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The configuration files for the MC firmware binary are distributed through a separate repository on GitHub, and need a different package. They are licensed differently than the firmware itself, and unlike the firmware, they are customizable. There are two ways for a board to use this package - similar to qoriq-rcw. If it is an NXP reference board or if the example files otherwise work fine with it, it is recommended to set the _INTREE variables to select a pre-existing DPL and DPC. Otherwise, if it is a custom board, the best solution is to just provide the DPL and DPC dts files in board/, and set the _CUSTOM_PATH variables to point to them. There are also two ways to deploy to the target. Traditionally in NXP BSPs, U-Boot loads the MC firmware, DPL and DPC from given offsets in the storage medium (outside of the filesystem). But this is not hardcoded and it doesn't have to be the case - the mcinitcmd U-Boot environment variable is freely customizable. What can also be done, and is done for the LX2160A-RDB, is to deploy multiple DPL and DPC files (all the files available for a board) to a folder of the rootfs, and just have two symlinks: dpl.dtb and dpc.dtb which point to the currently active files. This makes easier the processes of upgrading, downgrading and keeping multiple file versions. Nonetheless, the "traditional" method of deploying to the target is also possible. The selected DPL and DPC files are deployed to the "images" folder and are freely usable with genimage or other post-image scripts. Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
77 lines
2.9 KiB
Plaintext
77 lines
2.9 KiB
Plaintext
config BR2_PACKAGE_QORIQ_MC_UTILS
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bool "qoriq-mc-utils"
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select BR2_PACKAGE_HOST_DTC
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help
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The Management Complex (MC) is a key component of the
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networking subsystem named DPAA2 (Data Path Acceleration
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Architecture, second version) in some NXP Layerscape SoCs.
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The MC firmware is configured through two distinct files
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named DPL and DPC, which are customizable by the end user.
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Example configuration files for NXP reference boards are
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distributed through this package, and are frequently patched
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to produce the configuration required in other scenarios.
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https://github.com/nxp-qoriq/mc-utils
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# sign in required
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https://www.nxp.com/webapp/Download?colCode=DPAA2UM
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if BR2_PACKAGE_QORIQ_MC_UTILS
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config BR2_PACKAGE_QORIQ_MC_UTILS_DPC_CUSTOM_PATH
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string "Data Path Configuration (DPC) custom file paths"
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help
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The DPC file contains the settings defining the behavior
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of the MC firmware. Its structure follows the device
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tree syntax and is compiled to a device tree blob.
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This option defines a space-separated list of device
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tree source (DTS) file names, specified without
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the trailing .dts. It should be used when the NXP
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qoriq-mc-utils repository does not contain an adequate
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DPC for the platform, and is preferable to patching
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the package.
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config BR2_PACKAGE_QORIQ_MC_UTILS_DPC_INTREE
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string "Data Path Configuration (DPC) in-tree files"
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help
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This option defines a space-separated list of device
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tree source (DTS) files relative to the "config/"
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folder of the qoriq-mc-utils repository, specified
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without the trailing .dts. It should be used when NXP
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provides an adequate DPC for the platform.
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config BR2_PACKAGE_QORIQ_MC_UTILS_DPL_CUSTOM_PATH
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string "Data Path Layout (DPL) custom file paths"
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help
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The DPL file contains a description of the initial
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networking objects created by the MC firmware when it
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boots. Its structure follows the device tree syntax
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and is compiled to a device tree blob.
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This option defines a space-separated list of device
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tree source (DTS) files, specified without the
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trailing .dts. It should be used when the NXP
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qoriq-mc-utils repository does not contain an
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adequate DPL for the platform, and is preferable to
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patching the package.
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config BR2_PACKAGE_QORIQ_MC_UTILS_DPL_INTREE
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string "Data Path Layout (DPL) in-tree files"
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help
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This option defines a space-separated list of device
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tree source (DTS) files relative to the "config/"
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folder of the qoriq-mc-utils repository, specified
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without the trailing .dts. It should be used when NXP
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provides an adequate DPL for the platform.
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config BR2_PACKAGE_QORIQ_MC_UTILS_TARGET_INSTALL_PATH
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string "Path on target to install DPL and DPC files"
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help
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The DPL and DPC files can optionally be deployed to
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the target at the path specified here. This is useful
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if the mcinitcmd U-Boot environment variable is
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configured to apply the DPL and DPC from the filesystem.
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endif
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