tree f19575c65687912e3aac1a156f4f77a94701894d
parent c0694f7739cf152093bd892715b22024e852cce3
author Patrick Delaunay <patrick.delaunay@foss.st.com> 1648556483 +0200
committer Tom Rini <trini@konsulko.com> 1649687284 -0400

rng: add OP-TEE based Random Number Generator

Add driver for OP-TEE based Random Number Generator on ARM SoCs
where hardware entropy sources are not accessible to normal world
and the RNG service is provided by a HWRNG Trusted Application (TA).

This driver is based on the linux driver: char/hw_random/optee-rng.c

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>