arm-trusted-firmware

History

Jorge Ramirez-Ortiz 7e532c4bf7 rcar-gen3: initial commit for the rcar-gen3 boards Reference code: ============== rar_gen3: IPL and Secure Monitor Rev1.0.22 https://github.com/renesas-rcar/arm-trusted-firmware [rcar_gen3] Author: Takuya Sakata <takuya.sakata.wz@bp.renesas.com> Date: Thu Aug 30 21:26:41 2018 +0900 Update IPL and Secure Monitor Rev1.0.22 General Information: =================== This port has been tested on the Salvator-X Soc_id r8a7795 revision ES1.1 (uses an SPD). Build Tested: ------------- ATFW_OPT="LSI=H3 RCAR_DRAM_SPLIT=1 RCAR_LOSSY_ENABLE=1" MBEDTLS_DIR=$mbedtls $ make clean bl2 bl31 rcar PLAT=rcar ${ATFW_OPT} SPD=opteed Other dependencies: ------------------ * mbed_tls: git@github.com:ARMmbed/mbedtls.git [devel] Merge: 68dbc94 f34a4c1 Author: Simon Butcher <simon.butcher@arm.com> Date: Thu Aug 30 00:57:28 2018 +0100 * optee_os: https://github.com/BayLibre/optee_os Until it gets merged into OP-TEE, the port requires Renesas' Trusted Environment with a modification to support power management. Author: Jorge Ramirez-Ortiz <jramirez@baylibre.com> Date: Thu Aug 30 16:49:49 2018 +0200 plat-rcar: cpu-suspend: handle the power level Signed-off-by: Jorge Ramirez-Ortiz <jramirez@baylibre.com> * u-boot: The port has beent tested using mainline uboot. Author: Fabio Estevam <festevam@gmail.com> Date: Tue Sep 4 10:23:12 2018 -0300 linux: The port has beent tested using mainline kernel. Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Sep 16 11:52:37 2018 -0700 Linux 4.19-rc4 Overview --------- BOOTROM starts the cpu at EL3; In this port BL2 will therefore be entered at this exception level (the Renesas' ATF reference tree [1] resets into EL1 before entering BL2 - see its bl2.ld.S) BL2 initializes DDR (and i2c to talk to the PMIC on some platforms) before determining the boot reason (cold or warm). During suspend all CPUs are switched off and the DDR is put in backup mode (some kind of self-refresh mode). This means that BL2 is always entered in a cold boot scenario. Once BL2 boots, it determines the boot reason, writes it to shared memory (BOOT_KIND_BASE) together with the BL31 parameters (PARAMS_BASE) and jumps to BL31. To all effects, BL31 is as if it is being entered in reset mode since it still needs to initialize the rest of the cores; this is the reason behind using direct shared memory access to BOOT_KIND_BASE and PARAMS_BASE instead of using registers to get to those locations (see el3_common_macros.S and bl31_entrypoint.S for the RESET_TO_BL31 use case). Depending on the boot reason BL31 initializes the rest of the cores: in case of suspend, it uses a MBOX memory region to recover the program counters. [1] https://github.com/renesas-rcar/arm-trusted-firmware Tests ----- cpuidle ------- enable kernel's cpuidle arm_idle driver and boot * system suspend -------------- $ cat suspend.sh #!/bin/bash i2cset -f -y 7 0x30 0x20 0x0F read -p "Switch off SW23 and press return " foo echo mem > /sys/power/state * cpu hotplug: ------------ $ cat offline.sh #!/bin/bash nbr=$1 echo 0 > /sys/devices/system/cpu/cpu$nbr/online printf "ONLINE: " && cat /sys/devices/system/cpu/online printf "OFFLINE: " && cat /sys/devices/system/cpu/offline $ cat online.sh #!/bin/bash nbr=$1 echo 1 > /sys/devices/system/cpu/cpu$nbr/online printf "ONLINE: " && cat /sys/devices/system/cpu/online printf "OFFLINE: " && cat /sys/devices/system/cpu/offline Signed-off-by: ldts <jramirez@baylibre.com>		6 years ago
..
diagrams	Add Secure Partition Manager (SPM) design document	7 years ago
marvell	marvell: Move BLE from external repo to the platform folder	6 years ago
plantuml	SDEI: Make dispatches synchronous	6 years ago
plat	rcar-gen3: initial commit for the rcar-gen3 boards	6 years ago
spd	Update Arm TF references to TF-A	7 years ago
arm-sip-service.rst	Update Arm TF references to TF-A	7 years ago
auth-framework.rst	Update Arm TF references to TF-A	7 years ago
change-log.rst	Fix typos in changelog	6 years ago
cpu-specific-build-macros.rst	Fix broken links in documentation	6 years ago
firmware-design.rst	Introduce RECLAIM_INIT_CODE build flag	6 years ago
firmware-update.rst	Update Arm TF references to TF-A	7 years ago
interrupt-framework-design.rst	Update Arm TF references to TF-A	7 years ago
platform-compatibility-policy.rst	docs: Fixup filename and links to compatibility policy	6 years ago
platform-interrupt-controller-API.rst	Update Arm TF references to TF-A	7 years ago
porting-guide.rst	docs: Fixup filename and links to compatibility policy	6 years ago
psci-lib-integration-guide.rst	libc: Move tf_printf and tf_snprintf to libc	6 years ago
psci-pd-tree.rst	Fix typo in documentation page title	6 years ago
reset-design.rst	Update Arm TF references to TF-A	7 years ago
rt-svc-writers-guide.rst	Rename 'smcc' to 'smccc'	7 years ago
sdei.rst	SDEI: Make dispatches synchronous	6 years ago
secure-partition-manager-design.rst	plat/arm: SPM: Force BL31 to DRAM when SPM is used	7 years ago
trusted-board-boot.rst	Update Arm TF references to TF-A	7 years ago
user-guide.rst	docs: Clarify usage of LOG_LEVEL	6 years ago
xlat-tables-lib-v2-design.rst	xlat v2: Update documentation	6 years ago