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0d49a41502
Add new fvp specific build time options. Specifically the below: - INITRD_SIZE - INITRD_PATH - INITRD_BASE Change-Id: Ieadf01fce7a0a0a8e9e7582d7b7e371b247207c2 Signed-off-by: Salman Nabi <salman.nabi@arm.com>
61 lines
2.9 KiB
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61 lines
2.9 KiB
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.. _build_options_arm_fvp_platform:
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Arm FVP Platform Specific Build Options
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---------------------------------------
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- ``FVP_CLUSTER_COUNT`` : Configures the cluster count to be used to
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build the topology tree within TF-A. By default TF-A is configured for dual
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cluster topology and this option can be used to override the default value.
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- ``FVP_INTERCONNECT_DRIVER``: Selects the interconnect driver to be built. The
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default interconnect driver depends on the value of ``FVP_CLUSTER_COUNT`` as
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explained in the options below:
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- ``FVP_CCI`` : The CCI driver is selected. This is the default
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if 0 < ``FVP_CLUSTER_COUNT`` <= 2.
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- ``FVP_CCN`` : The CCN driver is selected. This is the default
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if ``FVP_CLUSTER_COUNT`` > 2.
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- ``FVP_MAX_CPUS_PER_CLUSTER``: Sets the maximum number of CPUs implemented in
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a single cluster. This option defaults to 4.
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- ``FVP_MAX_PE_PER_CPU``: Sets the maximum number of PEs implemented on any CPU
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in the system. This option defaults to 1. Note that the build option
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``ARM_PLAT_MT`` doesn't have any effect on FVP platforms.
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- ``FVP_USE_GIC_DRIVER`` : Selects the GIC driver to be built. Options:
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- ``FVP_GICV2`` : The GICv2 only driver is selected
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- ``FVP_GICV3`` : The GICv3 only driver is selected (default option)
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- ``FVP_HW_CONFIG_DTS`` : Specify the path to the DTS file to be compiled
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to DTB and packaged in FIP as the HW_CONFIG. See :ref:`Firmware Design` for
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details on HW_CONFIG. By default, this is initialized to a sensible DTS
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file in ``fdts/`` folder depending on other build options. But some cases,
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like shifted affinity format for MPIDR, cannot be detected at build time
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and this option is needed to specify the appropriate DTS file.
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- ``FVP_HW_CONFIG`` : Specify the path to the HW_CONFIG blob to be packaged in
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FIP. See :ref:`Firmware Design` for details on HW_CONFIG. This option is
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similar to the ``FVP_HW_CONFIG_DTS`` option, but it directly specifies the
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HW_CONFIG blob instead of the DTS file. This option is useful to override
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the default HW_CONFIG selected by the build system.
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- ``FVP_GICR_REGION_PROTECTION``: Mark the redistributor pages of
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inactive/fused CPU cores as read-only. The default value of this option
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is ``0``, which means the redistributor pages of all CPU cores are marked
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as read and write.
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- ``INITRD_SIZE`` : Enable the insertion of initrd properties to the device
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tree blob at build time. Takes an initrd size value in hex format
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- ``INITRD_PATH`` : Enable the insertion of initrd properties to the device tree
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blob at build time. Takes a path to an initrd file. Can be used as an
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alternative to ``INITRD_SIZE``. ``INITRD_SIZE`` takes precedence over
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``INITRD_PATH`` if both values are provided.
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- ``INITRD_BASE`` : Provide the preloaded initrd base address in memory (hex format).
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--------------
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*Copyright (c) 2019-2025, Arm Limited. All rights reserved.*
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