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| author | Binbin Zhou <zhoubinbin@loongson.cn> | 2024-01-17 07:43:00 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2024-01-17 07:43:00 +0300 |
| commit | 5f346a6e5970229c19c059e8fa62c3dbdde56e7b (patch) | |
| tree | e313fc1e336a6a67a4d6a30dbadea746b7634fcd /arch/loongarch/boot | |
| parent | db8ce2407090f695339e3406a034377dcdc2c942 (diff) | |
| download | linux-5f346a6e5970229c19c059e8fa62c3dbdde56e7b.tar.xz | |
LoongArch: Allow device trees be built into the kernel
During the upstream progress of those DT-based drivers, DT properties
are changed a lot so very different from those in existing bootloaders.
It is inevitably that some existing systems do not provide a standard,
canonical device tree to the kernel at boot time. So let's provide a
device tree table in the kernel, keyed by the dts filename, containing
the relevant DTBs.
We can use the built-in dts files as references. Each SoC has only one
built-in dts file which describes all possible device information of
that SoC, so the dts files are good examples during development.
And as a reference, our built-in dts file only enables the most basic
bootable combinations (so it is generic enough), acts as an alternative
in case the dts in the bootloader is unexpected.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/boot')
| -rw-r--r-- | arch/loongarch/boot/dts/Makefile | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/loongarch/boot/dts/Makefile b/arch/loongarch/boot/dts/Makefile index 5f1f55e911ad..1e24cdb5180a 100644 --- a/arch/loongarch/boot/dts/Makefile +++ b/arch/loongarch/boot/dts/Makefile @@ -1,4 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only -dtstree := $(srctree)/$(src) -dtb-y := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .dtb.o, $(CONFIG_BUILTIN_DTB_NAME)) |