Merge tag 'tpm-030822' of https://source.denx.de/u-boot/custodians/u-boot-tpm

EFI_RNG_PROTOCOL with a TPM

doc/usage/cmd/rng.rst

@@ -0,0 +1,26 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+rng command
+===========
+
+Synopsis
+--------
+
+::
+
+    rng [devnum [n]]
+
+Description
+-----------
+
+The *rng* command reads the random number generator(RNG) device and
+prints the random bytes read on the console. A maximum of 64 bytes can
+be read in one invocation of the command.
+
+devnum
+    The RNG device from which the random bytes are to be
+    read. Defaults to 0.
+
+n
+    Number of random bytes to be read and displayed on the
+    console. Default value is 0x40. Max value is 0x40.

doc/usage/index.rst

@@ -56,6 +56,7 @@ Shell commands
    cmd/pstore
    cmd/qfw
    cmd/reset
+   cmd/rng
    cmd/sbi
    cmd/sf
    cmd/scp03