1. 29 Jan, 2019 1 commit
  2. 08 Jan, 2019 4 commits
  3. 04 Jan, 2019 1 commit
    • Antonio Nino Diaz's avatar
      Sanitise includes across codebase · 09d40e0e
      Antonio Nino Diaz authored
      Enforce full include path for includes. Deprecate old paths.
      
      The following folders inside include/lib have been left unchanged:
      
      - include/lib/cpus/${ARCH}
      - include/lib/el3_runtime/${ARCH}
      
      The reason for this change is that having a global namespace for
      includes isn't a good idea. It defeats one of the advantages of having
      folders and it introduces problems that are sometimes subtle (because
      you may not know the header you are actually including if there are two
      of them).
      
      For example, this patch had to be created because two headers were
      called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform
      to avoid collision."). More recently, this patch has had similar
      problems: 46f9b2c3 ("drivers: add tzc380 support").
      
      This problem was introduced in commit 4ecca339
      
       ("Move include and
      source files to logical locations"). At that time, there weren't too
      many headers so it wasn't a real issue. However, time has shown that
      this creates problems.
      
      Platforms that want to preserve the way they include headers may add the
      removed paths to PLAT_INCLUDES, but this is discouraged.
      
      Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      09d40e0e
  4. 08 Nov, 2018 1 commit
    • Antonio Nino Diaz's avatar
      Standardise header guards across codebase · c3cf06f1
      Antonio Nino Diaz authored
      
      
      All identifiers, regardless of use, that start with two underscores are
      reserved. This means they can't be used in header guards.
      
      The style that this project is now to use the full name of the file in
      capital letters followed by 'H'. For example, for a file called
      "uart_example.h", the header guard is UART_EXAMPLE_H.
      
      The exceptions are files that are imported from other projects:
      
      - CryptoCell driver
      - dt-bindings folders
      - zlib headers
      
      Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      c3cf06f1
  5. 17 Oct, 2018 1 commit
    • Jorge Ramirez-Ortiz's avatar
      rcar-gen3: initial commit for the rcar-gen3 boards · 7e532c4b
      Jorge Ramirez-Ortiz authored
      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: default avatarJorge 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: default avatarldts <jramirez@baylibre.com>
      7e532c4b