1. 26 Jun, 2017 2 commits
    • Dimitris Papastamos's avatar
      juno: Invalidate all caches before warm reset to AArch32 state. · 35bd2dda
      Dimitris Papastamos authored
      
      
      On Juno AArch32, the L2 cache may contain garbage after the warm reset
      from AArch64 to AArch32.  This is all fine until the MMU is configured
      and the data caches enabled.  To avoid fetching stale data from the L2
      unified cache, invalidate it before the warm reset to AArch32 state.
      
      Change-Id: I7d27e810692c02c3e83c9f31de67f6bae59a960a
      Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      35bd2dda
    • Dimitris Papastamos's avatar
      juno/aarch32: Restore `SCP_BOOT_CFG_ADDR` to the cold boot value · cc47e1ad
      Dimitris Papastamos authored
      
      
      Before BL2 loads the SCP ram firmware, `SCP_BOOT_CFG_ADDR` specifies
      the primary core.  After the SCP ram firmware has started executing,
      `SCP_BOOT_CFG_ADDR` is modified.  This is not normally an issue but
      the Juno AArch32 boot flow is a special case.  BL1 does a warm reset
      into AArch32 and the core jumps to the `sp_min` entrypoint.  This is
      effectively a `RESET_TO_SP_MIN` configuration.  `sp_min` has to be
      able to determine the primary core and hence we need to restore
      `SCP_BOOT_CFG_ADDR` to the cold boot value before `sp_min` runs.
      
      This magically worked when booting on A53 because the core index was
      zero and it just so happened to match with the new value in
      `SCP_BOOT_CFG_ADDR`.
      
      Change-Id: I105425c680cf6238948625c1d1017b01d3517c01
      Signed-off-by: default avatarDimitris Papastamos <dimitris.papastamos@arm.com>
      cc47e1ad
  2. 20 Jun, 2017 1 commit
  3. 14 Jun, 2017 1 commit
  4. 05 Jun, 2017 1 commit
  5. 23 May, 2017 2 commits
    • Masahiro Yamada's avatar
      FVP,Juno: switch FVP and Juno to use generic TBBR OID header · 232c6b34
      Masahiro Yamada authored
      
      
      The header tbbr_oid.h contains OIDs obtained by ARM Ltd.
      so there is no good reason to use platform_oid.h
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      232c6b34
    • Masahiro Yamada's avatar
      cert: move platform_oid.h to include/tools_share for all platforms · bb41eb7a
      Masahiro Yamada authored
      
      
      Platforms aligned with TBBR are supposed to use their own OIDs, but
      defining the same macros with different OIDs does not provide any
      value (at least technically).
      
      For easier use of TBBR, this commit allows platforms to reuse the OIDs
      obtained by ARM Ltd.  This will be useful for non-ARM vendors that
      do not need their own extension fields in their certificate files.
      
      The OIDs of ARM Ltd. have been moved to include/tools_share/tbbr_oid.h
      
      Platforms can include <tbbr_oid.h> instead of <platform_oid.h> by
      defining USE_TBBR_DEFS as 1.  USE_TBBR_DEFS is 0 by default to keep the
      backward compatibility.
      
      For clarification, I inserted a blank line between headers from the
      include/ directory (#include <...>) and ones from a local directory
      (#include "..." ).
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      bb41eb7a
  6. 16 May, 2017 1 commit
  7. 03 May, 2017 1 commit
  8. 29 Apr, 2017 1 commit
    • Scott Branden's avatar
      Move defines in utils.h to utils_def.h to fix shared header compile issues · 53d9c9c8
      Scott Branden authored
      
      
      utils.h is included in various header files for the defines in it.
      Some of the other header files only contain defines.  This allows the
      header files to be shared between host and target builds for shared defines.
      
      Recently types.h has been included in utils.h as well as some function
      prototypes.
      
      Because of the inclusion of types.h conflicts exist building host tools
      abd these header files now.  To solve this problem,
      move the defines to utils_def.h and have this included by utils.h and
      change header files to only include utils_def.h and not pick up the new
      types.h being introduced.
      
      Fixes ARM-software/tf-issues#461
      Signed-off-by: default avatarScott Branden <scott.branden@broadcom.com>
      
      Remove utils_def.h from utils.h
      
      This patch removes utils_def.h from utils.h as it is not required.
      And also makes a minor change to ensure Juno platform compiles.
      
