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ti-k3-r5-loader: support devicetree customization

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This is duplicated from the U-Boot makefile & Kconfig.

Similarly to U-Boot custom boards sometimes need to adjust the U-Boot
devicetree. For example, the AM64x SDRAM controller supports inline ECC
which needs to be enabled in the R5 loader devicetree.

Please note that some versions of U-Boot have broken external devicetree
support and may require manual patching to build. See commit [1]
in the U-Boot tree.

[1] 3609e1dc5f

Signed-off-by: Patrick Oppenlander <patrick.oppenlander@gmail.com>
Signed-off-by: Gero Schwäricke <gero.schwaericke@grandcentrix.net>
[Romain: add gitlab URL]
Signed-off-by: Romain Naour <romain.naour@smile.fr>
This commit is contained in:
Gero Schwäricke 2024-04-30 15:37:51 +02:00 committed by Romain Naour
parent 4d57014449
commit e4981d6756
2 changed files with 15 additions and 0 deletions
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10
boot/ti-k3-r5-loader/Config.in
View File

@ -95,6 +95,16 @@ config BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_CONFIG_FILE
help
Path to the TI K3 R5 Loader configuration file.
config BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_DTS_PATH
string "Device Tree Source file paths"
help
Space-separated list of paths to device tree source files
that will be copied to arch/arm/dts/ before starting the
build.
To use this device tree source file, the U-Boot configuration
file must refer to it.
config BR2_TARGET_TI_K3_R5_LOADER_TIBOOT3_BIN
string "tiboot3.bin binary name"
default "tiboot3.bin"

5
boot/ti-k3-r5-loader/ti-k3-r5-loader.mk
View File

@ -88,7 +88,12 @@ define TI_K3_R5_LOADER_INSTALL_SWSFW_ITB
fi
endef
TI_K3_R5_LOADER_CUSTOM_DTS_PATH = $(call qstrip,$(BR2_TARGET_TI_K3_R5_LOADER_CUSTOM_DTS_PATH))
define TI_K3_R5_LOADER_BUILD_CMDS
$(if $(TI_K3_R5_LOADER_CUSTOM_DTS_PATH),
cp -f $(TI_K3_R5_LOADER_CUSTOM_DTS_PATH) $(@D)/arch/arm/dts/
)
$(TARGET_CONFIGURE_OPTS) $(TI_K3_R5_LOADER_MAKE) -C $(@D) $(TI_K3_R5_LOADER_MAKE_OPTS)
endef