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TOP: Allow building platform out-of-tree

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This patch extends our current build-system for building platform
sources which are not part of OpenSBI sources.

For example:

Let's say we have out-of-tree ABC platform sources. We place these
sources under <XYZ>/ABC directory along with its config.mk and
objects.mk.

To build out-of-tree ABC platform from OpenSBI directory:
$ make PLATFORM_DIR=<XYZ>/ABC
OR
$ make PLATFORM_DIR=<XYZ> PLATFORM=ABC

To build out-of-tree ABC platform from <XYZ>/ABC directory:
$ make PLATFORM_DIR=<XYZ>/ABC -C <path_to_opensbi>
OR
$ make PLATFORM_DIR=<XYZ> PLATFORM=ABC -C <path_to_opensbi>

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
2019-04-04 11:49:43 +05:30
committed by Anup Patel
parent 40086daa62
commit 54f31e8209
4 changed files with 54 additions and 30 deletions
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4
firmware/objects.mk
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@@ -29,7 +29,7 @@ firmware-bins-$(FW_PAYLOAD) += fw_payload.bin
ifdef FW_PAYLOAD_PATH
FW_PAYLOAD_PATH_FINAL=$(FW_PAYLOAD_PATH)
else
FW_PAYLOAD_PATH_FINAL=$(build_dir)/$(platform_subdir)/firmware/payloads/test.bin
FW_PAYLOAD_PATH_FINAL=$(platform_build_dir)/firmware/payloads/test.bin
endif
firmware-genflags-$(FW_PAYLOAD) += -DFW_PAYLOAD_PATH=\"$(FW_PAYLOAD_PATH_FINAL)\"
ifdef FW_PAYLOAD_OFFSET
@@ -41,7 +41,7 @@ endif
ifndef FW_PAYLOAD_FDT_PATH
ifdef FW_PAYLOAD_FDT
FW_PAYLOAD_FDT_PATH=$(build_dir)/$(platform_subdir)/$(FW_PAYLOAD_FDT)
FW_PAYLOAD_FDT_PATH=$(platform_build_dir)/$(FW_PAYLOAD_FDT)
endif
endif
ifdef FW_PAYLOAD_FDT_PATH