      Change-Id: I10cf1fb51e44a8fa6dcec02980354eb9ecc9fa29
      53d9c9c8
  9. 24 Apr, 2017 1 commit
    • Soby Mathew's avatar
      CSS: Allow system suspend only via PSCI SYSTEM_SUSPEND API · abd2aba9
      Soby Mathew authored
      
      
      The CSS power management layer previously allowed to suspend system
      power domain level via both PSCI CPU_SUSPEND and PSCI SYSTEM_SUSPEND
      APIs. System suspend via PSCI CPU_SUSPEND was always problematic to
      support because of issues with targeting wakeup interrupts to
      suspended cores before the per-cpu GIC initialization is done. This
      is not the case for PSCI SYSTEM_SUSPEND API because all the other
      cores are expected to be offlined prior to issuing system suspend and
      PSCI CPU_ON explicit calls will be made to power them on. Hence the Juno
      platform used to downgrade the PSCI CPU_SUSPEND request for system
      power domain level to cluster level by overriding the default
      `plat_psci_pm_ops` exported by CSS layer.
      
      Given the direction the new CSS platforms are evolving, it is best to
      limit the system suspend only via PSCI SYSTEM_SUSPEND API for all
      CSS platforms. This patch makes changes to allow system suspend
      only via PSCI SYSTEM_SUSPEND API. The override of `plat_psci_ops`
      for Juno is removed.
      
      Change-Id: Idb30eaad04890dd46074e9e888caeedc50a4b533
      Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      abd2aba9
  10. 20 Apr, 2017 2 commits
    • Yatharth Kochar's avatar
      AArch32: Add SP_MIN support for JUNO · 6f249345
      Yatharth Kochar authored
      
      
      This patch adds support for SP_MIN on JUNO platform.
      The changes include addition of AArch32 assembly files,
      JUNO specific SP_MIN make file and miscellaneous changes
      in ARM platform files to enable support for SP_MIN.
      
      Change-Id: Id1303f422fc9b98b9362c757b1a4225a16fffc0b
      Signed-off-by: default avatarYatharth Kochar <yatharth.kochar@arm.com>
      Signed-off-by: default avatardp-arm <dimitris.papastamos@arm.com>
      6f249345
    • Yatharth Kochar's avatar
      Changes to support execution in AArch32 state for JUNO · 07570d59
      Yatharth Kochar authored
      
      
      Following steps are required to boot JUNO in AArch32 state:
      1> BL1, in AArch64 state, loads BL2.
      2> BL2, in AArch64 state, initializes DDR.
        Loads SP_MIN & BL33 (AArch32 executable)images.
        Calls RUN_IMAGE SMC to go back to BL1.
      3> BL1 writes AArch32 executable opcodes, to load and branch
        at the entrypoint address of SP_MIN, at HI-VECTOR address and
        then request for warm reset in AArch32 state using RMR_EL3.
      
      This patch makes following changes to facilitate above steps:
      * Added assembly function to carry out step 3 above.
      * Added region in TZC that enables Secure access to the
        HI-VECTOR(0xFFFF0000) address space.
      * AArch32 image descriptor is used, in BL2, to load
        SP_MIN and BL33 AArch32 executable images.
      
      A new flag `JUNO_AARCH32_EL3_RUNTIME` is introduced that
      controls above changes. By default this flag is disabled.
      
      NOTE: BL1 and BL2 are not supported in AArch32 state for JUNO.
      
      Change-Id: I091d56a0e6d36663e6d9d2bb53c92c672195d1ec
      Signed-off-by: default avatarYatharth Kochar <yatharth.kochar@arm.com>
      Signed-off-by: default avatardp-arm <dimitris.papastamos@arm.com>
      07570d59
  11. 31 Mar, 2017 2 commits
  12. 30 Mar, 2017 1 commit
  13. 20 Mar, 2017 1 commit
    • Andre Przywara's avatar
      Add workaround for ARM Cortex-A53 erratum 855873 · b75dc0e4
      Andre Przywara authored
      
      
      ARM erratum 855873 applies to all Cortex-A53 CPUs.
      The recommended workaround is to promote "data cache clean"
      instructions to "data cache clean and invalidate" instructions.
      For core revisions of r0p3 and later this can be done by setting a bit
      in the CPUACTLR_EL1 register, so that hardware takes care of the promotion.
      As CPUACTLR_EL1 is both IMPLEMENTATION DEFINED and can be trapped to EL3,
      we set the bit in firmware.
      Also we dump this register upon crashing to provide more debug
      information.
      
