As the PHYTEC phyCORE-i.MX91 [1] is just another variant of the existing
PHYTEC phyCORE-i.MX93 SoM but with i.MX91 SoC populated instead, add it
to the existing board-code "phycore_imx93", and rename that board to
"phycore_imx91_93" to reflect the dual SoCs support. While at it, also
rename and change common files accordingly. This way i.MX91 and i.MX93
SoC variants of the phyCORE SoM share most of the code and documentation
without duplication, while maintaining own device-tree and defconfigs
for each CPU variant.

Supported features:
 - 1GB LPDDR4 RAM
 - Debug UART
 - EEPROM
 - eMMC
 - Ethernet
 - SD-card
 - USB

Product page SoM:
[1] https://www.phytec.eu/en/produkte/system-on-modules/phycore-imx-91-93/

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>

CFG_WITH_SOFTWARE_PRNG=y was added as an OPTEE argument to workaround
some bugs related to TRNG which have been fixed now[1]. Therefore this
patch drops the redundant argument from the documentation.

[1]: https://github.com/OP-TEE/optee_os/commit/e313f4765fd0478bb66985827441411793433773

Signed-off-by: Anshul Dalal <anshuld@ti.com>
Acked-by: Francesco Dolcini <francesco.dolcini@toradex.com> # Toradex Verdin AM62

Add documentation for the PHYTEC phyCORE-AM68x/TDA4x (J721S2 family) SoM.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
Reviewed-by: Wadim Egorov <w.egorov@phytec.de>

Use single make command for compiling blobs and U-Boot.
Update the imx firmware version.

Signed-off-by: Yannic Moog <y.moog@phytec.de>

OP-TEE configs are enabled by default, change the doc to no longer
declare OP-TEE as optional. Also remove CFG_TEE_BENCHMARK as it is no
longer present in optee_os.
Further, phycore-imx8mm and imx8mm-phygate-tauri-l use different build
instructions, so dissolve the common file for building OP-TEE.

Reviewed-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Yannic Moog <y.moog@phytec.de>

Add new imx8mp-libra-fpsc board.
Bootph tags as well as USB device tree nodes are in u-boot.dtsi for now
and will be removed when upstreamed.
The Libra i.MX 8M Plus FPSC is a single board computer. It uses an i.MX
8M Plus FPSC [1] System on Module which utilizes the FPSC standard [2].

[1] https://www.phytec.eu/en/produkte/system-on-modules/phycore-imx-8m-plus-fpsc
[2] https://www.phytec.eu/en/produkte/system-on-modules/fpsc

Signed-off-by: Benjamin Hahn <B.Hahn@phytec.de>
Reviewed-by: Teresa Remmet <t.remmet@phytec.de>
Tested-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Yannic Moog <y.moog@phytec.de>

Provide a common part for our K3 based boards including general details
about environment handling and EFI capsule updates.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>

Add instructions on how to build and package OP-TEE for the
phycore-imx8mm based boards. The build instructions are identical for
phyGATE-Tauri-L and phyBOARD-Polis.
Also fix missig '-' for TF-A build instructions.

Signed-off-by: Yannic Moog <y.moog@phytec.de>

Add documentation for the phyBOARD-Pollux i.MX 8M Plus on OP-TEE
integration.
Also add missing '-' to TF-A build instruction while at it.

Signed-off-by: Yannic Moog <y.moog@phytec.de>