Hi all:
This patchset introduces LoongArch's built-in dtb support.
As we know, the Loongson-2K family supports DT. Inevitably, some systems
do not provide a useful device tree to the kernel at boot time. Chasing
around bootloaders for these systems is a headache, so we just keep a
device tree table in the kernel, keyed by the dts filename, that
contains the relevant DTBs.
Thanks.
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V3:
patch(1/7):
- Add reference to the common cpu schema.
patch(2/7):
- Add reviewed-by tag.
patch(4/7):
- Drop bootargs;
- Move the cpus node to dtsi, which is part of the SoC.
patch(5/7):
- Drop bootargs;
- Move the cpus node to dtsi, which is part of the SoC;
- Fix gmac0/1-mdio node: compatible is always the first property;
- Drop i2c-gpio node.
patch(6/7):
- Drop bootargs;
- Move the cpus node to dtsi, which is part of the SoC.
- Changes liointc to liointc-1.0, for Loongson-2K2000 has 32 interrupt
sources.
Link to V2:
https://lore.kernel.org/all/cover.1692088166.git.zhoubinbin@xxxxxxxxxxx/
V2:
patch(1/7):
- Drop model and clock-frequency properties;
- Add clocks property;
- Rewrite the description.
patch(2/7):
- Add the proper compatibles for boards.
patch(4/7)(5/7)(6/7):
- Format commit message head;
- Drop undocumented compatible, such as pci_bridge compatible;
- Distinguish the attributes, put SoC-related into DTSI and
board-related into DTS;
- Check DTS with 'make dtbs_check W=1'.
patch(7/7)
- New patch;
- Parses Molde name and CPU MHz from the DTS attribute.
Link to V1:
https://lore.kernel.org/loongarch/cover.1686882123.git.zhoubinbin@xxxxxxxxxxx/
Binbin Zhou (7):
dt-bindings: loongarch: Add CPU bindings for LoongArch
dt-bindings: loongarch: Add Loongson SoC boards compatibles
LoongArch: Allow device trees to be built into the kernel
LoongArch: dts: DeviceTree for Loongson-2K0500
LoongArch: dts: DeviceTree for Loongson-2K1000
LoongArch: dts: DeviceTree for Loongson-2K2000
LoongArch: Parsing CPU-related information from DTS
.../devicetree/bindings/loongarch/boards.yaml | 34 ++
.../devicetree/bindings/loongarch/cpus.yaml | 63 +++
arch/loongarch/Kconfig | 16 +
arch/loongarch/Makefile | 10 +-
arch/loongarch/boot/dts/Makefile | 7 +-
.../boot/dts/loongson-2k0500-ref.dts | 88 ++++
arch/loongarch/boot/dts/loongson-2k0500.dtsi | 254 ++++++++++++
.../boot/dts/loongson-2k1000-ref.dts | 171 ++++++++
arch/loongarch/boot/dts/loongson-2k1000.dtsi | 375 ++++++++++++++++++
.../boot/dts/loongson-2k2000-ref.dts | 72 ++++
arch/loongarch/boot/dts/loongson-2k2000.dtsi | 291 ++++++++++++++
arch/loongarch/kernel/env.c | 33 ++
arch/loongarch/kernel/setup.c | 9 +-
13 files changed, 1417 insertions(+), 6 deletions(-)
create mode 100644 Documentation/devicetree/bindings/loongarch/boards.yaml
create mode 100644 Documentation/devicetree/bindings/loongarch/cpus.yaml
create mode 100644 arch/loongarch/boot/dts/loongson-2k0500-ref.dts
create mode 100644 arch/loongarch/boot/dts/loongson-2k0500.dtsi
create mode 100644 arch/loongarch/boot/dts/loongson-2k1000-ref.dts
create mode 100644 arch/loongarch/boot/dts/loongson-2k1000.dtsi
create mode 100644 arch/loongarch/boot/dts/loongson-2k2000-ref.dts
create mode 100644 arch/loongarch/boot/dts/loongson-2k2000.dtsi
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2.39.3