      Enable the workaround for the Juno boards.
      
      Change-Id: I3840114291958a406574ab6c49b01a9d9847fec8
      Signed-off-by: default avatarAndre Przywara <andre.przywara@arm.com>
      b75dc0e4
  14. 08 Mar, 2017 1 commit
    • Antonio Nino Diaz's avatar
      Apply workaround for errata 813419 of Cortex-A57 · ccbec91c
      Antonio Nino Diaz authored
      
      
      TLBI instructions for EL3 won't have the desired effect under specific
      circumstances in Cortex-A57 r0p0. The workaround is to execute DSB and
      TLBI twice each time.
      
      Even though this errata is only needed in r0p0, the current errata
      framework is not prepared to apply run-time workarounds. The current one
      is always applied if compiled in, regardless of the CPU or its revision.
      
      This errata has been enabled for Juno.
      
      The `DSB` instruction used when initializing the translation tables has
      been changed to `DSB ISH` as an optimization and to be consistent with
      the barriers used for the workaround.
      
      Change-Id: Ifc1d70b79cb5e0d87e90d88d376a59385667d338
      Signed-off-by: default avatarAntonio Nino Diaz <antonio.ninodiaz@arm.com>
      ccbec91c
  15. 15 Feb, 2017 1 commit
    • dp-arm's avatar
      Juno: Disable SPIDEN in release builds · 09fad498
      dp-arm authored
      
      
      On Juno, the secure privileged invasive debug authentication signal
      (SPIDEN) is controlled by board SCC registers, which by default enable
      SPIDEN.  Disable secure privileged external debug in release builds by
      programming the appropriate Juno SoC registers.
      
      Change-Id: I61045f09a47dc647bbe95e1b7a60e768f5499f49
      Signed-off-by: default avatardp-arm <dimitris.papastamos@arm.com>
      09fad498
  16. 23 Jan, 2017 1 commit
    • Masahiro Yamada's avatar
      Use #ifdef for IMAGE_BL* instead of #if · 3d8256b2
      Masahiro Yamada authored
      
      
      One nasty part of ATF is some of boolean macros are always defined
      as 1 or 0, and the rest of them are only defined under certain
      conditions.
      
      For the former group, "#if FOO" or "#if !FOO" must be used because
      "#ifdef FOO" is always true.  (Options passed by $(call add_define,)
      are the cases.)
      
      For the latter, "#ifdef FOO" or "#ifndef FOO" should be used because
      checking the value of an undefined macro is strange.
      
      Here, IMAGE_BL* is handled by make_helpers/build_macro.mk like
      follows:
      
        $(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
      
        $(OBJ): $(2)
                @echo "  CC      $$<"
                $$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -D$(IMAGE) -c $$< -o $$@
      
      This means, IMAGE_BL* is defined when building the corresponding
      image, but *undefined* for the other images.
      
      So, IMAGE_BL* belongs to the latter group where we should use #ifdef
      or #ifndef.
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      3d8256b2
  17. 14 Dec, 2016 1 commit
  18. 07 Dec, 2016 1 commit
    • Soby Mathew's avatar
      Allow ARM Standard platforms to dynamically define PSCI capability · 5486a965
      Soby Mathew authored
      
      
      The capabilities exposed by the PSCI generic layer depends on the hooks
      populated by the platform in `plat_arm_psci_pm_ops`. Currently ARM
      Standard platforms statically define this structure. However, some
      platforms may want to modify the hooks at runtime before registering
      them with the generic layer.
      
      This patch introduces a new ARM platform layer API
      `plat_arm_psci_override_pm_ops` which allows the platform to probe
      the power controller and modify `plat_arm_psci_pm_ops` if required.
      Consequently, 'plat_arm_psci_pm_ops' is no longer qualified as
      `const` on ARM Standard platforms.
      
