Varun Wadekar dd4f0885a0 Tegra: delay_timer: support for physical secure timer ... This patch modifies the delay timer driver to switch to the ARM secure physical timer instead of using Tegra's on-chip uS timer. The secure timer is not accessible to the NS world and so eliminates an important attack vector, where the Tegra timer source gets switched off from the NS world leading to a DoS attack for the trusted world. This timer is shared with the S-EL1 layer for now, but later patches will mark it as exclusive to the EL3 exception mode. Change-Id: I2c00f8cb4c48b25578971c626c314603906ad7cc Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>		2020-02-20 09:25:45 -08:00
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aarch32	Changes to support updated register usage in SMCCC v1.2	2019-11-26 12:56:30 -06:00
aarch64	Tegra: delay_timer: support for physical secure timer	2020-02-20 09:25:45 -08:00