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| author | Felix Moessbauer <felix.moessbauer@siemens.com> | 2023-06-27 10:06:20 +0200 |
|---|---|---|
| committer | Conor Dooley <conor.dooley@microchip.com> | 2023-07-12 18:27:18 +0200 |
| commit | ef6012f301f71fd8d8bc07dd9710f5e5de362cf5 (patch) | |
| tree | bf1925fa4a9bd630c41c9d1f628cbbaa095fd3d8 /arch/riscv/boot/dts/starfive | |
| parent | Linux 6.5-rc1 (diff) | |
| download | linux-ef6012f301f71fd8d8bc07dd9710f5e5de362cf5.tar.xz linux-ef6012f301f71fd8d8bc07dd9710f5e5de362cf5.zip | |
riscv: dts: Enable device-tree overlay support for starfive devices
Add the '-@' DTC option for the starfive devices. This option
populates the '__symbols__' node that contains all the necessary symbols
for supporting device-tree overlays (for instance from the firmware or
the bootloader) on these devices.
The starfive devices allow various modules to be connected and this
enables users to create out-of-tree device-tree overlays for these modules.
Please note that this change does increase the size of the resulting DTB
by ~20%. For example, with v6.4 increase in size is as follows:
jh7100-beaglev-starlight.dtb 6192 -> 7339
jh7100-starfive-visionfive-v1.dtb 6281 -> 7428
jh7110-starfive-visionfive-2-v1.2a.dtb 11101 -> 13447
jh7110-starfive-visionfive-2-v1.3b.dtb 11101 -> 13447
Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
Acked-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Diffstat (limited to 'arch/riscv/boot/dts/starfive')
| -rw-r--r-- | arch/riscv/boot/dts/starfive/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/riscv/boot/dts/starfive/Makefile b/arch/riscv/boot/dts/starfive/Makefile index 170956846d49..0141504c0f5c 100644 --- a/arch/riscv/boot/dts/starfive/Makefile +++ b/arch/riscv/boot/dts/starfive/Makefile @@ -1,4 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 +# Enables support for device-tree overlays +DTC_FLAGS_jh7100-beaglev-starlight := -@ +DTC_FLAGS_jh7100-starfive-visionfive-v1 := -@ +DTC_FLAGS_jh7110-starfive-visionfive-2-v1.2a := -@ +DTC_FLAGS_jh7110-starfive-visionfive-2-v1.3b := -@ + dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-beaglev-starlight.dtb dtb-$(CONFIG_ARCH_STARFIVE) += jh7100-starfive-visionfive-v1.dtb |