      Change-Id: I7dbb44b7bd36c20ec14ded5ee45a96816ca2ab9d
      Signed-off-by: default avatarSoby Mathew <soby.mathew@arm.com>
      5486a965
  19. 05 Dec, 2016 1 commit
    • Jeenu Viswambharan's avatar
      Define and use no_ret macro where no return is expected · a806dad5
      Jeenu Viswambharan authored
      
      
      There are many instances in ARM Trusted Firmware where control is
      transferred to functions from which return isn't expected. Such jumps
      are made using 'bl' instruction to provide the callee with the location
      from which it was jumped to. Additionally, debuggers infer the caller by
      examining where 'lr' register points to. If a 'bl' of the nature
      described above falls at the end of an assembly function, 'lr' will be
      left pointing to a location outside of the function range. This misleads
      the debugger back trace.
      
      This patch defines a 'no_ret' macro to be used when jumping to functions
      from which return isn't expected. The macro ensures to use 'bl'
      instruction for the jump, and also, for debug builds, places a 'nop'
      instruction immediately thereafter (unless instructed otherwise) so as
      to leave 'lr' pointing within the function range.
      
      Change-Id: Ib34c69fc09197cfd57bc06e147cc8252910e01b0
      Co-authored-by: default avatarDouglas Raillard <douglas.raillard@arm.com>
      Signed-off-by: default avatarJeenu Viswambharan <jeenu.viswambharan@arm.com>
      a806dad5
  20. 21 Sep, 2016 1 commit
    • Yatharth Kochar's avatar
      ARM platform changes for new version of image loading · a8aa7fec
      Yatharth Kochar authored
      This patch adds changes in ARM platform code to use new
      version of image loading.
      
      Following are the major changes:
        -Refactor the signatures for bl31_early_platform_setup()
         and arm_bl31_early_platform_setup() function to use
         `void *` instead of `bl31_params_t *`.
        -Introduce `plat_arm_bl2_handle_scp_bl2()` to handle
         loading of SCP_BL2 image from BL2.
        -Remove usage of reserve_mem() function from
         `arm_bl1_early_platform_setup()`
        -Extract BL32 & BL33 entrypoint info, from the link list
         passed by BL2, in `arm_bl31_early_platform_setup()`
        -Provides weak definitions for following platform functions:
           plat_get_bl_image_load_info
           plat_get_next_bl_params
           plat_flush_next_bl_params
           bl2_plat_handle_post_image_load
        -Instantiates a descriptor array for ARM platforms
         describing image and entrypoint information for
         `SCP_BL2`, `BL31`, `BL32` and `BL33` images.
      
      All the above changes are conditionally compiled using the
      `LOAD_IMAGE_V2` flag.
      
      Change-Id: I5e88b9785a3df1a2b2bbbb37d85b8e353ca61049
      a8aa7fec
  21. 15 Sep, 2016 1 commit
    • Jeenu Viswambharan's avatar
      CSS: Implement support for NODE_HW_STATE · 3cc17aae
      Jeenu Viswambharan authored
      This patch implements CSS platform hook to support NODE_HW_STATE PSCI
      API. The platform hook queries SCP to obtain CSS power state. Power
      states returned by SCP are then converted to expected PSCI return codes.
      
      Juno's PSCI operation structure is modified to use the CSS
      implementation.
      
      Change-Id: I4a5edac0e5895dd77b51398cbd78f934831dafc0
      3cc17aae
  22. 19 Aug, 2016 1 commit
    • Sandrine Bailleux's avatar
      Add WFI in platform's unexpected error handlers · 8c9e1af0
      Sandrine Bailleux authored
      This patch adds a WFI instruction in the default implementations of
      plat_error_handler() and plat_panic_handler(). This potentially reduces
      power consumption by allowing the hardware to enter a low-power state.
      The same change has been made to the FVP and Juno platform ports.
      
      Change-Id: Ia4e6e1e5bf1ed42efbba7d0ebbad7be8d5f9f173
      8c9e1af0
  23. 25 Jul, 2016 1 commit
    • Antonio Nino Diaz's avatar
      ARM platforms: Define common image sizes · 0289970d
      Antonio Nino Diaz authored
      Compile option `ARM_BOARD_OPTIMISE_MMAP` has been renamed to
      `ARM_BOARD_OPTIMISE_MEM` because it now applies not only to defines
      related to the translation tables but to the image size as well.
      
      The defines `PLAT_ARM_MAX_BL1_RW_SIZE`, `PLAT_ARM_MAX_BL2_SIZE` and
      `PLAT_ARM_MAX_BL31_SIZE` have been moved to the file board_arm_def.h.
      This way, ARM platforms no longer have to set their own values if
      `ARM_BOARD_OPTIMISE_MEM=0` and they can specify optimized values
      otherwise. The common sizes have been set to the highest values used
      for any of the current build configurations.
      
