Currently, tzc.num_regions is used to defined the lockdown range which
is incorrect because it has been incremented during initialization.
Fix the issue by decrementing tzc.num_regions before the configuration
of lockdown_range[3:0].
Link: [1] https://developer.arm.com/documentation/ddi0431/c/programmers-model/register-descriptions/lockdown-range-register
Link: [2] https://developer.arm.com/documentation/ddi0431/c/programmers-model/register-descriptions/configuration-register
Signed-off-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
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