Arm Trusted Firmware
230b4d8447
Having RNG_SR_DRDY bit in RNG_SR register does not mean that there are 4 RNG words ready to be read. Add a check on RNG_SR_DRDY between each word reading. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Change-Id: I46af7ca6c0ddbe19540b248365a5016b15b9a707 Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/tf-a/+/308887 Tested-by: Gatien CHEVALLIER <gatien.chevallier@st.com> Reviewed-by: Gatien CHEVALLIER <gatien.chevallier@st.com> Reviewed-by: Yann GAUTIER <yann.gautier@foss.st.com> ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com> ACI: CIBUILD <MDG-smet-aci-builds@list.st.com> Domain-Review: Lionel DEBIEVE <lionel.debieve@foss.st.com> |
||
|---|---|---|
| .husky | ||
| bl1 | ||
| bl2 | ||
| bl2u | ||
| bl31 | ||
| bl32 | ||
| common | ||
| docs | ||
| drivers | ||
| fdts | ||
| include | ||
| lib | ||
| licenses | ||
| make_helpers | ||
| plat | ||
| services | ||
| tools | ||
| .checkpatch.conf | ||
| .commitlintrc.js | ||
| .cz.json | ||
| .editorconfig | ||
| .gitignore | ||
| .gitreview | ||
| .nvmrc | ||
| .versionrc.js | ||
| changelog.yaml | ||
| CONTRIBUTING.md | ||
| dco.txt | ||
| license.rst | ||
| Makefile | ||
| package-lock.json | ||
| package.json | ||
| readme.rst | ||
| SECURITY.md | ||
Trusted Firmware-A ================== Trusted Firmware-A (TF-A) is a reference implementation of secure world software for `Arm A-Profile architectures`_ (Armv8-A and Armv7-A), including an Exception Level 3 (EL3) `Secure Monitor`_. It provides a suitable starting point for productization of secure world boot and runtime firmware, in either the AArch32 or AArch64 execution states. TF-A implements Arm interface standards, including: - `Power State Coordination Interface (PSCI)`_ - `Trusted Board Boot Requirements CLIENT (TBBR-CLIENT)`_ - `SMC Calling Convention`_ - `System Control and Management Interface (SCMI)`_ - `Software Delegated Exception Interface (SDEI)`_ The code is designed to be portable and reusable across hardware platforms and software models that are based on the Armv8-A and Armv7-A architectures. In collaboration with interested parties, we will continue to enhance TF-A with reference implementations of Arm standards to benefit developers working with Armv7-A and Armv8-A TrustZone technology. Users are encouraged to do their own security validation, including penetration testing, on any secure world code derived from TF-A. More Info and Documentation --------------------------- To find out more about Trusted Firmware-A, please `view the full documentation`_ that is available through `trustedfirmware.org`_. -------------- *Copyright (c) 2013-2019, Arm Limited and Contributors. All rights reserved.* .. _Armv7-A and Armv8-A: https://developer.arm.com/products/architecture/a-profile .. _Secure Monitor: http://www.arm.com/products/processors/technologies/trustzone/tee-smc.php .. _Power State Coordination Interface (PSCI): PSCI_ .. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022d/Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf .. _Trusted Board Boot Requirements CLIENT (TBBR-CLIENT): https://developer.arm.com/docs/den0006/latest/trusted-board-boot-requirements-client-tbbr-client-armv8-a .. _SMC Calling Convention: http://infocenter.arm.com/help/topic/com.arm.doc.den0028b/ARM_DEN0028B_SMC_Calling_Convention.pdf .. _System Control and Management Interface (SCMI): SCMI_ .. _SCMI: http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf .. _Software Delegated Exception Interface (SDEI): SDEI_ .. _SDEI: http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf .. _Arm A-Profile architectures: https://developer.arm.com/architectures/cpu-architecture/a-profile .. _view the full documentation: https://www.trustedfirmware.org/docs/tf-a .. _trustedfirmware.org: http://www.trustedfirmware.org