      This is needed because in some build configurations some images are
      running out of space. This way there is a common set of values known
      to work for all of them and it can be optimized for each particular
      platform if needed.
      
      The space reserved for BL2 when `TRUSTED_BOARD_BOOT=0` has been
      increased. This is needed because when memory optimisations are
      disabled the values for Juno of `PLAT_ARM_MMAP_ENTRIES` and
      `MAX_XLAT_TABLES` are higher. If in this situation the code is
      compiled in debug mode and with "-O0", the code won't fit.
      
      Change-Id: I70a3d8d3a0b0cad1d6b602c01a7ea334776e718e
      0289970d
  24. 18 Jul, 2016 1 commit
    • Soby Mathew's avatar
      Rework type usage in Trusted Firmware · 4c0d0390
      Soby Mathew authored
      This patch reworks type usage in generic code, drivers and ARM platform files
      to make it more portable. The major changes done with respect to
      type usage are as listed below:
      
      * Use uintptr_t for storing address instead of uint64_t or unsigned long.
      * Review usage of unsigned long as it can no longer be assumed to be 64 bit.
      * Use u_register_t for register values whose width varies depending on
        whether AArch64 or AArch32.
      * Use generic C types where-ever possible.
      
      In addition to the above changes, this patch also modifies format specifiers
      in print invocations so that they are AArch64/AArch32 agnostic. Only files
      related to upcoming feature development have been reworked.
      
      Change-Id: I9f8c78347c5a52ba7027ff389791f1dad63ee5f8
      4c0d0390
  25. 16 Jun, 2016 1 commit
    • Soby Mathew's avatar
      Enable PSCI_STAT_COUNT/RESIDENCY for ARM standard platforms · d75f2578
      Soby Mathew authored
      This patch enables optional PSCI functions `PSCI_STAT_COUNT` and
      `PSCI_STAT_RESIDENCY` for ARM standard platforms. The optional platform
      API 'translate_power_state_by_mpidr()' is implemented for the Juno
      platform. 'validate_power_state()' on Juno downgrades PSCI CPU_SUSPEND
      requests for the system power level to the cluster power level.
      Hence, it is not suitable for validating the 'power_state' parameter
      passed in a PSCI_STAT_COUNT/RESIDENCY call.
      
      Change-Id: I9548322676fa468d22912392f2325c2a9f96e4d2
      d75f2578
  26. 14 Apr, 2016 1 commit
    • Gerald Lejeune's avatar
      Dump platform-defined regs in crash reporting · 9ff67fa6
      Gerald Lejeune authored
      
      
      It is up to the platform to implement the new plat_crash_print_regs macro to
      report all relevant platform registers helpful for troubleshooting.
      
      plat_crash_print_regs merges or calls previously defined plat_print_gic_regs
      and plat_print_interconnect_regs macros for each existing platforms.
      
      NOTE: THIS COMMIT REQUIRES ALL PLATFORMS THAT ENABLE THE `CRASH_REPORTING`
      BUILD FLAG TO MIGRATE TO USE THE NEW `plat_crash_print_regs()` MACRO. BY
      DEFAULT, `CRASH_REPORTING` IS ENABLED IN DEBUG BUILDS FOR ALL PLATFORMS.
      
      Fixes: arm-software/tf-issues#373
      Signed-off-by: default avatarGerald Lejeune <gerald.lejeune@st.com>
      9ff67fa6
  27. 31 Mar, 2016 1 commit
  28. 14 Mar, 2016 1 commit
    • Antonio Nino Diaz's avatar
      Remove all non-configurable dead loops · 1c3ea103
      Antonio Nino Diaz authored
      Added a new platform porting function plat_panic_handler, to allow
      platforms to handle unexpected error situations. It must be
      implemented in assembly as it may be called before the C environment
      is initialized. A default implementation is provided, which simply
      spins.
      
      Corrected all dead loops in generic code to call this function
      instead. This includes the dead loop that occurs at the end of the
      call to panic().
      
      All unnecesary wfis from bl32/tsp/aarch64/tsp_exceptions.S have
      been removed.
      
      Change-Id: I67cb85f6112fa8e77bd62f5718efcef4173d8134
      1c3ea103
  29. 22 Feb, 2016 1 commit
    • Vikram Kanigiri's avatar
      Rationalise MMU and Page table related constants on ARM platforms · c64a0448
      Vikram Kanigiri authored
      `board_arm_def.h` contains multiple definitions of
      `PLAT_ARM_MMAP_ENTRIES` and `MAX_XLAT_TABLES` that are optimised for
      memory usage depending upon the chosen build configuration. To ease
      maintenance of these constants, this patch replaces their multiple
      definitions with a single set of definitions that will work on all ARM
      platforms.
      
      Platforms can override the defaults with optimal values by enabling the
      `ARM_BOARD_OPTIMISE_MMAP` build option. An example has been provided in
      the Juno ADP port.
      
      Additionally, `PLAT_ARM_MMAP_ENTRIES` is increased by one to accomodate
      future ARM platforms.
      
      Change-Id: I5ba6490fdd1e118cc9cc2d988ad7e9c38492b6f0
      c64a0448
  30. 19 Feb, 2016 1 commit
    • Soby Mathew's avatar
      Allow multi cluster topology definitions for ARM platforms · 0108047a
      Soby Mathew authored
      The common topology description helper funtions and macros for
      ARM Standard platforms assumed a dual cluster system. This is not
      flexible enough to scale to multi cluster platforms. This patch does
      the following changes for more flexibility in defining topology:
      
      1. The `plat_get_power_domain_tree_desc()` definition is moved from
         `arm_topology.c` to platform specific files, that is `fvp_topology.c`
         and `juno_topology.c`. Similarly the common definition of the porting
         macro `PLATFORM_CORE_COUNT` in `arm_def.h` is moved to platform
         specific `platform_def.h` header.
      
      2. The ARM common layer porting macros which were dual cluster specific
         are now removed and a new macro PLAT_ARM_CLUSTER_COUNT is introduced
         which must be defined by each ARM standard platform.
      
      3. A new mandatory ARM common layer porting API
         `plat_arm_get_cluster_core_count()` is introduced to enable the common
         implementation of `arm_check_mpidr()` to validate MPIDR.
      
      4. For the FVP platforms, a new build option `FVP_NUM_CLUSTERS` has been
         introduced which allows the user to specify the cluster count to be
         used to build the topology tree within Trusted Firmare. This enables
         Trusted Firmware to be built for multi cluster FVP models.
      
      Change-Id: Ie7a2e38e5661fe2fdb2c8fdf5641d2b2614c2b6b
      0108047a
  31. 16 Feb, 2016 1 commit
    • Vikram Kanigiri's avatar
      Rework use of interconnect drivers · 6355f234
      Vikram Kanigiri authored
      ARM Trusted Firmware supports 2 different interconnect peripheral
      drivers: CCI and CCN. ARM platforms are implemented using either of the
      interconnect peripherals.
      
      This patch adds a layer of abstraction to help ARM platform ports to
      choose the right interconnect driver and corresponding platform support.
      This is as described below:
      
      1. A set of ARM common functions have been implemented to initialise an
      interconnect and for entering/exiting a cluster from coherency. These
      functions are prefixed as "plat_arm_interconnect_". Weak definitions of
      these functions have been provided for each type of driver.
      
      2.`plat_print_interconnect_regs` macro used for printing CCI registers is
      moved from a common arm_macros.S to cci_macros.S.
      
      3. The `ARM_CONFIG_HAS_CCI` flag used in `arm_config_flags` structure
      is renamed to `ARM_CONFIG_HAS_INTERCONNECT`.
      
      Change-Id: I02f31184fbf79b784175892d5ce1161b65a0066c
      6355f234
  32. 15 Feb, 2016 2 commits
    • Vikram Kanigiri's avatar
      Perform security setup separately for each ARM platform · a9cc84d7
      Vikram Kanigiri authored
      Prior to this patch, it was assumed that on all ARM platforms the bare
      minimal security setup required is to program TrustZone protection. This
      would always be done by programming the TZC-400 which was assumed to be
      present in all ARM platforms. The weak definition of
      platform_arm_security_setup() in plat/arm/common/arm_security.c
      reflected these assumptions.
      
      In reality, each ARM platform either decides at runtime whether
      TrustZone protection needs to be programmed (e.g. FVPs) or performs
      some security setup in addition to programming TrustZone protection
      (e.g. NIC setup on Juno). As a result, the weak definition of
      plat_arm_security_setup() is always overridden.
      
      When a platform needs to program TrustZone protection and implements the
      TZC-400 peripheral, it uses the arm_tzc_setup() function to do so. It is
      also possible to program TrustZone protection through other peripherals
      that include a TrustZone controller e.g. DMC-500. The programmer's
      interface is slightly different across these various peripherals.
      
      In order to satisfy the above requirements, this patch makes the
      following changes to the way security setup is done on ARM platforms.
      
      1. arm_security.c retains the definition of arm_tzc_setup() and has been
         renamed to arm_tzc400.c. This is to reflect the reliance on the
         TZC-400 peripheral to perform TrustZone programming. The new file is
         not automatically included in all platform ports through
         arm_common.mk. Each platform must include it explicitly in a platform
         specific makefile if needed.
      
         This approach enables introduction of similar library code to program
         TrustZone protection using a different peripheral. This code would be
         used by the subset of ARM platforms that implement this peripheral.
      
      2. Due to #1 above, existing platforms which implements the TZC-400 have been
         updated to include the necessary files for both BL2, BL2U and BL31
         images.
      
      Change-Id: I513c58f7a19fff2e9e9c3b95721592095bcb2735
      a9cc84d7
    • Vikram Kanigiri's avatar
      Support for varying BOM/SCPI protocol base addresses in ARM platforms · 8e083ecd
      Vikram Kanigiri authored
      Current code assumes `SCP_COM_SHARED_MEM_BASE` as the base address
      for BOM/SCPI protocol between AP<->SCP on all CSS platforms. To
      cater for future ARM platforms this is made platform specific.
      Similarly, the bit shifts of `SCP_BOOT_CONFIG_ADDR` are also made
      platform specific.
      
      Change-Id: Ie8866c167abf0229a37b3c72576917f085c142e8
      8e083ecd
  33. 11 Feb, 2016 2 commits
    • Vikram Kanigiri's avatar
      Add support for SSC_VERSION register on CSS platforms · 421295a0
      Vikram Kanigiri authored
      Each ARM Compute Subsystem based platform implements a System Security
      Control (SSC) Registers Unit. The SSC_VERSION register inside it carries
      information to identify the platform. This enables ARM Trusted Firmware
      to compile in support for multiple ARM platforms and choose one at
      runtime. This patch adds macros to enable access to this register.
      Each platform is expected to export its PART_NUMBER separately.
      
      Additionally, it also adds juno part number.
      
      Change-Id: I2b1d5f5b65a9c7b76c6f64480cc7cf0aef019422
      421295a0
    • Vikram Kanigiri's avatar
      Re-factor definition of some macros on ARM platforms · ecf70f7b
      Vikram Kanigiri authored
      This patch moves the definition of some macros used only on
      ARM platforms from common headers to platform specific headers.
      It also forces all ARM standard platforms to have distinct
      definitions (even if they are usually the same).
       1. `PLAT_ARM_TZC_BASE` and `PLAT_ARM_NSTIMER_FRAME_ID` have been
           moved from `css_def.h` to `platform_def.h`.
       2. `MHU_BASE` used in CSS platforms is moved from common css_def.h
          to platform specific header `platform_def.h` on Juno and
          renamed as `PLAT_ARM_MHU_BASE`.
       3. To cater for different sizes of BL images, new macros like
          `PLAT_ARM_MAX_BL31_SIZE` have been created for each BL image. All
          ARM platforms need to define them for each image.
      
      Change-Id: I9255448bddfad734b387922aa9e68d2117338c3f
      ecf70f7b
  34. 15 Dec, 2015 1 commit
    • Dan Handley's avatar
      FWU: Pass client cookie to FWU_SMC_UPDATE_DONE · 1f37b944
      Dan Handley authored
      The current FWU_SMC_UPDATE_DONE implementation incorrectly passes
      an unused framework cookie through to the 1st argument in the
      platform function `bl1_plat_fwu_done`. The intent is to allow
      the SMC caller to pass a cookie through to this function.
      
      This patch fixes FWU_SMC_UPDATE_DONE to pass x1 from the caller
      through to `bl1_plat_fwu_done`. The argument names are updated
      for clarity.
      
      Upstream platforms currently do not use this argument so no
      impact is expected.
      
      Change-Id: I107f4b51eb03e7394f66d9a534ffab1cbc09a9b2
      1f37b944